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This paper describes the MGS Aranãs cultivar (H32-11-17-4-2-MS-MS) resulting from a cross between the cultivars Icatu 3851-2 and Catimor. The MGS Aranãs cultivar is characterized by small size, ripe red fruits, large seeds, coffee leaf rust resistance, an architecture suitable for densification, production stability, and high beverage quality. This new cultivar is recommended for the Sul de Minas, Cerrado Mineiro and Vale do Jequitinhonha regions. Made available in DSpace on 2022-09-06T16:19:22Z (GMT). No. of bitstreams: 1 MGS-Aranas.pdf: 523470 bytes, checksum: 6cb390299c1d24a45be2945ce0232021 (MD5) Previous issue date: 2021

Robust monitoring techniques for perennial crops have become increasingly possible due to technological advances in the area of Remote Sensing (RS), and the products are available through the European Space Agency (ESA) initiative. RS data provides valuable opportunities for detailed assessments of crop conditions at plot level using high spatial, spectral, and temporal resolution. This study addresses the monitoring of coffee at the plot level using RS, analyzing the relationship between the spatio-temporal variability of the Leaf Area Index (LAI) and the crop coefficient (Kc); the Kc being a biophysical variable that integrates the potential hydrological characteristics of an agroecosystem compared to the reference crop. Daily and one-year Kc were estimated using the relation of crop evapotranspiration and reference. ESA Sentinel-2 images were pre-analyzed and atmospherically corrected, and Top-of-the-Atmosphere (TOA) reflections converted to Top-of-the-Canopy (TOC) reflectance. The TOCs resampled at the 10m resolution, and with the angles corresponding to the directional information at the time of the acquisition, the LAI was estimated using the trained neural network available in the Sentinel Application Platform (SNAP). During 75% of the monitored days, Kc ranged between 1.2 and 1.3 and, the LAI analyzed showed high spatial and temporal variability at the plot level. Based on the relationship between the biophysical variables, the LAI variable can substitute the Kc and be used to monitor the water conditions at the production area as well as analyze spatial variability inside that area. Sentinel-2 products could be more useful in monitoring coffee in the farm production area. Made available in DSpace on 2019-12-13T18:09:40Z (GMT). No. of bitstreams: 1 RelationshipbetweenSpatioTemporal.pdf: 1699288 bytes, checksum: c67947cc07deea8a75fced475ce7cee5 (MD5) Previous issue date: 2019

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T19:00:08Z No. of bitstreams: 1 S0034-737X2011000600001.pdf: 303009 bytes, checksum: 9abcdeecbf7078ac5b549ad6fd0f26ae (MD5) Made available in DSpace on 2013-08-22T19:00:08Z (GMT). No. of bitstreams: 1 S0034-737X2011000600001.pdf: 303009 bytes, checksum: 9abcdeecbf7078ac5b549ad6fd0f26ae (MD5) Previous issue date: 2011-12-01 Made available in DSpace on 2013-09-30T19:58:05Z (GMT). No. of bitstreams: 2 S0034-737X2011000600001.pdf: 303009 bytes, checksum: 9abcdeecbf7078ac5b549ad6fd0f26ae (MD5) S0034-737X2011000600001.pdf.txt: 25647 bytes, checksum: 32c97d5f95a812599aafdb59a1970175 (MD5) Previous issue date: 2011-12-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:15:00Z No. of bitstreams: 2 S0034-737X2011000600001.pdf: 303009 bytes, checksum: 9abcdeecbf7078ac5b549ad6fd0f26ae (MD5) S0034-737X2011000600001.pdf.txt: 25647 bytes, checksum: 32c97d5f95a812599aafdb59a1970175 (MD5) Made available in DSpace on 2014-05-20T15:15:00Z (GMT). No. of bitstreams: 2 S0034-737X2011000600001.pdf: 303009 bytes, checksum: 9abcdeecbf7078ac5b549ad6fd0f26ae (MD5) S0034-737X2011000600001.pdf.txt: 25647 bytes, checksum: 32c97d5f95a812599aafdb59a1970175 (MD5) Previous issue date: 2011-12-01 A cultura in vitro é uma técnica controlada que proporciona estudar os processos nutricionais, fisiológicos e bioquímicos de embriões em vários estádios de desenvolvimento. O objetivo foi avaliar a relação entre estádio de desenvolvimento do fruto e concentração de sacarose, no meio, durante o desenvolvimento, in vitro, de embriões de cafeeiro. Frutos de Coffea arabica cv. Acaiá foram colhidos, lavados, desinfestados, seus embriões excisados e inoculados em meio de cultivo MS, com pH ajustado para 5,8. Os tratamentos consistiram em combinação de concentrações de sacarose (0, 15, 30, 60, 90 e 120 g L-1) e estádios de desenvolvimento do fruto (chumbinho, chumbo, verde, verde-cana, cereja e passa). Após a inoculação, os embriões foram incubados em sala de crescimento, a 27 ± 1 ºC, fotoperíodo de 16 horas e 35 µ mol m-2 s-1 de intensidade luminosa. O delineamento experimental utilizado foi inteiramente casualizado, em esquema fatorial 6 x 6, com seis repetições constituídas por quatro tubos cada. Após 60 dias de desenvolvimento, as plântulas foram avaliadas com base no comprimento da parte aérea, massa de matéria fresca total da parte aérea e das raízes. Observaram-se influências das concentrações de sacarose e dos estádios de desenvolvimento do fruto no crescimento e desenvolvimento das plântulas. Resultados satisfatórios para todas as variáveis estudadas foram obtidos com embriões excisados no estádio verde, inoculados em meio de cultivo suplementado com 51 a 70 g L-1 de sacarose. In vitro culture offers a controlled system to study the nutritional, physiologic and biochemical processes of embryos in several developmental stages. In this work, the relationship between development stage of the fruit and sucrose concentration in the culture medium for in vitro development of coffee embryos was evaluated. Embryos of Coffea arabica L. cv. Acaiá were excised and inoculated into the culture medium MS with pH adjusted to 5.8. The treatments consisted of the combination of six sucrose concentrations (0, 15, 30, 60, 90 and 120 g L-1) and six developmental stages of the fruit ('pin-head', 'lead', 'green', 'green-yellow', 'cherry' and 'overripe'). After inoculation, the embryos were incubated in growth room at 27 ± 1ºC, photoperiod of 16 hours and 35 µ mol m-2 s-1 of luminous intensity. The experimental design was entirely randomized (6 x 6 factorial), with six repetitions and the parcel constituted by four tubes each. After 60 days, the seedlings were evaluated based on shoot length, total fresh weight of shoot and root. Influences of the sucrose concentrations and the stages of fruit development were observed, and the best results were obtained with embryos excised in the stage 'green' and inoculated in the culture medium supplemented with 51 to 70 g sucrose L-1. da Empresa de Pesquisa Agropecuária de Minas Gerais Unidade Regional Universidade Estadual de São Paulo FCAV Universidade Federal de Lavras (UFLA) Departamento de Agricultura

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:55:37Z No. of bitstreams: 1 S0102-09352004000300010.pdf: 190922 bytes, checksum: 3cfdcaa8e4be54feba3a14e77aa49e45 (MD5) Made available in DSpace on 2013-08-22T18:55:37Z (GMT). No. of bitstreams: 1 S0102-09352004000300010.pdf: 190922 bytes, checksum: 3cfdcaa8e4be54feba3a14e77aa49e45 (MD5) Previous issue date: 2004-06-01 Made available in DSpace on 2013-09-30T19:48:39Z (GMT). No. of bitstreams: 2 S0102-09352004000300010.pdf: 190922 bytes, checksum: 3cfdcaa8e4be54feba3a14e77aa49e45 (MD5) S0102-09352004000300010.pdf.txt: 34917 bytes, checksum: 69ce1f5edff816162ae5c3fc253eee07 (MD5) Previous issue date: 2004-06-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:41:49Z No. of bitstreams: 2 S0102-09352004000300010.pdf: 190922 bytes, checksum: 3cfdcaa8e4be54feba3a14e77aa49e45 (MD5) S0102-09352004000300010.pdf.txt: 34917 bytes, checksum: 69ce1f5edff816162ae5c3fc253eee07 (MD5) Made available in DSpace on 2014-05-20T13:41:49Z (GMT). No. of bitstreams: 2 S0102-09352004000300010.pdf: 190922 bytes, checksum: 3cfdcaa8e4be54feba3a14e77aa49e45 (MD5) S0102-09352004000300010.pdf.txt: 34917 bytes, checksum: 69ce1f5edff816162ae5c3fc253eee07 (MD5) Previous issue date: 2004-06-01 Estudou-se o efeito da estação do ano na dinâmica folicular e no momento de ovulação utilizando-se 25 vacas não lactantes da raça Gir (10 no inverno e 15 no verão) e 15 vacas não lactantes da raça Nelore (sete no inverno e oito no verão), todas com ciclo estral normal. Após a detecção do estro, as vacas foram submetidas a exames ultra-sonográficos a cada seis horas com a finalidade de monitorar o momento de ovulação e, posteriormente, uma vez ao dia durante todo o ciclo estral, sendo monitorado um ciclo estral por animal e por estação do ano. As características foliculares não foram afetadas pela estação do ano e não diferiram entre as raças. Houve maior percentagem de ciclos com três (68,0 e 66,7%) e duas ondas foliculares (24,0 e 26,7%) nas raças Gir e Nelore, respectivamente. Os intervalos entre estros e entre ovulações foram menores para ciclos com duas ondas foliculares. A manifestação do estro ocorreu mais nas primeiras horas da manhã (57,3%) e no final da tarde e início da noite (28,0%). O momento de ovulação ocorreu 23,1±5,6 horas após a detecção do estro nas duas raças. Season effect on follicular dynamic and ovulation time were studied on 25 non-lactating Gir cows (10 cows in the winter and 15 in the summer) and 15 non-lactating Nelore cows (7cows in the winter and 8 in the summer) exhibiting normal estrus cycles. After estrus detection cows were submitted to ultrasound examination every six hours to determine the time of ovulation, and after that, the examinations were performed once-a-day throughout the estrus cycle for each season. No effect of breed and season on follicular characteristics was observed. The follicular dynamic was characterized by the predominance of three (68.0 and 66.7%) and two (24.0 and 26.7%) follicular waves for Gir and Nelore cows, respectively. The estrus-to-ovulation intervals were shorter for cycles with two follicular waves. Most estrus signs were detected in the morning (57.3%) and late afternoon (28.0%). on average, Gir and Nelore cows ovulated 23 hours after estrus onset. UFMG Escola de Veterinária Universidade Federal de Viçosa (UFV) Universidade Estadual de Montes Claros Empresa de Pesquisa Agropecuária de Minas Gerais UNESP Faculdade de Medicina Veterinária Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) - Gado de Leite UNESP Faculdade de Medicina Veterinária

Root-knot nematodes (RKNs, genus Meloidogyne) affect a large number of crops causing severe yield losses worldwide, more specifically in tropical and sub-tropical regions. Several plant species display high resistance levels to Meloidogyne, but a general view of the plant immune molecular responses underlying resistance to RKNs is still lacking. Combining comparative genomics with differential gene expression analysis may allow the identification of widely conserved plant genes involved in RKN resistance. To identify genes that are evolutionary conserved across plant species, we used OrthoFinder to compared the predicted proteome of 22 plant species, including important crops, spanning 214 Myr of plant evolution. Overall, we identified 35,238 protein orthogroups, of which 6,132 were evolutionarily conserved and universal to all the 22 plant species (PLAnts Common Orthogroups-PLACO). To identify host genes responsive to RKN infection, we analyzed the RNA-seq transcriptome data from RKN-resistant genotypes of a peanut wild relative (Arachis stenosperma), coffee (Coffea arabica L.), soybean (Glycine max L.), and African rice (Oryza glaberrima Steud.) challenged by Meloidogyne spp. using EdgeR and DESeq tools, and we found 2,597 (O. glaberrima), 743 (C. arabica), 665 (A. stenosperma), and 653 (G. max) differentially expressed genes (DEGs) during the resistance response to the nematode. DEGs' classification into the previously characterized 35,238 protein orthogroups allowed identifying 17 orthogroups containing at least one DEG of each resistant Arachis, coffee, soybean, and rice genotype analyzed. Orthogroups contain 364 DEGs related to signaling, secondary metabolite production, cell wall-related functions, peptide transport, transcription regulation, and plant defense, thus revealing evolutionarily conserved RKN-responsive genes. Interestingly, the 17 DEGs-containing orthogroups (belonging to the PLACO) were also universal to the 22 plant species studied, suggesting that these core genes may be involved in ancestrally conserved immune responses triggered by RKN infection. The comparative genomic approach that we used here represents a promising predictive tool for the identification of other core plant defense-related genes of broad interest that are involved in different plant-pathogen interactions.

Summary Meloidogyne paranaensis is one of the most destructive root-knot nematode species affecting coffee cultivation. This species presents different esterase phenotypes (Est): P1, P2 and P2a, previous studies showing that Est P2 and P2a populations were more aggressive to susceptible coffee cultivars than populations with Est P1, and local producers have even asked if they may be described as other species. The objective of this study was to characterise M. paranaensis populations of different esterase phenotypes (Est P1, P2 and P2a), regarding morphological, morphometric and phylogenetic relationships in distinct regions of ribosomal DNA (rDNA), mitochondrial gene cytochrome c oxidase II (COII) and nuclear protein coding gene HSP90. All populations were identified by esterase phenotype and SCAR-specific markers. Regarding morphology/morphometrics, the three populations were very similar to the description of the species, differing only in the morphology of the male stylet and second-stage juvenile hyaline tail length. Based on the phylogenetic analysis, a low intraspecific variability was detected among M. paranaensis Est P1 and Est P2 populations from Brazil; the Guatemalan population Est P2a, however, showed a genetic differentiation from the Brazilian populations, confirming the geographic genetic distance of this aggressive population. According to this multi-source approach study, in spite of the intraspecific variation, the phylogenetic position of M. paranaensis is absolute, regardless of the enzymatic phenotype and SCAR markers.

Made available in DSpace on 2018-12-11T17:15:56Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-01-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) With the objective to evaluate the modifications in the fruit quality, ‘Palmer’ mangoes were stored at 12.8 °C for 30 days in controlled atmosphere storage that contained a low level of oxygen (5 kPa) which was associated with increasing levels of carbon dioxide CO2 (0, 1, 5, 10, 15 and 20 kPa CO2). Controlled atmosphere storage did not effect mango respiration. However, transfer mangoes, that were previously stored at high levels of CO2 (5 kPa O2 + 15 kPa CO2 and 5 kPa O2 + 20 kPa CO2) to ambient temperature presented higher respiratory rates. No significant effects of increasing CO2 levels on color (L*, chromaticity, and hue angle), firmness, physical–chemical parameter and carbohydrate metabolism (total and reducing sugars, soluble pectin) were observed. After transfer to ambient temperature the mangoes ripened normally without any signs of CO2 injury. Therefore, the increment levels of CO2 neither improved the quality of the ‘Palmer’ mangoes nor presented a synergistic effect with low-oxygen when compared to 5 kPa O2-control. Departamento de Produção Vegetal Faculdade de Ciências Agrárias e Veterinárias (FCAV) Universidade Estadual Paulista (UNESP), Via de acesso Paulo Donato Castellane s/n Unidade Regional Norte de Minas Empresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG), Rodovia MG 122, km 155, Zona Rural Escola de Agronomia (EA) Setor de Horticultura Universidade Federal de Goiás (UFG), Avenida Esperança s/n – Campus Universitário Departamento de Produção Vegetal Faculdade de Ciências Agrárias e Veterinárias (FCAV) Universidade Estadual Paulista (UNESP), Via de acesso Paulo Donato Castellane s/n FAPESP: 2005/56159-1 FAPESP: 2005/56160-0

The specialty coffee market has grown significantly in the past decades and has several cultivars with productive potential. The objective of this study was to evaluate the sensory profile of the beverage produced from Coffea arabica L. genotypes based on postharvest processing and to identify cultivars with the greatest genetic potential for coffee cultivation in the city of Araponga, Minas Gerais, Brazil. The experiment was a randomized complete block design with two replicates and 11 genotypes with different levels of resistance to rust. The sensory profile demonstrated an interaction between the genotype and the processing technique. Five of the genotypes presented total scores above 85 points according to the SCAA protocol. Moreover, two of these genotypes yielded heightened sensory notes after undergoing dry processing. The selection of coffee genotypes should consider the level of technology involved in the drying of the coffee beans, which preserves the potential quality of the beverage. Made available in DSpace on 2019-12-30T18:10:11Z (GMT). No. of bitstreams: 1 SensoryqualityofcoffeaarabicaL.genotypes.pdf: 675494 bytes, checksum: a5dac272c36d53f2319aa814a5b3557e (MD5) Previous issue date: 2019

The change of wine grape harvest from wet season (summer) to dry season (winter) by changing the pruning management has improved quality of wines produced in the Brazilian Southeast. However, the vines need to be spur pruned twice a year, i.e. with a 1st pruning in August (winter pruning) for a vegetative cycle during the hot and wet summer, and a 2nd pruning in January (summer pruning) for a productive cycle during the cold and dry season. This double pruning strategy is made necessary by the fact that latent buds developed during the dry season cycle are not fruitful to support a productive cycle in the following year. This histological study, performed in the South of Minas Gerais State (Brazil), showed that annual single pruning done in the wet season (in January) displayed a high rate of necrosis on primary and secondary buds (bud necrosis – BN). In April, 99 days after summer pruning (DASP), the rates of BN were 40 % and 50 % at basal and apical node positions, respectively, reaching 80 % of BN in December (322 DASP). As a consequence of BN, bud potential fertility was drastically reduced from 0.5 inflorescence primordial (IP) per bud (in July) to 0.06 (in December) and bud burst in the next cycle from secondary and tertiary bud axes. Vines managed by double pruning system (submitted to summer and winter pruning) displayed a much higher fruitfulness potential, i.e. 1.46 IP per bud in December (112 days after winter pruning) and limited BN occurrence (20 %). On single pruned vines, we also observed a significant decrease of starch content in canes, trunks and roots. Internal bud anatomy showed that a random cell breakdown started 70 days DASP. At 211 DASP, all buds showed a large starch granule concentration, raphides and crystals of calcium oxalate inside idioblasts of leaf primordia and also in cortical parenchyma of the vegetative axis. The bud starch content was increased and a positive correlation between necrosis and starch accumulation was observed. The impact of carbohydrate availability on bud necrosis development was discussed. This study showed that the necrosis development towards secondary and tertiary axis of the dry season buds is the main reason of unfruitfulness in the vineyards managed by single pruning in the wet season, making the double pruning compulsory., VITIS - Journal of Grapevine Research, Vol 58 No 3 (2019): Vitis

