313 results on '"Carlos Roberto, Martins"'
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2. FENEIS - RS E A PASSEATA DE 1999
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AUGUSTO SCHALLENBERGER, CARLOS ROBERTO MARTINS, MARIA CRISTINA VIANA LAGUNA, and EMANUELLE PLOTZKY DE CASTRO
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passeata de 1999. ,Special aspects of education ,LC8-6691 ,Vocational rehabilitation. Employment of people with disabilities ,HD7255-7256 - Abstract
O presente texto apresenta nossa história como diretores (gestão 2016 a 2020) da Feneis - Federação Nacional de Educação e Integração de Surdos, escritório Rio Grande do Sul. No contexto, baseando-se pelo início da constituição da Feneis, no Rio de Janeiro (1987), e da Feneis - RS (1997), destacamos a importância da Feneis nos movimentos da Comunidade Surda. A Federação teve participação importante na passeata de 1999, em que um grupo de surdos entregou o documento intitulado "A educação que nós surdos queremos". Tal documento apresenta diretrizes educacionais na proposta de educação bilíngue para surdos. A passeata tornou-se uma marco histórico e elevou a viisibilidade da Feneis diante do governo na época. A oportunidade de escrita sobre os acontecimentos da época e os acontecimentos atuais nos possibilitaram apresentar nossas histórias que, de alguma forma, nos fortaleceram e nos tornaram o que somos hoje, mais sensíveis, mais humanos, mais empáticos aos surdos de nosso estado. Sentimo-nos honrados de ser e fazer parte desta história.
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- 2024
3. Tree thinning affects the physicochemical characteristics and bioactive compounds in ‘Barton’ and ‘Melhorada’ pecan cultivars
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Jessica Fernanda Hoffmann, Rosane Lopes Crizel, Tatiane Jéssica Siebeneichler, Stefany Cristina Foscarini, Tamires de Oliveira Duarte da Silva, Cristiano Dietrich Ferreira, Ivan Ricardo Carvalho, Cristiano Geremias Hellwig, and Carlos Roberto Martins
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Carya illinoinensis ,luminosity ,post-harvest quality ,bioactive compounds. ,Agriculture (General) ,S1-972 - Abstract
ABSTRACT The production and consumption of pecan nuts have been on the rise in recent times, which renders it necessary to study the best production practices to increase the yield, enhance the flavor, and maintain the bioactive components in the final product. The present study, therefore, aimed to verify the effects of tree thinning on the physicochemical characteristics and bioactive components in pecan under the cultivation conditions of Santa Rosa, Rio Grande do Sul. The pecan plants were submitted to two types of management - with thinning and without thinning, following which the fruits were evaluated for physical (size, weight, and color) and chemical (physicochemical composition, oxidative stability, fatty acid profile, and tocopherols) attributes. The results revealed that the thinning of plants increased the size and mass of both nuts and kernels while reducing the acid content and peroxides in the kernels and increasing the γ-tocopherol levels. The other quality evaluations did not reveal any significant alterations after plant thinning.
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- 2024
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4. Assessment of the production costs and economic viability of pecan nut production: Assessment of a case in Rio Grande do Sul, Brazil
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Márcia Schuch Borges, Mario Duarte Canever, Carlos Roberto Martins, and Augusto Hauber Gameiro
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Carya illinoinensis ,Pecan ,Pecan farming ,economic viability ,diversification ,Agriculture ,Agriculture (General) ,S1-972 - Abstract
ABSTRACT: The production of pecan [Carya illinoinensis (Wangenh.) K. Koch] is increasing in Brazil, especially in the Rio Grande do Sul, which accounts for approximately 70% of the country’s production. The importance of pecan farming for the state, particularly for the southern half, which is characterized by extensive livestock farming and the monoculture of rice and soybeans, is related both to the possibility of increasing diversification and to the aggregation of extra income in rural areas. In this context, this research estimated the production costs and economic viability of a small family property, which is the common scale of pecan production in the Rio Grande do Sul. The production costs were collected from a real farm for a 7-year period, and then projected until the 30th year. All the monetary values were updated for June 2022, and the production cost methodology determined by the Companhia Nacional de Abastecimento (CONAB) was adopted. The results showed that the enterprise was not economically viable over a 30-year horizon. However, with a 23.62% increase in average productivity or a 21.51% increase in the real selling price, the enterprise reaches the break-even point in the analyzed period.
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- 2024
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5. Genetic variability in pecan genotypes in Brazil
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Rafaela Schmidt de Souza, Carlos Roberto Martins, Caroline Marques Castro, Natércia Lobato Pinheiro Lima, and Paulo Celso de Mello-Farias
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Carya illinoinensis ,molecular markers ,microsatellites ,Agriculture (General) ,S1-972 ,Biotechnology ,TP248.13-248.65 - Abstract
ABSTRACT Pecan crops has been expanding in recent years, mainly in southern Brazil. Genotypes that compose Brazilian orchards come from the USA and from selections of plants made by Brazilian producers. This study aimed to characterize with microsatellite markers pecan cultivars registered for cultivation in Brazil, including some selections made in the country. It is important to know the genetic variability of the pecan tree, as it facilitates the identification of possible phytotechnical deficiencies due to the genetic similarity between the plants, in addition to helping in the conservation of the species, among other. Thirty-four, out of forty collected accessions, were genotyped with 11 selected SSR (Simple Sequence Repeats) loci. Twenty-four polymorphic alleles were identified. The genetic similarity matrix, based on the Jaccard coefficient, ranged from 0.125 to 1.0; general mean of similarity was 0.46. The cluster analysis, which was carried out by the Unweighted Pair Group Method with Arithmetic Mean (UPGMA), classified pecan accessions into four main groups. Results showed that there is high genetic variability in germplasm evaluated, although some accessions may be duplicates.
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- 2023
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6. Eco-friendly fungicide based on chitosan and pecan nut oil: development and evaluation in anthracnose control
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Gabriela Xavier Giacomini, Glaucia de Figueiredo Nachtigal, Carlos Roberto Martins, Adriane Roedel Hirdes, Ricardo Alexandre Valgas, and Aline Joana Rolina Wohlmuth Alves dos Santos
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Colletotrichum gloeosporioides ,guava tree ,in vitro ,antimicrobial ,biological activity. ,Biology (General) ,QH301-705.5 ,Microbiology ,QR1-502 - Abstract
Industrial processing of pecan nuts results in edible oil – with fractions of fatty acids, polyphenols and phytosterols - that may be used for managing phytopathogens. Besides, chitosan may interfere with pathogen development directly and/or activate mechanisms of defense in plant tissues. This study aimed at developing a novel, natural and eco-friendly fungicide based on pecan nut oil immobilized in chitosan and at evaluating its activity against Colletotrichum gloeosporioides, an agent of anthracnose in guava trees and other fruit trees. Changes in the immobilized material exhibited at bands were identified by infrared spectroscopy. Additionally, micrographs by scanning electron microscopy (SEM) showed efficient changes in the immobilized material, by comparison with the polymer chitosan. Decreases in Colletotrichum gloeosporioides sporulation in vitro were 37% in the case of pecan nut oil immobilized in chitosan (IO) and 39% in the case of non-immobilized pecan nut oil (NIO). These results are positive because this fungus produces a large number of spores which may disseminate and survive on surfaces of plant tissues infected by anthracnose. Immobilization of pecan oil in chitosan showed benefits in the synthesis of a novel, stable and eco-friendly material which may be applied to guava trees to control anthracnose.
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- 2023
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7. Lip carcinoma mimicking keratoacanthoma: case reports
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Luciano Henrique Ferreira LIMA, Ana Paula Cota VIANA, Giovanna Ribeiro SOUTO, Soraya de Mattos Camargo GROSSMANN, Carlos Roberto MARTINS, and Hermínia Marques CAPISTRANO
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Carcinoma, squamous cell ,Diagnosis, differential ,Lip ,Dentistry ,RK1-715 - Abstract
ABSTRACT Oral amyloidosis is a disease characterized by extracellular and irreversible deposition of amorphous and fibrillar proteins in the oral cavity, being strongly associated with Multiple Myeloma. The objective of this study is to report a case of a 62-year-old woman diagnosed with Multiple Myeloma who, approximately 2 years after starting treatment for the underlying disease, presented a lesion on the lateral border of the tongue with exophytic growth, pinkish color, vascularized, painless, measuring 3cm in its largest diameter. After histopathological analysis through incisional biopsy, a final diagnosis of amyloidosis was obtained. As a local treatment, we opted for complete excision of the lesion. The patient evolved to death due to Multiple Myeloma influenced by the diagnosis of systemic amyloidosis. Oral amyloidosis is usually associated with the systemic presentation of the disease, making it necessary to conduct a thorough investigation of other organs. Its diagnosis is important since the prognosis is directly related and can negatively influence survival rates and treatment of the underlying disease.
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- 2022
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8. Root pruning of pecan rootstocks in different containers
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Guilherme Ferreira da Silva, Carlos Roberto Martins, Caroline Farias Barreto, Cristiano Geremias Hellwig, and Paulo Celso Mello-Farias
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Carya illinoinensis ,rootstock production ,radicular system ,Plant culture ,SB1-1110 - Abstract
Abstract Quality pecan rootstocks that ensure genetic and phytosanitary safety, besides having good vegetative development, are extremely important to implant a successful orchard. Rootstocks with vigorous radicular systems affect plant growth. This study aimed at evaluating rootstock growth as the result of root pruning and the use of different containers to grow pecan rootstocks in an organic system. The experiment was conducted with “Barton” rootstocks in the experimental area at the Embrapa Clima Temperado in Pelotas, RS, Brazil, in 2018, 2019 and 2020. Rootstocks were evaluated in plastic bags and tubes and in the soil, associated with root pruning. Evaluation 280 and 480 days after transplant comprised the following: height of the aerial part, length of primary and secondary radicular systems, stem diameter, leaf area, dry mass of the aerial part, dry mass of the radicular system, dry mass of secondary roots and the Dickson Quality Index. The use of plastic bags to produce pecan rootstocks was found to coil roots at the bottom of the container. Neither containers nor root pruning affected stem diameter, an important parameter to carry out grafting. Pecan rootstocks with a non-pruned radicular system grown in plastic bags developed large main root and aerial part. Pruning of pecan radicular systems in containers and in the soil leads to increase in the number of main roots but decreases root length.
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- 2022
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9. Syncope in Patients with Cardiac Pacemakers
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Eduardo Arrais Rocha, Gisele Schineider Cunha, Aline Bezerra Tavares, Antônio Brazil Viana Júnior, Ana Rosa Pinto Quidute, Francisca Tatiana Moreira Pereira, Marcelo de Paula Martins Monteiro, Maria Eduarda Quidute Arrais Rocha, Camila Rabelo Ferreira Gomes, and Carlos Roberto Martins Rodrigues Sobrinho
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Syncope ,Pacemaker, Artificial ,Cardiac Conduction System Disease ,Surveys and Questionnaires ,Attention ,Surgery ,RD1-811 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Abstract Introduction: It is challenging to diagnose syncope in patients with pacemakers. Because these patients have increased morbidity and mortality risks, they require immediate attention to determine the causes in order to provide appropriate treatment. This study aimed to investigate the causes and predictive factors of syncope as well as the methods used to diagnose syncope in cardiac pacemaker patients. Methods: Patients with pacemakers implanted owing to sinus node disease or atrioventricular block were evaluated with standardized questionnaires, endocavitary electrograms, and other tests based on the suspected causes of syncope. Mann-Whitney U tests were used to analyze continuous variables and Chi-squared or Fisher’s exact tests were used for categorical variables. Logistic regression was used for multivariate analyses. Statistical significance was P
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- 2020
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10. Application time of chemical thinning with metamitron in ‘Sensação’ peach trees
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Roseli de Mello Farias, Caroline Farias Barreto, Renan Ricardo Zandoná, Carlos Roberto Martins, and Paulo Celso de Mello-Farias
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Prunus persica ,fruit set ,fruit abscission ,manual thinning. ,Agriculture (General) ,S1-972 ,Biotechnology ,TP248.13-248.65 - Abstract
ABSTRACT Thinning is a cultural practice that leads to balance between fruit yield and quality. It is carried out in a short period of time and requires qualified workforce, whose shortage ends up increasing costs. This study aimed at evaluating the thinning effect of metamitron on peach trees at different periods of time after bloom. The experiment was carried out in a commercial orchard of ‘Sensação’ peach trees located in Morro Redondo, Rio Grande do Sul (RS) state, Brazil, in 2015-2016 crops. Treatments were the application of 200 mg L-1 metamitron, 20, 30, 40, 50 and 60 days after full bloom (DAFB), and manual thinning 40 DAFB. Fruit abscission, effective fructification, period of manual and chemical thinning, number of fruits and yield per plant, mean fruit mass and fruit caliber were evaluated. When metamitron was applied 40 DAFB, percentages of fruit abscission and fruit set, besides the number of fruits, were similar to the ones found when manual thinning was carried out. The intensity of the thinning effect of metamitron in peach trees depends on the application period.
