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CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico FAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Outra Agência Objetivou-seavaliar o efeito de doses do herbicida atrazina em pós-emergência do sorgo solteiro e em consórcio com a Urochloa brizanthacv. Marandu sob as características agronômicas e bromatológicas. Os tratamentos foram constituídos de cinco doses de herbicida a base de atrazina (0, 1000, 2000,3000 e 4000 g ha-1do ingrediente ativo)seguindo o delineamento experimental em blocos casualizados em esquema fatorial 5 x2, sendo cinco doses e duas épocas de aplicação com quatro repetições. Não houve interação (P>0,05) entre as doses de atrazina e sistemas de cultivo sobre a altura das plantas, produção de matéria seca (PMS) e produção de grãos (PG). A altura das plantas, PMS e PG foi 5,83%, 16,89% e 58,06% superior no sistema de cultivo solteiro em relação ao consórcio (médiasde 1,13 metros, 2,35 t ha-1, 1,95 t ha-1), respectivamente. Não foi verificado efeito isolado das doses de atrazina e sistemas de cultivo sobre o teor de proteína bruta, sendo a média geral de 7,99%. O sistema de cultivo solteiro melhorou a produtividade de massa e grãosdo sorgo.Visando o controle exclusivo do crescimento e desenvolvimento da Urochloa brizanthacv. Maranduem sistemas consorciado com o sorgo não se recomenda aplicação do herbicida Atrazina. The objective was to evaluate the effect of doses of the herbicide atrazine in post-emergence of single sorghum and in consortium with Urochloa brizanthacv. Marandu under agronomic and bromatological characteristics. The treatmentsconsisted of five doses of herbicide based on atrazine (0, 1000, 2000, 3000 and 4000 g ha-1of the active ingredient) following the experimental design in randomized blocks in a 5 x 2 factorial scheme, with five doses and two application times with four repetitions. There was no interaction (P> 0.05) between the doses of atrazine and cultivation systems on plant height, dry matter production (DMP) and grain production (GP). The plant height, DMPand GP was 5.83%, 16.89% and 58.06% higher in the single cultivation system in relation to the consortium (meansof 1.13 meters, 2.35 t ha-1, 1,95 t ha-1), respectively. There was no isolated effect of the doses of atrazine and culture systems on the crude protein content, with an overall average of 7.99%. The single cultivation system improved the mass and grain yield of sorghum. Aiming at the exclusive control of the growth and development of Urochloa brizanthacv. Marandu in systems intercropped with sorghum is not recommended to apply the herbicide Atrazine

RESUMO - A fim de maximizar a eficiencia no processo industrial, armazenar as sementes ja tratadas com fungicidas e inseticidas e de grande importância. Porem, pouco se sabe sobre o resultado desta pratica. Objetivou-se avaliar o efeito do tratamento quimico de sementes de hibridos de milho de diferentes tamanhos, com fungicidas e inseticidas, submetidas a diferentes condicoes de armazenamento, sobre o desempenho da cultura em campo. Sementes dos hibridos 2B647PW, BM915 PRO e SHS4070, de formato chato (CH) e classificadas em dois tamanhos (CH20/64 e CH24/64) foram tratadas com a mistura de Carbendazim + Tiram (Derosal Plus®), Deltametrina (Actellic®), Pirimifos metilico (K-obiol®) e agua [tratamento padrao]. Alem do tratamento padrao foram acrescentados a mistura da calda tratamentos com clotianidina (Poncho®); tiametoxam (Cruizer®) e fipronil (Shelter®). Apos tratadas, as sementes foram submetidas a tres condicoes de armazenamento antes de serem semeadas no verao e quatro condicoes de armazenamento para o plantio de outono. Concluiu-se que os tratamentos quimicos e as diferentes condicoes de armazenamento nao interferem na produtividade dos hibridos de milho 2B647 PW, BM915 PRO e SHS4070, independentemente do tamanho das sementes e da epoca de semeadura. Palavras-chave: Zea Mays, vigor de sementes, conservacao, tratamento sanitario, tratamento industrial. AGRONOMIC PERFORMANCE OF CORN CROP BY THE USE OF CHEMICALLY TREATED AND STORED SEEDS ABSTRACT - In order to maximize the efficiency of the industrial process, storing the seeds already treated with fungicides and insecticides is very important. However, little is known about the outcome of this practice. The objective of this study was to evaluate the effect of the treatment of seeds of corn hybrids of different sizes with fungicides and insecticides and subjected to different storage conditions, on the performance of the crop at field. Seeds of the 2B647PW, BM915 PRO and SHS4070 hybrids were classified in two sizes (CH20 / 64 and CH24 / 64) and were treated with Carbendazim + Tiram (Derosal Plus®), Deltametrin (Actellic® ), Pirimiphos methyl (K-obiol®) and water [standard treatment]. In addition to the standard treatment, treatments with clothianidin (Poncho®) were added to the syrup mixture; thiamethoxam (Cruizer®) and fipronil (Shelter®). After being treated the seeds were subjected to three storage conditions before sowing in the summer and four storage conditions for the autumn planting. As conclusion,,the chemical treatments and different storage conditions did not interfere in the productivity of hybrids of maize 2B647 PW, BM915 PRO and SHS4070, regardless of seed size and sowing time. Keywords: Zea mays, seed vigor, conservation, sanitary treatment, industrial treatment.