Genomic Selection (GS) has allowed the maximization of genetic gains per unit time in several annual and perennial plant species. However, no GS studies have addressed Coffea arabica, the most economically important species of the genus Coffea. Therefore, this study aimed (i) to evaluate the applicability and accuracy of GS in the prediction of the genomic estimated breeding value (GEBV); (ii) to estimate the genetic parameters; and (iii) to evaluate the time reduction of the selection cycle by GS in Arabica coffee breeding. A total of 195 Arabica coffee individuals, belonging to 13 families in generation of F2, susceptible backcross and resistant backcross, were phenotyped for 18 agronomic traits, and genotyped with 21,211 SNP molecular markers. Phenotypic data, measured in 2014, 2015, and 2016, were analyzed by mixed models. GS analyses were performed by the G-BLUPmethod, using the RKHS (Reproducing Kernel Hilbert Spaces) procedure, with a Bayesian algorithm. Heritabilities and selective accuracies were estimated, revealing moderate to high magnitude for most of the traits evaluated. Results of GS analyses showed the possibility of reducing the cycle time by 50%, maximizing selection gains per unit time. The effect of marker density on GS analyses was evaluated. Genomic selection proved to be promising for C. arabica breeding. The agronomic traits presented high complexity for they are controlled by several QTL and showed low genomic heritabilities, evidencing the need to incorporate genomic selection methodologies to the breeding programs of this species. Made available in DSpace on 2019-03-09T00:34:09Z (GMT). No. of bitstreams: 1 Earlyselectionenabledbytheimplementation.pdf: 585900 bytes, checksum: fde1543a047334f2e1fa8511738aba4e (MD5) Previous issue date: 2019-03-08

Resumo: Este estudo objetivou avaliar o comportamento sexual e a dinâmica ovulatória de cabras da raça Toggenburg após a indução do estro com dispositivo intravaginal de progesterona durante seis, nove e 12 dias de permanência. No momento da inserção do dispositivo e 24 horas antes da retirada do dispositivo, foi administrado 5mg de dinoprost e 200UI de eCG, respectivamente. A dinâmica ovulatória foi acompanhada por ultrassonografia a cada oito horas, enquanto o estro foi observado a cada 12 horas. Todas as cabras apresentaram estro. O intervalo da retirada do dispositivo ao início do estro foi de 29,5 ± 9,6 para G6dias; 34,0 ± 6,0 e 32,4 ± 7,7h, G9dias e G12dias, respectivamente. Igualmente, foi encontrada diferença (P0,05). Todos os protocolos foram eficientes em induzir o estro sincronizado em cabras da raça Toggenburg, trabalhando em conjunto com a eficiência reprodutiva e produtiva desses animais. [Reproductive parameters after induction of estrus with different ranges of the vaginal device in acyclic Toggenburg goats]. Abstract: This study aimed to evaluate the sexual behavior and the ovulatory dynamics of Toggenburg goats after induction of synchronized estrus by an intravaginal progesterone device for six, nine and twelve days. At the device insertion and 24 h before the device removal, 5mg of dinoprost and 200 UI of eCG was administered, respectively. The ovulatory dynamics was assessed by ultrasound every 8 h, while the sexual behavior was observed every 12 h. All goats showed estrus. The intervals from device removal to estrus were 29.5 ± 9.7, 34.0 ± 6.0 and 32.4 ± 7.7h to G6days, G9days and G12days, respectively. Iqually, it was found difference (P0.05). All treatments were effective for the induction of synchronized estrus in Toggenburg goats, working jointly with the reproductive and productive efficiency of these animals. Made available in DSpace on 2018-08-23T00:44:07Z (GMT). No. of bitstreams: 1 cnpc2018Parametros.pdf: 246361 bytes, checksum: 2fe9c08859d7c033d94ea0d7369e6869 (MD5) Previous issue date: 2018-08-22

International audience; Genetic transformation of coffee (Coffea spp.), the second most traded commodity worldwide, is an alternative approach to introducing features that cannot be introgressed by traditional crossings. The transgenic stability, heritability and quantitative and spatial expression patterns of the seed-specific promoter phytohemagglutinin (PHA-L) from Phaseolus vulgaris were characterized in genetically modified C. arabica expressing the alpha-amylase inhibitor-1 (alpha-AI1) gene. The alpha-AI1 inhibitor shows considerable activity toward digestive enzymes of the coffee berry borer (CBB) Hypothenemus hampei. This insect pest expends its life cycle almost entirely in coffee berries. Transgene containment in the fruit is important to meeting food and environmental safety requirements for releasing genetically modified (GM) crops. PCR analysis of T2 coffee plants showed a Mendelian single-copy segregation pattern. Ectopic transgene expression was only detected in coffee grains, as demonstrated by reverse transcription-PCR analysis of different plant tissues. An intense immunocytochemical signal associated with alpha-AI1 protein expression was localized to endospermic cells. In addition, a delay in the larval development of CBB was observed after challenging transgenic coffee seeds with the insect. These results indicate that the PHA-L promoter might be a useful tool in coffee for the seed-specific expression of genes related to coffee bean productivity, quality and pest protection. The biotechnological applicability of the alpha-AI1 gene for controlling CBB is also discussed. This work is the first report showing a seed-specific transgene expression in coffee plants.

Made available in DSpace on 2018-12-11T16:38:21Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-01-01 Made available in DSpace on 2015-10-22T06:22:06Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-01-01. Added 1 bitstream(s) on 2015-10-22T09:46:16Z : No. of bitstreams: 1 S1413-70542015000100007.pdf: 308793 bytes, checksum: 850a1e2c44a9a2599ba1690a4bae3128 (MD5) Item merged in doublecheck by Luana Priscila Costa (luana@reitoria.unesp.br) on 2019-01-31T11:25:16Z Item was identical to item(s): 170074, 128723 at handle(s): http://hdl.handle.net/11449/167795, http://hdl.handle.net/11449/129643 Conduziu-se esta pesquisa, com o objetivo de adequar a metodologia dos testes de envelhecimento acelerado e condutividade elétrica para determinação do potencial fisiológico em sementes de crambe. Seis lotes de sementes de crambe cultivar FMS Brilhante foram submetidos à determinação do teor de água, teste de germinação, primeira contagem de germinação, emergência, índice de velocidade de emergência. Para o teste de envelhecimento acelerado, foi utilizada a metodologia tradicional com o uso de água e com solução saturada de cloreto de potássio e cloreto de sódio em 3 períodos de exposição (24, 48 e 72 horas) a 41°C; o teste de condutividade elétrica foi realizado com quatro tratamentos de pré-embebição (0, 2, 4 e 8 horas) e quatro períodos de embebição (4, 8, 16 e 24 horas) a 25°C. O teste de envelhecimento acelerado com água por 72 horas e o teste de condutividade elétrica com 2 horas de pré- embebição e avaliação, após 16 horas, foram eficientes para a classificação dos lotes de sementes de crambe quanto à qualidade fisiológica. The aim of this study was to adapt the methodology of the accelerated aging and electrical conductivity tests for determination of physiological potential in crambe seeds. Six seed lots of crambe (cv. FMS Brilhante) were subjected to determination of moisture content, germination test, first count germination, emergence, and emergence speed index. For the accelerated aging test, the traditional methodology was used with water, and with a saturated potassium chloride and sodium chloride solution in three periods of exposure (24, 48, and 72 hours) at 41°C; the electrical conductivity test was performed with four pre-soaking treatments (0, 2, 4, and 8 hours) and four soaking periods (4, 8, 16, and 24 hours) at 25°C. The accelerated aging test with water for 72 hours and the electrical conductivity test with 2 hours of pre-soaking and assessment after 16 hours were effective for classification of the crambe seed lots in regard to physiological quality. Universidade Estadual Paulista “Júlio de Mesquita Filho”/UNESP, Rua José Barbosa de Barros, 1780, Fazenda Experimental Lageado Universidade de São Paulo/USP, Escola Superior de Agricultura “Luiz de Queiroz”/ESALQ Universidade Federal de Lavras/UFLA, Departamento de Agricultura/DAG Empresa de Pesquisa Agropecuária de Minas Gerais/EPAMIG Universidade Estadual Paulista “Júlio de Mesquita Filho”/UNESP, Rua José Barbosa de Barros, 1780, Fazenda Experimental Lageado

Made available in DSpace on 2015-08-26T19:21:39Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-03-01. Added 1 bitstream(s) on 2015-08-31T13:04:36Z : No. of bitstreams: 1 S1807-86212015000100029.pdf: 247570 bytes, checksum: bafdf374cb6b72e16fbb702ca601c92a (MD5) Ministério da Agricultura e Abastecimento (Mapa) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) Jatropha curcas possui alto teor de óleo biocombustível que poderia substituir os combustíveis poluentes, possuindo grande potencial para o cultivo em larga escala de monocultivos no sistema convencional. Nós exploramos a ocorrência, a distribuição espacial e a resposta funcional das principais espécies fitófagas e seus inimigos naturais com potencial para controle biológico conservativo. Começamos a amostragem de fitófagos e predadores quando o J. curcas atingiu seis meses de idade. As espécies fitófagas mais frequentes foram ninfas e adultos Empoasca kraemeri, seguido por Frankliniella schultzei e Myzus persicae. Dentre os predadores, Ricoseius loxochelis, Iphiseioides zuluagai, Araneidae, Psyllobora vigintimaculata (larv), Psyllobora vigintimaculata (adulto) e Anthicus sp. foram as mais frequentes. Os parasitoides mais comuns foram das famílias Encyrtidae e Braconidae. As maiores densidades de E. kraemeri fitófagos e F. schultzei nas bordas da cultura de J. curcas seguem padrões espaciais semelhantes aos de inimigos naturais de I. zuluagai e A. sp. Esses artrópodes podem ser considerados eficientes predadores de estágios imaturos de E. kraemeri e F. schultzei em J. curcas. Jatropha curcas has a high biofuel oil content, which could replace polluting fuels, and has great potential for large scale monoculture cultivation in the conventional system. We explored the occurrence, spatial distribution and the functional response of the main phytophagous species of this plant and their natural enemies to explore the potential for conservative biological control. We began sampling phytophagous species and predators when J. curcas plants were six months old. The most common species of phytophagous insects were nymphs and adults of Empoasca kraemeri, followed by Frankliniella schultzei and Myzus persicae. Among the predators, Ricoseius loxocheles, Iphiseioides zuluagai, Araneidae, larvae and adults of Psyllobora vigintimaculata and Anthicus sp. were the most frequently encountered. The most common parasitoids were the families Encyrtidae and Braconidae. The highest densities of E. kraemeri and F. schultzei on the edges of the J. curcas crop follow spatial patterns similar to those of their natural enemies I. zuluagai and Anthicus sp. These arthropods can be considered efficient predators of immature stages of E. kraemeri and F. schultzei on J. curcas. Universidade Federal de Viçosa,Instituto de Ciências Agrárias, Campus de Rio Paranaíba, M- 230, Km 7, s/n, 38810-000, Rio Paranaíba, Minas Gerais, Brazil Universidade Estadual Paulista, Programa de Pós-graduação em Entomologia, Jaboticabal, São Paulo, Brazil Empresa de Pesquisa Agropecuária de Minas Gerais, Viçosa, Minas Gerais, Brazil Universidade Federal de Viçosa, Departamento de Fitotecnia, Viçosa, Minas Gerais, Brazil Universidade Estadual Paulista Programa de Pós-graduação em Entomologia

O café, importante produto nas exportações brasileiras, necessita de constante monitoramento para que os sistemas de previsão de safras existentes sejam confiáveis. Imagens orbitais de média resolução espacial são ferramentas com grande potencial para mapeamento do uso do solo e identificação de culturas agrícolas. Nesta pesquisa, visando o mapeamento de áreas cafeeiras, avaliou-se o desempenho da classificação baseada em objetos, associada a técnicas de mineração de dados, aplicada em imagens OLI/Landsat-8. Foram feitas três classificações automáticas, a primeira constando exclusivamente atributos espectrais, a segunda acrescentando atributos texturais e a terceira, incluindo também classes de iluminação do terreno. Foram utilizadas seis imagens multiespectrais, datadas de três diferentes estádios fenológicos da cultura: frutificação, granação e repouso. A validação das classificações foi feita por meio do Método de Monte Carlo utilizando como referência mapas visualmente interpretados. As classificações feitas exclusivamente com atributos espectrais resultaram, para a classe café, exatidão média de 57%. Não houve estádio fenológico que proporcionasse maior exatidão à classe café, entretanto ao incluir os atributos texturais, a exatidão da classe café melhorou para 76%. Assim, observa-se que atributos texturais mostraram-se importantes para detecção automática de áreas cafeeiras. Made available in DSpace on 2018-03-16T00:34:17Z (GMT). No. of bitstreams: 1 Mapeamentodaculturacafeeirapormeiodeclassificacao.pdf: 3442546 bytes, checksum: 24e354b08c391edf3c5ef14bb4e20389 (MD5) Previous issue date: 2018-03-15 Título em inglês: Coffee crop detection by automatic classification using spectral and textural attributes and illumination factor.

Meloidogyne paranaensis is one of the most destructive root-knot nematode (RKN) species parasitizing coffee in Brazil and in the Americas generally. The objectives of this study were to assess the genetic variability, aggressiveness and virulence of seven different M. paranaensis populations on susceptible and resistant Coffea spp. All seven RKN populations were identified by biochemical and molecular methods. Coffee seedlings were inoculated in the greenhouse, and the nematode reproduction factor was used to infer their reproduction on coffee genotypes. Phylogenetic studies showed a low genetic variability in M. paranaensis populations, regardless of the existence of three esterase phenotypes (Est P1, P2 and P2a), except for the population Est P2a from Guatemala, which is genetically different from other M. paranaensis populations from Brazil. The Est P2a and Est P2 (Herculândia, SP, Brazil) populations were the most aggressive on two susceptible C. arabica cultivars under greenhouse conditions. None of the M. paranaensis populations was virulent on resistant coffee genotypes, confirming their resistance to the seven M. paranaensis populations tested. The resistant coffee cultivars, namely Clone 14 INCAPER, Catuai Vermelho x Amphillo MR2161 (E1 16-5 III), Apoata IAC 2258, Timor Hybrid UFV 408-01 (E1 6-6 II) and IPR 100, exhibited segregation for resistance in the ratio of 0%, 2.4%, 12%, 26% and 29%, respectively. These are promising results, because they validate resistance against several M. paranaensis populations in different Coffea spp. genetic resources, which can be used in breeding programs or as rootstocks, such as ‘Apoata IAC 2258’ and ‘Clone 14 INCAPER’. This article is protected by copyright. All rights reserved.

Made available in DSpace on 2014-09-30T18:18:20Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-02-01Bitstream added on 2014-10-01T14:04:14Z : No. of bitstreams: 1 S0100-06832014000100010.pdf: 901490 bytes, checksum: dc50fa802c0fe25d8ef01e08778f14b3 (MD5) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Vários fatores causam alterações nas propriedades físicas do solo na agricultura moderna. O tempo de cultivo da cultura e a inclinação da área cultivada são exemplos de fatores que podem influenciar, bem como prejudicar, a estrutura do solo. O objetivo deste estudo foi analisar em plantações de café com diferentes idades de cultivo e com diferentes declividades na entrelinha, o efeito do tráfego de máquinas sobre as propriedades físicas do solo. O estudo foi desenvolvido em um Latossolo Vermelho-Amarelo. Selecionaram-se plantações de café com tempos de cultivo de 2, 7, 18 e 33 anos. Nessas plantações, foram selecionadas áreas (entrelinha do café) com inclinação lateral de 3, 9 e 15 %. O solo foi amostrado em três posições na entrelinha do café: linha de tráfego de baixo, linha de tráfego de cima e entre as linhas de tráfego (entrelinha). Amostras de solo foram coletadas em duas camadas (superficial e subsuperficial). As propriedades investigadas foram: porosidade total, macroporosidade, microporosidade, matéria orgânica, densidade e estabilidade de agregados. A declividade da entrelinha do cafeeiro influenciou a matéria orgânica e algumas propriedades físicas do solo, como microporosidade e estabilidade de agregados. As amostras na entrelinha (entre as linhas de tráfego) foram as que apresentaram os melhores resultados em termos de preservação da estrutura do solo, em relação às amostras das linhas de tráfegos (de baixo e de cima); as amostras da linha de tráfego de baixo evidenciaram melhores resultados em termos de preservação da estrutura do solo do que a linha de tráfego de cima. Observou-se que o tempo de cultivo da cultura foi o principal fator que interferiu na degradação estrutural dos solos na cultura do café. In modern agriculture, several factors cause changes in the soil physical properties. The time of establishment of a crop (plantation age) and the slope are examples of factors that moderate the impact of mechanized operations on the soil structure. The objective of this study was to analyze the effect of machinery traffic on the physical properties of a Red-Yellow Latosol under coffee plantations with different ages (2, 7, 18, and 33 years) and slope positions (3, 9 and 15 %). Samples were collected from three positions between coffee rows (lower wheel track, inter-row and upper wheel track) and at two depths (surface layer and sub-surface). Changes in the total porosity, macroporosity, microporosity, organic matter, bulk density, and aggregate stability were investigated. Our results showed that the slope influenced the organic matter content, microporosity and aggregate stability. The soil samples under the inter-row were minimally damaged in their structure, compared to those from under the lower and upper wheel track, while the structure was better preserved under the lower than the upper track. The time since the establishment of the crop, i.e., the plantation age, was the main factor determining the extent of structural degradation in the coffee plantation. Universidade Estadual Paulista Júlio de Mesquita Filho UFLA Department of Soil Science Federal University of Technology Department of Agricultural and Environmental Engineering Soil, Water and Environment Division Empresa de Pesquisa Agropecuária de Minas Gerais Universidade Estadual Paulista Júlio de Mesquita Filho