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- 2020
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11. Ciclo de desenvolvimento da nogueira-pecã – Escala fenológica
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Rudinei De Marco, Carlos Roberto Martins, Flavio Gilberto Herter, Claudia Farela Ribeiro Crosa, and Gilmar Antônio Nava
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Pecan ,Carya illinoinensis ,Escala BBCH ,Fenologia ,Agriculture ,Agriculture (General) ,S1-972 ,Veterinary medicine ,SF600-1100 - Abstract
O conhecimento da fenologia permite identificar o momento fisiológico ao qual se encontram associadas as necessidades do vegetal que, uma vez atendidas, possibilitarão definir períodos propícios para a realização dos tratos culturais e de manejo. Nesse contexto, o objetivo desse trabalho foi descrever a escala BBCH para nogueira-pecã, de forma a padronizar os estudos realizados sobre o tema e auxiliar no reconhecimento dos principais estádios fenológicos da espécie no Rio Grande do Sul – Brasil e Uruguai. Para a descrição da escala fenológica utilizou-se diferentes cultivares para representar a média de cada estádio fenológico da cultura em dois locais e em dois ciclos. Com base na escala BBCH original, foi descrito a escala fenológica para nogueira-pecã totalizando 34 estádios que permitem identificar as principais fases do desenvolvimento, através de uma abordagem precisa e simplificada. Essa escala permite, através da codificação utilizada, padronizar e uniformizar os estudos sobre a cultura.
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- 2021
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12. Carbohydrate content in branches and abscission of fruit of peach trees subjected to chemical thinning
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Caroline Farias Barreto, Roseli de Mello Farias, Renata Diane Menegatti, Renan Ricardo Zandoná, Carlos Roberto Martins, Marcelo Barbosa Malgarim, and Paulo Mello-Farias
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Prunus persica ,blooming ,fruit quality ,metamitron ,number of fruit ,Agriculture (General) ,S1-972 - Abstract
Abstract The objective of this work was to evaluate the effect of chemical thinning with metamitron on fruit of the Maciel and Sensação peach (Prunus persica) tree cultivars, as well as to identify its relation to the carbohydrate content in their branches. The experimental design was randomized complete blocks, and the treatments were trees with no thinning, manual fruit thinning, and chemical thinning with 200 mg L-1 metamitron applied at 20, 40, and 60 days after full blooming. The evaluated variables were: abscission percentage, yield per plant, number of fruit, presence of lignin in fruit, and carbohydrate content in the branches. The carbohydrate content was evaluated in trees with and without chemical thinning seven days after the application of the product. The use of metamitron promotes fruit thinning in the ‘Maciel’ and ‘Sensação’ peach trees, with a decrease in the carbohydrate content in their branches. Metamitron application 20 and 40 days after full blooming favors fruit abscission in both studied cultivars.
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- 2021
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13. Produção orgânica de frutas
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Carlos Roberto Martins and Roseli de Mello Farias
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Agricultura orgãnica ,agroecologia ,Agriculture (General) ,S1-972 - Published
- 2021
14. Dormência vegetativa da nogueira-pecã – Uma revisão
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Claudia Farela Ribeiro Crosa, Rudinei De Marco, Rafaela Schmidt de Souza, and Carlos Roberto Martins
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Pecan ,Carya illinoinensis ,dormência ,horas de frio ,requerimento de frio ,Agriculture (General) ,S1-972 - Abstract
A nogueira-pecã é uma frutífera que necessita de baixas temperaturas no período hibernal para que possa induzir e superar a dormência, restabelecendo assim um novo ciclo de desenvolvimento produtivo. Através desta revisão, o produtor poderá ter informações confiáveis da exigência climática da cultura, a fim de respaldar sua tomada de decisão sobre práticas de gestão que reduzam os danos causados por esses fenômenos e sirvam para otimizar o sistema de produção, melhorando seus lucros. Em vista disso, torna-se propício adaptar informações sobre a cultura com foco na exigência em frio hibernal necessária para a superação da dormência dos cultivares de nogueira-pecã. Pôde-se constatar a divergência entre os autores em relação à necessidade de frio para a nogueira-pecã, bem como a necessidade de mais trabalhos no que se refere aos produtos utilizados para induzir a brotação na nogueira-pecã.
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- 2021
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15. Alternative budburst inducers for kiwifruit vines grown in an organic system
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Léo Omar Duarte Marques, Paulo Mello-Farias, Rodrigo Fernandes dos Santos, Carlos Roberto Martins, Luis Henrique Konzen, and Marcelo Barbosa Malgarim
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Actinidia deliciosa ,dormancy ,sustainability ,phenology ,fruit growing ,Plant culture ,SB1-1110 - Abstract
Abstract Lack of budburst inducers is a major problem in organic production of temperate fruits. This study aimed at evaluating the effect of alternative budburst inducers on kiwifruit vines of cultivar Bruno grown in an orchard in Pelotas, Rio Grande do Sul (RS), Brazil. Inducers efficiency was investigated in both 2016-2017 and 2017-2018 seasons. The first season comprised of ten treatments, which used garlic extract at different concentrations, both, associated with and without mineral oil; Welsh onion extract at different concentrations, both associated with and without mineral oil; just mineral oil; and control (no application). In the second season, evaluation was carried out ith treatments that performed well in the first season, garlic extract atdifferent concentrations associated with mineral oil, just mineral oil and control. The followingvariables were evaluated: budburst percentage, phenology (budburst and flowering), fruit set, number of fruit/plant, fruit mass/ plant, estimate production, mean mass, fruit length and diameter. Results showed that 10% garlic extract + 2% mineral oil induced the highest budburst percentages in both seasons; the position of buds on branches influences budburst; apical buds exhibit the highest budburst percentage; 15% garlic extract causes phytotoxicity to buds; and Welsh onion extract is inefficient to induce budburst.
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- 2021
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16. Ansiedade cardíaca: uma análise em ambulatórios cardiológicos subespecializados
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Patricia Helena Alves Maciel, Ricardo Pereira Silva, Carlos Roberto Martins Rodrigues Sobrinho, Antônio Reis Sá Júnior, Leticia Marinho Pontes, and Brena Ferreira dos Santos
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Ansiedade ,Psicometria ,Instituições de assistência ambulatorial ,Cardiologia ,Medicine ,Medicine (General) ,R5-920 - Abstract
Objetivos: a condição clínica ansiedade cardíaca é o medo de sensações relacionadas ao coração por consequências negativas dos eventos cardíacos. O Questionário de Ansiedade Cardíaca (QAC) é uma ferramenta internacionalmente utilizada no rastreamento dessa ansiedade. Este artigo objetiva verificar as propriedades psicométricas da versão brasileira do instrumento QAC. Metodologia: o QAC foi aplicado em amostra de 239 pacientes distribuídos entre cinco ambulatórios de cardiologia (arritmia, hipertensão, miocardiopatia, doença coronariana e valvulopatia) para avaliação da confiabilidade e extração fatorial da amostra total e para a Análise Fatorial Multigrupo entre esses ambulatórios. Resultados: os resultados indicam que o QAC apresenta boa consistência interna (Alfa de Cronbach = 0,79) e quando da realização da análise fatorial, o modelo com quatro fatores mostrou ser o mais adequado, com uma explicação de 54,9% da variância total no geral. A estrutura fatorial do QAC apresentou a mesma importância para o construto de ansiedade cardíaca, independente do ambulatório. Ao comparar as médias fatoriais entre os ambulatórios, houve diferenças significativas apenas no fator evitação. Conclusão: Os resultados comprovam a utilidade da escala QAC para uso no contexto ambulatorial brasileiro, sendo fundamental para o desenvolvimento de estratégias de rastreio da ansiedade cardíaca, bem como para propostas de intervenções baseadas nessas medidas.
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- 2019
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17. Influência da radiação ultravioleta e aditivos na conservação de kiwis minimamente processados
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Caroline Farias Barreto, Renan Navroski, Léo Omar Duarte Marques, Rodrigo Fernandes dos Santos, Marcelo Barbosa Malgarim, and Carlos Roberto Martins
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Actinidia deliciosa ,Armazenamento ,UV-C ,Isoascorbato ,Acído cítrico ,Qualidade ,Nutrition. Foods and food supply ,TX341-641 - Abstract
Resumo Kiwis minimamente processados necessitam de técnicas para manter a qualidade dos frutos durante a conservação e o período de prateleira. Aditivos combinados à radiação ultravioleta podem ser uma alternativa para assegurar a qualidade das frutas por mais tempo de conservação. Neste contexto, foi proposto avaliar a eficiência do uso da radiação UV-C e diferentes aditivos na prevenção do escurecimento e conservação de kiwis ‘Bruno’ minimamente processados. As fatias de kiwi foram submetidas a soluções contendo os seguintes tratamentos: controle, ácido ascórbico a 1%; isoascorbato de sódio a 1%; ácido cítrico a 1%, depois, utilizou-se por dois minutos a radiação UV-C na intensidade de 2,71 kJ m-2. As bandejas foram armazenadas em câmara fria a 4 ± 1 ºC de temperatura, com umidade relativa de 85% a 90%, e armazenadas por períodos de 3, 6 e 9 dias. Avaliaram-se perda de massa, coloração da polpa, sólidos solúveis, acidez titulável, incidência de podridão, compostos fenólicos totais e atividade antioxidante. O uso de aditivos melhora a conservação do kiwi minimamente processado, com destaque para o isoascorbato de sódio e o ácido cítrico. Os frutos de kiwi da cultivar ‘Bruno’ podem ser armazenados por até 6 dias sob refrigeração com o uso de aditivos. Após esse período, a perda de massa é elevada. O uso de UV-C não alterou a qualidade dos kiwis durante o armazenamento, podendo ter seu uso dispensado.