The chemical treatment of corn seeds is widely adopted for protecting crops at the early stages. However, some molecules interfere in the quality of seeds, especially when stored, by accelerating their deterioration. The objective of this work was to investigate the influence of insecticides on the enzymatic expression and quality of corn seeds subjected to storage. Seeds of the hybrids 2B647PW and SHS4070 were subjected to four different chemical treatments (standard treatment, standard + clothianidin, standard + thiamethoxam, and standard + fipronil) and stored for different periods (0, 3, 6, and 9 months). The quality evaluation included the germination test, first germination count, cold test, and health test. The expression of the enzymes α-amylase, esterase, superoxide dismutase, catalase, and alcohol dehydrogenase were determined by the gel electrophoresis technique. The insecticides clothianidin, thiamethoxam, and fipronil reduce the physiological quality of the seeds of hybrid 2B647PW after nine months of storage. The treatment of seeds with the insecticides clothianidin, thiamethoxam, and fipronil reduces the expression of α-amylase, superoxide dismutase, and catalase enzymes after nine months of storage. The enzymes α-amylase, superoxide dismutase, catalase, and alcohol dehydrogenase are good quality markers for hybrid corn seeds. Resumo: O tratamento químico de sementes de milho é prática amplamente adotada para proteção das lavouras. No entanto, algumas moléculas interferem na qualidade das sementes, sobretudo quando armazenadas, acelerando sua deterioração. O objetivo deste trabalho foi investigar a influência de inseticidas sobre a expressão enzimática e qualidade de sementes de milho submetidas ao armazenamento. Sementes dos híbridos 2B647PW e SHS4070 foram submetidas a quatro diferentes tratamentos químicos (tratamento padrão, padrão + clotianidina, padrão + tiametoxam e padrão + fipronil) e armazenadas por diferentes períodos (0, 3, 6 e 9 meses). Os testes de qualidade incluíram a primeira contagem de germinação, germinação, teste frio sem solo e teste de sanidade. A expressão das enzimas α-amilase, esterase, superóxido dismutase, catalase e álcool desidrogenase foram determinadas pela técnica de eletroforese em gel. Concluiu-se que os inseticidas clotianidina, tiametoxam e fipronil reduzem a qualidade fisiológica das sementes do híbrido 2B647PW aos nove meses de armazenamento. O tratamento das sementes com os inseticidas clotianidina, tiametoxam e fipronil reduz a expressão das enzimas α-amilase, superóxido dismutase e catalase aos nove meses de armazenamento. As enzimas α-amilase, superóxido dismutase, catalase e álcool desidrogenase são bons marcadores da qualidade de sementes híbridas de milho.