Made available in DSpace on 2018-12-11T17:28:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-09-01. Added 1 bitstream(s) on 2021-07-15T15:04:03Z : No. of bitstreams: 1 S0103-84782016000901553.pdf: 304186 bytes, checksum: f81cc5c12682a22fd04be2db689bd68e (MD5) Intercropping of vegetables and medicinal plants might produce favorable interactions for both crops, resulting in increased production and profit per unit area. It is known that active compounds can change because of several factors, including the cropping system. Therefore, the goal of this study was to evaluate the effect of intercropping of lettuce and marigold on the productivity of these crops and on the flavonoid content of marigold flowers. The experiment was conducted in the experimental area of EPAMIG in Oratorios-MG. Treatments consisted of lettuce + marigolds intercropping between rows, lettuce + marigold intercropping between plants, and monocultures of each species. Spacing was 0.3x0.3m. The experimental design consisted of randomized blocks with ten repetitions. Harvest of lettuce and marigold flowers started 45 days after transplantation (DAT) and extended up to 72 DAT for marigolds. Lettuce and marigold intercropping appears feasible because lettuce production did not differ between the monoculture and intercropped cultivations, and marigold productivity was higher when intercropped with lettuce. No change in the flavonoid (active chemicals of medicinal interest) content in the floral capitula of marigolds was observed. Empresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG) Faculdade de Ciências Agronômicas (FAC) Universidade Estadual Paulista “Julio de Mesquita Filho” (UNESP) Universidade Federal de Ouro Preto (UFOP) Universidade Federal de Viçosa (UFV) Faculdade de Ciências Agronômicas (FAC) Universidade Estadual Paulista “Julio de Mesquita Filho” (UNESP)

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T19:00:18Z No. of bitstreams: 1 S0103-84782011000300004.pdf: 159836 bytes, checksum: a94b91c253cb14da0776d02ce8bd75b4 (MD5) Made available in DSpace on 2013-08-22T19:00:18Z (GMT). No. of bitstreams: 1 S0103-84782011000300004.pdf: 159836 bytes, checksum: a94b91c253cb14da0776d02ce8bd75b4 (MD5) Previous issue date: 2011-03-01 Made available in DSpace on 2013-09-30T19:58:36Z (GMT). No. of bitstreams: 2 S0103-84782011000300004.pdf: 159836 bytes, checksum: a94b91c253cb14da0776d02ce8bd75b4 (MD5) S0103-84782011000300004.pdf.txt: 24514 bytes, checksum: 18e0fa51a6f1106784ec3e489f174e43 (MD5) Previous issue date: 2011-03-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:12:48Z No. of bitstreams: 2 S0103-84782011000300004.pdf: 159836 bytes, checksum: a94b91c253cb14da0776d02ce8bd75b4 (MD5) S0103-84782011000300004.pdf.txt: 24514 bytes, checksum: 18e0fa51a6f1106784ec3e489f174e43 (MD5) Made available in DSpace on 2014-05-20T13:12:48Z (GMT). No. of bitstreams: 2 S0103-84782011000300004.pdf: 159836 bytes, checksum: a94b91c253cb14da0776d02ce8bd75b4 (MD5) S0103-84782011000300004.pdf.txt: 24514 bytes, checksum: 18e0fa51a6f1106784ec3e489f174e43 (MD5) Previous issue date: 2011-03-01 Visando a alcançar alta eficiência na indução de calos a partir de explantes foliares de plantas matrizes de C. arabica com alta heterozigose, por meio da embriogênese somática indireta, foram instalados três experimentos. O primeiro experimento foi conduzido em esquema fatorial 2x5, constituído de dois meios de cultura (BOXTEL & BERTHOULY, 1996 e TEIXEIRA et al., 2004) e cinco genótipos de C. arabica. No segundo experimento, foi avaliado o potencial de produção de calos embriogênicos em 10 genótipos, sendo cada genótipo considerado como um tratamento e, no terceiro experimento, foram avaliadas as variações nas concentrações de 2.4-D (2,5 e 20µM) e 2-iP (2,5 e 20µM) nos meios primário e secundário de TEIXEIRA et al. (2004). As culturas foram mantidas a 25oC, sob obscuridade. Para os genótipos 2.2 e 7.2, verificou-se a superioridade do meio de cultura Teixeira et al. (2004) em relação ao meio BOXTEL & BERTHOULY (1996). No genótipo 4.2, observou-se o comportamento inverso, ou seja, a superioridade do meio BOXTEL & BERTHOULY (1996). Os genótipos 3.0 e 5.0 apresentaram o mesmo comportamento em ambos os meios de cultura estudados, evidenciando que a produção de embriões somáticos é fortemente dependente do genótipo. A indução de calos depende da relação de 2-iP e 2.4-D. A combinação de 20.0µM of 2.4-D e 20.0µM of 2-iP promoveu a maior porcentagem de indução de calos embriogênicos. Three experiments were carried out with the objective of achieving high effectiveness in calli induction from high heterozygosis leaf explants of Coffea arabica through indirect somatic embryogenesis. A randomized-block design in a 2x5 factorial arrangement made up of two media [BOXTEL & BERTHOULY (1996) and TEIXEIRA et al. (2004)] and five C. arabica genotypes were used in the first experiment. In the second experiment the embryogenic calli production potential was evaluated in ten genotypes. Each of them was considered as a treatment. In the third experiment the variations in both 2.4-D (2.5 e 20µM) and 2-iP (2.5 e 20µM) concentrations in TEIXEIRA et al. (2004) medium and secondary media were evaluated. Crops were kept in a growth room under darkness, at 25±2oC. The medium described by TEIXEIRA et al (2004) was found to be superior when compared to that described by BOXTEL & BERTHOULY (1996) in the 2.2 and 7.2 genotypes. An opposite behavior was noticed in 4.2 genotype, that is, BOXTEL & BERTHOULY (1996) had medium superiority. Both 3.0 and 5.0 genotypes had the same behavior in both media studied, which shows that the somatic embryo production depends on the genotype. Calli induction depends on the 2-iP and 2.4 D ratio. The 20.0µM of 2.4-D and 20.0µM of 2-iP combination caused the highest embryogenic calli induction rate. Empresa de Pesquisa Agropecuária de Minas Gerais Unidade Regional do Sul de Minas Empresa Brasileira de Pesquisa Agropecuária Café Fundação Procafé Universidade Federal de Lavras (UFLA) Departamento de Agricultura Universidade Estadual Paulista Centro de Estudo de Insetos Sociais Universidade Estadual Paulista Centro de Estudo de Insetos Sociais

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T19:01:14Z No. of bitstreams: 1 S0103-90162010000400009.pdf: 129628 bytes, checksum: b97adfe99cce447a517e95b109d3d3eb (MD5) Made available in DSpace on 2013-08-22T19:01:14Z (GMT). No. of bitstreams: 1 S0103-90162010000400009.pdf: 129628 bytes, checksum: b97adfe99cce447a517e95b109d3d3eb (MD5) Previous issue date: 2010-08-01 Made available in DSpace on 2013-09-30T20:01:02Z (GMT). No. of bitstreams: 2 S0103-90162010000400009.pdf: 129628 bytes, checksum: b97adfe99cce447a517e95b109d3d3eb (MD5) S0103-90162010000400009.pdf.txt: 23543 bytes, checksum: cd14ac2b71a0a72f905f25d4d17796b3 (MD5) Previous issue date: 2010-08-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:15:38Z No. of bitstreams: 2 S0103-90162010000400009.pdf: 129628 bytes, checksum: b97adfe99cce447a517e95b109d3d3eb (MD5) S0103-90162010000400009.pdf.txt: 23543 bytes, checksum: cd14ac2b71a0a72f905f25d4d17796b3 (MD5) Made available in DSpace on 2014-05-20T15:15:38Z (GMT). No. of bitstreams: 2 S0103-90162010000400009.pdf: 129628 bytes, checksum: b97adfe99cce447a517e95b109d3d3eb (MD5) S0103-90162010000400009.pdf.txt: 23543 bytes, checksum: cd14ac2b71a0a72f905f25d4d17796b3 (MD5) Previous issue date: 2010-08-01 Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) O pulgão-verde Schizaphis graminum (Rond.) (Hemiptera: Aphididae) é um dos principais insetos- praga da cultura do trigo (Triticum aestivum, L.). Agentes que induzem resistência como silício e acibenzolars-methyl (ASM) podem fornecer proteção às plantas contra insetos e doenças. Avaliou-se o efeito do silício e/ ou ASM no desenvolvimento e comportamento alimentar de S. graminum em plantas de trigo. Plantas de trigo cultivar Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) 22 foram tratadas com silício (ácido silícico a 1%) e acibenzolar-S-methyl (ASM) a 0.5%. Os parâmetros estudados foram biologia, excreção de honeydew e comportamento alimentar (de prova) monitorado por meio da técnica Electrical Penetration Graphs (EPG). Para o estudo de biologia e excreção de honeydew foram usadas dez repetições e 25 para EPG. A aplicação de agentes indutores de resistência reduziu o número de ninfas, prolongando a duração de período de pré-reprodutivo e o número de gotas de honeydew. O efeito de resistência foi localizado principalmente no floema, com redução de ingestão de seiva elaborada. The greenbug Schizaphis graminum (Rond.) (Hemiptera: Aphididae) is one of the main pestinsects of wheat (Triticum aestivum, L.). Resistance inducing agents as silicon (Si) and acibenzolar-s-methyl (ASM) can provide some protection against insects and diseases. The effect of Si and/or ASM on the development and probing behaviour of S. graminum in wheat plants was evaluated. Wheat plants (cultivar Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) 22) were treated with Si (silicic acid at the rate of 1%) and acibenzolar-S-methyl (ASM) at the rate of 0.5%. The effects of these treatments on greenbugs were analyzed by development parameters, honeydew excretion and probing behavior monitored by Electrical Penetration Graphs (EPG). The development and honeydew experiments consisted of ten replications each and EPG experiment was replicated 25 times. The application of both resistance inducing agents reduced fecundity, prolonged the duration of pre-reproductive period, and decreased honeydew production. Induced resistance was localized mainly at phloem level and caused a strong reduction of phloem sap ingestion, but some effect of ASM at parenchyma/mesophyll level could not be discounted as far fewer aphids reached the sieve elements. UFAM IEAA UFLA Depto. de Entomologia Unidade Regional Epamig Sul de Minas UNESP FCA Programa de Pós-Graduação em Agronomia/Proteção de Plantas UNESP FCA Programa de Pós-Graduação em Agronomia/Proteção de Plantas

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:48:57Z No. of bitstreams: 1 S0001-37652008000300004.pdf: 177318 bytes, checksum: deafefd86edd16eea9a79106260640b0 (MD5) Made available in DSpace on 2013-08-22T18:48:57Z (GMT). No. of bitstreams: 1 S0001-37652008000300004.pdf: 177318 bytes, checksum: deafefd86edd16eea9a79106260640b0 (MD5) Previous issue date: 2008-09-01 Made available in DSpace on 2013-09-30T19:10:56Z (GMT). No. of bitstreams: 2 S0001-37652008000300004.pdf: 177318 bytes, checksum: deafefd86edd16eea9a79106260640b0 (MD5) S0001-37652008000300004.pdf.txt: 24508 bytes, checksum: 8eff550519a102b9259becde67f7df51 (MD5) Previous issue date: 2008-09-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T14:21:25Z No. of bitstreams: 2 S0001-37652008000300004.pdf: 177318 bytes, checksum: deafefd86edd16eea9a79106260640b0 (MD5) S0001-37652008000300004.pdf.txt: 24508 bytes, checksum: 8eff550519a102b9259becde67f7df51 (MD5) Made available in DSpace on 2014-05-20T14:21:25Z (GMT). No. of bitstreams: 2 S0001-37652008000300004.pdf: 177318 bytes, checksum: deafefd86edd16eea9a79106260640b0 (MD5) S0001-37652008000300004.pdf.txt: 24508 bytes, checksum: 8eff550519a102b9259becde67f7df51 (MD5) Previous issue date: 2008-09-01 Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Com vistas a descobrir antimicrobianos de origem natural para uso terapêutico ou para a preservação de alimentos, o extrato metanólico das partes aéreas de Solanum palinacanthum foi submetido a fracionamentos direcionados por testes para avaliar a atividade antibacteriana e antifúngica. em decorrência, o flavonóide rutina e o ácido 3,5-dicafeoilquínico foram isolados por cromatografia em coluna e por cromatografia líquida de alta eficiência, para serem identificados por espectrometria de massas e de ressonância magnética nuclear. As concentrações inibitórias mínimas (CIM) do derivado do ácido cafeico contra Aeromonas hydrophila, Bacillus subtilis, Staphylococcus aureus e o fungo Aspergillus ochraceus foram 250, 1000, 1000 e > 568µg/mL, respectivamente. Contra os mesmos organismos, os valores de CIM para a rutina foram 1000, > 1000, > 1000 e 35µg/mL, respectivamente. A rutina mostrou-se muito promissora para o controle de A. ochraceus, pois seu valor de CIM contra tal fungo foi bem próximo ao observado para o cloreto de benzalcônio, que é empregado como fungicida no Brasil. To find out natural antimicrobial agents as alternative in therapeutics and to preserve food, the methanol extract of Solanum palinacanthum aerial parts was submitted to purification steps guided by antibacterial and antifungal assays. As a consequence, the flavonoid rutin and 3,5-dicaffeoylquinic acid were isolated by column chromatographyand high performance liquid chromatography, and identified by mass and nuclear magnetic resonance spectrometry. Minimal inhibitory concentrations (MIC) of the quinic acid derivative against Aeromonas hydrophila, Bacillus subtilis, Staphylococcus aureus and the fungus Aspergillus ochraceus were 250, 1000, 1000 and > 568µg/mL, respectively. Against the same microorganisms, MIC for rutin were 1000, > 1000, > 1000 and 35µg/mL, respectively. Rutinwas very promising for A. ochraceus control, since its MIC against such fungus was close to the one observed for benzalkonium chloride, which is used as a fungicide in Brazil. Universidade Federal de Lavras (UFLA) Departamento de Química Universidade Estadual Paulista Júlio de Mesquita Filho Instituto de Química Departamento de Química Orgânica Universidade Federal de Lavras (UFLA) Departamento de Medicina Veterinária Universidade Federal de Lavras (UFLA) Departamento de Biologia Empresa de Pesquisa Agropecuária de Minas Gerais Centro Tecnológico do Sul de Minas Universidade Estadual Paulista Júlio de Mesquita Filho Instituto de Química Departamento de Química Orgânica

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T19:07:02Z No. of bitstreams: 1 S1516-35982007000100027.pdf: 76071 bytes, checksum: 643ab5b8a332a9ecea9ea28b5eb6e68c (MD5) Made available in DSpace on 2013-08-22T19:07:02Z (GMT). No. of bitstreams: 1 S1516-35982007000100027.pdf: 76071 bytes, checksum: 643ab5b8a332a9ecea9ea28b5eb6e68c (MD5) Previous issue date: 2007-02-01 Made available in DSpace on 2013-09-30T20:11:29Z (GMT). No. of bitstreams: 2 S1516-35982007000100027.pdf: 76071 bytes, checksum: 643ab5b8a332a9ecea9ea28b5eb6e68c (MD5) S1516-35982007000100027.pdf.txt: 57605 bytes, checksum: b6b324c449a1a1dd4358a2dd1800d0be (MD5) Previous issue date: 2007-02-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:18:10Z No. of bitstreams: 2 S1516-35982007000100027.pdf: 76071 bytes, checksum: 643ab5b8a332a9ecea9ea28b5eb6e68c (MD5) S1516-35982007000100027.pdf.txt: 57605 bytes, checksum: b6b324c449a1a1dd4358a2dd1800d0be (MD5) Made available in DSpace on 2014-05-20T13:18:10Z (GMT). No. of bitstreams: 2 S1516-35982007000100027.pdf: 76071 bytes, checksum: 643ab5b8a332a9ecea9ea28b5eb6e68c (MD5) S1516-35982007000100027.pdf.txt: 57605 bytes, checksum: b6b324c449a1a1dd4358a2dd1800d0be (MD5) Previous issue date: 2007-02-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Avaliou-se o efeito da deficiência de PB na dieta sobre a eficiência de síntese microbiana e a degradabilidade in situ da MS e FDN em novilhos mestiços. Os tratamentos consistiram de dietas compostas de feno de tifton 85 (FN) suplementadas com uréia (FNUR), farelo de soja (FNFS) e farelo de glúten de milho- 60 (FNGL). Foram utilizados oito novilhos canulados no rúmen e no duodeno, distribuídos em dois quadrados latinos 4 x 4. O pH e a concentração de nitrogênio não-amoniacal (N-NH3) foram mensurados no fluido ruminal antes e 2, 4, 6 e 8 horas após o fornecimento da ração, utilizando-se a fibra em detergente ácido indigestível (FDAi) como indicador do fluxo duodenal. A eficiência microbiana foi determinada por meio das bases purinas. em todas as dietas, o pH e a concentração de N-NH3 foram adequados para o crescimento dos microrganismos ruminais. Não houve efeito da deficiência de PB na dieta sobre a ingestão de MS, a eficiência de síntese microbiana e a cinética de degradação da MS e FDN do feno de tifton 85. O teor de PB das dietas não alterou o crescimento microbiano, a eficiência de síntese microbiana e a cinética de degradação ruminal. Eight crossbred steers fitted with ruminal and duodenal cannulas were randomly assigned to two replicated 4 x 4 Latin squares to evaluate the effects of crude protein (CP) levels on microbial protein synthesis efficiency and in situ degradability of nutrients. Animals received a control diet containing Tifton 85 bermudagrass hay or the control diet supplemented with urea, soybean meal or corn gluten meal-60. Ruminal pH and concentration of ruminal ammonia (NH3-N) were determined in the ruminal fluid at 0 (pre-feeding), 2, 4, 6 and 8 hours after feeding. Indigestible acid detergent fiber was used as the internal marker for measuring duodenal flow of nutrients while total purines were used as the direct microbial marker to measure microbial protein synthesis and microbial efficiency. Ruminal pH and NH3-N were within expected ranges indicating a stable ruminal environment. There were no effects of different dietary CP levels on intakes of DM and N as well as on microbial efficiency and degradability kinetics of DM and NDF. It can be concluded that different CP levels had no effect on microbial protein synthesis and efficiency and kinetics of ruminal degradability. EPAMIG UNESP FCAV USP ESALQ UNESP UNESP FCAV UNESP