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- 2021
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18. Comparison among chemical thinners applied to ‘Maciel’ and ‘Sensação’ peach trees
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Roseli de Mello Farias, Caroline Farias Barreto, Renan Ricardo Zandoná, Carlos Roberto Martins, Paulo Celso de Mello Farias, and Marcelo Barbosa Malgarim
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Abscission. ,Prunus persica. ,Benzyladenine. ,Metamitron. ,Ethephon. ,Production. ,Agriculture ,Biology (General) ,QH301-705.5 - Abstract
Peach tree thinning, which aims at reducing plant load so as to ensure productivity and fruit quality, has been manually carried out within a short period of time in the stage of fruit development. Due to the need and shortage of qualified man power, chemical thinning is one of the alternatives that can solve these difficulties found in manual thinning. This study aimed at evaluating the effect of different products which have been applied – either alone or in combination – to fruit thinning of peach tree cultivars ‘Sensação’ and ‘Maciel’ in Pelotas, Rio Grande do Sul (RS) state, Brazil. The experiment was conducted in the 2015/2016 crop in a commercial peach orchard located in Morro Redondo, RS, Brazil. The following seven treatments were carried out 40 days after full bloom (DAFB): plants with no thinning, manual thinning, metamitron, benzyladenine, benzyladenine + metamitron, ethephon, ethephon + metamitron. Fruit abscission, effective fructification, number of fruits and production per plant, mean mass and fruit classification into caliber classes, epidermis color, pulp firmness and soluble solids were evaluated. Production and number of fruits per plant decreased excessively, whereas fruits placed in categories of higher caliber increased when ethephon was either used alone or in combination with metamitron. When both metamitron and benzyladenine were applied, either alone or in combination, they led to fruit abscission and resulted in mean fruit size and weight, at harvest time, similar to those found in manual thinning. Application of chemical products – either alone or in combination – may be an alternative of peach tree thinning in orchard management.
- Published
- 2020
19. Collection period and indolebutyric acid on the rooting of adult pecan plant cuttings
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Márcio Alberto Hilgert, Larissa Campos de Sá, Marília Lazarotto, Paulo Vitor Dutra de Souza, and Carlos Roberto Martins
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Carya illinoinensis ,callus ,clonal propagation ,Agriculture (General) ,S1-972 - Abstract
Abstract: The objective of this work was to evaluate the effect of the collection period and of the exogenous application of indolebutyric acid (IBA) on the rooting of cuttings from adult pecan (Carya illinoinensis) plants. The experiment was carried out in a greenhouse with intermittent mist irrigation, from December 2017 to October 2018. The experimental design was completely randomized, in a 4x5 factorial arrangement, with four collection periods (spring, summer, autumn, and winter) and five concentrations of IBA (0, 2,000, 4,000, 6,000, and 8,000 mg L-1). For the cuttings collected during summer and autumn, there was a linear relationship between rooting and the increase of the IBA concentration. The best results for rooting, callus formation, mean number of roots, mean root length, and root dry and fresh mass are obtained for the cuttings collected during summer, with the application of 8,000 mg L-1 IBA on the base of each cutting, under a mist irrigation system. The rooting of cuttings from adult pecan plants with the application of IBA is possible, being an alternative propagation method for the species.
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- 2020
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20. Tipping off pruning and use of biofertilizer in the growth of pecan trees
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Hélio Lange Junior, Carlos Roberto Martins, Elisane Schwartz, and Marcelo Barbosa Malgarim
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Pecan culture ,Barton cultivar ,Carya illinoinensis ,Management ,Fruit culture ,Plant culture ,SB1-1110 - Abstract
Abstract In Brazil, the cultivation of pecan trees has substantially increased in the last years, thus requiring the development of scientific research and technologies to improve it. Thus, the aim of this study was to evaluate the tipping off effect associated with the use of biofertilizer in the growth of newly implanted plants in their final site. The treatments consisted of : control; application of “supermagro” biofertilizer; tipping off of plants, and tipping off associated with the use of biofertilizer. The variables evaluated were: plant height; plant growth rate; stem thickness; number of leaves, and number of leaves/stem height ratio. In addition, leaf nutrient content analysis was performed. Tipping off and the use of biofertilizer provide greater growth of the plant height and cultivar scion diameter after sprouting. Thus, tipping off associated with biofertilizer can be used in the early phase of the pecan orchard implantation to provide the best plant development.
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- 2020
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21. Metamitron in the chemical thinning of ‘PS 10711’ peach trees
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Roseli de Mello Farias, Caroline Farias Barreto, Renan Ricardo Zandoná, Cristiano Geremias Hellwig, Carlos Roberto Martins, Marcelo Barbosa Malgarim, and Gilmar Arduino Bettio Marodin
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Abscisão de frutos ,Frutíferas de caroço ,Frutificação efetiva ,Produção ,Qualidade dos frutos. ,Agriculture (General) ,S1-972 - Abstract
O raleio químico de frutos pode ser uma prática alternativa ao raleio manual. O raleio manual necessita ser executado num curto período da frutificação, mas a falta de mão de obra e a onerosidade dos custos da operação cada vez mais dificultam o seu emprego no momento adequado e na intensidade ideal. O objetivo desse trabalho foi avaliar o efeito de diferentes concentrações do metamitron como raleante químico nos pessegueiros ‘PS 10711’. O experimento foi realizado durante duas safras num pomar do município de Eldorado do Sul, região da Depressão Central do Rio Grande do Sul, Brasil. Os tratamentos consistiram na aplicação de metamitron nas concentrações de 100 mg L-1, 200 mg L-1, 300 mg L-1 e 400 mg L-1, raleio manual e plantas sem raleio. O raleio químico e manual dos frutos foram realizados aos 40 dias após a plena floração dos pessegueiros. Avaliou-se a abscisão de frutos, frutificação efetiva, número de frutos, produção por planta e a qualidade dos frutos. O metamitron possui efeito raleante em pêssegos da cultivar PS 10711. As concentrações de 100 e 200 mg L-1 de metamitron promove abscisão de frutos inferior ao raleio manual. O efeito raleante do metamitron altera a produção por planta, mas não interfere na qualidade dos frutos.
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- 2020
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22. Performance of the pineapple sweet orange on different rootstocks
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Carlos Roberto Martins, Hélio Wilson Lemos de Carvalho, Adenir Vieira Teodoro, Inácio de Barros, Luciana Marques de Carvalho, Walter dos Santos Soares Filho, and Orlando Sampaio Passos
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citros ,fruticultura ,melhoramento genético ,fitotecnia ,Agriculture ,Biology (General) ,QH301-705.5 - Abstract
This study aimed at evaluating the agronomical performance of ‘Pineapple’ sweet orange grafted on ten rootstocks, in 2011-2017 harvests, so as to recommend the best combinations to be commercially explored in citrus growing regions in Bahia and Sergipe states, Brazil. An experiment was installed to test ten rootstock for 'pineapple' sweet orange: 'Santa Cruz' Rangpur lime, 'Red Rough' Lemon, 'Orlando' Tangelo, 'Sunki Tropical' Mandarin, 'Swingle' citrumelo, the citrandarins 'Indio' and 'Riverside' and the hybrids HTR-051, LVKxLCR-010 and TSKxCTTR-002. The trial was installed in 2008 in the municipality of Umbauba in Sergipe. The experimental design was complete randomized blocks with four replications and two plants per plot. Plant spacing was 6 x 4 m which corresponds to 416 plants per hectare and the orchard was rainfed and followed conventional management. The following agronomical parameters were evaluated: vegetative growth, drought tolerance, yield and physico-chemical quality of fruits as well as the abundance of phytophagous mites. Both hybrids LVK x LCR – 010 and TSKC x CTTR-002 and the ‘Santa Cruz’ rangpur lime bestowed higher tolerance to the dry period on the ‘Pineapple’ orange tree, by comparison with higher water deficit susceptibility conferred by the ‘Orlando’ tangelo and the ‘Swingle’ citrumelo. Rootstocks HTR-051, ‘Riverside’ citrandarin, ‘Swingle’ citrumelo and TSKC x CTTR-02 induced plants to remain small and, thus, showed aptitude for culture densification. Cumulative yield of the ‘Pineapple’ orange was higher on rootstocks ‘Red Rough’ lemon and ‘Santa Cruz’ Rangpur lime, the hybrid LVK x LCR-010 and ‘Sunki Tropical’. Yield efficiency was not influenced by the rootstocks. Physico-chemical quality of fruits of ‘Pineapple’ orange is affected by the rootstocks and meets the requirements of juice industries. Regarding plant resistance, the rootstocks did not influence the population density of mites P. oleivora, E. banksi and T. mexicanus on ‘Pineapple’ oranges. Results show that both rootstocks ‘Red Rough’ lemon and ‘Santa Cruz’ rangpur lime conferred high regularity to ‘Pineapple’ orange trees in citrus growing regions in Bahia and Sergipe states.
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- 2020
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23. SPG11 mutations cause widespread white matter and basal ganglia abnormalities, but restricted cortical damage
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Ingrid Faber, Alberto Rolim Muro Martinez, Thiago Junqueira Ribeiro de Rezende, Carlos Roberto Martins, Jr., Melina Pazian Martins, Charles Marques Lourenço, Wilson Marques, Jr., Celeste Montecchiani, Antonio Orlacchio, Jose Luiz Pedroso, Orlando Graziani Povoas Barsottini, Íscia Lopes-Cendes, and Marcondes Cavalcante França, Jr.
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Computer applications to medicine. Medical informatics ,R858-859.7 ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
SPG11 mutations are the major cause of autosomal recessive Hereditary Spastic Paraplegia. The disease has a wide phenotypic variability indicating many regions of the nervous system besides the corticospinal tract are affected. Despite this, anatomical and phenotypic characterization is restricted. In the present study, we investigate the anatomical abnormalities related to SPG11 mutations and how they relate to clinical and cognitive measures. Moreover, we aim to depict how the disease course influences the regions affected, unraveling different susceptibility of specific neuronal populations. We performed clinical and paraclinical studies encompassing neuropsychological, neuroimaging, and neurophysiological tools in a cohort of twenty-five patients and age matched controls. We assessed cortical thickness (FreeSurfer software), deep grey matter volumes (T1-MultiAtlas tool), white matter microstructural damage (DTI-MultiAtlas) and spinal cord morphometry (Spineseg software) on a 3 T MRI scan. Mean age and disease duration were 29 and 13.2 years respectively. Sixty-four percent of the patients were wheelchair bound while 84% were demented. We were able to unfold a diffuse pattern of white matter integrity loss as well as basal ganglia and spinal cord atrophy. Such findings contrasted with a restricted pattern of cortical thinning (motor, limbic and parietal cortices). Electromyography revealed motor neuronopathy affecting 96% of the probands. Correlations with disease duration pointed towards a progressive degeneration of multiple grey matter structures and spinal cord, but not of the white matter. SPG11-related hereditary spastic paraplegia is characterized by selective neuronal vulnerability, in which a precocious and widespread white matter involvement is later followed by a restricted but clearly progressive grey matter degeneration. Keywords: Complicated hereditary spastic paraplegia, SPG11, Motor neuron disorder, Thinning of the corpus callosum, White matter, Grey matter, Spinal cord
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- 2018
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24. Seasonal variation of pest mite populations in relation to citrus scion cultivars in northeastern Brazil
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Rafael Rocha da Silva, Adenir Vieira Teodoro, Carlos Roberto Martins, Hélio Wilson Lemos de Carvalho, Shênia Santos Silva, Adriano Pimentel Farias, and Elio Cesar Guzzo
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Eutetranychus banksi ,Phyllocoptruta oleivora ,population fluctuation ,Tetranychus mexicanus ,Agriculture - Abstract
Pest populations in a given agroecosystem may be influenced by several abiotic and biotic variables, including the host plant cultivar. We compared the population fluctuation of pest mites in twenty citrus scion cultivars grafted on Rangpur lime (Citrus limonia). Adults of citrus rust mite Phyllocoptruta oleivora (Acari: Eriophyidae), Texas citrus mite Eutetranychus banksi and Tetranychus mexicanus (Acari:Tetranychidae) were monthly counted in each scion cultivar from April 2011 to February 2013 in Sergipe state, northeastern Brazil. Larger E. banksi population peak was recorded on sweet orange ‘Valência Montemorellos’ in February 2012 compared to the other cultivars and larger populations of T. mexicanus were found on sweet orange ‘Lima’ in January 2013 in comparison to acid limes ‘Tahiti IAC 5’ and ‘IAC 5-1’. The population of P. oleivora, however was not different among scion cultivars and varied only with time. Abiotic and biotic variables were important mechanisms underlying such responses. We conclude that the abundances of the mites E. banksi and T. mexicanus were influenced by scion cultivars only in some periods, suggesting putative resistance mechanisms in some genotypes to these pests.
