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Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Genetic divergence among Brachiara humidicola (Rendle) Schweick hybrids evaluated in the Western Brazilian Amazon.
Autores:  ASSIS, G. M. L. de
SANTOS, C. F. dos
FLORES, P. S.
VALLE, C. B. do
Data:  2014-12-02
Ano:  2014
Palavras-chave:  Análise de variância
Teste de Scott-Knott
Amazônia Ocidental
Western Amazon
Amazonia Occidental
Melhoramento genético vegetal
Gramínea forrageira
Capim Quicuio
Brachiaria humidicola
Variação genética
Características agronômicas
Método estatístico
Análise estatística
Plant breeding
Forage grasses
Genetic variation
Agronomic traits
Statistical analysis
Multivariate analysis
Analysis of variance
Fitomejoramiento
Pastos forrajeros
Variación genética
Características agronómicas
Análisis estadístico
Análisis de multivarianza
Análisis de varianza
Resumo:  The objectives of this study were to detect genetic variability among genotypes of Brachiara humidicola, study the genetic diversity and identify redundant variables in the discrimination of hybrids. Fifteen genotypes were evaluated for morphological, agronomic and nutritive characteristics in a randomized block design with six replications, in Rio Branco, Acre. Analysis of variance was performed, followed by the Scott-Knott test. Different techniques of multivariate analysis were used to study genetic diversity. Significant differences in plant performance were observed for agronomic and morphological characteristics, but not for nutritive value. There was consistency between the different clustering techniques. Four redundant characteristics were identified hat can be discarded. The existence of divergent and superior hybrids that can be used in recurrent selection (sexual) programs or can be released as new (apomictic) cultivars after testing for animal response was confirmed. The lack of genetic variability in bromatological traits indicates the need for differentiated selection strategies.

2014
Tipo:  Artigo em periódico indexado (ALICE)
Idioma:  Inglês
Identificador:  1518-7853 (impresso) / 1984-7033 (online)

25336

http://www.alice.cnptia.embrapa.br/handle/doc/1001395

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/112885/1/25336.pdf

10.590/1984-70332014v14n4a35
Editor:  Crop Breeding and Applied Biotechnology, Viçosa, v. 14, n. 4, p. 224-231, 2014.
Relação:  Embrapa Acre - Artigo em periódico indexado (ALICE)
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