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:47:50Z No. of bitstreams: 1 S0100-29452007000300042.pdf: 159530 bytes, checksum: 6e0fd7b6a2a1cea1f59bd16c9a8aad4d (MD5) Made available in DSpace on 2013-08-22T18:47:50Z (GMT). No. of bitstreams: 1 S0100-29452007000300042.pdf: 159530 bytes, checksum: 6e0fd7b6a2a1cea1f59bd16c9a8aad4d (MD5) Previous issue date: 2007-01-01 Made available in DSpace on 2013-09-30T17:59:57Z (GMT). No. of bitstreams: 2 S0100-29452007000300042.pdf: 159530 bytes, checksum: 6e0fd7b6a2a1cea1f59bd16c9a8aad4d (MD5) S0100-29452007000300042.pdf.txt: 36429 bytes, checksum: 93302df1b71ddca2e9319830f8d77319 (MD5) Previous issue date: 2007-01-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:16:32Z No. of bitstreams: 2 S0100-29452007000300042.pdf: 159530 bytes, checksum: 6e0fd7b6a2a1cea1f59bd16c9a8aad4d (MD5) S0100-29452007000300042.pdf.txt: 36429 bytes, checksum: 93302df1b71ddca2e9319830f8d77319 (MD5) Made available in DSpace on 2014-05-20T13:16:32Z (GMT). No. of bitstreams: 2 S0100-29452007000300042.pdf: 159530 bytes, checksum: 6e0fd7b6a2a1cea1f59bd16c9a8aad4d (MD5) S0100-29452007000300042.pdf.txt: 36429 bytes, checksum: 93302df1b71ddca2e9319830f8d77319 (MD5) Previous issue date: 2007-01-01 Com o objetivo de avaliar o efeito de diferentes doses de Zn e B, aplicados diretamente no rizoma, via muda desbastada, sobre a nutrição das plantas e produção da bananeira 'Prata-anã', foi instalado um experimento em Jaíba - MG, sob irrigação, conduzido por três ciclos produtivos consecutivos. Utilizou-se o desbastador lurdinha para extrair a gema apical de um broto cortado rente ao solo, de forma que, no local, ficasse um orifício onde os adubos foram aplicados. Empregou-se o delineamento experimental inteiramente casualizado, com 20 tratamentos resultantes de um fatorial completo entre 5 doses de zinco (0; 2,5; 5,0; 7,5 e 10,0 g de Zn família-1 ano-1) x 4 doses de boro (0; 0,68; 1,36 e 2,04 g B família-1 ano-1), com 10 repetições de uma planta. Avaliaram-se os teores de nutrientes na terceira folha e a produção em massa de frutos por cacho. Os adubos promoveram alterações nos teores foliares de nutrientes, porém sem magnitude suficiente para alterar a condição nutricional quando se consideram as faixas de suficiência. O Zn interferiu na produção, porém os menores valores foram observados na dose intermediária e não houve ajuste de modelo de regressão. It was installed one experiment in Jaíba-MG in a 6.6 year-old banana plantation, conducted for three consecutive productive cycles, aiming to evaluate the effect of different proportions of zinc and boron applied directly in the cut off seedling, under the nutrition of the plants and in the production of 'Prata Anã' banana plant. It was used the lurdinha cut off to extract the apical vital point of a germination, which was cut near the soil, in such a way that it remained an opening where the fertilizer was applied. It was utilized the entirely casual experimental delineation, with 10 repetitions of one plant, and with 20 resultant treatments of a complete factorial between 5 proportions of Zinc (0; 2.5; 5.0; 7.5 and 10.0 g of year-1 plant-1 Zinc) x 4 proportions of boron (0; 0.68; 1.36 and 2.04 g year-1 plant-1 Boron). The fertilizers promoted some alterations in the foliar contents of nutrients, however it happened without enough magnitude to alter the nutritional condition when it is considered the bands of sufficiency. Although the Zinc interfered in the production, this was in statistics the same when compared to the evidence (zero proportion) and the biggest proportion. CTNM Epamig Unesp FCAV Departamento de Produção Vegetal Unesp FCAV Departamento de Solos e Adubos Unesp FCAV Departamento de Produção Vegetal Unesp FCAV Departamento de Solos e Adubos

Made available in DSpace on 2016-07-07T12:36:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2015. Added 1 bitstream(s) on 2016-07-07T12:45:10Z : No. of bitstreams: 1 S1516-05722015000100045.pdf: 264046 bytes, checksum: 98fa2f6b4b66ed1a1d1d1dfb4cfade52 (MD5) Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Além do valor como recurso terapêutico, plantas medicinais também possuem potencial para serem utilizadas como fonte de princípios ativos contra fitopatógenos. O objetivo deste trabalho foi avaliar o efeito de óleos essenciais das espécies medicinais Baccharis dracunculifolia (alecrim-do-campo), Schinus terebinthifolius (aroeirinha) e Porophyllum ruderale (arnica-brasileira) sobre o crescimento dos fungos fitopatogênicos Fusarium oxysporum f. sp. phaseoli (Fop), F. solani f. sp. phaseoli (Fsp), Sclerotinia sclerotiorum (Ss), S. minor (Sm), Rhizoctonia solani (Rs), Sclerotium rolfsii (Sr) e Macrophomina phaseolina (Mp). Avaliou-se em placas de Petri o crescimento radial desses fungos em meio batata-dextrose-ágar (BDA) com cinco concentrações (0, 250, 500, 1000 e 3000 mg L-1) dos óleos essenciais. Discos de micélio (5 mm de diâmetro) de cada fungo em crescimento foram transferidos para placas de Petri que foram mantidas a 23°C no escuro por 48 horas. O óleo essencial de alecrim-do-campo foi o mais eficiente na redução do crescimento micelial de todos os fungos, com inibição completa quando se utilizou a concentração de 3000 mg L-1. A redução de crescimento variou de 29% (Fs) a 80% (Rs) a 250 mg L-1 do óleo essencial de alecrim-do-campo; a 500 mg L-1, variou de 29% (Fs) a 98% (Sr); e a 1000 mg L-1, de 41% (Fs) a 100% (Sr). A redução do crescimento dos fungos pelo óleo de aroeirinha na concentração de 3000 mg L-1 variou de 27% (Fsp) a 74% (Rs). Nessa concentração, o óleo de arnica-brasileira reduziu o crecimento micelial de Ss em 72%, o de Rs em 80% e o de Mp em 82%, sem efeitos significativos sobre o crescimento micelial de Fsp e Fop. Conclui-se que os óleos essenciais de alecrim-do-campo, aroeirinha e arnica-brasileira possuem potencial para o controle dos fungos fitopatogênicos estudados, com destaque para o óleo de alecrim-do-campo. In addition to their value as therapeutic resources, medicinal plants also have the potential to be used as a source of alternative compounds against plant pathogens. The objective of this study was to evaluate the effect of essential oils extracted from the medicinal species Baccharis dracunculifolia, Schinus terebinthifolius and Porophyllum ruderale on the growth of the fungal plant pathogens Fusarium oxysporum f. sp. phaseoli (Fop), F. solani f. sp. phaseoli (Fsp), Sclerotinia sclerotiorum (Ss), S. minor (Sm), Rhizoctonia solani (Rs), Sclerotium rolfsii (Sr) and Macrophomina phaseolina (Mp). The radial mycelial growth of the fungi was evaluated on potato dextrose agar (PDA) in Petri dishes with five concentrations (0, 250, 500, 1000 and 3000 µL L-1) of the essential oils. Mycelial discs (5 mm diameter) of the growing colonies of each fungus were transferred to Petri dishes, which were maintained at 23 °C in the dark for 48 hours. The essential oil of B. dracunculifolia was the most effective oil in the reduction of the mycelial growth of all fungi. It completely inhibited their growth at 3000 mg L-1. At 250 mg L-1, the growth reduction caused by the oil of B. dracunculifolia varied from 29% (Fs) to 80% (Rs); at 500 mg L-1, it varied from 29% (Fs) to 98% (Sr); and at 1000 mg L-1, it varied from 41% (Fs) to 100% (Sr). The reduction of the mycelial growth caused by the oil of S. terebinthifolius at 3000 mg L-1 varied from 27% (Fsp) to 74% (Rs). At this concentration, the oil of P. ruderale reduced the mycelial growth of Ss by 72%, of Rs by 80% and of Mp by 82%, without significant effects on the mycelial growth of Fsp and Fop. We conclude that the essential oils of B. dracunculifolia, S. terebinthifolius and P. ruderale have the potential to be used to control the plant pathogens tested, especially the oil of B. dracunculifolia. Empresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG), Viçosa, MG, Brasil Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Faculdade de Ciências Agronômicas (FCA), Departamento de Horticultura, Botucatu, SP, Brasil Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Faculdade de Ciências Agronômicas (FCA), Departamento de Horticultura, Botucatu, SP, Brasil

Made available in DSpace on 2015-10-21T20:35:47Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-01-01. Added 1 bitstream(s) on 2015-10-22T09:47:56Z : No. of bitstreams: 1 WOS000352022600037.pdf: 966701 bytes, checksum: e2215da9e5e344b9315100e71918d04d (MD5) Fundação de Amparo à Pesquisa de Minas Gerais (FAPEMIG) Banco do Nordeste do Brasil Objetivou-se por meio deste trabalho avaliar o efeito de nitrogênio sobre a morfogênese e rendimento forrageiro do capim-elefante cv. Pioneiro. O delineamento experimental utilizado foi em blocos casualizados com cinco repetições, totalizando 20 unidades experimentais. Os tratamentos corresponderam a quatro doses de nitrogênio (100, 200, 300 e 400 kg ha-1 ano-1). O experimento foi mantido sob condições irrigadas. Foram realizados cortes avaliativos a 50 cm do solo com valores de interceptação luminosa (95%) sem intervalos pré-definidos. Observou-se que a adubação nitrogenada aumentou significativamente (P

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T19:06:25Z No. of bitstreams: 1 S1516-35982002000600002.pdf: 196885 bytes, checksum: a38c079a9d4e7bf12043ff40bdaeabb0 (MD5) Made available in DSpace on 2013-08-22T19:06:25Z (GMT). No. of bitstreams: 1 S1516-35982002000600002.pdf: 196885 bytes, checksum: a38c079a9d4e7bf12043ff40bdaeabb0 (MD5) Previous issue date: 2002-06-01 Made available in DSpace on 2013-09-30T18:02:58Z (GMT). No. of bitstreams: 2 S1516-35982002000600002.pdf: 196885 bytes, checksum: a38c079a9d4e7bf12043ff40bdaeabb0 (MD5) S1516-35982002000600002.pdf.txt: 35939 bytes, checksum: a7d743765f3ccaa32c24e93c0183e8e7 (MD5) Previous issue date: 2002-06-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:19:00Z No. of bitstreams: 2 S1516-35982002000600002.pdf: 196885 bytes, checksum: a38c079a9d4e7bf12043ff40bdaeabb0 (MD5) S1516-35982002000600002.pdf.txt: 35939 bytes, checksum: a7d743765f3ccaa32c24e93c0183e8e7 (MD5) Made available in DSpace on 2014-05-20T13:19:00Z (GMT). No. of bitstreams: 2 S1516-35982002000600002.pdf: 196885 bytes, checksum: a38c079a9d4e7bf12043ff40bdaeabb0 (MD5) S1516-35982002000600002.pdf.txt: 35939 bytes, checksum: a7d743765f3ccaa32c24e93c0183e8e7 (MD5) Previous issue date: 2002-06-01 O experimento foi conduzido na fazenda Pedrões, no município de Uberaba-MG, para avaliar a qualidade do feno de Brachiaria decumbens enfardado após a queda de sementes. Os fenos foram submetidos aos seguintes tratamentos: feno não tratado, feno tratado com amônia anidra (3,0% NH3 na MS), feno tratado com uréia (5,0% na MS). A composição química, a digestibilidade dos fenos e o desempenho de novilhos foram avaliados usando um delineamento em blocos completos casualisados com três tratamentos e seis repetições. A amonização utilizando NH3 ou uréia aumentou o conteúdo de proteína bruta e a DIVMS. O tratamento com NH3 reduziu os conteúdos de FDN e FDA, e a aplicação de uréia reduziu os conteúdos de hemicelulose e lignina. A amonização não afetou os valores de nitrogênio insolúvel em detergente neutro e nitrogênio insolúvel em detergente ácido. Novilhos recebendo feno de brachiaria e farelo de soja (1,08 kg/dia de MS), feno tratado com amônia e milho grão (1,14 kg/dia de MS) e feno tratado com uréia e milho grão (1,14 kg/dia de MS) apresentaram consumo de MS de 1,97; 2,23 e 1,90% do peso vivo e ganhos de peso de 0,60; 0,53 e 0,37 kg/dia, e conversão alimentar 10,8; 12,8 e 16,9 kg MS/kg de ganho de peso, respectivamente. The experiment was conducted at farm Pedrões of the F.C. Agropecuária, located in Uberaba-MG to evaluate the quality of Brachiaria decumbens hays harvested after seed ripening. The hays were submitted to the following treatments: control, anhydrous ammonia (3.0% NH3 in the DM), and urea (5.0% in the DM). The chemical composition, digestibility hays and the performance of steers were evaluated using a complete randomized block design with three treatments and six replications. The ammoniation either with NH3 or urea increased the CP content and the IVDMD. The NH3 treatment reduced the contents of NDF and ADF, and the urea application reduced the contents of hemicellulose and lignin. The ammoniation did not affect the neutral detergent insoluble nitrogen, and acid detergent insoluble nitrogen values. Steers receiving Brachiaria hay plus soybean meal (1.08 kg/day of DM), hay treated with NH3 plus corn meal (1.14 kg/day of DM) and hay treated with urea plus corn meal (1.14 kg/day of DM) showed DM intake of 1.97; 2,23 and 1.90% BW; weight gains of 0.60; 0.53 and 0.37 kg/day, and feed conversion of 10.8; 12.8 and 16.9 of kg DM/kg WG, respectively. UNESP FCAV EPAMIG FAZU UNESP FCAV Departamento de Zootecnia Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)/EPAMIG UNESP FCAV UNESP FCAV Departamento de Zootecnia

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T19:06:23Z No. of bitstreams: 1 S1516-35982002000400013.pdf: 1077952 bytes, checksum: 8a664689615fd6da482a7aa0fc8572ec (MD5) Made available in DSpace on 2013-08-22T19:06:23Z (GMT). No. of bitstreams: 1 S1516-35982002000400013.pdf: 1077952 bytes, checksum: 8a664689615fd6da482a7aa0fc8572ec (MD5) Previous issue date: 2002-04-01 Made available in DSpace on 2013-09-30T20:10:40Z (GMT). No. of bitstreams: 2 S1516-35982002000400013.pdf: 1077952 bytes, checksum: 8a664689615fd6da482a7aa0fc8572ec (MD5) S1516-35982002000400013.pdf.txt: 34715 bytes, checksum: c74982a31ce4e4f928e35f328998acac (MD5) Previous issue date: 2002-04-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:18:08Z No. of bitstreams: 2 S1516-35982002000400013.pdf: 1077952 bytes, checksum: 8a664689615fd6da482a7aa0fc8572ec (MD5) S1516-35982002000400013.pdf.txt: 34715 bytes, checksum: c74982a31ce4e4f928e35f328998acac (MD5) Made available in DSpace on 2014-05-20T13:18:08Z (GMT). No. of bitstreams: 2 S1516-35982002000400013.pdf: 1077952 bytes, checksum: 8a664689615fd6da482a7aa0fc8572ec (MD5) S1516-35982002000400013.pdf.txt: 34715 bytes, checksum: c74982a31ce4e4f928e35f328998acac (MD5) Previous issue date: 2002-04-01 O experimento foi realizado com o objetivo de avaliar o efeito da idade sobre o potencial de degradação dos diferentes tecidos da lâmina foliar e do colmo de capim-braquiária (Brachiaria decumbens), capim-gordura (Melinis minutiflora) e capim-tifton 85 (Cynodon sp). Foram amostradas a 7ª (capim-braquiária e capim-gordura) e a 11ª (capim-tifton 85) lâminas foliares, no dia da exposição da lígula e 20 dias após. Por meio de observações ao microscópio foram estimadas a extensão da digestão in vitro dos tecidos da lâmina e do colmo e a redução na espessura da parede de células do esclerênquima do colmo. Lâminas foliares e segmentos de colmos jovens apresentaram maiores áreas digeridas. Permaneceram intactos os tecidos com células de parede espessada e lignificada, a bainha parenquimática dos feixes, o esclerênquima, o xilema e a epiderme do colmo. Tecidos com células de parede delgada, normalmente não-lignificada, o mesofilo, o floema e o parênquima, desapareceram completamente. O avanço na idade reduziu a digestão do mesofilo, em lâminas de capim-braquiária e capim-gordura, e do parênquima em colmos, principalmente de capim-gordura. A epiderme na lâmina foliar foi parcialmente digerida, independentemente da idade e da espécie. Embora aparentemente intactas, células esclerenquimáticas do colmo sofreram redução da espessura da parede com a incubação em líquido ruminal. A porcentagem de redução variou de 7 a 37% e a taxa de redução da espessura de 0,007 a 0,018 µm/h. A trial was carried out to evaluate the change in digestion of tropical grasses leaf and stem tissues with age. The grasses were signalgrass (Brachiaria decumbens), molassesgrass (Melinis minutiflora) and Tifton 85 bermudagrass (Cynodon sp). The 7th leaf of signalgrass and molassesgrass and the 11th leaf of bermudagrass were sampled by the time of their complete expansion (ligule exposure) and 20 days later. Segment of stem just below the sampled leaf was also sampled. Transversal sections of leaf and stem were examined at the microscope before and after rumen in vitro incubation. The degree of digestion of different leaf and stem tissues, as well as the cell wall thickness of stem sclerenchyma were estimated. Leaf blade and young stems showed larger digested areas. Stem tissues with thick and lignified cell wall, the parenchyma bundle sheath, the sclerenchyma, the xylem and the epidermis were not digested. Tissues with thin non-lignified cell wall, the mesophyll, the phloem and the parenchyma were completely digested. Molassesgrass and signalgrass leaves sampled 20 days after expansion had lower mesophyll digestion in relation to their recently expanded leaves. Similarly, molassesgrass stem parenchyma digestion decreased as plant aged. Regardless of age, leaf epidermis was only partially digested. Stem sclerenchyma cell wall showed percentage reduction in thickness from 7 to 37%, after in vitro incubation. The rate of reduction in thickness varied from 0.007 to 0.018 µm/h. Empresa Brasileira de Pesquisa Agropecuária Gado de Leite Departamento de Zootecnia, Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil Departamento de Biologia Vegetal, Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil Empresa de Pesquisa Agropecuária de Minas Gerais Departamento de Zootecnia, Faculdade de Ciências Agrárias e Veterinárias (FCAV), Universidade Estadual Paulista (UNESP), Jaboticabal, SP, Brasil Departamento de Zootecnia, Faculdade de Ciências Agrárias e Veterinárias (FCAV), Universidade Estadual Paulista (UNESP), Jaboticabal, SP, Brasil