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- 2017
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25. Chemical thinning of 'BRS Kampai' peach trees
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Roseli de Mello Farias, Caroline Farias Barreto, Renan Ricardo Zandoná, Carlos Roberto Martins, Paulo Mello-Farias, and Gilmar Arduino Bettio Marodin
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Prunus persica ,abscission ,fruit quality ,hand thinning ,metamitron ,Agriculture (General) ,S1-972 - Abstract
Abstract: The objective of this work was to evaluate the effect of thinning with metamitron on the fruit yield and quality of 'BRS Kampai' peach (Prunus persica) trees. The experiment was carried out in the municipality of Eldorado do Sul, in the state of Rio Grande do Sul, Brazil, in the 2016 and 2017 crop years. Treatments consisted of the application of 100, 200, 300, and 400 mg L-1 metamitron and of hand thinning 40 days after full bloom, besides control plants. Fruit abscission, effective fructification, number of fruits, and fruit yield per plant were evaluated. Regarding fruit quality, fresh fruit biomass, epidermis color, pulp firmness, soluble solids, total phenolic compounds, and antioxidant activity were assessed; fruits were also classified into diameter classes. For fruit abscission, the effect of the application of 100 mg L-1 metamitron is similar to that of hand thinning. Fruit yield and mean mass in all treatments with metamitron are similar to those obtained by hand thinning. The application of metamitron does not affect the fruit quality of peach trees. Chemical thinning with metamitron may be an alternative to hand thinning in peach trees used for the production of fruits for fresh consumption.
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- 2019
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26. Agronomical performance of 'Piemonte' mandarin grafted on several rootstocks in the Brazilian Coastal Tablelands
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Hélio Wilson Lemos de Carvalho, Carlos Roberto Martins, Adenir Vieira Teodoro, Walter dos Santos Soares Filho, and Orlando Sampaio Passos
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Citrus ,cohesive soils ,fruit quality ,planting density ,phytophagous mites ,yield efficiency ,Agriculture (General) ,S1-972 - Abstract
Abstract The objective of this work was to evaluate the agronomical performance of 'Piemonte' mandarin grafted on 11 rootstocks grown under the edaphoclimatic conditions of the Coastal Tablelands, in the state of Sergipe, Brazil. The following combined agronomical parameters were evaluated: vegetative growth, abundance of phytophagous mites, plant yield, drought tolerance, and physicochemical quality of fruit. 'Piemonte' mandarin had the best productive performance when grafted on 'Santa Cruz Rangpur' lime, 'Red Rough' lemon, 'Sunki Tropical' mandarin, and 'Riverside' citrandarin, and it was more tolerant to drought when grafted on 'Santa Cruz Rangpur' lime and on the LVK x LCR-010 hybrid. Rootstocks did not affect pest population levels. 'Piemonte' mandarin grafted on 'Santa Cruz Rangpur' lime and 'Red Rough' lemon produced lower-quality fruit. The 'Indio' and 'San Diego' citrandarins, the HTR-051 hybrid, and 'Swingle' citrumelo have potential for high-density plantings. 'Sunki Tropical' mandarin and 'Riverside' citrandarin are a good option for the diversification of rootstocks in orchards in the agroecosystem of the Brazilian Coastal Tablelands.
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- 2016
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27. Porta-enxertos promissores, alternativos ao limoeiro 'Cravo', nos Tabuleiros Costeiros de Sergipe
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Luciana Marques de Carvalho, Hélio Wilson Lemos de Carvalho, Walter dos Santos Soares Filho, Carlos Roberto Martins, and Orlando Sampaio Passos
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Citrus ,Poncirus ,deficit hídrico ,híbridos ,prolina. ,Agriculture (General) ,S1-972 - Abstract
Resumo: O objetivo deste trabalho foi identificar porta-enxertos alternativos ao limoeiro 'Cravo' comum, para produção de laranja 'Pêra', nas condições dos Tabuleiros Costeiros de Sergipe. Foram avaliados 43 porta-enxertos quanto a altura, copa, taxa fotossintética, teor de prolina, eficiência produtiva, produção e produtividade por planta. O limoeiro 'Cravo' comum foi considerado como padrão. Os porta-enxertos híbrido TSKC x (LCR x TR) - 059, citrandarim 'Riverside', limoeiro 'Cravo CNPMF - 03' e outros 12 superaram o limoeiro 'Cravo' comum na indução de eficiência produtiva à copa; limoeiro 'Rugoso Vermelho', citrandarim 'Indio' e mais quatro promoveram maior produtividade; TSKC x CTRK - 001 e TSKFL x CTC13 - 012 se destacaram pela magnitude da assimilação de CO2; e TSKC x (LCR x TR) - 040 e TSKC x CTRK - 001 apresentaram maior acúmulo de prolina. São considerados alternativas promissoras os seguintes porta-enxertos: híbrido TSKC x (LCR x TR) - 059; citrandarins 'Indio', 'Riverside' e 'San Diego'; limoeiros 'Rugoso Vermelho' e 'Cravo CNPMF - 03'; e híbridos TSKC x CTRK - 001, TSKFL x CTC13 - 012, TSKC x (LCR x TR) - 040, TSKC x LHA - 006, TSKC x CTQT1434 - 001, TSKC x CTSW - 058 e TSKFL x CTARG - 028.
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- 2016
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28. Citrus rootstocks influence the population densities of pest mites
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Rafael Rocha da Silva, Adenir Vieira Teodoro, Jéssica Fontes Vasconcelos, Carlos Roberto Martins, Walter dos Santos Soares Filho, Hélio Wilson Lemos de Carvalho, and Elio Cesar Guzzo
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ácaro-da-falsa-ferrugem ,Phyllocoptruta oleivora ,flutuação populacional ,Tetranychus mexicanus ,Agriculture ,Agriculture (General) ,S1-972 - Abstract
Citrus are attacked by pest mites such as the citrus rust mite Phyllocoptruta oleivora (Ashmead) (Acari: Eriophyidae) and the spider mite Tetranychus mexicanus (McGregor) (Acari: Tetranychidae). However, little is known on citrus rootstocks influencing pest mites. We aimed to evaluate the influence of rootstocks on population densities of pest mites on the sweet oranges 'Pera CNPMF D-6' and 'Valencia Tuxpan' throughout time. Adults of both mite species were monthly counted during 19 months from June 2011 to February 2013. Rootstocks influenced the populations of pest mites, since lower densities of P. oleivora were found on 'Pera CNPMF D-6' sweet orange grafted on the hybrid TSKC × CTTR - 002 and on 'Swingle' citrumelo in comparison with the hybrid LVK × LCR - 010, 'Red' rough lime and 'Santa Cruz' rangpur lime as rootstocks. Similarly, lower densities of T. mexicanus were found on 'Valencia Tuxpan' sweet orange grafted on the hybrid HTR-051 in comparison to 'Indio' citrandarin, 'Sunki Tropical' mandarin and LVK × LCR - 010 as rootstocks. We concluded that densities of the mites P. oleivora and T. mexicanus on the sweet oranges 'Pera CNPMF D-6' and 'Valencia Tuxpan' were affected in some periods of the year by some rootstocks, suggesting influence of some genotypes on these pests.
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- 2016
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29. Budbreak of pecan cultivars subject to artificial chill
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Claudia Farela Ribeiro Crosa, Rudinei De Marco, Caroline Farias Barreto, Rafaela Schmidt de Souza, Robson Ryu Yamamoto, and Carlos Roberto Martins
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biological method ,dormancy ,General Veterinary ,cold requirements ,nuts ,General Agricultural and Biological Sciences ,Carya illinoinensis - Abstract
Chill is a limiting factor in commercial production of temperate fruit due to their dormancy mechanism. Thus, knowledge of chill requirements of cultivars is important to reach successful production. This study aimed at evaluating responses given by different pecan cultivars subject to artificial chill. Pecan branches were collected from twelve 9-year-old cultivars – Success, Shoshoni, Farley, Elliott, Mohawk, Jackson, Desirable, Barton, Importada, Shawnee, Choctaw and Melhorada – in two orchards located in Canguçu, Rio Grande do Sul (RS) state, Brazil, in 2017 and 2018. Treatments consisted in exposing branches to 0, 250, 500, 750 and 1,000 chill hours in a cold chamber (4.0 ± 0.5 °C) and then taking them to the germination chamber (25 ± 0.5 °C and photoperiod of 16 hours of light) until the end of the evaluations. Final budbreak rate (FBR) of every cultivar and the number of days required to reach 50% of budbreak (DD50%) were evaluated. Chill required by cultivars to start budbreak varied in both years under evaluation. Both FBR and DD50 were higher in 2017 than in 2018. Due to high variation in FBR and DD50, chill requirements of pecan cultivars could not be clearly determined by the biological method.
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- 2023
30. Productivity of pecan nut in the Anta Gorda region in Rio Grande do Sul
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Danielle Galvan Casagranda, Marines Batalha Moreno Kirinus, Carlos Roberto Martins, Eduardo Miranda Ethur, and Marcelo Barbosa Malgarim
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Pecanculture ,Pecanicultura ,Noz-pecã ,General Earth and Planetary Sciences ,Cultivo de pecanas ,Carya illinoinensis ,General Environmental Science ,Nuts - Abstract
The south of Brazil has the largest area cultivated for pecan walnut (Carya illinoinensis). In recent years, the crop has shown considerable potential for planting expansion, increased consumption linked to health benefits, in addition to financial return. This work aimed to study the productivity of pecan trees, in southern Brazil, over six years of production with different varieties, Barton, Pitol 1, Cenci, Pitol 2 and Imperial, planted under free standing, with a spacing of 10 x 10 meters. In order to correlate these varieties with the edaphoclimatic factors of the Anta Gorda region in Rio Grande do Sul. The experimental design in the field was completely randomized blocks, with ten replications, in a bifactorial scheme. Factor A composed of the five pecan tree varieties (Barton, Pitol 1, Cenci, Pitol 2 and Imperial) and factor B composed of the six periods (2012, 2013, 2014, 2015, 2016 and 2017). Barton stood out in five harvests, contrasting with the Pitol 1, Cenci, Pitol 2 and Imperial varieties and within each harvest, with a general average productivity of 24.90 Kg plant-1, standing out in the sixth harvest with an estimated productivity of 4,185 Kg ha-1. Following, the Cenci and Pitol 2 varieties deserve to be highlighted, with average harvest values of 13.12 and 11.8 Kg plant-1, respectively, much higher values than the others. With this study it was observed that Barton, Cenci and Pitol 2 maintained their productivity indexes in the edaphoclimatic conditions of Anta Gorda in Rio Grande do Sul, Brazil. El sur de Brasil tiene la mayor área cultivada de nuez pecana (Carya illinoinensis), que en los últimos años ha mostrado un potencial considerable para la expansión de las plantaciones. Este trabajo tuvo como objetivo estudiar la productividad de los árboles de nogal, en el sur de Brasil, durante seis años de producción con diferentes variedades, Barton, Pitol 1, Cenci, Pitol 2 e Imperial, plantadas bajo pie libre, con un espaciamiento de 10 x 10 metros. Con el fin de correlacionar estas variedades con los factores edafoclimáticos de la región de Anta Gorda en Rio Grande do Sul. El diseño experimental en campo fue bloques completamente al azar, con diez repeticiones, en esquema bifactorial. Factor A compuesto por las cinco variedades de nogales (Barton, Pitol 1, Cenci, Pitol 2 e Imperial) y factor B compuesto por los seis periodos (2012, 2013, 2014, 2015, 2016 y 2017). Barton se destacó en cinco cosechas, contrastando con las variedades Pitol 1, Cenci, Pitol 2 e Imperial y dentro de cada cosecha, con una productividad promedio general de 24,90 Kg planta-1, destacándose en la sexta cosecha con una productividad estimada de 4.185 Kg. ha-1. A continuación, merecen destacarse las variedades Cenci y Pitol 2, con valores medios de cosecha de 13,12 y 11,8 Kg planta-1, respectivamente, valores muy superiores al resto. Con este estudio se observó que Barton, Cenci y Pitol 2 mantuvieron sus índices de productividad en las condiciones edafoclimáticas de Anta Gorda en Rio Grande do Sul, Brasil. O Sul do Brasil tem a maior área cultivada de nogueira pecã (Carya illinoinensis), nos últimos anos, a cultura apresentou um considerável potencial para expansão de plantio, aumento do consumo atrelado aos benefícios à saúde, além do retorno financeiro. Este trabalho objetivou estudar a produtividade da pecaneira, na região sul do Brasil, ao longo de seis anos de produção com diferentes variedades, Barton, Pitol 1, Cenci, Pitol 2 e Imperial, plantadas sob pé franco, com o espaçamento de 10 x 10 metros. A fim de correlacionar estas variedades com os fatores edafoclimáticos da região de Anta Gorda no Rio Grande do Sul. O delineamento experimental a campo foi em blocos completamente casualizados, com dez repetições, em esquema bifatorial. O fator A composto pelas cinco variedades de nogueira pecã (Barton, Pitol 1, Cenci, Pitol 2 e Imperial) e o fator B composto pelos seis períodos (2012, 2013, 2014, 2015, 2016 e 2017). Barton apresentou destaque em cinco safras, contrastando às variedades Pitol 1, Cenci, Pitol 2 e Imperial e dentro de cada safra, com uma produtividade média geral de 24,90 Kg planta-1, destacando-se na sexta safra com produtividade estimada de 4.185 Kg ha-1. Na sequência, merecem destaque as variedades Cenci e Pitol 2, com valores médios das safras de 13,12 e 11,8 Kg planta-1, respectivamente, valores bem superiores as demais. Com este estudo observou-se que a Barton, Cenci e Pitol 2 mantiveram seus índices de produtividade nas condições edafoclimáticas de Anta Gorda no Rio Grande do Sul, Brasil.
