Armazenamento de sementes de feijão revestidas com polímeros e tratadas com fungicidas
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Data
2004-07
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Resumo
Coating seeds with polymers associated with chemicals is used to promote a better fixation of seed
treatment products, and therefore minimizing toxic hazards. The objective of this work was to verify the effect of
four-month storage on quality of dry bean (Phaseolus vulgaris L.) seed coated with polymers, and treated with
fungicides. Bean seeds were inoculated by immersion in a suspension of Colletotrichum lindemuthianum
(5x10 5 conidia/mL), applied under vacuum. After the inoculation, seeds were treated with different types of
fungicides: wettable powder, dry powder and concentrated suspension, applied either mixed or prior to polymer
coating. Two different types of PVA paint were used as coating agent. Seed quality was evaluated through
germination, vigor and pathological tests. Germination of coated and treated seeds was not affected during the
storage period. The association of coating and a wettable powder treatment showed a higher germination
percentage after two months of storage. The formulations wettable powder and concentrated suspension
promoted a better control of the pathogens.
Descrição
Palavras-chave
Phaseolus vulgaris, Revestimento, Tratamento químico, Phaseolus vulgaris, Coating, Seed treatment
Citação
PIRES, Larissa Leandro; BRAGANTINI, Cláudio; COSTA, Jefferson Luís da Silva. Armazenamento de sementes de feijão revestidas com polímeros e tratadas com fungicidas. Pesquisa Agropecuária Brasileira, Brasília, v. 39, n.7, p. 709-715, jul. 2004.