Made available in DSpace on 2015-02-02T12:39:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-09-01Bitstream added on 2015-02-02T13:08:15Z : No. of bitstreams: 1 S0100-29452014000300025.pdf: 1172433 bytes, checksum: 50165e9d6043f862ec7060abfdce2514 (MD5) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) O conhecimento sobre a dinâmica dos nutrientes provenientes da aplicação de resíduos orgânicos faz-se necessário, principalmente visando sua a reciclagem, considerando que a quantidade desses materiais tem aumentado rapidamente com o tempo. Assim, objetivou-se avaliar o estado nutricional e a produção de frutos de um pomar de goiabeiras, em função da aplicação do subproduto da indústria processadora de goiabas. O delineamento empregado foi o de blocos casualizados, com cinco tratamentos e quatro repetições, sendo as doses do subproduto (moído) iguais a zero; 9;18; 27 e 36 t ha-1 (peso do material seco). Foram feitas cinco aplicações do subproduto em 2006, 2007, 2008, 2009 e 2010. Avaliou-se o estado nutricional das goiabeiras, via diagnose foliar (macro e micronutrientes), bem como a produção de frutos por seis safras consecutivas. A aplicação do subproduto da indústria processadora de goiabas promoveu alterações no estado nutricional e na produção de frutos. As doses do subproduto incrementaram os teores foliares de N, Mg e Mn da goiabeira. A produção de goiabas cresceu de forma linear em função das doses do subproduto. Os efeitos da aplicação do subproduto foram verificados primeiramente no solo, posteriormente nos teores foliares e, finalmente, na produção de frutos, ao longo das safras. The knowledge about the dynamics of nutrients from the application of organic waste is needed, especially in order to recycle, since the quantity of these materials has increased rapidly over time. Thus, this study aimed to assess the nutritional status and yield of guava, depending on application of by-product from the guava processing industry. The experimental was a randomized block design with five treatments and four replications, the doses of by-product were equal zero, 9, 18, 27 and 36 t ha-1 (dry weight of the material). There were five applications of waste in 2006, 2007, 2008, 2009 and 2010. It was evaluated the nutritional status of guava (macronutrients and micronutrients), as well as fruit production for six consecutive years. The application of by-product in guavas processing industry promoted changes in the nutritional status and fruit production. Doses of by-product increased foliar content of N, Mg and Mn. Fruit yield increased linearly as a function of residue doses. The effects of the by-product were observed primarily in the soil, then in the leaf contents and finally in the production of fruits along the seasons. Embrapa/CNPC Unesp Epamig Unesp

Made available in DSpace on 2021-07-14T10:25:05Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-07. Added 1 bitstream(s) on 2021-07-14T11:29:42Z : No. of bitstreams: 1 S0103-84782014000701149.pdf: 41655 bytes, checksum: 0bb53d0e14ed41a0a9243040b20a5344 (MD5) Óleos essenciais foram testados com o objetivo de controlar Aphelenchoides besseyi em sementes de Brachiaria brizantha cv. 'Marandu'. Sementes naturalmente infestadas por A. besseyi foram tratadas com óleos essenciais de mostarda (Brassica nigra), canela (Cinnamomum zeylanicum), verbena (Lippia citriodora) e Bioprotector(r)(produto comercial composto por extratos e óleos essenciais derivados deplantas), nas concentrações de 0,5% e 1,0%. Avaliou-se também o efeito dostratamentos após aplicação direta nos juvenis (ensaio in vitro).Todos os óleos tiveram sua efetividade reduzida no ensaio em semente (invivo) em relação ao ensaio in vitro. Os tratamentos nãoerradicaram o nematoide das sementes, sendo que os óleos essenciais de canela everbena, nas concentrações 0,5% e 1,0%, Bioprotector (r)a 1,0% e óleo de mostarda a 1,0% reduziram o nível populacional do nematoideem sementes contaminadas. O óleo de mostarda a 1,0% destacou-se dos demais por terapresentado ação nematicida sem alterar a germinação das sementes. Essencial oils were tested to control Aphelenchoides besseyi in Brachiaria brizantha cv. 'Marandu' seeds. Seeds naturally infested with A. besseyi were treated with essential oils of mustard (Brassica nigra), cinnamon (Cinnamomum zeylanicum), verbena (Lippia citriodora) and Bioprotector (r)(a commercial product based on formulation of plant extracts and essentialoils), in concentrations of 0.5% and 1.0%. The effects of the same treatmentsafter direct application on juveniles nematodes were evaluated invitro. All treatments were less effective to control the nematode in theseeds (in vivo) comparing to the in vitro test.The treatments did not eradicate the nematode from the seeds. However, theessential oils of cinnamon and verbena (in both concentrations), mustard (1.0%),as well as Bioprotector (r)(1.0%), reduced the seed population of A. besseyi. Mustard oil (1.0%) stoodout for its nematicide action with no effect on seed germination. Universidade Federal de Viçosa Universidade Estadual Norte Fluminense Darcy Ribeiro (UENF) Empresa de Pesquisa Agropecuária de Minas Gerais (Epamig) Universidade Estadual de Montes Claros (Unimontes)

Os lepidópteros estão entre os grupos de insetos com maior diversidade e os mais variados tipos de serviços ecológicos. A distribuição, a abundância e a variação no tempo e espaço dos organismos são importantes. A ocorrência de pragas e espécies com potencial para causarem danos tem sido estudada em programas de monitoramento em plantós florestais. O objetivo deste trabalho foi estudar o padrão da diversidade alfa e beta e o efeito da mata nativa sobre esses ńdices pelo monitoramento de lepidópteros em plantós de eucalipto na região amazónica do Brasil. Os levantamentos foram realizados com armadilhas luminosas em Caracuru, Ponte Maria e Pacanari no município de Almerim, Estado do Pará, Brasil e em Felipe no município de Laranjal do Jari, Estado do Amapá, Brasil. Os lepidópteros coletados foram divididos em pragas primárias (grupo I), pragas secundárias (grupo II) e espécies sem importância definida para o eucalipto (grupo III). A diversidade alfa foi calculada com o procedimento Jacknife de primeira ordem e a beta com o ńdice de Jaccard estimando-se a dissimilaridade média por ponto de coleta. Os ńdices de frequência e constância e o efeito da distância entre a mata nativa e o plantio sobre a fauna de Lepidoptera foram determinados e comparados. A riqueza foi de 10 ou 11 espécies do grupo I, nove ou 10 do II e 378 a 409 espécies do III, sem diferença por grupo entre as áreas. As curvas de acúmulo das pragas primárias se estabilizaram entre as 15a e 35a amostragens e as das secundárias entre a 20a e a 70a amostragem, com variaçães entre os locais. A estimativa da riqueza das espécies sem importância definida para a eucaliptocultura foi de 50 e 100 espécies com inclinação acentuada da curva até, aproximadamente, a 60 amostragem e crescimento lento com tendência de estabilização nos quatro locais a partir desta data. As espécies pragas primárias foram as mesmas em todos os locais e, por isso, sua diversidade beta foi nula. A dissimilaridade das pragas secundárias foi semelhante entre os locais, exceto em Felipe. O grupo III apresentou menor dissimilaridade entre Caracuru e Ponte Maria (14,88%) e maior entre Felipe e Pacanari (21,64%). O menor número de individuos do grupo I em Felipe e Ponte Maria e a menor riqueza de espécies do III em Felipe estão, possivelmente, relacionados à maior proximidade dos plantós de eucalipto com a mata nativa. O conhecimento da dinâmica populacional e da riqueza de espécies de lepidópteros desfolhadores são importantes para o manejo de pragas. Esses ńdices permitem melhorar a detecção de espécies com histórico de danos e a tomada de decisão com medidas preventivas mais apropriadas para cada situação. The Lepidoptera are among the insect groups with the greatest species diversity and ecological services. The distribution, abundance and variation in time and space of species in natural communities are important. The occurrence of pests (primary pest species) and those species with potential to cause damage (secondary pest species), plus other species, are studied in monitoring programs in forest plantations as groups I, II and III, respectively. The objective of this work was to study alpha and beta diversity patterns, and the effect of native forest in these indexes by monitoring Lepidoptera in eucalyptus plantations in the Amazonian region of Brazil. Surveys were conducted with light traps at 4 sites in this region. Alpha diversity was calculated with the Jackknife first-order procedure and beta diversity with the Jaccard index in order to estimate the dissimilarity per point and the effect of the distance between the native forest and the plantations on the Lepidoptera fauna. The richness showed 10 or 11 species of group I; 9 or 10 species of II and 378 to 409 species of III, without differences per group between regions. The curves of accumulated number of primary pest species stabilized between the 15th and 35th samplings and those for secondary pest species stabilized in the range from 20th to 70th samplings, with variations among sites. The estimation of richness for species of group III ranged from 50 to 100 species with a steep slope of the curve until approximately the 60th sampling with a slow increase and a tendency of stabilization in the 4 areas after this date. The primary pest species were the same in all areas and therefore their beta diversity was zero. The dissimilarity of secondary pests was similar between areas except for Felipe. Group III showed lower dissimilarity between Caracuru and Ponte Maria (14.88%) and highest values between Felipe and Pacanari (21.64%). The lower number of individuals of group I in Felipe and Ponte Maria and lower species richness of group III in Felipe can be explained by the proximity of eucalyptus plantations to the native forest. The knowledge of population dynamics and species richness of Lepidoptera defoliators is important for pest management. These indexes allow a better detection of species with a history of damage and decision making with the most appropriate preventive measures for each situation.

Made available in DSpace on 2014-12-03T13:09:11Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-01-01Bitstream added on 2014-12-03T13:23:15Z : No. of bitstreams: 1 WOS000335820700001.pdf: 1955259 bytes, checksum: 15c35273ae10627d53d99011320402e0 (MD5) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) Forestry companies study the population dynamics of insect pests in Integrated Pest Management for cost effectiveness. The objective of this study was to obtain qualitative and quantitative information on population fluctuation of the Lepidopteran defoliators of Eucalyptus urophylla plants in the Brazilian Amazon rainforest. In all, 402 species were collected, of which 10 were primary pests, nine were secondary pests, and the remaining bore no definite relevance to eucalyptus. Primary pests formed a low percentage of the total species, although they recorded a high percentage of the total number of individuals. The abundance of secondary pests, except in Caracuru, was less than 150 specimens annually. Primary pests showed higher population peaks during periods of low precipitation. The small number of species and the high abundance of primary and secondary pests could be due to the availability of food, or a deficiency in natural biological control. This suggests the possibilities of population outbreaks in the eucalyptus plantations. The period of highest occurrence for insect species in these crops must be identified so that suitable strategies can be developed for Integrated Pest Management. Univ Fed Vicosa, Dept Entomol, BR-36570900 Vicosa, MG, Brazil Empresa Pesquisa Agr Minas Gerais, Ctr Tecnol Zona Mata, BR-36570000 Vicosa, MG, Brazil Univ Fed Vales Jequitinhonha & Mucuri, Dept Agron, BR-39100000 Diamantina, MG, Brazil Univ Estadual Paulista, Dept Prod Vegetal, BR-18603970 Sao Paulo, Brazil Univ Fed Vicosa, Dept Biol Geral, BR-36570900 Vicosa, MG, Brazil Univ Estadual Paulista, Dept Prod Vegetal, BR-18603970 Sao Paulo, Brazil

Made available in DSpace on 2015-02-02T12:39:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-09-01Bitstream added on 2015-02-02T13:08:15Z : No. of bitstreams: 1 S0100-29452014000300024.pdf: 850672 bytes, checksum: 031229919402ba59a05ca70c5ab6037a (MD5) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) A utilização de fontes alternativas de nutrientes, provenientes especialmente de resíduos e subprodutos da agroindústria, pode ser estratégia importante na ciclagem de elementos essenciais, garantindo destino adequado de materiais que seriam descartados. Assim, objetivou-se avaliar a aplicação de doses do subproduto da indústria processadora de goiabas sobre a fertilidade de um Argissolo, sob pomar de goiabeiras. As doses de resíduo foram estabelecidas em função dos teores de N no material. O delineamento empregado foi o de blocos casualizados, com cinco tratamentos e quatro repetições, sendo as doses do resíduo (moído) iguais a: zero; 9; 18; 27 e 36 t ha-1 (peso do material seco). Foram feitas cinco aplicações do subproduto em: 2006, 2007, 2008, 2009 e 2010. O subproduto da indústria processadora de goiabas promoveu alterações na fertilidade do solo do pomar. Com o aumento das doses, houve incremento das concentrações de fósforo no solo em todas as análises realizadas. As concentrações de manganês aumentaram, e houve redução do valor pH do solo nos últimos anos de condução do experimento. Observou-se, na camada subsuperfical (0,20-0,40 m), após a aplicação contínua do subproduto, aumento na concentração de fósforo em função das doses do subproduto. The use of alternative sources of nutrients coming especially from waste and industrial by-products can be an important strategy in nutrient cycling, ensuring proper destination of materials that would otherwise be discarded. The objective was to evaluate the application of doses of by-product of guava processing industry on fertility of an Ultisol in a guava orchard. Doses of waste were established on the basis of N content in the material. The experimental design was a randomized block design with five treatments and four replications, the doses of the residue equal to zero, 9, 18, 27 and 36 t ha-1 (dry weight of the material). There were five applications residue: in 2006, 2007, 2008, 2009 and 2010. The by-product of the guava processing industry promoted changes in soil fertility in the orchard. With increasing doses increased the concentrations of phosphorus in the soil in all analyzes. The manganese concentrations increased and decreased the soil pH value in the last years of the experiment. It was observed in the subsuperfical layer (0.20-0.40 m) after continuous application of by-product an increase in phosphorus concentration as a function of the doses of the by-product. Embrapa/CNPC Unesp Epamig Unesp

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T19:02:24Z No. of bitstreams: 1 S0301-80592000000100012.pdf: 256732 bytes, checksum: be10bc02a94b819ecbad6ddfdfc63d62 (MD5) Made available in DSpace on 2013-08-22T19:02:24Z (GMT). No. of bitstreams: 1 S0301-80592000000100012.pdf: 256732 bytes, checksum: be10bc02a94b819ecbad6ddfdfc63d62 (MD5) Previous issue date: 2000-03-01 Made available in DSpace on 2013-09-30T20:03:21Z (GMT). No. of bitstreams: 2 S0301-80592000000100012.pdf: 256732 bytes, checksum: be10bc02a94b819ecbad6ddfdfc63d62 (MD5) S0301-80592000000100012.pdf.txt: 26207 bytes, checksum: 24ae63e53bd05f20e6ecba2136a039a7 (MD5) Previous issue date: 2000-03-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:16:13Z No. of bitstreams: 2 S0301-80592000000100012.pdf: 256732 bytes, checksum: be10bc02a94b819ecbad6ddfdfc63d62 (MD5) S0301-80592000000100012.pdf.txt: 26207 bytes, checksum: 24ae63e53bd05f20e6ecba2136a039a7 (MD5) Made available in DSpace on 2014-05-20T15:16:13Z (GMT). No. of bitstreams: 2 S0301-80592000000100012.pdf: 256732 bytes, checksum: be10bc02a94b819ecbad6ddfdfc63d62 (MD5) S0301-80592000000100012.pdf.txt: 26207 bytes, checksum: 24ae63e53bd05f20e6ecba2136a039a7 (MD5) Previous issue date: 2000-03-01 A ocorrência das espécies de ácaros predadores pertencentes à família Phytoseiidae, em folhas de laranjeira `Valência' (Citrus sinensis Osbeck), foi avaliada durante três anos em Lavras (MG), através de levantamentos quinzenais. Iphiseiodes zuluagai Denmark & Muma e Euseius alatus DeLeon foram as espécies mais freqüentes, a primeira representando 66,2% dos ácaros coletados e a segunda 29,8%. Ambos os ácaros foram encontrados ao longo de todos os anos, sendo que I. zuluagai apresentou maior ocorrência entre abril e setembro (outono e inverno), período de temperaturas amenas e baixa precipitação pluvial. A espécie E. alatus, ao contrário, apresentou maior ocorrência entre outubro e fevereiro, que correspondeu a um período de temperaturas elevadas e alta precipitação pluvial. Outras espécies levantadas e respectivas porcentagens de ocorrência foram: Amblyseius compositus Denmark & Muma (2,6 %), Amblyseius herbicolus (Chant) (1,1 %) e Phytoseiulus macropilis (Banks) (0,3 %), sendo A. compositus a mais freqüente e as demais ocasionais. A survey of the species of predaceous mites belonging to the Phytoseiidae family was run every other week for a three-year period on 'Valencia' orange tree leaves (Citrus sinensis Osbeck) in Lavras, Minas Gerais State, Brazil. Iphiseiodes zuluagai Denmark & Muma and Euseius alatus DeLeon were the most frequent, the first one representing 66.2% and the second 29.8% of the collected mites. Both were found during the whole period, and I. zuluagai occurred mostly between April and September (autumn and winter), period of mild temperatures and low rainfalls. The species E. alatus, presented higher occurrence between October and February that corresponded to the higher temperatures and pluvial precipitation period. Other surveyed species and percentages of occurrence were: Amblyseius compositus Denmark & Muma (2,6%), Amblyseius herbicolus (Chant) (1,1%) and Phytoseiulus macropilis (Banks) (0,3%), being A. compositus the most frequent; the other species were occasional. EPAMIG CTSM UNESP FCA Universidade Federal de Lavras (UFLA) UNESP FCA

