Hemileia Vastatrix E Fitopatologia
Mostrando 13-20 de 20 artigos, teses e dissertações.
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13. Plant extracts and commercial products for the management of coffee rust and mechanisms of coffee defense against Cercospora leaf spot. / Extratos vegetais e produtos comerciais no manejo da ferrugem e nos mecanismos de defesa do cafeeiro à cercosporiose
The aim of this study was to evaluate the effect of plant extracts and commercial products against rust in a conventional farming system. Furthermore, to assess the defense mechanisms of coffee seedlings against Cercospora leaf spot. The rust experiment was conducted in a coffee field (Cultivar Rubi) with 10 year old at the campus of Federal University of La
Publicado em: 2008
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14. RIBEIRO JÃNIOR, Pedro Martins. Phosphites for the protection and induction of resistance in coffee plants against Hemileia vastatrix and Cercospora coffeicola. 2008. 105p. Thesis (Doctorate in Phytopathology) â Federal University of Lavras, Lavras. / âFosfitos na proteÃÃo e na induÃÃo de resistÃncia do cafeeiro contra Hemileia vastatrix e Cercospora coffeicolaâ
The present work was aimed at evaluating the effect of the application of potassium, manganese and zinc phosphites on the control of rust and brown eye spot of coffee plants in the field; to verify the protective effect of these products and of acibenzolar-S-methyl (ASM) against brown eye spot on coffee seedlings and to study the mechanisms involved in the d
Publicado em: 2008
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15. PROGRESSO DA FERRUGEM E DA CERCOSPORIOSE NA CULTURA DO CAFEEIRO IRRIGADO EM VÃRIAS DENSIDADES DE PLANTIO / Progress of rust and cercosporosis in irrigated cultivation of coffee in various densities of planting
The current coffee has been adopted new technologies to conduct and to manage crop, such as irrigation, fertigation and high plant densities in order to increase productivity and consequently, the profit. The aim of this study was to evaluate the effect of different irrigation methods applied in four plant densities by a drip system, its relation with the in
Publicado em: 2008
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16. Estratégias de controle da ferrugem em cafeeiro irrigado e não-irrigado / Strategies for the control of coffee leaf rust in irrigated and nonirrigated conditions
Experimentos de campo foram conduzidos em lavoura comercial de café do cultivar Catuaí Vermelho IAC 144, irrigada e não irrigada por gotejamento, em Viçosa Minas Gerais, no período de dezembro de 2000 a junho de 2006 com o objetivo de avaliar diferentes estratégias de aplicação de fungicidas sistêmicos e protetores no controle da ferrugem e na produ
Publicado em: 2008
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17. Diseases under organic cultivation of coffee (Coffea arabica L.): epidemiology and alternative control / âDoenÃas em cultivo orgÃnico do cafeeiro (Coffea arabica L.) : epidemiologia e controle alternativoâ
In the years of 2005 and 2006 two trials were installed in eight year old coffee plantations of the cv. Acaià MG-474-19, under organic and conventional crop systems, in Santo AntÃnio do Amparo, Minas Gerais. The progress of rust and brown eye spot diseases of coffee was assessed as a function of the effect of different biofertilizers, between December/2004
Publicado em: 2007
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18. Genetic diversity of Hemileia vastatrix populations from Minas Gerais State / Diversidade genética de populações de Hemileia vastatrix no estado de Minas Gerais
Utilizaram-se os marcadores microssatélite e RAPD para a caracterização de 120 isolados de Hemileia vastatrix obtidos em 2005, de cafeeiros de seis municípios, sob dois sistemas de cultivos (convencional e orgânico), de duas das principais regiões cafeicultoras de Minas Gerais (Zona da Mata e Sul de Minas). Após avaliar a integridade das amostras de D
Publicado em: 2006
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19. Progress of the rust and brown eye rust in coffee plants during transition of conventional growing system to the organic. / Progresso da Ferrugem e da Cercosporiose em Cafeeiro na TransiÃÃo dos Cultivos Convencional para OrgÃnico
O trabalho teve por objetivo estudar o progresso e o manejo da ferrugem e da cercosporiose do cafeeiro, na transiÃÃo do cultivo convencional para o orgÃnico. O experimento foi conduzido em lavoura cafeeira da cultivar Catuaà Amarelo, em uma Ãrea de 2,2 ha da fazenda Baunilha, em Lavras, MG. O delineamento foi o lÃtice balanceado 4x4, com cinco repetiÃ
Publicado em: 2006
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20. Epidemiology and management of coffee (Coffea arabica L.) diseases under organic farming. / Epidemiologia e manejo de doenÃas do cafeeiro (Coffea arabica L.) sob cultivo orgÃnico
The present work aimed to study coffee diseases on organic crop system. For that, rust and black eye spot disease progress on organic and conventional crop systems were compared. The effect of nutrient sources in the disease management was evaluated and, finally, the effect of plant extracts in the protection of coffees in the organic system was tested. The
Publicado em: 2006