Data/hora: 14/06/2024 07:57:00

Biblioteca(s): | Embrapa Milho e Sorgo; Embrapa Tabuleiros Costeiros.
Data corrente: | 01/02/2017
Data da última atualização: | 19/04/2017
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.
Título: | Applying the generalized additive main effects and multiplicative interaction model to analysis of maize genotypes resistant to grey leaf spot.
Ano de publicação: | 2016
Fonte/Imprenta: | Journal of Agricultural Science, Cambridge, 2016.
ISSN: | 14695146
DOI: | 10.1017/S0021859616001015

Idioma:

Inglês
Português

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.
Palavras-Chave: | Maize.
Thesagro: | Mancha foliar; Milho.

Categoria do assunto:

--
H Saúde e Patologia

URL:

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/154434/1/Applying-the-generalized.pdf
http://ainfo.cnptia.embrapa.br/digital/bitstream/item/155041/1/Applying-generalized.pdf

Registro original: | Embrapa Tabuleiros Costeiros (CPATC)

Exemplares:

CPATC - (24784-1) - UPC - AP - DD -  -  -  - DIS
CNPMS - (27667-1) - UPC - AP - DD -  -  -  - DIS