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:55:27Z No. of bitstreams: 0 Made available in DSpace on 2013-08-22T18:55:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2000-02-01 Made available in DSpace on 2013-09-30T19:48:17Z (GMT). No. of bitstreams: 0 Previous issue date: 2000-02-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:18:29Z No. of bitstreams: 0 Made available in DSpace on 2014-05-20T13:18:29Z (GMT). No. of bitstreams: 0 Previous issue date: 2000-02-01 O perímetro escrotal (PE) de 202 touros jovens da raça Nelore, sem experiência sexual prévia, classificados pela Associação Brasileira de Criadores de Zebu como superiores ou elite, foi medido aos 7, 12, 18 e 28 meses de idade, aproximadamente. Após a última medição, eles foram submetidos ao teste de libido e procedeu-se à colheita de sêmen por eletroejaculação, seguida de avaliação andrológica. As medidas do PE aos 7, 12, 18 e 28 meses foram de 18,30; 22,29; 27,54 e 33,26cm, respectivamente. Os coeficientes de correlação simples entre estas medidas variaram de 0,35 a 0,53. O coeficiente de correlação entre PE aos 28 meses e peso corporal na mesma idade foi de 0,43. A correlação entre a nota da libido e o perímetro escrotal medido aos l8 meses foi de 0,15 e entre aquela e o perímetro escrotal aos 28 meses foi de 0,13. Observou-se elevado crescimento do perímetro escrotal entre o 7º e 18º meses de idade. Utilizou-se o método de quadrados mínimos para analisar a libido, incluindo ano de nascimento como efeito fixo e como covariáveis os efeitos lineares da idade e peso no momento da avaliação e medidas de perímetro escrotal aos 7, l2, l8 e 28 meses. Cada covariável foi retida de forma seqüencial obtendo-se vários modelos de análises e as somas de quadrados foram decompostas de forma seqüencial e parcial. O ano de nascimento, a idade e o perímetro escrotal aos 18 meses de idade afetaram significativamente a libido. Os coeficientes de correlação entre a libido e concentração espermática, motilidade, peso e idade do animal no momento da avaliação foram de 0,34, 0,l6, 0,38 e 0,35, respectivamente. The scrotal circumference (SC) of 202 young Nelore bulls with no previous sexual experience, classified by Associação Brasileira de Criadores de Zebu as superiors and elite, was measured at 7, 12, 18 and 28 months of age. Immediately after the last measurement (28 months) they were submitted to libido tests receiving a score according to their libido (LS). At the same time their semen was collected by electroejaculation and analyzed. The SC means at the age of 7, 12, 18 and 28 months were 18.30, 22.29, 27.54 and 33.26cm, respectively. SC measured at different ages were correlated (correlation coefficients varying from 0.35 to 0.53). Also, 28 months SC was correlated to weight at the same age (r=0.43). LS were positively correlated to SC at yearling (0.15) and to SC at the time of the libido evaluation (0.13). LS were analyzed by least square method, including in the model the year of birth as main effect and linear effects of age, weight and SC measures. The effects were sequentially excluded from de model, so those six models were used. Year of birth, age and SC at 18 months of age significantly influence LS. Correlation coefficient between weight and LS was 0.38 and between age and LS was 0.35. LS were also correlated to some semen characteristics such as concentration and motility, with correlation coefficients of 0.34 and 0.16, respectively. Fazenda Paredão Empresa Pesquisa Agropecuária Minas Gerais Universidade Estadual Paulista FCAV Universidade Estadual Paulista FCAV

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:55:27Z No. of bitstreams: 0 Made available in DSpace on 2013-08-22T18:55:27Z (GMT). No. of bitstreams: 0 Previous issue date: 1999-08-01 Made available in DSpace on 2013-09-30T19:48:15Z (GMT). No. of bitstreams: 0 Previous issue date: 1999-08-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:12:48Z No. of bitstreams: 0 Made available in DSpace on 2014-05-20T15:12:48Z (GMT). No. of bitstreams: 0 Previous issue date: 1999-08-01 Durante três anos, vacas Gir leiteiro da Fazenda Experimental da EPAMIG, em Uberaba-MG, foram examinadas, pela palpação retal, para verificação da involução uterina. em 111 parições de 104 vacas, a involução dos cornos uterinos teve duração média de 29,7± 9,6 dias e, na maioria das vezes, a involução da porção cervical demorou mais do que 43 dias. O tempo de involução foi mais longo em vacas com maior número de partos. Na primeira semana, o útero permaneceu na cavidade abdominal (95,0%), na segunda teve início o retorno do órgão à pelve (8,2%), na terceira aconteceram os primeiros casos de involução completa dos cornos uterinos (20,6%) e na sexta semana, a maior parte das vacas apresentavam involução completa (82,9%). Foram constatados seis casos de permanência do útero em involução na cavidade abdominal e oito casos de localização pélvico/abdominal na quinta semana após o parto, detectados somente em vacas pluríparas. Observaram-se 19 casos de retrocesso na seqüência natural das fases de involução. O retrocesso do útero para a cavidade abdominal só ocorreu em vacas com problemas sanitários. em sete vacas com metrite, verificou-se prolongamento do tempo médio de involução dos cornos uterinos e aumento do diâmetro cervical em relação às demais vacas do rebanho. Uterine involution of 111 calvings of 104 dairy Gir cows, checked by rectal palpation, was studied. Uterine involution averaged 29.7± 9.6 days, and cervical involution delayed more than 43 days. In both cases, time of involution increased with parity. In the first postpartum week uterus remained in abdominal cavity (95.0%) and in the second week uterus initiated its return to the pelvic cavity (8.2%). In the third week 20.6% had completed uterine involution. The total involution was identified in 82.9% of the cows, in the sixth week. Some cases of involuting uterus still remained in abdominal (n=6) or abdominal/pelvic (n=8) cavity, after the fifth postpartum week, observed only in multiparous cows. In 19 cows was detected retrocession of natural sequence of uterine involution phases. Uterus retrocession to abdominal cavity was observed only in cows with sanitary problems. In seven cows with metritis, uterine time of involution was longer and enlargement of cervix was also observed. EPAMIG Fazenda Experimental Getúlio Vargas UNESP Faculdade de Ciências Agrárias e Veterinárias UNESP Faculdade de Ciências Agrárias e Veterinárias

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T19:02:21Z No. of bitstreams: 1 S0301-80591998000200003.pdf: 40816 bytes, checksum: 39ef1da096dfe7de7a7c0ba894059450 (MD5) Made available in DSpace on 2013-08-22T19:02:21Z (GMT). No. of bitstreams: 1 S0301-80591998000200003.pdf: 40816 bytes, checksum: 39ef1da096dfe7de7a7c0ba894059450 (MD5) Previous issue date: 1998-06-01 Made available in DSpace on 2013-09-30T20:03:15Z (GMT). No. of bitstreams: 2 S0301-80591998000200003.pdf: 40816 bytes, checksum: 39ef1da096dfe7de7a7c0ba894059450 (MD5) S0301-80591998000200003.pdf.txt: 22145 bytes, checksum: c38cae95ca1449a9659c75450601d1b0 (MD5) Previous issue date: 1998-06-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:16:12Z No. of bitstreams: 2 S0301-80591998000200003.pdf: 40816 bytes, checksum: 39ef1da096dfe7de7a7c0ba894059450 (MD5) S0301-80591998000200003.pdf.txt: 22145 bytes, checksum: c38cae95ca1449a9659c75450601d1b0 (MD5) Made available in DSpace on 2014-05-20T15:16:12Z (GMT). No. of bitstreams: 2 S0301-80591998000200003.pdf: 40816 bytes, checksum: 39ef1da096dfe7de7a7c0ba894059450 (MD5) S0301-80591998000200003.pdf.txt: 22145 bytes, checksum: c38cae95ca1449a9659c75450601d1b0 (MD5) Previous issue date: 1998-06-01 Iphiseiodes zuluagai Denmark & Muma (Acari: Phytoseiidae) é um ácaro predador comumente encontrado em plantas cítricas (Citrus spp.). Alimentado com pólen de mamoneira (Ricinus communis ) e a 25 ± 2°C, 70 ± 10% de UR e 14 horas de fotofase, a maioria das larvas eclodiu entre 12 e 24 horas. A duração do estágio de larva foi freqüentemente em torno de 24 horas, e a duração das fases de protoninfa e deutoninfa entre 24 e 48 horas. O ciclo de ovo a adulto durou 5 a 6 dias. A estimativa da capacidade inata de crescimento da população (r m) foi 0,122 fêmeas/ fêmea/ dia; a duração média de uma geração (T) 18,7 dias; a taxa líquida de reprodução (Ro) 9,82 fêmeas/ fêmea e a razão finita de aumento (1)1,13. Iphiseiodes zuluagai Denmark & Muma (Acari: Phytoseiidae) is a predaceous mite commonly found on citrus plants (Citrus spp.) in Brazil. With castor bean (Ricinus communis) pollen as food and 25 ± 2 °C, 70 ± 10% RH and 14 hours of photophase, most of the eggs hatched after ca.12 to 24 hours. The larval and protonymph stage duration was ca. 24 hours each, and ca. 48 hours for deutonymph. The life cycle from egg to adult lasted 5-6 days. The intrinsic rate of increase (r m) was 0.122 females/ female/ day, the mean generation time (T) 18.7 days, the net reproductive rate (Ro) 9.82 females/ female and, the finite rate of increase (1) 1.13. CRSM IEPAMIG UNESP FCA Universidade Federal de Lavras (UFLA) UNESP FCA

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:48:18Z No. of bitstreams: 1 S0100-29452013000100033.pdf: 2504655 bytes, checksum: c76c64c0438b459f6bec3075b3fdf855 (MD5) Made available in DSpace on 2013-08-22T18:48:18Z (GMT). No. of bitstreams: 1 S0100-29452013000100033.pdf: 2504655 bytes, checksum: c76c64c0438b459f6bec3075b3fdf855 (MD5) Previous issue date: 2013-03-01 Made available in DSpace on 2013-09-30T19:38:08Z (GMT). No. of bitstreams: 2 S0100-29452013000100033.pdf: 2504655 bytes, checksum: c76c64c0438b459f6bec3075b3fdf855 (MD5) S0100-29452013000100033.pdf.txt: 36832 bytes, checksum: 72f373933ff7fc031c41b2f3857aa426 (MD5) Previous issue date: 2013-03-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:10:14Z No. of bitstreams: 2 S0100-29452013000100033.pdf: 2504655 bytes, checksum: c76c64c0438b459f6bec3075b3fdf855 (MD5) S0100-29452013000100033.pdf.txt: 36832 bytes, checksum: 72f373933ff7fc031c41b2f3857aa426 (MD5) Made available in DSpace on 2014-05-20T15:10:14Z (GMT). No. of bitstreams: 2 S0100-29452013000100033.pdf: 2504655 bytes, checksum: c76c64c0438b459f6bec3075b3fdf855 (MD5) S0100-29452013000100033.pdf.txt: 36832 bytes, checksum: 72f373933ff7fc031c41b2f3857aa426 (MD5) Previous issue date: 2013-03-01 O diagnóstico nutricional a partir da análise do tecido foliar é um instrumento eficiente para detectar desequilíbrios e auxiliar no processo de recomendação de adubação. Assim, objetivou-se avaliar a relação entre os índices DRIS e os teores foliares de nutrientes, estabelecer teores foliares adequados de nutrientes com o DRIS e validar normas DRIS para a goiabeira 'Paluma'. Avaliou-se um pomar comercial nas condições de cultivo do Estado de São Paulo, durante seis safras de produção de frutos, provenientes de ensaios de adubação orgânica e mineral, totalizando 168 amostras. A ordem dos nutrientes limitantes por falta em ordem decrescente foram: Fe>K>Mn>Ca>B>N>P>Cu>S>Mg>Zn, e limitantes por excesso em ordem decrescente foram: Cu>Fe>P>Mn=Mg>Zn>Ca>B>K>S>N. As faixas adequadas, provenientes dos índices DRIS, são: 18-21; 1,5-1,7; 15-17; 8-11; 1,8-2,5 e 2,5-2,9 (g kg-1) para os macronutrientes N, P, K, Ca, Mg e S, respectivamente, e 26-38; 5-57; 54-112; 53-101 e 13-126 (mg kg-1) para os micronutrientes B, Cu, Fe, Mn e Zn, respectivamente. A produtividade das goiabeiras esteve associada ao estado nutricional. The nutritional diagnosis based on the analysis of leaf tissue is an efficient tool for detecting imbalances and help the process of fertilization recommendation. Thus, it was evaluated to establish preliminary DRIS norms, and to derive critical levels and sufficiency ranges of nutrients in the leaf tissue to Paluma guava cultivar in commercial orchards growing conditions in the State of São Paulo. It was evaluated six harvests of fruit production, from organic and mineral fertilizer, totaling 168 samples. The order of limiting nutrients for failure in descending order were: Fe> K> Mn> Ca> B> N> P> Cu> S> Mg> Zn, and limiting excess in descending order were: Cu> Fe> P> Mn = Mg> Zn> Ca> B> K> S> N. The tracks from the appropriate DRIS indices are: 18-21, 1.5 to 1.7, 15-17, 8-11, 1.8 to 2.5 and 2.5 to 2.9 (g kg-1) for the macronutrients N, P, K, Ca, Mg and S, respectively, and 26-38, 5-57, 54-112, 53-101 and 13-126 (mg kg-1) for the micronutrients B, Cu, Fe, Mn and Zn, respectively. The yield of guava was related to nutritional status. CNPC Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Unesp Epamig Unesp

Made available in DSpace on 2014-12-03T13:11:31Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-01-01Bitstream added on 2014-12-03T13:23:30Z : No. of bitstreams: 1 WOS000328276600008.pdf: 373612 bytes, checksum: e931e8f4249f7a9362972fdd65554fa4 (MD5) The canola (Brassica napus, L.) cultivation was encouraged for grain and oil production at the 80's, and it is also considered a good option for crop rotation. The nitrogen is one of the most required nutrients by the plant to increase its production, while sulfur is essential to provide seed quality. Thus, the objective of this study was, at Cerrado region, evaluate the effects of nitrogen and sulfur fertilization at yield and contents of oil and crude protein in the grains. We also sought relate to grain yield the S content in the soil and concentrations of N and S in the diagnosis leaf. The experiment was conducted in Uberaba County, State of Minas Gerais, Brazil, in an Oxisol, utilizing the Hyola 401 hybrid. The treatments consisted in a factorial scheme 5 x 4 (five N rates: 0, 60, 100, 140 and 180 kg ha(-1) and; four S rates: 0, 15, 30 and 60 kg ha(-1)) in a randomized blocks design, with four replicates. The nitrogen and sulfur fertilization increased canola grain yield, without significantly alter contents of oil and crude protein. Rates higher than to 140 kg ha(-1) of N and 15 kg ha(-1) of S provided grain yield above 1100 kg ha(-1). Plots with yield higher than to 1000 kg ha(-1) presented foliar concentration of N above 52 g kg(-1). The highest S content was observed at the 0.15-0.30 m layer, proving the sulfate anion mobility. The lowest grain yield were observed when the S content in the soil at this layer were less than 4 mg dm(-3). The N concentrations in the diagnostic leaf and S-SO4-2 content in the 0.15-0.30 m layer correlated positively with crop yield. Univ Estadual Paulista, Dept Solos & Adubos, Fac Ciencias Agr & Vet, Curso Posgrad Agron Prod Vegetal,UNESP FCAV, Sao Paulo, SP, Brazil Empresa Pesquisa Agr Minas Gerais, Unidade Reg Triangulo Mineiro & Alto Paranaiba, Uberaba, MG, Brazil Univ Estadual Paulista, Dept Solos & Adubos, Fac Ciencias Agr & Vet, Curso Posgrad Agron Prod Vegetal,UNESP FCAV, Sao Paulo, SP, Brazil

