Effect of leaf blast control by pyroquilon seed treatment on panicle blast progress and grain yield.

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dc.contributorMARTA CRISTINA CORSI DE FILIPPI, CNPAF; ANNE SITARAMA PRABHU, CNPAF.
dc.creatorFILIPPI, M. C.
dc.creatorPRABHU, A. S.
dc.date2022-06-09T19:19:35Z
dc.date2022-06-09T19:19:35Z
dc.date2006-05-12
dc.date1997
dc.date.accessioned2026-07-01T00:07:23Z
dc.descriptionFour early maturing upland rice genotypes (lAC 165, IAC 25, Guarani and CNA 4136) were assessed for yield response to seed treatment towards rice blast control in three field experiments. Seed treatment with the systemic fungicide pyroquilon (4.0 g a.i./kg seed) suppressed leaf blast in all the three experiments exhibiting different degrees of disease severity. When the cultivars and experiments were examined, it was found that leaf blast was controlled by 26.8%, on average. The mean leaf and panicle blast severities were positively correlated in two out of three experiments. The control of panicle blast varied in different genotypes. Linear multiple regression equations using leaf and panicle blast as the independent variables and grain yield as the dependent variable showed that both leaf and panicle blast significantly accounted for variation in grain yield. Pyroquilon seed treatment significantly increased the average yield in one of the three experiments when compared to the untreated control.
dc.identifierFitopatologia Brasileira, v. 22, n. 2, p. 164-170, jun. 1997.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/214145
dc.identifier.urihttp://hdl.handle.net/123456789/397839
dc.languageeng
dc.rightsopenAccess
dc.subjectPyroquilon
dc.subjectControle
dc.subjectArroz
dc.subjectBrusone
dc.subjectOryza Sativa
dc.subjectPyricularia Grisea
dc.subjectSemente
dc.subjectTratamento
dc.subjectRice
dc.subjectPyricularia
dc.subjectEpidemiology
dc.subjectBlast disease
dc.titleEffect of leaf blast control by pyroquilon seed treatment on panicle blast progress and grain yield.
dc.typeArtigo de periódico

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