The aim of this study was to investigate the effect of treatment with insecticides and fungicides on the physiological quality of corn seeds, classified in sizes, in different periods of storage. Seeds of the hybrid BM915 PRO, classified in two sizes (CH20/64 and CH24/64), were treated with a mixture of carbendazim + thiram (Derosal Plus®), pirimiphos methyl (Actellic®), deltamethrin (K-obiol®), and water (standard treatment). In addition to the standard treatment adopted by the company, treatments with clothianidin (Poncho®), thiamethoxam (Cruizer®), and fipronil (Shelter®) were added to the spray mixture. The seeds were stored in a non-climate-controlled environment in multi-ply paper packages. The physiological quality of the seeds was evaluated every ninety days over a period of 270 days by the germination test, cold test, and accelerated aging. Sanitary quality was also evaluated through the Blotter test. The physiological quality of seeds of the hybrid BM915 PRO is maintained up to ninety days of storage, regardless of the chemical treatment used and the size of the seeds. The addition of the insecticide to the standard treatment used in chemical seed treatment does not affect the action of the fungicides on the fungi in the seeds. Resumo: Objetivou-se verificar a interferência do tratamento com inseticidas e fungicidas sobre a qualidade fisiológica de sementes de milho, classificadas em dois tamanhos, em diferentes períodos de armazenamento. Sementes do híbrido BM915 PRO, classificadas em dois tamanhos (CH20/64 e CH24/64), foram tratadas com calda caracterizada pela mistura de Carbendazim + Thiram (Derosal Plus®), Deltametrina (Actellic®), Pirimifós metílico (K-obiol®) e água (tratamento padrão). Além do tratamento padrão adotado pela empresa, foram acrescentados à mistura da calda tratamentos com clotianidina (Poncho®), tiametoxam (Cruizer®) e fipronil (Shelter®). As sementes foram armazenadas em ambiente não climatizado em embalagens de papel multifoliado. A qualidade fisiológica das sementes foi avaliada, a cada noventa dias, por um período de 270 dias por meio do teste de germinação, teste de frio e envelhecimento acelerado. Foi avaliada, ainda, a qualidade sanitária por meio do Blotter test. Concluiu-se que a qualidade fisiológica das sementes do híbrido BM915 PRO é mantida até os noventa dias de armazenamento, independente do tratamento químico utilizado e do tamanho das sementes. A adição do inseticida ao tratamento padrão utilizado no tratamento químico das sementes não afeta a ação dos fungicidas sobre os fungos presentes nestas.

Objetivou-se identificar as principais espécies de plantas daninhas em cultivo de mangueira aos dois e oito anos após plantio. O estudo foi desenvolvido em áreas irrigados de manga ‘Palmer’ localizadas em Janaúba-MG. Para estudo fitossociológico das plantas daninhas foi utilizado o método quadrado inventário (0,25 m2). Após classificação e quantificação das espécies, foi calculado calcularam-se a frequência (F), frequência relativa (Fr), densidade (D), densidade relativa (Dr), abundância (A), abundância relativa (Ar), índice de valor de importância (IVI), índice de valor de importância relativa (IVIr) e índice de similaridade. Na área com cultivo de mangueira em produção, após oito anos do plantio, foram encontradas 17 espécies, 14 gêneros e oito famílias, sendo Sida rhombifolia a principal espécie com IVIr de 27,8%. Já na área com dois anos de plantio encontrou-se menos espécies com destaque para Paspalum urvillei com IVIr de 70,61%. O índice de similaridade entre as duas áreas foi de 18,18%. Portanto, conclui-se que nas condições locais do cultivo de mangueira de Janaúba-MG, P. urvillei e S. rhombifolia são as principais espécies encontradas em pomares após dois e oito anos após implantação, respectivamente, e além disso, estes apresentam diferentes espécies infestantes comprovado pelo valor do índice de similaridade.Palavras-chave: fitossociologia; plantas daninhas; Mangifera indica. WEED PHYTOSOCIOLOGICAL SURVEY ON MANGO ORCHARDS IN THE MINAS GERAIS SEMIARID ABSTRACT: This study aimed to identify the main weed species in mango cultivation at two and eight years after planting. The study was developed in irrigated areas of 'Palmer' mango located in Janaúba-MG. For weed phytosociological study, the square inventory method (0.25 m2) was used. The frequency (F), relative frequency (Rf), density (D), relative density (Rd), abundance (A), relative abundance (Ra), value index of importance (VII), relative importance value index (RIVI) and similarity index were determined. In the area with mango cultivation in production, after eight years of planting, 17 species, 14 genera and eight families were found, being Sida rhombifolia the main species, with RIVI of 27.8%. In the area with two years of cultivation were found less species, with emphasis to Paspalum urvillei, with RIVI of 70.61%. The similarity index between the two areas was 18.18%. Therefore, it is concluded that in the local conditions of the cultivation of mango of Janaúba-MG, P. urvillei and S. rhombifolia are the main species found in orchards after two and eight years after implantation, respectively, and, in addition, both present different weed species, as proven by the low similarity index value.Keywords: phytosociology; weed; Mangifera indica.