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:47:16Z No. of bitstreams: 1 S0100-204X2012001000009.pdf: 883192 bytes, checksum: e1cf3a6cb3c2075f3024008b544d85f3 (MD5) Made available in DSpace on 2013-08-22T18:47:17Z (GMT). No. of bitstreams: 1 S0100-204X2012001000009.pdf: 883192 bytes, checksum: e1cf3a6cb3c2075f3024008b544d85f3 (MD5) Previous issue date: 2012-10-01 Made available in DSpace on 2013-09-30T19:37:02Z (GMT). No. of bitstreams: 2 S0100-204X2012001000009.pdf: 883192 bytes, checksum: e1cf3a6cb3c2075f3024008b544d85f3 (MD5) S0100-204X2012001000009.pdf.txt: 39583 bytes, checksum: d9a38e4efd73984d671b5e4ab37c801a (MD5) Previous issue date: 2012-10-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:09:57Z No. of bitstreams: 2 S0100-204X2012001000009.pdf: 883192 bytes, checksum: e1cf3a6cb3c2075f3024008b544d85f3 (MD5) S0100-204X2012001000009.pdf.txt: 39583 bytes, checksum: d9a38e4efd73984d671b5e4ab37c801a (MD5) Made available in DSpace on 2014-05-20T15:09:57Z (GMT). No. of bitstreams: 2 S0100-204X2012001000009.pdf: 883192 bytes, checksum: e1cf3a6cb3c2075f3024008b544d85f3 (MD5) S0100-204X2012001000009.pdf.txt: 39583 bytes, checksum: d9a38e4efd73984d671b5e4ab37c801a (MD5) Previous issue date: 2012-10-01 O objetivo deste trabalho foi determinar o sistema de plantio de abacaxizeiro intercalado com cafeeiro que proporciona o maior retorno econômico, sem comprometer o desenvolvimento vegetativo e a produtividade de cafezal irrigado. Utilizou-se o delineamento em blocos ao acaso, com quatro repetições e dez plantas úteis por parcela. Os sistemas irrigados de cultivo consistiram em: duas e três fileiras simples de abacaxizeiro, nas entrelinhas do cafeeiro, ou quatro linhas em fileiras duplas. O desenvolvimento vegetativo do cafeeiro foi avaliado aos 6, 12 e 18 meses após o plantio, e a produtividade aos 28 meses. O cultivo de duas fileiras simples favoreceu o desenvolvimento do cafeeiro, e os demais sistemas não tiveram efeito sobre esse parâmetro. A produtividade do cafeeiro foi maior nos sistemas de cultivo com duas e três fileiras de abacaxi. Os três sistemas de cultivo apresentaram retornos econômicos positivos. O sistema intercalar com três fileiras simples proporciona o melhor retorno, sem comprometer o desenvolvimento vegetativo e a produtividade do cafeeiro. The objective of this work was to determine the planting system of pineapple intercropped with coffee plants that provides the highest economic return, without harming the vegetative development and yield of the irrigated coffee crop. A randomized complete block design was used, with four replicates and ten useful plants per plot. The irrigated cropping systems consisted of two and three single rows of pineapple between coffee rows, or of two double rows of pineapples. Vegetative development of the coffee plants was evaluated at 6, 12, and 18 months after planting, and the coffee yield at 28 months. Cultivation of two single rows of pineapple improved coffee development, and the other planting systems did not harm coffee development. Coffee yield was greater in the cropping systems with two and three intercropped rows of pineapples. The three planting systems had positive economic return. The system with three single rows provide the best economic return, without compromising the vegetative growth and yield of coffee plants. Empresa de Pesquisa Agropecuária de Minas Gerais Universidade Federal de Lavras (UFLA) Departamento de Engenharia agrícola Recursos Humanos no Agronegócio Universidade Estadual Paulista Universidade Estadual Paulista

Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:26:17Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:47:31Z : No. of bitstreams: 1 2-s2.0-84857005764.pdf: 68854 bytes, checksum: 0c1721960d06617d26c73f6d9d6cefee (MD5) Made available in DSpace on 2014-05-27T11:26:17Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-12-01 Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) The longtailed mealybug Pseudococcus longispinus (Targioni Tozzetti, 1867) (Hemiptera: Pseudococcidae) has been reported attacking coffee crops causing fruit fall in the State of Minas Gerais, Brazil. The knowledge of the population dynamic of this pest is then necessary to implement control measures. Its development was studied at temperatures of 15, 20, 25, 30 and 35°C, determining the thermal requirements. The insects were confined inside a Petri dish containing a foliar disc of 4 cm diameter of Coffea arabica L., cultivar 'Acaiá Cerrado'. The temperature affected the P. longispinus development and survival. Few insects survived at temperatures of 15 and 30°C, and 100% of mortality was obtained at 35°C. The duration of the nymphal stage was reduced when the temperature was increased from 20 to 25°C, with a survival rate of 80% at both temperatures. The thermal parameters varied according to the development stage of the mealybug and the base temperature was fixed at 8.0 °C for the nymphal stage of females, a thermal constant of 422.1 day degrees and number of generations increased with rising temperature. The optimal temperature for the insect development was 25°C. Engenheira Agrônoma, D.Sc IMA/EPAMIG-URESM - EcoCentro, Caixa Postal 176 - 37.200-000 - Lavras- MG, Pesquisadora da FAPEMIG Engenheiro Agrônomo, D. Sc EPAMIG/URESM-EcoCentro, Caixa Postal 176 - 37.200-000 - Lavras- MG, Pesquisador e Bolsista CBPD and D/Café/EPAMIG Engenheira Agrônoma, Doutoranda, Departamento de Fitopatologia/DFP Universidade Federal de Lavras/UFLA, Caixa Postal 3037 - 37.200-000-Lavras, MG Bióloga, Mestranda Departamento de Entomologia/DEN Universidade Federal de Lavras/UFLA, Caixa Postal 3037 - 37.200-000 Lavras, MG Bióloga, Engenheira Agrônoma, Doutoranda Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias Departamento de Fitossanidade, Via de Acesso Prof. Paulo Donato Castellane, s/n, 14.884-900 Jaboticabal, SP - Lenira Viana Costa Santa-Cecília Bióloga, Engenheira Agrônoma, Doutoranda Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias Departamento de Fitossanidade, Via de Acesso Prof. Paulo Donato Castellane, s/n, 14.884-900 Jaboticabal, SP - Lenira Viana Costa Santa-Cecília

Mealybugs (Hemiptera: Pseudococcidae) are major pests of a wide range of crops and ornamental plants worldwide. Their high degree of morphological similarity makes them difficult to identify and limits their study and management. We aimed to identify a set of markers for the genetic characterization and identification of complexes of taxa in the Pseudococcidae. We surveyed and tested the genetic markers used in previous studies and then identified new markers for particularly relevant genomic regions for which no satisfactory markers were available. We tested all markers on a subset of four taxa distributed worldwide. Five markers were retained after this first screening: two regions of the mitochondrial cytochrome oxidase I gene, 28S-D2, the entire internal transcriber space 2 locus and the rpS15-16S region of the primary mealybug endosymbiont Tremblaya princeps. We then assessed the utility of these markers for the characterization and identification of 239 samples from 43 sites in France and Brazil. The five markers studied (i) successfully distinguished all species identified by morphological examination, (ii) disentangled complexes of species by revealing intraspecific genetic variation and identified a set of closely related taxa for which taxonomic status requires clarification through further studies, and (iii) facilitated the inference of phylogenetic relationships between the characterized taxa. Made available in DSpace on 2016-10-26T21:35:54Z (GMT). No. of bitstreams: 1 BottonJAppliedEntomology2011.pdf: 351568 bytes, checksum: 04d74b3335f6d82ee407dbd92754338e (MD5) Previous issue date: 2011-01-31

Made available in DSpace on 2013-08-12T19:08:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-06-01 Made available in DSpace on 2013-09-30T17:59:09Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-06-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:17:14Z No. of bitstreams: 0 Made available in DSpace on 2014-05-20T13:17:14Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-06-01 In the North of Minas Gerais it is cultivated basically 'Prata-Ana' banana, a cultivar that requires mainly Zn. The possibility of zinc supply, without this nutrient getting in contact with the soil, it is important for the region, since several factors take to the low availability of the element supplied by the soil, as: elevated organic matter content on the surface (from cultural residues); maintenance of high pH of the soil - above 6,00 - as strategy contrary to the proliferation of the causal agent of the Fusarium Wilt; frequent fertilizations with potassium and magnesium that, besides converting the medium into base, they reduce the participation of Zn in the balance cation/anion of the soil, hindering the absortion of this micronutrient by the plant. For determining the distribution of biomass and minerals in the Prata-Ana" banana, cultivated under irrigation in the North of Minas Gerais, when the zinc was supplied through thinned sprout, an experiment was carried out in the Irrigated Perimeter of Jaiba. The plants were fertilized with 0,00; 1,66 and 3,33 g.family-(1) of Zn, through thinned sprout. One month after the fertilizations from October 2007 and February 2008, the production of fresh mass (FM) and dry mass (DM) were evaluated, the contents and meanings of minerals in all the bananas "family" bodies composed by mother-plant with bunch + tall daughter-plant + granddaughter-plant. The doses of Zn did not influence on the production of FM and DM of the plants in the first evaluation, while in the second evaluation positive effect of the treatment was observed just for MF accumulated in the inferior leaves, in the portions of the medium third and inferior of the pseudostem, and in the mother-plant's rhizome. As much the content as the accumulation of nutrients in the mother-plants presented the following decreasing order: K > N > Ca > Mg > P > S > Fe > Zn > B > Cu. The Zn contents were affected by the dose of that micronutrient in the most of the studied situations. The zinc supplied through thinned sprout increased in the mother-plant, and then it was redistributed in the banana's "family". EPAMIG URENM, BR-39525000 Nova Porteirinha, MG, Brazil Inst Fed Educ Ciência & Tecnol Norte Minas Gerais, BR-39480000 Januaria, MG, Brazil UNESP, FCAV, Dept Solos & Adubos, BR-14870000 Jaboticabal, SP, Brazil UNESP, FCAV, Dept Solos & Adubos, BR-14870000 Jaboticabal, SP, Brazil

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:48:04Z No. of bitstreams: 1 S0100-29452010000200034.pdf: 590891 bytes, checksum: e0afbae56d983e144fe705ccde0c804d (MD5) Made available in DSpace on 2013-08-22T18:48:04Z (GMT). No. of bitstreams: 1 S0100-29452010000200034.pdf: 590891 bytes, checksum: e0afbae56d983e144fe705ccde0c804d (MD5) Previous issue date: 2010-06-01 Made available in DSpace on 2013-09-30T19:37:51Z (GMT). No. of bitstreams: 2 S0100-29452010000200034.pdf: 590891 bytes, checksum: e0afbae56d983e144fe705ccde0c804d (MD5) S0100-29452010000200034.pdf.txt: 54341 bytes, checksum: f7723d65fed9fcdaa709ac3436f05a2e (MD5) Previous issue date: 2010-06-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:10:10Z No. of bitstreams: 2 S0100-29452010000200034.pdf: 590891 bytes, checksum: e0afbae56d983e144fe705ccde0c804d (MD5) S0100-29452010000200034.pdf.txt: 54341 bytes, checksum: f7723d65fed9fcdaa709ac3436f05a2e (MD5) Made available in DSpace on 2014-05-20T15:10:10Z (GMT). No. of bitstreams: 2 S0100-29452010000200034.pdf: 590891 bytes, checksum: e0afbae56d983e144fe705ccde0c804d (MD5) S0100-29452010000200034.pdf.txt: 54341 bytes, checksum: f7723d65fed9fcdaa709ac3436f05a2e (MD5) Previous issue date: 2010-06-01 O Norte de Minas Gerais cultiva basicamente bananeira 'Prata-Anã', cultivar especialmente exigente em zinco. A possibilidade de fornecimento de Zn, sem que esse entre em contato com o solo, é importante para a região, uma vez que vários fatores levam à baixa disponibilidade do elemento fornecido via solo, como: elevado teor de matéria orgânica na camada superficial (resultante de resíduos culturais); manutenção de elevado pH do solo - acima de 6,00 - como estratégia contrária à proliferação do agente causal do mal- do-panamá; adubações frequentes com potássio e magnésio, que além de basificar o meio, diminuem a participação do Zn no equilíbrio cátion-ânion do solo, dificultando a absorção deste micronutriente pela planta. Para determinar a distribuição de biomassa e minerais na bananeira Prata-Anã, cultivada sob irrigação no norte de Minas Gerais, quando o zinco é fornecido via broto desbastado, foi conduzido um experimento no Perímetro Irrigado de Jaíba. As plantas foram adubadas com 0,00; 1,66 e 3,33 g.família-1 de Zn (0; 25 e 50 g.família-1.ano-1 de sulfato de Zn), via muda desbastada. Um mês após as adubações de outubro de 2007 e junho de 2008, avaliaram-se a produção de massa fresca (MF) e massa seca (MS), os teores e conteúdos de minerais em todos os órgãos de uma ''família'' de bananeira composta por planta-mãe com cacho + planta-filha alta + planta-neta. As doses de Zn não influíram na produção de MF e MS das plantas na primeira avaliação, enquanto na segunda avaliação observou-se efeito positivo do tratamento apenas para MF acumulada nas folhas inferiores, nas porções do terço médio e inferior do pseudocaule, e no rizoma da planta-mãe. Tanto o teor quanto o acúmulo de nutrientes nas plantas-mãe apresentaram a seguinte ordem decrescente: K > N > Ca > Mg > P > S > Fe > Zn > B > Cu. Os teores de Zn foram afetados pela dose desse micronutriente na maioria das situações estudadas. O Zn fornecido via broto desbastado ascendeu na planta-mãe, e daí se redistribuiu na ''família'' da bananeira. In the North of Minas Gerais it is cultivated basically banana 'Prata-Anã', cultivar that requires mainly Zn. The possibility of supply of zinc, without this nutrient gets in touch with the soil, it is important for the region, since several factors take to the low availability of the element supplied by the soil, as: elevated organic matter content on the surface (from cultural residues); maintenance of high pH of the soil - above 6,00 - as strategy contrary to the proliferation of the causal agent of the Fusarium Wilt; frequent fertilizations with potassium and magnesium that, besides converting the medium into base, they reduce the participation of Zn in the balance cation/anion of the soil, hindering the absortion of this micronutrient by the plant. For determining the distribution of biomass and minerals in the banana Prata-Anã, cultivated under irrigation in the North of Minas Gerais, when zinc supplied through thinned sprout, an experiment was carried out in the Irrigated Perimeter of Jaíba. The plants were fertilized with 0,00; 1,66 and 3,33 g.family-1 of Zn, through thinned sprout. One month after the fertilizations from October, 2007 and February, 2008, the production of fresh mass (FM) and dry mass (DM) were evaluated, the contents and meanings of minerals in all of the banana ''family'' bodies composed by mother-plant with bunch + tall daughter-plant + plant-granddaughter. The doses of Zn did not influence on the production of FM and DM of the plants in the first evaluation, while in the second evaluation positive effect of the treatment was observed just for MF accumulated in the inferior leaves, in the portions of the medium third and inferior of the pseudostem, and in the mother-plant's rhizome. As much the content as the accumulation of nutrients in the mother-plants presented the following decreasing order: K > N > Ca > Mg > P > S > Fe > Zn > B > Cu. The Zn contents were affected by the dose of that micronutrient in the most of the studied situations. The zinc supplied through thinned sprout increased in the mother-plant, and then it was redistributed in the banana's ''family''. URNM EPAMIG Instituto Federal de Educação Unesp FCAV Unesp FCAV

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:48:02Z No. of bitstreams: 1 S0100-29452010000100040.pdf: 30525 bytes, checksum: 42ec1aa600f8cb70e739b4f88ee7f886 (MD5) Made available in DSpace on 2013-08-22T18:48:02Z (GMT). No. of bitstreams: 1 S0100-29452010000100040.pdf: 30525 bytes, checksum: 42ec1aa600f8cb70e739b4f88ee7f886 (MD5) Previous issue date: 2010-03-01 Made available in DSpace on 2013-09-30T17:59:29Z (GMT). No. of bitstreams: 2 S0100-29452010000100040.pdf: 30525 bytes, checksum: 42ec1aa600f8cb70e739b4f88ee7f886 (MD5) S0100-29452010000100040.pdf.txt: 22022 bytes, checksum: b22879289cb159d9a173107b86eab2c8 (MD5) Previous issue date: 2010-03-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:17:20Z No. of bitstreams: 2 S0100-29452010000100040.pdf: 30525 bytes, checksum: 42ec1aa600f8cb70e739b4f88ee7f886 (MD5) S0100-29452010000100040.pdf.txt: 22022 bytes, checksum: b22879289cb159d9a173107b86eab2c8 (MD5) Made available in DSpace on 2014-05-20T13:17:20Z (GMT). No. of bitstreams: 2 S0100-29452010000100040.pdf: 30525 bytes, checksum: 42ec1aa600f8cb70e739b4f88ee7f886 (MD5) S0100-29452010000100040.pdf.txt: 22022 bytes, checksum: b22879289cb159d9a173107b86eab2c8 (MD5) Previous issue date: 2010-03-01 Para diagnose nutricional da bananeira, é necessário padronizar a amostragem do tecido a ser utilizado, já que a composição mineral varia com a idade da planta, com a folha amostrada, entre as diversas partes da folha, ao que se somam as condições ecológicas, diferenças varietais e flutuações sazonais dos elementos. Portanto, a possibilidade de equívoco na interpretação é considerável. O Método de Amostragem Internacional de Referência (MEIR) para bananeira recomenda coletar a terceira folha de plantas com cachos que apresentem todas as pencas visíveis e não mais que três mãos de flores masculinas abertas, retirando-se a metade interna de uma faixa central do limbo, desprovida da nervura central. Há uma dificuldade em seguir tal recomendação para bananeira 'Prata-Anã' cultivada no norte de Minas Gerais, pois ela possui porte alto e roseta foliar muito densa, que confunde a localização da folha amostrada. Além disso, normalmente, as amostras são retiradas com largura diferente dos 10 cm recomendados. Dadas as dificuldades de amostragem da bananeira 'Prata-Anã' e o fato de besta cultivar sob irrigação ser pouco estudada, comparada àquelas do subgrupo Cavendish, o presente trabalho objetivou determinar o efeito da folha amostrada e da largura da amostra sobre os teores minerais de bananeira 'Prata-Anã' cultivada sob irrigação no norte de Minas Gerais. Apesar das variações estatísticas, os teores foliares mantiveram-se dentro da faixa de suficiência, independentemente da posição da folha amostra da- 2ª, 3ª ou 4ª folha - ou do tamanho da amostra - 10; 20 ou 30 cm de largura. Isto sugere que a coleta de folha na posição acima (segunda) ou abaixo (quarta) da folha recomendada terceira, numa largura foliar de 10 a 30 cm, pouco altera os teores foliares em relação à indicação pelo método MEIR, tolerando-se assim uma possível variação da amostra quanto à posição e à largura foliar testadas. For nutritional diagnosis of the banana it is necessary to standardize the tissue sampling to be used, since the mineral composition changes with the plant age, sampled leaf, among the several parts of the leaf, besides ecological conditions, variety differences and seasonal fluctuations of the elements. Therefore, the possibility of mistake in the interpretation is considerable. The Method of International Sampling of Reference (MEIR) for banana recommends to collect the third leaf of plants with bunches that present all of the visible hands and no more than three hands of open masculine flowers, leaving the internal half of a central grade of the limbus, without the central rib. There is some difficulty in following such recommendation for banana tree 'Prata-Anã' cultivated in the North of Minas Gerais, because it possesses high load and very dense foliar rosette that confuses the location of the sampled leaf. Moreover, usually the samples are removed with width different from the recommended 10 cm. Due to the sampling difficulties of the 'Prata-Anã' banana and the fact that this cultivar, under irrigation, to be little studied when compared to those of the subgroup Cavendish, the present work aimed to determine the effect of the sampled leaf and the sample width on the mineral contents of the 'Prata-Anã' banana tree cultivated under irrigation in the North of Minas Gerais. In spite of the statistical variations, the foliar contents maintained themselves inside of the sufficiency grade, regardless of the sampled leaf position - 2nd, 3rd or 4th leaf - or of the sample size - 10, 20 or 30 cm of width. This suggests that the leaf collection in the position above (second) or below (fourth) of the third recommended leaf, in a foliar width from 10 to 30 cm, does not alter a lot the foliar contents in relation to the indication by the MEIR, thus being tolerated as a possible sample variation for the tested position and foliar width. EPAMIG-CTNM FAPEMIG Instituto Federal de Educação, Ciência e Tecnologia do Norte de Minas Gerais Campus Januária Unesp FCAV Dept. Solos e Adubos Unesp FCAV Dept. Solos e Adubos

