Controle da mancha-angular (Phaeoisariopsis griseola) do feijoeiro com a calda Viçosa

Geraldo Antonio de Andrade Araujo; Laércio Zambolim; Geneilcimar Pereira dos Santos; Paulo Roberto Gomes Pereira

doi:10.4025/actasciagron.v22i0.2859

Angular leaf spot control in bean with calda Viçosa

Authors

Geraldo Antonio de Andrade Araujo UFV Author
Laércio Zambolim UFV Author
Geneilcimar Pereira dos Santos UFV Author
Paulo Roberto Gomes Pereira UFV Author

DOI:

https://doi.org/10.4025/actasciagron.v22i0.2859

Keywords:

nutrição, mancha-angular, feijão, micronutrientes

Abstract

Calda Viçosa and its modifications were evaluated in angular leaf spot control and yield of common bean. The trial was conducted in a greenhouse, in a randomized block design, with eight treatments and five replications, using milionário 1732 cultivar in 1 dm³ pots. Each pot received 2.5g of 4-14-8. Each experiment unit had two plants per pot. Plants were sprayed 28 and 35 days after emergency. Phaeoisatiopsis griseola was inoculated 36 days after plant emergency with 106 conidia per mL. The following treatments were evaluated: 1 - calda Viçosa; 2 - calda Viçosa with ammonium molibidate; 3 - ammonium molibidate; 4 - calda Viçosa without magnesium sulphate; 5 - calda Viçosa without zinc sulphate; 6 - calda Viçosa without boric acid; 7 - methyltiophanate, and 8 - check treatment. The evaluation was done according to a severity scale from 1 - no symptoms, to 9 - maximum severity, and grain yield. The highest yield was obtained with calda Viçosa without boric acid. Calda Viçoosa and its modifications and methyltiophanate did not differ in relation to angular leaf spot control

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Author Biography

Geraldo Antonio de Andrade Araujo, UFV

possui graduação em AGRONOMIA pela Universidade Federal de Viçosa (1970), mestrado em Fitotecnia (Produção Vegetal) pela Universidade Federal de Viçosa (1977) e doutorado em Fitotecnia (Produção Vegetal) pela Universidade Federal de Viçosa (1982). Ocupou os cargos de Chefe do departamento de Fitotecnia, Diretor do Centro de Ciências Agrárias e no momento, Pró-Reitor de Extensão e cultura. Atualmente é professor titular da Universidade Federal de Viçosa. Tem experiência na área de Agronomia, com ênfase em Manejo e Tratos Culturais, atuando principalmente nos seguintes temas: feijão, milho, molibdênio, cultivares de feijão Currículo Lattes

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Published

2008-05-08

Issue

Vol. 22 (2000)

Section

Agronomy

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How to Cite

Angular leaf spot control in bean with calda Viçosa. (2008). Acta Scientiarum. Agronomy, 22, 973-977. https://doi.org/10.4025/actasciagron.v22i0.2859