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- 2023
31. Metamitron in the chemical thinning of ‘PS 10711’ peach trees
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Renan Ricardo Zandoná, Gilmar Arduino Bettio Marodin, Roseli de Mello Farias, Marcelo Barbosa Malgarim, Cristiano Geremias Hellwig, Caroline Farias Barreto, Carlos Roberto Martins, ROSELI DE MELLO FARIAS, UERGS, CAROLINE FARIAS BARRETO, RENAN RICARDO ZANDONÁ, UFPEL, CRISTIANO GEREMIAS HELLWIG, CARLOS ROBERTO MARTINS, CPACT, MARCELO BARBOSA MALGARIM, UFPEL, and GILMAR ARDUINO BETTIO MARODIN, UFRGS.
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Fruit set ,Horticulture ,genetic structures ,Fruit abscission ,Thinning ,Pêssego ,food and beverages ,sense organs ,Cultivar ,Orchard ,General Agricultural and Biological Sciences ,eye diseases ,Mathematics - Abstract
Chemical thinning of fruits may be an alternative practice to hand thinning. Hand thinning must be performed in a short time during the fruiting stage, but lack of manpower and the onerous costs of the operation make it increasingly difficult to employ it at the right time and at the ideal intensity. The objective of this study was to examine the effect of different concentrations of metamitron as a chemical thinner on ?PS 10711? peach trees. The experiment was carried out during two harvests in an orchard in the municipality of Eldorado do Sul, in the Central Depression region of the state of Rio Grande do Sul, Brazil. Treatments consisted of the application of metamitron at the concentrations of 100, 200, 300 and 400 mg L-1; hand thinning; and no thinning. The fruits were thinned chemically and by hand 40 days after the peach trees were in full bloom. Fruit abscission, fruit set, number of fruits, production per tree and fruit quality were evaluated. Metamitron has a thinning effect on the peaches of cultivar PS 10711. The metamitron concentrations of 100 and 200 mg L-1 result in less fruit abscission as compared with hand thinning. The thinning effect of metamitron alters production per tree, but does not interfere with fruit quality. Made available in DSpace on 2021-03-19T19:33:52Z (GMT). No. of bitstreams: 1 Artigo-Metamitron-in-the-chemical.pdf: 425014 bytes, checksum: 576916f9c52b8fd7f385809d5652c57e (MD5) Previous issue date: 2020
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- 2020
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32. Intermittent temperatures in the conservation of ‘BRS Kampai’ peaches
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Carlos Roberto Martins, Caroline Farias Barreto, Renan Navroski, Marcelo Barbosa Malgarim, Jorge Atílio Benati, and Roseli de Melo Farias
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Prunus persica ,Chemistry ,Pulp (paper) ,Cold storage ,Titratable acid ,General Medicine ,engineering.material ,Horticulture ,Soluble solids ,Skin color ,engineering ,Relative humidity ,Cultivar ,Every Five Days ,Warming - Abstract
The objective of this work was to evaluate the quality of peach fruits of the cultivar BRS Kampai, refrigerated with intermittent temperatures during storage. The fruits were stored at a temperature of 1 ° C, with a relative humidity of 80-90% in a cold chamber. The treatments used were T1: fruits stored at 1 ± 0.5 ° C, T2: fruits stored at 1 ± 0.5 ° C, with heating every five days at 25 ° C, and T3: fruits stored at 1 ± 0.5 ° C, with heating every seven days at 25 ° C. Heating was carried out by removing the fruits from the cold chamber and keeping them in an air-conditioned room. The evaluations were carried out at the time of harvest, at 10 of cold storage plus 2 days of commercial simulation at 25ºC (10 + 2) and at 20 days of cold storage plus 2 days of commercial simulation at 25 ºC (20 + 2). Peaches were evaluated for weight loss, pulp firmness, soluble solids, titratable acidity, pH and skin color. It was observed a greater loss of mass and soluble solids content at T1, as well as greater pulp firmness at 20 days. T2 provided less mass loss compared to other treatments at 20 days. However, there was a greater loss of firmness of the pulp in this treatment in the same period. The use of intermittent temperatures in the storage of BRS Kampai peaches can be an alternative to prolong its post-harvest period. This study aimed at evaluating the quality of peaches borne by the cultivar BRS Kampai when cooled at intermittent temperatures throughout storage. They were stored at 1°C and relative humidity between 80% and 90% in a cold storage chamber. The following treatments were applied: T1 - fruit stored at 1±0.5°C; T2 - fruit stored at 1±0.5°C and increase in temperature every five days to 25°C; and T3 - fruit stored at 1±0.5°C and increase in temperature every seven days to 25°C. Fruit were submitted to increase in temperature when they were withdrawn from the cold storage chamber and kept in a heated room. Evaluations were conducted when fruit were harvested, after 10 cold storage days and 2 days of commercialization simulation at 25ºC (10+2) and after 20 cold storage days and 2 days of commercialization simulation at 25ºC (20+2). Peaches were evaluated in terms of mass loss, pulp firmness, soluble solids, titratable acidity, pH and epidermis color. T1 exhibited higher mass loss, higher soluble solid content and higher pulp firmness after 20 cold storage days, by comparison with the other treatments. T2 led to lower mass loss after 20 cold storage days than the ones of the other treatments. However, T2 also showed higher loss of pulp firmness in the same period. The use of intermittent temperatures throughout storage of ‘BRS Kampai’ peaches may be an alternative to extend their post-harvest period.
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- 2021
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33. Physicochemical characterization of banana fruit by univariate and multivariate procedures
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Ana da Silva Lédo, Tatiana Nascimento Silva, Carlos Roberto Martins, Ana Veruska Cruz da Silva, Carlos Alberto da Silva Lédo, and Edson Perito Amorim
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musa spp. ,cultivars ,hybrids ,Agriculture ,Biology (General) ,QH301-705.5 - Abstract
Breeding genotypes need to be characterized and evaluated in different soil and climatic conditions. There are few studies on association between characters evaluated and their contribution to banana genetic diversity, being essential to guide genetic breeding programs. This study aimed to evaluate the physicochemical characters of banana genotypes, to estimate associations between characters, to determine the relative importance of characters to study on genetic dissimilarity, and to indicate new genotypes to coastal plain region of Sergipe. Fruits from thirteen genotypes were used: Prata (FHIA-18, BRS Platina, PV94-01, BRS Garantida, YB42-47, Pacovan, and Prata Anã), Maçã (BRS Princesa, BRS Tropical, and Maçã), Ibota (Caipira), Gros Michel (Bucaneiro), and Mysore (Thap Maeo). The experimental design was randomized blocks, with thirteen genotypes and three replications. There is physicochemical variability of fruits between genotypes of same genomic group and subgroup, and between hybrids originated from same progenitor. Content of total sugars has greater contribution to genetic diversity among the genotypes, followed by fruit mass and pulp mass, and starch content in two cycles. Associations between fruit length, fruit diameter, and fruit mass and pulp mass in two production cycles based on phenotypic correlation are highly significant. Hybrids FHIA-18, PA94-01, YB42-47, and BRS Tropical, BRS Princesa, and Bucaneiro cultivars are promising for recommendation on coastal plain regions.
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- 2017
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34. Poda de contenção e central em pomar de nogueira-pecã de alta densidade no Sul do Brasil
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Cristiano Geremias Hellwig, Carlos Roberto Martins, Antonio Davi Vaz Lima, Caroline Farias Barreto, Julio Cesar Farias Medeiros, and Marcelo Barbosa Malgarim
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General Agricultural and Biological Sciences - Abstract
This study aimed at evaluating the influence of two pruning methods, as well as absence of pruning, on vegetative and productive development and in the quality of pecan fruits in a high-density orchard. The experiment was conducted with the cultivar Melhorada in a commercial pecan orchard in municipality of Santa Rosa, Rio Grande do Sul (RS), Brazil. The study was carried out between July 2018 and June 2020. In a randomized block design, the following treatments were applied: no pruning, hedge pruning and central pruning. Hedge pruning increased limb growth, while central pruning decreased the number of dry branches. Fruit production oscillated in the cycles. In the first, production was higher when central pruning was conducted. In the second cycle, it was higher in unpruned trees. Even though both pruning methods decreased the number of fruit with closed epicarps, they did not affect most variables of fruit quality. Therefore, results show that pruning methods promote vegetative development of pecan trees, reducing dry branches, but they are inconclusive regarding their production and have no significant effect on the main variables of their fruit quality. The evaluation and continuity of pruning for more cycles is important to obtain the most consistent results for indicating the best alternative for producers., O objetivo deste trabalho foi avaliar a influência de dois métodos de poda e a ausência desta no desenvolvimento vegetativo e produtivo e na qualidade dos frutos de noz-pecã em um pomar de alta densidade. O experimento foi conduzido com a cultivar Melhorada em um pomar comercial de nogueira-pecã no município de Santa Rosa, Rio Grande do Sul (RS), Brasil. O estudo foi realizado entre julho de 2018 e junho de 2020. Em delineamento de blocos casualizados, foram aplicados os seguintes tratamentos: sem poda, poda hedge e poda central. A poda hedge aumentou o crescimento dos ramos, enquanto a poda central diminuiu o número de ramos secos. A produção de frutos oscilou nos ciclos. No primeiro, a produção foi superior quando se realizou a poda central. No segundo ciclo, foi superior nas árvores não podadas. Embora ambos os métodos de poda tenham diminuído o número de frutos com epicarpos fechados, não afetaram a maioria das variáveis de qualidade dos frutos. Portanto, os resultados demonstram que os métodos de poda promovem o desenvolvimento vegetativo das nogueiras, reduzindo os ramos secos, mas são inconclusivos quanto à sua produção e não têm efeito significativo sobre as principais variáveis da qualidade dos frutos. A avaliação e continuidade da poda por mais ciclos é importante para se obter resultados mais consistentes para indicar a melhor alternativa para os produtores.  