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T19:00:09Z No. of bitstreams: 1 S0103-84782010000100004.pdf: 49420 bytes, checksum: b0c10d271b296e88da2a3603e9085ddb (MD5) Made available in DSpace on 2013-08-22T19:00:09Z (GMT). No. of bitstreams: 1 S0103-84782010000100004.pdf: 49420 bytes, checksum: b0c10d271b296e88da2a3603e9085ddb (MD5) Previous issue date: 2010-02-01 Made available in DSpace on 2013-09-30T17:47:58Z (GMT). No. of bitstreams: 2 S0103-84782010000100004.pdf: 49420 bytes, checksum: b0c10d271b296e88da2a3603e9085ddb (MD5) S0103-84782010000100004.pdf.txt: 21417 bytes, checksum: a17735ffd967b49d288e48dfea44b8e6 (MD5) Previous issue date: 2010-02-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:21:05Z No. of bitstreams: 2 S0103-84782010000100004.pdf: 49420 bytes, checksum: b0c10d271b296e88da2a3603e9085ddb (MD5) S0103-84782010000100004.pdf.txt: 21417 bytes, checksum: a17735ffd967b49d288e48dfea44b8e6 (MD5) Made available in DSpace on 2014-05-20T13:21:05Z (GMT). No. of bitstreams: 2 S0103-84782010000100004.pdf: 49420 bytes, checksum: b0c10d271b296e88da2a3603e9085ddb (MD5) S0103-84782010000100004.pdf.txt: 21417 bytes, checksum: a17735ffd967b49d288e48dfea44b8e6 (MD5) Previous issue date: 2010-02-01 Visando a aumentar o aproveitamento do material propagativo, ampliar o período de oferta das mudas de marmeleiro e dinamizar o uso da mão-de-obra no viveiro, faz-se necessário o armazenamento dos ramos porta-borbulhas. Sendo assim, o presente trabalho teve por objetivos estudar a viabilidade da manutenção dos ramos porta-borbulhas de diferentes cultivares de marmeleiro, por meio do armazenamento a frio, e diagnosticar o método de enxertia para promover melhor desenvolvimento do enxerto. Ramos dos marmeleiros 'Japonês' (Chaenomeles sinensis), 'Smyrna', 'Portugal', 'Mendoza Inta-37' e 'Provence' (Cydonia oblonga) foram coletados em julho de 2008. Uma parte dos ramos foi utilizada para a realização da enxertia (métodos de borbulhia e garfagem) em mudas de seis meses de idade do porta-enxerto 'Japonês', e a outra parte foi armazenada sob baixa temperatura (estacas envoltas em papel umedecido, embrulhadas em sacos de polietileno colocadas em câmara fria a 4°C), por 30 e 60 dias. Passados 60 dias, foi mensurada a porcentagem de brotação dos enxertos e, ao final de 120 dias da realização das enxertias, foram mensurados o comprimento, o diâmetro e a massa seca média dos enxertos. Concluiu-se que, apesar de as cultivares apresentarem diferença, recomenda-se que os ramos sejam armazenados por até 30 dias, sendo utilizada a enxertia pelo método de garfagem. In order to increase the use of propagation material, enlarge the offer period of the quince seedlings production and dynamic use of the labor in the nursery, it becomes necessary to store the of budsticks. Thus, the present research aimed to study the feasibility of the maintaining budstick of different quince cultivars, through cold storage and to verify the grafting method to promote better development of the graft. Branches of the 'Japonês' (Chaenomeles sinensis), 'Smyrna', 'Portugal', 'Mendoza Inta-37' and 'Provence' (Cydonia oblonga) quince cultivars were collected in July, 2008. One of the branches was used for grafting (methods budding and cleft grafting methods) in 'Japonês' rootstock seedlings of six months of age and other part was stored at e low temperature (wrapped up cutting in humidified paper and wrapped up in polyethylene sacks, placed in cold chamber for 4°C) for 30 and 60 days. After 60 days, the percentage of sprouting was measured and 120 days after grafting, the length, diameter and mass dries average of the grafts were measured. It was concluded that, despite the cultivars presented anydifference, it is recommended that the branches need to be stored for up to 30 days, if the cleft grafting is used. Universidade Estadual do Oeste do Paraná (UNIOESTE) Universidade Federal de Uberlândia (UFU) Empresa Brasileira de Pesquisa Agropecuária Centro de Pesquisas Agroflorestais Roraima Empresa de Pesquisa Agropecuária de Minas Gerais Universidade Estadual Paulista Júlio de Mesquita Filho Faculdade de Ciências Agronômicas de Botucatu Departamento de Produção Vegetal Universidade Estadual Paulista Júlio de Mesquita Filho Faculdade de Ciências Agronômicas de Botucatu Departamento de Produção Vegetal

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:44:07Z No. of bitstreams: 0 Made available in DSpace on 2013-08-22T18:44:07Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-03-01 Made available in DSpace on 2013-09-30T17:54:10Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-03-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:15:03Z No. of bitstreams: 0 Made available in DSpace on 2014-05-20T13:15:03Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-03-01 A cochonilha Planococcus citri (Risso, 1813) suga a seiva dos botões florais e frutos do cafeeiro, atacando as rosetas desde a floração até a colheita. Embora seja relatada há alguns anos na cafeicultura, são escassas as informações sobre o desenvolvimento dessa cochonilha em cafeeiros. Assim, o presente trabalho teve por objetivos avaliar alguns aspectos biológicos da fase ninfal de P. citri em plantas de café. Ovos dessa cochonilha foram retirados de uma criação em laboratório, isolados em placas de Petri contendo discos foliares de Coffea arabica L., das cultivares Acaiá Cerrado, Mundo Novo e Catuaí Vermelho e de C. canephora Pierre & Froenher, cultivar Apoatã. As placas foram mantidas em câmara climatizada a 25 ± 1ºC, 70 ± 10% de umidade relativa e 12h de fotofase. Constatou-se que a cultivar Catuaí Vermelho foi a que proporcionou maior duração do período ninfal das fêmeas, porém, não foram constatadas diferenças na mortalidade. Essa cochonilha se desenvolveu satisfatoriamente em todas as cultivares de café estudadas e os resultados não mostraram diferenças claras de susceptibilidade. The citrus mealybug Planococcus citri (Risso, 1813) feeds mainly on flowers and fruits of coffee plants from blooming until harvest. Little is known about its development in coffee although its occurrence is already known for several years. This work aims to study the nymph development of this mealybug in coffee plants. Eggs were isolated from a stock culture kept in laboratory and placed inside Petri dishes containing leaf sections in agar. The tested cultivars were Acaia Cerrado, Mundo Novo, Catuai Vermelho (Coffea arabica) and Apoatã (C. canephora). Insects were kept in a climatized chamber at 25ºC, 70 ± 10% humidity and 12-hour photophase. The longest development period in females was obtained in cultivar Catuai Vermelho. No differences in mortality were found among cultivars. Mealybugs developed in all cultivars and the results did not show clear differences in susceptibility. Empresa de Pesquisa Agropecuária de Minas Gerais Universidade Estadual Paulista Faculdade de Ciências Agrárias e Veterinárias Departamento de Fitossanidade Universidade Federal de Lavras (UFLA) Departamento de Entomologia Universidade Estadual Paulista Faculdade de Ciências Agrárias e Veterinárias Departamento de Fitossanidade

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:55:58Z No. of bitstreams: 1 S0102-09352007000400026.pdf: 193153 bytes, checksum: bb43c502149d80c5aed61333b252da8c (MD5) Made available in DSpace on 2013-08-22T18:55:58Z (GMT). No. of bitstreams: 1 S0102-09352007000400026.pdf: 193153 bytes, checksum: bb43c502149d80c5aed61333b252da8c (MD5) Previous issue date: 2007-08-01 Made available in DSpace on 2013-09-30T19:49:22Z (GMT). No. of bitstreams: 2 S0102-09352007000400026.pdf: 193153 bytes, checksum: bb43c502149d80c5aed61333b252da8c (MD5) S0102-09352007000400026.pdf.txt: 34689 bytes, checksum: 9277aa4778dd764b0f1e757c52320d37 (MD5) Previous issue date: 2007-08-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:18:29Z No. of bitstreams: 2 S0102-09352007000400026.pdf: 193153 bytes, checksum: bb43c502149d80c5aed61333b252da8c (MD5) S0102-09352007000400026.pdf.txt: 34689 bytes, checksum: 9277aa4778dd764b0f1e757c52320d37 (MD5) Made available in DSpace on 2014-05-20T13:18:29Z (GMT). No. of bitstreams: 2 S0102-09352007000400026.pdf: 193153 bytes, checksum: bb43c502149d80c5aed61333b252da8c (MD5) S0102-09352007000400026.pdf.txt: 34689 bytes, checksum: 9277aa4778dd764b0f1e757c52320d37 (MD5) Previous issue date: 2007-08-01 Foram estimadas as correlações genéticas entre características de produção de leite (produção de leite, gordura, proteína e duração da lactação em até 305 dias, na primeira lactação), características de peso (taxa de crescimento de novilhas entre 12-24 meses e peso médio de vacas) e idade ao primeiro parto, em uma população de fêmeas Mestiço Leiteiro Brasileiro (MLB), por meio de metodologia REML, sob modelo animal. As estimativas de herdabilidade das características estudadas na ordem acima foram, respectivamente, 0,28± 0,08, 0,30±0,11, 0,28±0,09, 0,19±0,07, 0,18±0,06, 0,42±0,10 e 0,48±0,12. As correlações genéticas entre peso médio da vaca e a produção de leite, gordura e proteína foram, respectivamente, -0,22±0,22, -0,49±0,31 e -0,22±0,23 e da taxa de crescimento das novilhas com a produção de leite, gordura e proteína foram respectivamente, -0,59±0,35, -0,73±0,44 e -0,62±0,37. As correlações genéticas entre produção de leite, peso médio das vacas e taxa de crescimento das novilhas com idade ao primeiro parto foram respectivamente, 0,05±0,18, -0,05±0,18 e 0,02±0,20. A alta correlação genética (0,93±0,02) entre produção de leite e duração da lactação indicou que não se deve remover a variação na duração da lactação na seleção de gado leiteiro tropical. Genetic correlations between milk production (milk, fat, protein yield lactation length in 305-d lactation), live weight (average cow live weight, growth rate between 12-24 mo) and age at first calving traits were estimated in a population of Mestiço Leiteiro Brasileiro (MLB) females using REML methodology and animal model. The estimates of heritability were respectively, 0.28± 0.08, 0.30±0.11, 0.28±0.09, 0.19±0.07, 0.18±0.06, 0.42±0.10 and 0.48±0.12 for those traits. Genetic correlations between milk, fat and protein yield with cow average weight were, respectively, -0.22±0.22, -0.49±0.31, -0.22±0.23, and between milk, fat and protein yield with heifer live weight gain, -0.59±0.35, -0.73±0.44, -0.62±0.37 as well. Genetic correlations between milk yield, cow average weight and heifer live weight gain with age at first calving were, respectively, 0.05±0.18, -0.05±0.18, 0.02±0.20. The high genetic correlation between milk production and lactation length (0.93±0.02) indicated that variation of the lactation length should not be removed when selecting tropical dairy cattle. APTA Regional - Nordeste Paulista UFMG Escola de Veterinária UNESP Faculdade de Ciências Agrárias e Veterinárias Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Gado de Leite Epamig Universidade Federal de Mato Grosso do Sul UNESP Faculdade de Ciências Agrárias e Veterinárias

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T19:07:02Z No. of bitstreams: 1 S1516-35982007000100028.pdf: 63738 bytes, checksum: 4916dd65af9b8a4f3df8f7398876a446 (MD5) Made available in DSpace on 2013-08-22T19:07:02Z (GMT). No. of bitstreams: 1 S1516-35982007000100028.pdf: 63738 bytes, checksum: 4916dd65af9b8a4f3df8f7398876a446 (MD5) Previous issue date: 2007-02-01 Made available in DSpace on 2013-09-30T20:11:30Z (GMT). No. of bitstreams: 2 S1516-35982007000100028.pdf: 63738 bytes, checksum: 4916dd65af9b8a4f3df8f7398876a446 (MD5) S1516-35982007000100028.pdf.txt: 48869 bytes, checksum: bdab3dafeaa28113361b09ba93bd4b0a (MD5) Previous issue date: 2007-02-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:18:10Z No. of bitstreams: 2 S1516-35982007000100028.pdf: 63738 bytes, checksum: 4916dd65af9b8a4f3df8f7398876a446 (MD5) S1516-35982007000100028.pdf.txt: 48869 bytes, checksum: bdab3dafeaa28113361b09ba93bd4b0a (MD5) Made available in DSpace on 2014-05-20T13:18:10Z (GMT). No. of bitstreams: 2 S1516-35982007000100028.pdf: 63738 bytes, checksum: 4916dd65af9b8a4f3df8f7398876a446 (MD5) S1516-35982007000100028.pdf.txt: 48869 bytes, checksum: bdab3dafeaa28113361b09ba93bd4b0a (MD5) Previous issue date: 2007-02-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Avaliou-se o efeito da deficiência de PB na dieta sobre o consumo e as digestibilidades total, ruminal e intestinal dos nutrientes em novilhos mestiços. Os tratamentos consistiram de dietas compostas de feno de tifton 85 (FN) suplementadas com uréia (FNUR), farelo de soja (FNFS) e farelo de glúten de milho-60 (FNGL). Foram utilizados oito novilhos canulados no rúmen e no duodeno, distribuídos em dois quadrados latinos 4 x 4. As digestibilidades ruminal e intestinal dos nutrientes, a produção fecal e o fluxo duodenal de MS foram estimados utilizando-se a fibra em detergente ácido indigestível (FDAi) como indicador, enquanto a digestibilidade total foi determinada pelo método de coleta total de fezes. Os consumos de nutrientes (MS, MO, PB, CT, FDN, FDA e EB) não foram afetados pelos teores de PB das dietas. A digestibilidade aparente total da FDA foi superior para a dieta FNGL (55,48%) em relação à FNFS (41,29%). As digestibilidades ruminais dos nutrientes, à exceção da PB, não diferiram significativamente entre as dietas, mas a digestibilidade intestinal da PB nas dietas FNFS (66,70%) e FNGL (80,25%) foi superior à observada na dieta FNUR (57,61%). O teor de PB das dietas não alterou o consumo (exceto de PB e CNF) e as digestibilidades parciais dos nutrientes (exceto de PB). Eight crossbred steers fitted with ruminal and duodenal cannulas were randomly assigned to two replicated 4 x 4 Latin squares to evaluate the effects of crude protein (CP) levels on intake and total, ruminal and intestinal digestibility of nutrients. Animals were fed a control diet containing Tifton 85 bermudagrass hay or the control diet supplemented with urea (NPN diet), soybean meal (SBM diet) or corn gluten meal-60 (CGM diet). Indigestible acid detergent fiber was used as the internal marker for measuring duodenal flow of dry matter, ruminal and intestinal digestibility, and fecal output of nutrients. Total fecal collection was used to determine total tract digestibility of nutrients. Nutrient intakes (DM, OM, CP, TC, NDF, ADF, and GE) did not differ among diets. However, apparent total tract digestibility of acid detergent fiber was greater on CGM (55.48%) than on SBM diet (41.29%). Except for CP, ruminal digestibilities of all remaining nutrients were similar across diets. Intestinal digestibility of CP on SBM (66.70%) and CGM diets (80.25%) were higher than that on the NPN diet (57.61%). It can be concluded that supplementation with different protein sources did not change intake (except for CP and nonfiber carbohydrates) and the partial digestibility of nutrients (except for CP). EPAMIG UNESP FCAV Universidade Federal de Goiás (UFG) Escola de Veterinária DPA FCAV/UNESP, Jaboticabal

Neste trabalho, estudou-se o efeito de parâmetros de extrusão sobre o índice de expansão (IE), volume específico (VE), índice de absorção de água (IAA) e índice de solubilidade em água (ISA) de extrusados de inhame. O processamento foi executado em extrusor mono rosca. Para analisar o efeito combinado das variáveis independentes nas características tecnológicas dos extrusados de farinha de inhame, utilizou-se o delineamento 'central composto rotacional' para três fatores. O desenho experimental foi elaborado para verificar o efeito de três níveis de temperatura na última zona de extrusão (100, 115 e 130ºC), rotação da rosca (163, 204 e 245 rpm) e umidade das farinhas (12, 15 e 18%). Os resultados obtidos mostraram que a umidade e a temperatura influenciaram os parâmetros de expansão (IE e VE). O índice de solubilidade em água (ISA) foi dependente dos três parâmetros do processo. Temperatura elevada e alta rotação da rosca promoveram maiores valores de ISA. Nas condições estudadas, os parâmetros de extrusão não influenciaram o índice de absorção de água (IAA). Effect of extrusion parameters was studied on the expansion index, specific volume, water absorption index (WAI) and water solubility index (WSI) of expanded yam snacks. The central composite design was used to study the parameters effect. It was verified three levels of temperature in the barrel (100, 115 and 130ºC), three levels of screw speed (163, 204 and 245 rpm) and three levels of flour moisture (12, 15 and 18%). The results showed that expansion properties (expansion index and specific volume) depend on flour moisture and extrusion temperature. The WSI was dependant of three parameters. Higher levels of temperature and screw speed increase the water solubility index (WSI). The studied parameters did not influence the water absorption index (WAI).