Culturing of sweet sorghum is being considered as an excellent option for ethanol production, from an agronomical and industrial point of view. At present, information regarding the best soil water tension for beginning sweet sorghum irrigation is not available; hence, this study aimed to determine the adequate soil water tension under field conditions for beginning irrigation of four cultivars of sorghum. Two experiments were conducted at Nova Porteirinha, MG, in a randomized block design with sub-subdivided plots having four replications. Each experiment comprised six treatments of soil water tension (plots)-20, 40, 60, 80, 100, and 120 kPa-for resuming sweet sorghum irrigation, and four sweet sorghum cultivars (subplots)-BRS 508, BRS 509, BRS 511, and CMSXS647. After planting, the soil water level in the plots was elevated to field capacity (10 kPa), and then the treatments were applied. During treatment application, irrigation was resumed when the soil water tension reached the limit established in order to elevate the soil water tension to 10 kPa. The amount of water replaced during each irrigation was determined by generating a soil water retention curve for the experimental area. The following parameters were evaluated: green mass production, juice volume, soluble solids (Brix), and tons of Brix per hectare (TBH). The different soil water tensions and cultivars, agricultural year, and interaction between tension and year significantly affected (p ? 0.05) the characteristics evaluated, according to the F test. The agronomical characteristics of the evaluated cultivars showed linear relationship with water supply in the soil. According to TBH, irrigation of sweet sorghum needs to be performed when the soil tension reaches 20 kPa. The TBH values did not differ significantly among the four cultivars at the 5% significance level according to Tukey test.

Selection of tolerant plants is essential to meet the challenges of food production. The objective of this study was to evaluate agronomic and physiological characteristics as indicators for the selection of water restriction-tolerant grain sorghum genotypes. The experiments were conducted in 2014, 2015 and 2016. Two trials were installed in each year, one subjected to full irrigation and the other to water restriction. In the first one, irrigation was performed periodically, at a 2-day interval, to maintain soil moisture close to field capacity. In the second one, irrigation was suspended in the pre-flowering period, keeping the restriction for 30 days. Four sorghum genotypes were used: 9503062 and 9618158 - drought sensitive (S); 9910032 and P898012 - drought tolerant (T). The experimental design was randomized blocks with four replicates. Stomatal conductance, relative chlorophyll content, photosynthetically active leaf area, plant height and yield were evaluated. Joint analysis of the experiments subjected to full irrigation and water restriction of the three years was performed. Under water restriction it was not possible to distinguish between sensitive and tolerant materials. The characteristics evaluated in this experiment did not allow a conclusive distinction between tolerant and sensitive genotypes.

RESUMO - Objetivou-se com o trabalho determinar o período anterior à interferência (PAI), período total de prevenção à interferência (PTPI) e período crítico de prevenção à interferência (PCPI) das plantas daninhas na cultura do sorgo sacarino, cultivar BRS 506. O trabalho foi conduzido na Fazenda Experimental da Embrapa Milho e Sorgo, em Nova Porteirinha, MG. Os tratamentos foram constituídos pela combinação de dois espaçamentos entre linhas do sorgo (0,50 e 0,70 m) e dez períodos de controle ou de convivência das plantas daninhas com a cultura (0, 7, 14, 21, 28, 35, 42, 49, 56 e 120 dias após a emergência). O PAI foi de 19 e 24 DAE para o espaçamento 0,5 m e 0,7 m, respectivamente. O PTPI para produtividade de massa verde total foi 17 e 10 DAE para os espaçamentos de 0,5 m e 0,7 m, respectivamente. Não houve PTPI para os demais parâmetros. Não houve PCPI para nenhum dos parâmetros avaliados (PAI > PTPI).Palavras-chave: Sorghum bicolor, competição, períodos de interferência, BRS 506, PAI, PTPI.WEED INTERFERENCE IN SWEET SORGHUM SOWED IN DIFFERENT SPACINGS IN MINAS GERAIS SEMI-ARID CONDITIONSABSTRACT - The objectives of this work were to determine the period before weed interference (PBWI), the total period of weed interference (TPWI) and the critical period of weed interference (CPWI) for the BRS 506 sweet sorghum cultivar. The experiment was conducted at the experimental farm of Embrapa Milho e Sorgo at Nova Porteirinha, MG. The treatments were a combination of two sorghum row spacings (0.50 and 0.70 m) and ten periods of weeds coexisting with the crop ( 0, 7, 14, 21, 28, 35, 42, 49, 56 and 120 days after emergence, DAE). The PBWI was 19 and 24 DAE for 0.5 m and 0.7 m spacings, respectively. The TPWI for total green mass productivity was 17 and 10 DAE for 0.5 m and 0.7 m spacings, respectively. There was no TPWI for the other parameters. There was no CPWI for any of the evaluated parameters (PBWI > TPWI).Keywords: Sorghum bicolor, competition, interference periods, BRS 506, PBWI, TPWI.