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- 2022
35. Comportamento do consumidor de frutas na região da fronteira oeste do Rio Grande Do Sul com Argentina e Uruguai
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Roseli de Mello Farias, Caroline Farias Barreto, Renan Ricardo Zandoná, Jessica Pedroso Rosado, and Carlos Roberto Martins
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Perfil consumidor ,fruticultura ,qualidade ,alimento ,Plant culture ,SB1-1110 - Abstract
O presente trabalho teve como objetivo identificar o perfil do consumidor, caracterizar a frequência, os principais hábitos de consumo de frutas e analisar os fatores que interferem no consumo da população residente na Fronteira Oeste do Rio Grande do Sul com Argentina e Uruguai. Foi realizada em 2012 uma pesquisa de caráter exploratório, transversal e de base populacional, constituindo-se na aplicação de questionários à população residente nos municípios de Uruguaiana, Itaqui, São Borja e Santana do Livramento. A mostra foi constituída de 400 consumidores entre as quatro cidades estudadas. Os resultados indicam que apenas 1/3 dos entrevistados consomem frutas diariamente, sendo o consumo mais frequente entre as mulheres. O local preferencial de compra das frutas para consumo ocorre em supermercados. Dentre os motivos que levam as pessoas a consumirem frutas, destaca-se a distinção da fruta como um alimento saudável, sendo a aparência o critério mais adotado na escolha das frutas. As principais frutas consumidas pelos entrevistados na região são as bananas, maçãs, laranjas, mamões e mangas, respectivamente. A redução do preço, a criação do hábito e a melhoria da qualidade das frutas são os fatores preponderantes para que ocorra aumento do consumo de frutas nesta região.
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- 2014
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36. Efeitos de fontes de pólen na qualidade de castanhas produzidas por cultivares de noz-pecã Kiowa e Barton
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Rudinei De Marco, Flávio Gilberto Herter, Roberto José Zoppolo Goldschmidt, Carlos Roberto Martins, and Claudia Crosa
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General Agricultural and Biological Sciences - Abstract
A seleção de cultivares de noz-pecã e seus polinizadores é essencial para atingir o máximo potencial de produção. A sincronia dos períodos de floração das cultivares pode não ser suficiente para garantir a qualidade da castanha devido ao efeito xenia. O objetivo deste trabalho foi avaliar os efeitos de diferentes polinizadores nas dimensões e produtividade dos frutos das cultivares Kiowa e Barton. Ambas as cultivares foram submetidas a seis tratamentos. Kiowa: sem polinização, polinização livre, autopolinização e polinização controlada por pólen das cultivares Cape Fear, Pawnee e Desmable. Barton: sem polinização, polinização livre, autopolinização e polinização controlada por pólen das cultivares Melhorada, Jackson e Success. A autopolinização diminuiu as dimensões e a produção de frutos e grãos. Pólen de diferentes cultivares exibiu efeito xenia positivo e negativo sobre as características dos frutos. O maior fruto e a maior produção de grãos foram alcançados quando 'Kiowa' foi polinizado com 'Desejável' e 'Barton' foi polinizado com 'Sucesso'.
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- 2023
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37. Randomized Trial of Botulinum Toxin Type A in Hereditary Spastic Paraplegia — The SPASTOX Trial
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Alberto R. M. Martinez, Anamarli Nucci, Katiane R. Servelhere, Ingrid Faber, Fabrício Diniz de Lima, Maria Fernanda Ribeiro Bittar, Luiza Piovesana, Marcondes C. França, Melina Pazian Martins, Benilton S. Carvalho, Tatiana Benaglia, and Carlos Roberto Martins
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Adult ,Male ,0301 basic medicine ,Adolescent ,Hereditary spastic paraplegia ,law.invention ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Double-Blind Method ,Randomized controlled trial ,law ,medicine ,Spastic ,Humans ,Spasticity ,Botulinum Toxins, Type A ,Child ,Spastic Paraplegia, Hereditary ,business.industry ,Infant ,Middle Aged ,medicine.disease ,Crossover study ,Gait ,Clinical trial ,Treatment Outcome ,030104 developmental biology ,Neuromuscular Agents ,Neurology ,Muscle Spasticity ,Child, Preschool ,Anesthesia ,Neurology (clinical) ,medicine.symptom ,business ,Paraplegia ,030217 neurology & neurosurgery - Abstract
BACKGROUND Hereditary spastic paraplegia presents spasticity as the main clinical manifestation, reducing gait quality and producing incapacity. Management with botulinum toxin type A (BoNT-A) is not well elucidated. The objective of the current study was to evaluate the efficacy and safety of BoNT-A in patients with hereditary spastic paraplegias. METHODS This was a double-blind, randomized, placebo-controlled crossover trial. Each participant was randomly assigned to receive 1 injection session of either BoNT-A (100 IU/2 mL of Prosigne in each adductor magnus and each triceps surae) or saline 0.9% (2 mL). The primary outcome measure was change from baseline in maximal gait velocity, and secondary outcome measures included changes in gait at self-selected velocity, spasticity, muscle strength, Spastic Paraplegia Rating Scale, pain, fatigue, and subjective perception of improvement. We also looked at adverse events reported by the patients. RESULTS We enrolled 55 patients, 36 of whom were men and 41 with the pure phenotype. Mean age was 43 ± 13.4 years (range, 19-72 years), mean age of onset waws 27 ± 13.1 years (range
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- 2021
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38. Chemical thinning of peach trees
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Roseli De Mello Farias, Caroline Farias Barreto, Carlos Roberto Martins, Renan Ricardo Zandoná, Andressa Vighi Schiavon, and Paulo Celso De Mello Farias
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General Agricultural and Biological Sciences - Abstract
Peach tree thinning is essential to harvest quality fruits and to keep balanced production for several years. Manual thinning of peach trees demands much work force and increases production costs. Chemical thinning may be an alternative solution, but efficiency depends on doses and species. This study aimed at evaluating the effect of metamitron – applied at different concentrations – on chemical thinning of peach trees in the south of Brazil. The experiment was carried out in a commercial peach tree orchard where ‘Sensação’ cultivars, in Morro Redondo, Rio Grande do Sul (RS) state, Brazil. The following metamitron concentrations were applied at concentrations of 100 mg L-1, 200 mg L-1, 300 mg L-1, 400 mg L-1, manual thinning was carried out 40 days after full bloom (DAFB) and to the treatment where the plants have no thinning. Fruit abscission, effective fructification, total number of plants per plant, production per plant, mean mass and fruit diameter were evaluated. Concentrations of 300 and 400 mg L-1 metamitron 40 DAFB provides promoted high fruit abscission, besides decreasing the number of fruits and production. Therefore, concentrations of 100 and 200 mg L-1 of metamitron 40 DAFB provides results in an efficient thinning practice similar to manual thinning for production, mass and fruit diameter.
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- 2022
39. Apple biological and physiological disorders in the orchard and in postharvest according to production system Distúrbios biológicos e fisiológicos no pomar e na pós-colheita de maçãs em função do sistema de produção
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Carlos Roberto Martins, Alexandre Hoffmann, Cesar Valmor Rombaldi, Roseli de Mello Farias, and Adenir Vieira Teodoro
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Macieira ,Malus domestica ,produção orgânica ,produção integrada ,Apple tree ,organic production ,integrated production ,Plant culture ,SB1-1110 - Abstract
The study aimed to evaluate the incidence of biological and physiological disorders in the field and postharvested apples cvs. Gala, Fuji and Catarina grown in four production systems: conventional, organic transition, integrated and organic. Apples were evaluated for damages related to biological and physiological disorders in the orchard and after harvest. The greatest damages were attributed to pests, especially Anastrepha fraterculus in the organic system and Grapholita molesta in the organic transition. Apples produced in organic orchards had higher damage levels caused by postharvest physiological disorders than those grown in other production systems. For apples becoming from organic orchards most of the damage was due to lenticels breakdown and degeneration ('Gala'), and bitter pit ('Fuji' and 'Catarina'). The incidence of postharvest rot was not influenced by apple production system.O objetivo deste trabalho foi avaliar a ocorrência de distúrbios biológicos e fisiológicos, tanto em nível de campo como em pós-colheita, de maçãs 'Gala', 'Fuji' e 'Catarina', produzidas em pomares conduzidos em quatro sistemas de produção: convencional, transição convencional-orgânico, integrado e orgânico. As maçãs foram avaliadas quanto à presença de danos ocasionados por distúrbios biológicos e fisiológicos no pomar e em pós-colheita. Os maiores danos foram atribuídos às pragas, principalmente à Anastrepha fraterculus em sistema orgânico e à Grapholita molesta em sistema de transição convencional-orgânico. As maçãs produzidas em sistema orgânico tiveram maiores danos em pós-colheita ocasionados por distúrbios fisiológicos do que as dos demais sistemas de produção. Nas frutas produzidas em sistema orgânico, os danos, em sua maioria foram com degenerescência e depressão lenticelar para a cv. Gala, e bitter pit para as cvs. Fuji e Catarina. A incidência de podridões pós-colheita não foi influenciada pelo sistema de produção.
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- 2013
40. Preditores de mortalidade em pacientes com cardiopatia isquêmica e cardiopatia chagásica crônica com cardiodesfibrilador implantável
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Neiberg de Alcantara Lima, Eduardo Arrais Rocha, Francisca Tatiana Moreira Pereira, Marcelo de Paula Martins Monteiro, Patricia de Araujo Matias, Carlos Roberto Martins Rodrigues Sobrinho, and Roberto da Justa Pires Neto
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Cardiopatias ,Cardiomiopatia Chagásica ,Cardiopatia Isquêmica ,Cardioversores-Desfibriladores Implantáveis ,Mortalidade. ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
INTRODUÇAO: A cardiopatia chagásica crônica e a cardiopatia isquêmica sao duas das principais causas de insuficiência cardíaca crônica na América Latina e também sao relacionadas a morte súbita cardíaca, sendo, portanto, indicaçoes comuns para o uso de cardiodesfibriladores implantáveis. Este estudo teve como objetivo avaliar preditores de mortalidade em pacientes com cardiopatia chagásica crônica e cardiopatia isquêmica com cardiodesfibrilador implantável. MÉTODO: Estudo prospectivo histórico que incluiu 153 pacientes (65 portadores de cardiopatia chagásica crônica e 88 portadores de cardiopatia isquêmica), acompanhados entre 2003 e 2011 no Hospital Universitário Walter Cantídio por um tempo médio de 32 (14,7-55) meses. Foram realizadas análises de regressao de Cox uni e multivariada além de teste de proporcionalidade de Schoenfeld e dos resíduos Cox-Snell. RESULTADOS: Os grupos foram similares quanto a sexo, classe funcional e fraçao de ejeçao. Quando analisados em conjunto, idade > 60 anos e classe funcional IV foram fatores de maior mortalidade. No grupo com cardiopatia chagásica crônica, baixa escolaridade e fraçao de ejeçao < 30% aumentaram a chance de morte; já no grupo com cardiopatia isquêmica, apenas a idade aumentou a chance de morte. Os pacientes chagásicos apresentaram escolaridade e renda mensal inferiores, comparativamente aos isquêmicos. CONCLUSAO: Idade > 60 anos e classe funcional IV foram preditores de pior evoluçao no subgrupo de pacientes portadores de cardiodesfibrilador implantável com cardiopatia chagásica crônica e cardiopatia isquêmica.
