Data/hora: 19/06/2024 04:16:52

Biblioteca(s): | Embrapa Arroz e Feijão.
Data corrente: | 18/10/2004
Data da última atualização: | 26/10/2004
Autoria: | ASSIS, G. M. L. de; EUCLYDES, R. F.; CRUZ. C. D.; VALLE, C. B. do.
Título: | Genetic divergence in Brachiaria species.
Ano de publicação: | 2002
Fonte/Imprenta: | Crop Breeding and Applied Biotechnology, Londrina, v. 2, n. 3, p. 331-338, Sept. 2002.
Idioma: | Inglês
Conteúdo: | Three hundred and one accessions of six different Brachiaria species were analyzed, in which twenty-four morphologic characteristics were evaluated. Discriminant analysis based on principal components and Anderson's discriminant analysis were conduced for the six species. The graphic dispersion provided a clear view of the genetic divergence among the accessions and among the species. Three different groups were identified. Discrimination functions were established, allowing the classification of unknown individuals in one of the six studied species. The functions were consistent and resulted in the following rates of correct classification: B. brizantha (86.67%), B. decumbens (93.48%), B. humidicola (72.22%), B. jubata (96.77%), B. ruziziensis (92.86%) and B. dictyoneura (90.00%), thus contributing as an auxiliary approach in the identification of unknown individuals.
Palavras-Chave: | Divergência genética; Forage breeding; Genetic divergence.
Thesagro: | Brachiaria.
Thesaurus Nal: | discriminant analysis; multivariate analysis.
Categoria do assunto: | --
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (21732-1) - ADD - AP - -- - 631.05 - C - 2004.00095 - DIS