Objetivou-se com o presente trabalho avaliar a produtividade e qualidade do caldo de cultivares de sorgo sacarino em diferentes espacamentos e densidades de plantas. Foram instalados experimentos em tres localidades do Estado de Minas. Em cada local, o experimento foi conduzido conforme o delineamento experimental em blocos casualizados, em esquema fatorial 2 x 4 x 4, com quatro repeticoes, sendo dois genotipos cultivados em quatro densidades de semeaduras e em quatro espacamentos entre fileiras. A parcela experimental foi constituida de quatro fileiras de cinco metros de comprimento sendo as duas centrais consideradas uteis. Foram analisadas altura das plantas, a produtividade de materia verde, produtividade do caldo e o Brix do caldo. A localidade afeta a produtividade de materia verde, produtividade de caldo e o o Brix do sorgo sacarino independente do arranjo de plantas. A reducao do espacamento provoca maior produtividade de materia verde e caldo em funcao do local de cultivo e reduz os teores de o Brix independentemente da localidade. O aumento da populacao provoca maior produtividade de materia verde e caldo nas duas cultivares estudadas. A cultivar BRS 507 apresenta melhor desempenho na maioria dos locais avaliados.

O trabalho foi desenvolvido com o objetivo de avaliar o consorcio de gramineas forrageiras com o sorgo granifero em duas localidades do estado de Minas Gerais. Foram instalados dois experimentos nas fazendas experimentais da Epamig localizadas nos municipios de Leme do Prado e Jaiba. O delineamento adotado foi em blocos casualizados, com quatro repeticoes. O rendimento de graos, a altura de plantas e a producao de massa de forragem foram influenciados pelo local de cultivo. Maiores producoes de massa de forragem seca foram obtidas no consorcio de sorgo com Panicum maximum em ambas as localidades. O sorgo solteiro apresenta maior rendimento de graos em ambas as localidades. O consorcio do sorgo com a Brachiaria decumbens e do sorgo com Andropogon gayanus apresentam maiores produtividades de graos para as localidades de Jaiba e Leme do Prado, respectivamente.

The objective of this study was to evaluate the productivity and quality of the juice of sweet sorghumcultivars at different row spacings and plant densities. Experiments were carried out in three localities of Minas GeraisState, Brazil. In each site the trial was conducted in a randomized complete block design, in a factorial 2 x 4 x 4 scheme,with four replications, comprising two genotypes (BRS 506 and BRS 507), four plant densities (100, 140, 180 and 220thousand plants ha-1), four row spacings (50, 70, 90 and 110 cm) and three locations in the State of Minas Gerais (NovaPorteirinha, Leme do Prado and Jaíba). Plant height, productivity of green matter, juice yield and Brix of the juicewere analyzed. The increase in population provided higher productivity of green matter and juice in the two cultivars.The location affected the green matter productivity, juice productivity and Brix of sweet sorghum, independent ofplant arrangement. Reduction of row spacing caused higher productivity of fresh mass and juice mass as a function oflocation.