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- 2016
41. Clinical Course After Cardioverter-Defibrillator Implantation: Chagasic Versus Ischemic Patients
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Francisca Tatiana Moreira Pereira, Eduardo Arrais Rocha, Marcelo de Paula Martins Monteiro, Neiberg de Alcantara Lima, Carlos Roberto Martins Rodrigues Sobrinho, and Roberto da Justa Pires Neto
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Desfibriladores Implantáveis ,Doença de Chagas ,Isquemia Miocárdica ,Evolução Clínica ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Abstract Background: The outcome of Chagas disease patients after receiving implantable cardioverter defibrillator (ICD) is still controversial. Objective: To compare clinical outcomes after ICD implantation in patients with chronic Chagas cardiomyopathy (CCC) and ischemic heart disease (IHD). Methods: Prospective study of a population of 153 patients receiving ICD (65 with CCC and 88 with IHD). The devices were implanted between 2003 and 2011. Survival rates and event-free survival were compared. Results: The groups were similar regarding sex, functional class and ejection fraction. Ischemic patients were, on average, 10 years older than CCC patients (p < 0.05). Patients with CCC had lower schooling and monthly income than IHD patients (p < 0.05). The number of appropriate therapies was 2.07 higher in CCC patients, who had a greater incidence of appropriate shock (p < 0.05). Annual mortality rate and electrical storm incidence were similar in both groups. There was no sudden death in CCC patients, and only one in IHD patients. Neither survival time (p = 0.720) nor event-free survival (p = 0.143) significantly differed between the groups. Conclusion: CCC doubles the risk of receiving appropriate therapies as compared to IHD, showing the greater complexity of arrhythmias in Chagas patients.
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- 2016
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42. Syncope in Patients with Cardiac Pacemakers
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Camila Rabelo Ferreira Gomes, Carlos Roberto Martins Rodrigues Sobrinho, Gisele Schineider Cunha, Eduardo Arrais Rocha, Marcelo de Paula Martins Monteiro, Maria Eduarda Quidute Arrais Rocha, Ana Rosa Pinto Quidute, Antônio Brazil Viana Júnior, Aline Bezerra Tavares, and Francisca Tatiana Moreira Pereira
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medicine.medical_specialty ,Pacemaker, Artificial ,Multivariate analysis ,RD1-811 ,medicine.medical_treatment ,Population ,030204 cardiovascular system & hematology ,Logistic regression ,Cardiac pacemaker ,Syncope ,03 medical and health sciences ,Tilt table test ,0302 clinical medicine ,Cardiac Conduction System Disease ,Tilt-Table Test ,Internal medicine ,Surveys and Questionnaires ,medicine ,Syncope, Vasovagal ,Humans ,Diseases of the circulatory (Cardiovascular) system ,Attention ,education ,Atrioventricular Block ,education.field_of_study ,biology ,medicine.diagnostic_test ,business.industry ,Syncope (genus) ,Pacemaker failure ,General Medicine ,biology.organism_classification ,medicine.disease ,RC666-701 ,Cardiology ,Original Article ,Surgery ,Cardiology and Cardiovascular Medicine ,business ,Atrioventricular block - Abstract
Introduction: It is challenging to diagnose syncope in patients with pacemakers. Because these patients have increased morbidity and mortality risks, they require immediate attention to determine the causes in order to provide appropriate treatment. This study aimed to investigate the causes and predictive factors of syncope as well as the methods used to diagnose syncope in cardiac pacemaker patients. Methods: Patients with pacemakers implanted owing to sinus node disease or atrioventricular block were evaluated with standardized questionnaires, endocavitary electrograms, and other tests based on the suspected causes of syncope. Mann-Whitney U tests were used to analyze continuous variables and Chi-squared or Fisher’s exact tests were used for categorical variables. Logistic regression was used for multivariate analyses. Statistical significance was P
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- 2020
43. PROFUNDIDADE DE PLANTIO DE ESTACAS DE FIGUEIRA EM EMBALAGENS DE POLIETILENO
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Carlos Roberto Martins, Rafaela Schmidt de Souza, Claudia Farela Ribeiro Crosa, Rudinei De Marco, and Maurício Gonçalves Bilharva
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O presente trabalho teve como objetivo avaliar o efeito de diferentes profundidades no substrato de estacas de figueira no momento do plantio. Para a realização desse experimento foram coletadas estacas com aproximadamente 15 cm de comprimento e com duas gemas laterais de plantas da cultivar Roxo de Valinhos. Posteriormente, essas estacas foram colocadas em embalagens de polietileno (25x15 cm), contendo mistura do substrato comercial Ecocitrus® e vermiculita expandida na proporção 4:1 (v:v). Os tratamentos foram compostos em diferentes profundidades das estacas no substrato: T1= 15; T2=10; T3= 7,5 e T4= 5 cm. O delineamento experimental adotado foi inteiramente casualizados, com três repetições, contendo 10 estacas cada. Após 170 dias da implantação das estacas, foram avaliados os seguintes parâmetros: número de folhas, área foliar e radicular (cm²), porcentagem de sobrevivência (%), comprimento de brotos e matéria seca de parte aérea e do sistema radicular (g). As estacas de 1/3 apresentaram menor brotação, quando comparado aos demais tratamentos. O maior enraizamento foi obtido com as estacas 3/3 enterradas no substrato. As estacas lenhosas de figueira completamente imersas no substrato tiveram maior crescimento das mudas.
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- 2020
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44. Puérpera com trombose de prótese mecânica e estenose supravalvar aórtica adquirida Postpartum patient with thrombosis of mechanical prostheses and acquired supravalvular aortic stenosis
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Ricardo Adala Benfatti, Carlos Roberto Martins Júnior, Guilherme Viotto Rodrigues da Silva, and José Carlos Dorsa Vieira Pontes
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Estenose Aórtica Supravalvular ,Próteses Valvulares Cardíacas ,Tromboembolia ,Complicações Cardiovasculares na Gravidez ,Aortic Stenosis, Supravalvular ,Heart Valve Prosthesis ,Thromboembolism ,Pregnancy Complications, Cardiovascular ,Surgery ,RD1-811 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
A hipercoagulabilidade sanguínea proporcionada na gravidez aumenta consideravelmente a incidência de trombose de valvas mecânicas. A estenose supravalvar aórtica adquirida é extremamente rara. Relata-se o caso de uma puérpera imediata, portadora de prótese mecânica aórtica e estenose supravalvar aórtica adquirida, submetida à cirurgia cardíaca de emergência, com instabilidade hemodinâmica grave, por meio de técnica operatória adaptada para a correção da estenose supravalvar aórtica, com evolução clínica e resultados ecocardiográficos pós-operatórios satisfatórios.The blood hypercoagulability in pregnancy increases significantly the incidence of thrombosis of mechanical valves. Acquired supravalvular aortic stenosis is extremely rare. We report the case of an immediate postpartum patient with aortic mechanical prostheses and acquired supravalvular aortic stenosis who underwent emergency heart surgery, with severe hemodynamic instability, using adapted surgical technique for correction of supravalvular stenosis with satisfactory clinical and echocardiography results.
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- 2011
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45. Chronic effect of vagotomy in the morphometry of the myenteric plexus of rats' duodenum Efeito crônico da vagotomia sobre a morfometria do plexo mioentérico do duodeno de ratos
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Carlos Roberto Martins-Júnior, Aezio de Magalhães-Júnior, Paola Mayumi Inagaki, Pedro Paulo Pires, João José Lachat, and Jesiel Mamedes Silva
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Desnervação autonômica ,Plexo nervoso mioentérico de Auerbach ,Morfologia ,Autonomic denervation ,Auerbach's nervous plexus ,Morphology ,Surgery ,RD1-811 ,Diseases of the digestive system. Gastroenterology ,RC799-869 - Abstract
BACKGROUND: The gastrointestinal disorders have been associated with morphological alterations in the myenteric nervous plexus. AIM: To evaluate, through morphometric studies, the chronic effects of the subdiaphragmatic trunk vagotomy on the nervous plexus. METHODS: Fifteen male exemplars of Wistar Rattus novergicus weighing about 150g, distributed into three groups, have been used: control (n=5), Sham (n=5) and vagotomized (n=5). The animals were sacrificed after 30 and 90 days post surgery. Fragments of duodenum were fixed in Bouin solution, embedded into paraffin and stained with HE and PAS. Morphometric analysis was performed by a Carl Zeiss KM 450 image system. The following aspects were observed: the density of nervous cells per linear micrometer (µm) (ND); the area of perikarya (µm²) (NA); the number of satellite cells per µm (SCD); and the number of satellite cells per neuron (SC/N). The averages were compared with the help of "software" program Sigma Plus through two way - ANOVA and Tuckey post-test. RESULTS: Denervation increased SC/N (pRACIONAL: As disfunções gastrintestinais têm sido associadas à alterações morfológicas no plexo nervoso mioentérico. OBJETIVO: Avaliar através do estudo morfométrico, os efeitos crônicos da vagotomia troncular subdiafragmática sobre esse plexo nervoso. MÉTODOS: Foram utilizados 15 exemplares machos de Rattus novergicus da variedade Wistar, com cerca de 150 g, distribuídos nos grupos controle (n=5), Sham (n=5) e vagotomizados (n=5). Os animais foram sacrificados depois de 30 e 90 dias após as operações. Em seguida, fragmentos do duodeno foram fixados em solução de Bouin, incluídos em parafina e corados por HE e PAS. A análise morfométrica foi realizada por meio do sistema de análise de imagem Carl Zeiss KM 450. Foram observados: a densidade de células nervosas por micrômetro linear (µm); a área dos pericários (µm²); o número de células satélites por µm; e o número de células satélites por neurônio. As médias foram comparadas com o auxílio do programa de "software" Sigma Plus através do Two way - ANOVA e do pós-teste de Tukey. RESULTADOS: A desnervação aumentou o número de células satélites por neurônios (p
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- 2010
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46. Assessment of economic and environmental performance in citrus-based intercropping systems
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Carlos Roberto Martins, Inácio de Barros, Geraldo Stachetti Rodrigues, CARLOS ROBERTO MARTINS, CPACT, GERALDO STACHETTI RODRIGUES, CNPMA, and INACIO DE BARROS, CNPGL.
