Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/488372
Unidade da Embrapa/Coleção:: Embrapa Milho e Sorgo - Artigo em periódico indexado (ALICE)
Data do documento: 9-Nov-2004
Tipo do Material: Artigo em periódico indexado (ALICE)
Autoria: COIMBRA, R. R.
MIRANDA, G. V.
CRUZ, C, D.
SILVA, D. J. H.
VILELA, R. A.
Informaçães Adicionais: Ronaldo R. Coimbra, Universidade Federal do Tocantins; Glauco V. Miranda, UFV; Cosme D. Cruz, UFV; Derly J. H. Silva, UFV; RAMIRO A. VILELA, CNPMS.
Título: Development of a Brazilian maize core collection.
Edição: 2009
Fonte/Imprenta: Genetics and Molecular Biology, Ribeirão Preto, v. 32, n. 3, p. 538-545, 2009.
Idioma: en
Conteúdo: The aim of this study was to evaluate methods for developing a Brazilian maize core collection. For an initial survey of the active collection, passport information, as well as characterization and evaluation of accessions, were taken into consideration, these then being divided according to geographic region and kernel-type. Multiple sampling methods were evaluated. The strategy of constant sampling generated extensive alterations in extract accession frequency. The multivariate strategy with dispersion graphs and principal components associated with the Tocher method was considered efficient for identifying the most divergent genotypes. The multivariate strategy generated greater alterations in the variance of traits. The average number of traits revealed few modifications with the various sampling strategies used. Therefore, the active collection could be considered as possessing a satisfactory amount of information for most of its accessions. Moreover, the multivariate strategy generated modifications in the variance of the traits, independent of sampling intensity.
Thesagro: Milho
Melhoramento
Ano de Publicação: 2009
Aparece nas coleções:Artigo em periódico indexado (CNPMS)

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