Quantitative variation for grain quality in Brazilian maize populations.

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dc.contributorANDREA MITTELMANN, CNPGL; JOSÉ BRANCO DE MIRANDA FILHO, USP/ESALQ; LUCIANO LOURENCO NASS, SRI; GUSTAVO JULIO MELLO M DE LIMA, CNPSA; CLAUDETE HARA KLEIN, CNPSA; RICARDO MACHADO DA SILVA, Universidade de Taubaté.
dc.creatorMITTELMANN, A.
dc.creatorMIRANDA FILHO, J. B. de
dc.creatorNASS, L. L.
dc.creatorLIMA, G. J. M. M. de
dc.creatorKLEIN, C. H.
dc.creatorSILVA, R. M. da
dc.date2025-05-27T13:04:07Z
dc.date2025-05-27T13:04:07Z
dc.date2011-03-16
dc.date2011
dc.date.accessioned2026-07-07T03:59:20Z
dc.descriptionDevelopment of maize (Zea mays L.) cultivars with high grain protein and oil concentrations and an appropriate amino acid composition, without losses in grain yield, represents a challenge in breeding programs. The objective of this work was to study the nutritional quality of ten Brazilian maize populations evaluated in three environments. A randomized block design with six replications was used. Ear yield and the concentrations of protein, oil, serine, glutamic acid, alanine, leucine, tyrosine and phenylalanine were evaluated. Individual and combined analyses of variance were performed. Populations diverged for most of the traits. Environmental effects influenced variation for most of the traits, unlike genotype-environment interaction, allowing the selection on the average of environments. Positive association exists among protein and most of the amino acids, when considered on a dry matter basis and there is no association between nutritional quality and yield; therefore, the development of cultivars that are superior for both traits is expected to be feasible.
dc.identifierScientia Agricola, v. 68, n. 1, p. 50-56, 2011.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/881210
dc.identifierhttps://doi.org/10.1590/S0103-90162011000100008
dc.identifier.urihttp://hdl.handle.net/123456789/449704
dc.languageeng
dc.rightsopenAccess
dc.subjectQualidade nutricional
dc.subjectAminoácidos
dc.subjectMelhoramento
dc.subjectProteína
dc.titleQuantitative variation for grain quality in Brazilian maize populations.
dc.typeArtigo de periódico

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