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0106 biological sciences ,Citrus ,Coastal Tablelands ,Plant Science ,Impacto Econômico ,Economic indicators ,01 natural sciences ,Economic performance ,SB1-1110 ,Agricultural science ,pequenos agricultores ,citriculture ,Mathematics ,fruticulture ,biology ,Environmental assessment ,Plant culture ,Intercropping ,04 agricultural and veterinary sciences ,Rentabilidade ,biology.organism_classification ,fruticultura ,Consorciação de Cultura ,smallholding growers ,Economic impact ,sustainability assessment ,Impacto Ambiental ,avaliação da sustentabilidade ,040103 agronomy & agriculture ,0401 agriculture, forestry, and fisheries ,Biological regulation ,Citricultura ,Agronomy and Crop Science ,planaltos costeiros ,010606 plant biology & botany ,Food Science - Abstract
The economic and environmental performances of agriculture intercropping depend on the complementarities between the crops that make up the system. The objective of this work was to analyze the citrus-based intercropping systems in the Coastal Tablelands region of Northeastern Brazil, aiming to identify the associations of crops with better economic and environmental performances. The study started with the construction of a set of integrated indicators, with which the field information was recorded and the performance indices calculated, based on three principles: Profitability, Productive Efficiency, and Biological Regulation. Citrus orchards in monoculture resulted in lower environmental economic performance indices. The intercropping systems that yielded the best environmental and economic performance indices in the citrus orchards were: cassava; cassava, corn and beans; corn and pumpkin. The indicators associated with these economic-environmental performances were profit, seasonality, productive diversity, profit evenness, plant health control impact level, and efficiency in the use of water, nitrogen, and phosphate. -- Resumo: O desempenho econômico e ambiental do consórcio agrícola depende das complementaridades entre as culturas que compõem o sistema. O objetivo deste trabalho foi analisar os sistemas de consorciação à base de citros na região dos Tabuleiros Costeiros do Nordeste do Brasil, visando a identificar as consorciações de culturas com melhores desempenhos econômico e ambiental. O estudo iniciou-se com a construção de um conjunto de indicadores integrados, com os quais foram registradas as informações de campo e calculados os índices de desempenho, com base em três princípios: Rentabilidade, Eficiência Produtiva e Regulação Biológica. Os pomares de citros em monocultivo resultaram em menores índices de desempenho econômico ambiental. As combinações de cultivos consorciados aos citros que promoveram os melhores índices de desempenho econômico ambiental foram: mandioca; mandioca, milho e feijão; milho e abóbora. Os principais indicadores associados a este desempenho econômico ambiental foram o nível de impacto do controle fitossanitário, a diversidade produtiva, a lucratividade do consórcio, o equilíbrio da rentabilidade, o retorno do investimento em energia fóssil, e a eficiência do uso de água, de nitrogênio e de fósforo. Made available in DSpace on 2021-04-08T02:09:15Z (GMT). No. of bitstreams: 1 Martins-Assessment-economic-2021.pdf: 1187526 bytes, checksum: f3fcee147c684dc47baba1ab5fa2d45c (MD5) Previous issue date: 2021
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- 2021
47. Effect of salicylic acid in post-harvest quality of 'BRS Kampai' peaches submitted to different cold storage periods
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Roseli de Mello Farias, Carlos Roberto Martins, Caroline Farias Barreto, Marcelo Barbosa Malgarim, Jorge Atílio Benati, Renan Navroski, JORGE ATÍLIO BENATI, CAROLINE FARIAS BARRETO, RENAN NAVROSKI, ROSELI DE MELLO FARIAS, CARLOS ROBERTO MARTINS, CPACT, and MARCELO BARBOSA MALGARIM.
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Horticulture ,chemistry.chemical_compound ,BRS Kampai ,Chemistry ,Pêssego ,Cold storage ,Prunus Persica ,Plant Science ,Prunus ,Armazenamento ,Agronomy and Crop Science ,Salicylic acid - Abstract
Fast ripening of fruits is one of the main hindrances to peach preservation. Even though the use of cold storage has extended commercialization periods, fruit quality is affected during storage. This study aimed at evaluating the influence of application of salicylic acid (SA) during cold storage, followed by commercialization simulation, regarding physical and chemical characteristics of ?BRS Kampai? peaches, which were harvested in the 2017 crop. The experiment was conducted in a completely randomized factorial design (4×3: SA concentrations × storage days), with four replications of ten fruits each. SA was applied at the following concentrations: 0, 2, 4 and 6 mM. Afterwards, fruits were submitted to cold storage at 1±0.5ºC and 80-85% relative humidity. Analyses were carried out on harvest day, on the 10th cold storage day, followed by a day at room temperature (20ºC) and on the 20th cold storage day, followed by a day at room temperature. Fruits were evaluated in terms of their mass loss, epidermis color, chromatic hue, pulp firmness, soluble solids (SS), pH and titratable acidity (TA). Both application of SA and cold storage contributed to decrease mass loss and TA, besides increasing the SS/TA relation. Fruits which were stored for 20 days and kept at room temperature for a day exhibited the highest values of SS and the lowest values of both brightness and pulp firmness. SA was efficient to maintain the quality of ?BRS Kampai? peaches submitted to cold storage for 10 and 20 days and an extra day of commercialization simulation. Made available in DSpace on 2022-03-16T07:06:02Z (GMT). No. of bitstreams: 1 Artigo-Effect-of-salicylic-acid-in.pdf: 799617 bytes, checksum: c5fe044f905e9a7f7c816f0e6fe743f2 (MD5) Previous issue date: 2021
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- 2021
48. Dosagem de microalbuminúria em hipertensos e em pacientes portadores de doença coronariana Determination of microalbuminuria in hypertensive patients and in patients with coronary artery disease
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Ricardo Pereira Silva, Karinne Cisne, Jerusa Mara de Oliveira, Marcos Kubrusly, Carlos Roberto Martins Rodrigues Sobrinho, and Pedro José Negreiros de Andrade
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Albuminúria ,hipertensão ,coronariopatia ,Albuminuria ,hypertension ,coronary disease ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
FUNDAMENTO: A taxa normal de excreção de albumina em 24 horas é de 20 mg. A taxa persistente de 30 a 300 mg/dia é chamada de microalbuminúria (MA) e está relacionada com maior prevalência de doença cardiovascular. OBJETIVO: Determinar a prevalência de microalbuminúria em um grupo de hipertensos e em um grupo de portadores de doença coronariana; e determinar a relação da presença de microalbuminúria com hipertensão arterial, diabete melitus, dislipidemia, tabagismo e obesidade. MÉTODOS:: Determinamos a presença de microalbuminúria num grupo de hipertensos (73 indivíduos) e num grupo de coronariopatas (39 indivíduos), e comparamos com um grupo-controle (43 indivíduos). Considerou-se como microalbuminúria a relação albumina/creatinina maior que 30 e menor que 300 em amostra isolada de urina matinal. Na análise estatística, foram utilizados os testes do qui-quadrado e o teste exato de Fisher. RESULTADOS: A microalbuminúria esteve presente em 9,5% dos hipertensos, em 33% dos coronariopatas e não esteve presente em nenhum indivíduo do grupo-controle. Ao analisar a ocorrência de microalbuminúria segundo os diversos parâmetros clínicos, independentemente do grupo a que pertenciam, verificamos correlação estatisticamente significativa com idade, diabete e dislipidemia. CONCLUSÃO: 1) A prevalência de microalbuminúria em indivíduos hipertensos é elevada, sendo ainda mais elevada em portadores de doença coronariana; 2) existe correlação da presença de microalbuminúria com idade, diabete e dislipidemia.BACKGROUND: The normal 24-hour albumin excretion rate is of 20 mg. A persistent rate of 30 to 300 mg/day is called microalbuminuria and is related to a higher prevalence of cardiovascular disease. OBJECTIVE: 1) To determine the prevalence of microalbuminuria in a group of hypertensive patients and in a group of patients with coronary artery disease; 2) To determine the relationship between the presence of microalbuminuria and hypertension, diabetes mellitus, dyslipidemia, smoking and obesity. METHODS: The presence of microalbuminuria in a group of hypertensive patients (73 individuals) and in a group of patients with coronary artery disease (39 individuals) was determined and compared with a control group (43 individuals). Microalbuminuria was defined as an albumin/creatinine ratio higher than 30 and lower than 300 in a spot morning urine sample. The chi-square test and the Fisher’s exact test were used in the statistical analysis. RESULTS: Microalbuminuria was present in 9.5% of the hypertensive individuals and in 33% of the patients with coronary artery disease, and was absent in individuals of the control group. When the occurrence of microalbuminuria was analyzed according to the different clinical parameters, regardless of the group involved, a statistically significant correlation was found with age, diabetes and dyslipidemia. CONCLUSION: 1) The prevalence of microalbuminuria in hypertensive individuals is high, and is even higher in patients with coronary artery disease; 2) There is a correlation of the presence of microalbuminuria with age, diabetes and dyslipidemia.
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- 2008
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49. Carbohydrate content in branches and abscission of fruit of peach trees subjected to chemical thinning
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Carlos Roberto Martins, Paulo Mello-Farias, Renata Diane Menegatti, Marcelo Barbosa Malgarim, Renan Ricardo Zandoná, Caroline Farias Barreto, and Roseli de Mello Farias
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Carbohydrate content ,genetic structures ,metamitron ,Agriculture (General) ,Biology ,S1-972 ,Prunus ,chemistry.chemical_compound ,Abscission ,qualidade de fruto ,Yield (wine) ,Lignin ,Cultivar ,número de frutos ,Prunus persica ,Thinning ,fruit quality ,food and beverages ,floração ,Horticulture ,number of fruit ,Fruit abscission ,chemistry ,blooming ,Animal Science and Zoology ,Agronomy and Crop Science - Abstract
The objective of this work was to evaluate the effect of chemical thinning with metamitron on fruit of the Maciel and Sensação peach (Prunus persica) tree cultivars, as well as to identify its relation to the carbohydrate content in their branches. The experimental design was randomized complete blocks, and the treatments were trees with no thinning, manual fruit thinning, and chemical thinning with 200 mg L-1 metamitron applied at 20, 40, and 60 days after full blooming. The evaluated variables were: abscission percentage, yield per plant, number of fruit, presence of lignin in fruit, and carbohydrate content in the branches. The carbohydrate content was evaluated in trees with and without chemical thinning seven days after the application of the product. The use of metamitron promotes fruit thinning in the ‘Maciel’ and ‘Sensação’ peach trees, with a decrease in the carbohydrate content in their branches. Metamitron application 20 and 40 days after full blooming favors fruit abscission in both studied cultivars. Resumo O objetivo deste trabalho foi avaliar o efeito do raleio químico com metamitron em frutos de pessegueiro (Prunus persica) das cultivares Maciel e Sensação, bem como a sua relação com o teor de carboidratos nos seus ramos. O delineamento experimental foi de blocos ao acaso, e os tratamentos foram plantas sem raleio, raleio manual de frutos e raleio químico com 200 mg L-1de metamitron aos 20, 40 e 60 dias após a plena floração. As variáveis analisadas foram: percentagem de abscisão, produção por planta, número de frutos, presença de lignina nos frutos e teores de carboidratos nos ramos. O teor de carboidratos foi avaliado em plantas com e sem raleio químico, sete dias após a aplicação do produto. O uso de metamitron promove raleamento dos frutos dos pessegueiros ‘Maciel’ e 'Sensação', com redução no conteúdo de carboidratos nos seus ramos. A aplicação de metamitron aos 20 e 40 dias após a plena floração favorece a abscisão dos frutos de ambas as cultivares estudadas.
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- 2021
50. Achados de functional magnetic resonance imaging e diffusion tensor imaging em um paciente com paralisia da mirada horizontal com progressiva escoliose, relacionado ao gene ROBO3
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Fabrício Castro de Borba, Marcondes Cavalcante França Junior, João Pedro Nunes Gonçalves, Brunno Machado de Campos, and Carlos Roberto Martins Junior
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medicine.medical_specialty ,Ophthalmoplegia, Chronic Progressive External ,Head tremor ,Receptors, Cell Surface ,Neurosciences. Biological psychiatry. Neuropsychiatry ,Young Adult ,Progressive scoliosis ,medicine ,Humans ,Past medical history ,medicine.diagnostic_test ,business.industry ,Horizontal gaze palsy ,medicine.disease ,Gaze ,Diffusion Magnetic Resonance Imaging ,Neurology ,Scoliosis ,Female ,Neurology (clinical) ,Radiology ,business ,Functional magnetic resonance imaging ,Diffusion MRI ,Tractography ,RC321-571 - Abstract
A 24-year-old-woman woman presented with birth-onset horizontal gaze ophthalmoplegia. Past medical history was unremarkable. Her brother had similar findings with severe progressive scoliosis, requiring surgery. After 12 years of follow-up, the patient developed mild head tremor which did not bother her and nightmare disorders that was successfully treated with nortriptyline Spine X-rays revealed mild scoliosis. Whole exome analysis revealed c.906-17G>A mutation in splicing site, confirming horizontal gaze palsy with progressive scoliosis (HGPPS). Diffusion tensor imaging (DTI) tractography revealed parallel non-decussating [...]
- Published
- 2021
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