RESUMO O objetivo deste trabalho foi determinar em campo a tensao de agua do solo adequada para o reinicio da irrigacao do milho verde no semiarido. O experimento constou de seis valores de tensao matricial da agua do solo (20 kPa, 40 kPa, 60 kPa, 80 kPa, 100 kPa e 120 kPa) testadas em uma cultivar de milho, o hibrido duplo AG 1051. O experimento foi instalado no periodo de inverno de 2013, nos meses de agosto a novembro, num delineamento experimental de blocos casualizados (DBC), com quatro repeticoes, conduzidos na fazenda experimental da Embrapa Milho e Sorgo em Nova Porteirinha, MG. Foram avaliadas as variaveis: produtividade de espigas sem palha (t ha-1), numero de espigas totais e comerciais por hectare, comprimento de espigas com palha e sem palha e diâmetro de espigas comerciais. Dentre os resultados pode-se constatar que os maiores valores para as variaveis de morfologia e de produtividade foram obtidos quando a irrigacao foi efetuada com tensao proxima de 50 kPa, tornando-a a tensao mais adequada para o uso racional da agua no manejo da irrigacao do milho verde. Palavras-chave: Zea mays L., deficit hidrico, manejo da irrigacao, resistencia eletrica. SOIL WATER TENSION FOR REWATERING GREEN CORN IN THE SEMIARID ABSTRACT _ The objective of this work was to determine the adequate water tension for rewatering green corn at field conditions in the semiarid. The experiment consisted of six values of matric soil water tension (20 kPa, 40 kPa, 60 kPa, 80 kPa, 100 kPa and 120 kPa) and one maize cultivar, the double hybrid AG1051. The experiment was installed in the 2013 winter season, from August to November, in a randomized blocks design (DBC), with four replicates, and conducted at the experimental farm belonging to Embrapa Maize and Sorghum in Nova Porteirinha, MG. Morphological parameters were evaluated such as plant height, leaf area index and dry mass, and also the yield parameters such as weight of spikes with straw and without straw (t ha-1), number of total and commercial spikes per hectare, diameter of commercial spikes and length of commercial spikes with and without straw. The highest values for the morphology and productivity variables were obtained when irrigation was carried out with a tension close to 50 kPa, which proved to be the most suitable tension for the rational use of water in the irrigation management of green corn. Keywords: Zea mays L., water deficit, irrigation management, electrical resistance.

Selection of tolerant plants is essential to meet the challenges of food production. The objective of this study was to evaluate agronomic and physiological characteristics as indicators for the selection of water restriction-tolerant grain sorghum genotypes. The experiments were conducted in 2014, 2015 and 2016. Two trials were installed in each year, one subjected to full irrigation and the other to water restriction. In the first one, irrigation was performed periodically, at a 2-day interval, to maintain soil moisture close to field capacity. In the second one, irrigation was suspended in the pre-flowering period, keeping the restriction for 30 days. Four sorghum genotypes were used: 9503062 and 9618158 - drought sensitive (S); 9910032 and P898012 - drought tolerant (T). The experimental design was randomized blocks with four replicates. Stomatal conductance, relative chlorophyll content, photosynthetically active leaf area, plant height and yield were evaluated. Joint analysis of the experiments subjected to full irrigation and water restriction of the three years was performed. Under water restriction it was not possible to distinguish between sensitive and tolerant materials. The characteristics evaluated in this experiment did not allow a conclusive distinction between tolerant and sensitive genotypes. Made available in DSpace on 2020-08-24T04:11:52Z (GMT). No. of bitstreams: 1 Agronomic-physiological.pdf: 684693 bytes, checksum: ded501d7d6f865c92d99119df48c90d4 (MD5) Previous issue date: 2020

O objetivo deste trabalho foi determinar em campo a tensão de água do solo adequada para o reinício da irrigação do milho verde no semiárido. O experimento constou de seis valores de tensão matricial da água do solo (20 kPa, 40 kPa, 60 kPa, 80 kPa, 100 kPa e 120 kPa) testadas em uma cultivar de milho, o hibrido duplo AG 1051. O experimento foi instalado no período de inverno de 2013, nos meses de agosto a novembro, num delineamento experimental de blocos casualizados (DBC), com quatro repetições, conduzidos na fazenda experimental da Embrapa Milho e Sorgo em Nova Porteirinha, MG. Foram avaliadas as variáveis: produtividade de espigas sem palha (t ha-1), número de espigas totais e comerciais por hectare, comprimento de espigas com palha e sem palha e diâmetro de espigas comerciais. Dentre os resultados pode-se constatar que os maiores valores para as variáveis de morfologia e de produtividade foram obtidos quando a irrigação foi efetuada com tensão próxima de 50 kPa, tornando-a a tensão mais adequada para o uso racional da água no manejo da irrigação do milho verde. Made available in DSpace on 2018-09-29T00:36:13Z (GMT). No. of bitstreams: 1 Tensaoagua.pdf: 392060 bytes, checksum: 76708a0286a1de88675d2bce02c4148c (MD5) Previous issue date: 2018-09-28