Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1062370
Título: Applying the generalized additive main effects and multiplicative interaction model to analysis of maize genotypes resistant to grey leaf spot.
Autoria: ACORSI, C. R. L.
GUEDES, T. A.
COAN, M. M. D.
PINTO, R. J. B.
SCAPIM, C. A.
PACHECO, C. A. P.
GUIMARAES, P. E. de O.
CASELA, C. R.
Afiliação: UEM; UEM; UEM; UEM; UEM; CLESO ANTONIO PATTO PACHECO, CPATC; PAULO EVARISTO DE O GUIMARAES, CNPMS.
Ano de publicação: 2016
Referência: Journal of Agricultural Science, Cambridge, 2016.
Conteúdo: Analysing the stability and adaptation of cultivars to different environments is always necessary before recommending them for planting on large areas. Additive main effects and multiplicative interaction (AMMI) models have been used to analyse genotype-by-environment interactions (G × E). AMMI models require data with homogeneous variance, normal errors and additive effects. However, agronomic data do not always conform to these statistical assumptions. The objective of the present study was to analyse G × E interactions for severity and incidence of grey leaf spot, a foliar disease in maize caused by Cercospora zeae-maydis, using a generalized AMMI model. Data were collected and evaluated for 36 maize cultivars from experiments carried out in nine Brazilian regions in 2010/11 by the Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA?Milho e Sorgo). Only two of three stable genotypes defined by a quasi-likelihood model with a logistic link function could be recommended for their desirable agronomic characteristics. Four growing locations in which the genotypes were stable were identified, but in only one of these was stability associated with very severe grey leaf spot disease. Cultivars adapted to specific locations with low percentage disease severity were also identified.
Thesagro: Milho
Mancha foliar
Palavras-chave: Maize
ISSN: 14695146
Digital Object Identifier: 10.1017/S0021859616001015
Tipo do material: Artigo de periódico
Acesso: openAccess
Aparece nas coleções:Artigo em periódico indexado (CPATC)

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