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dc.contributor.authorSOUZA, L. V. dept_BR
dc.contributor.authorMIRANDA, G. V.pt_BR
dc.contributor.authorGALVÃO, J. C. C.pt_BR
dc.contributor.authorGUIMARAES, L. J. M.pt_BR
dc.contributor.authorSANTOS, I. C. dospt_BR
dc.date.accessioned2017-06-09T23:55:15Z-
dc.date.available2017-06-09T23:55:15Z-
dc.date.created2010-01-13pt_BR
dc.date.issued2009pt_BR
dc.identifier.citationPesquisa Agropecuária Brasileira, Brasília, DF, v. 44, n. 10, p. 1297-1303, out. 2009.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/580240pt_BR
dc.descriptionThe objectives of this work were to caracterize the tropical maize germplasm and to compare the combining abilities of maize grain yield under different levels of environmental stress. A diallel was performed among tropical maize cultivars with wide adaptability, whose hybrid combinations were evaluated in two sowing dates, in two years. The significance of the environmental effect emphasized the environmental contrasts. Based on grain yield, the environments were classified as favorable (8,331 kg ha-1), low stress (6,637 kg ha-1), high stress (5,495 kg ha-1), and intense stress (2,443 kg ha-1). None of the genetic effects were significant in favorable and intense stress environments, indicating that there was low germplasm variability under these conditions. In low and high stresses, the specific combining ability effects (SCA) were significant, showing that the nonadditive genetic effects were the most important, and that it is possible to select parent pairs with breeding potential. SCA and grain yield showed significant correlations only between the closer environment pairs like favorable/low stress and high/intense stress. The genetic control of grain yield differed under contrasting stress environments for which maize cultivars with wide adaptability are not adequate.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectEstresse abióticopt_BR
dc.subjectMelhoramento genéticopt_BR
dc.subjectProdutividade de grãos de milhopt_BR
dc.subjectCapacidade de combinaçãopt_BR
dc.titleCombining ability of maize grain yield under different levels of environmental stress.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2018-05-25T11:11:11Zpt_BR
dc.subject.thesagroControle Genéticopt_BR
dc.subject.thesagroZea Mayspt_BR
riaa.ainfo.id580240pt_BR
riaa.ainfo.lastupdate2018-05-25 -03:00:00pt_BR
dc.identifier.doi10.1590/S0100-204X2009001000013pt_BR
dc.contributor.institutionLEANDRO VAGNO DE SOUZA, Dow Agrosciences - SP; GLAUCO VIEIRA MIRANDA, UFV; JOÃO CARLOS CARDOSO GALVÃO, UFV; LAURO JOSE MOREIRA GUIMARAES, CNPMS; IZABEL CRISTINA DOS SANTOS, EPAMIG.pt_BR
Aparece nas coleções:Artigo em periódico indexado (CNPMS)

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