Title:	Genetic divergence among Brachiara humidicola (Rendle) Schweick hybrids evaluated in the Western Brazilian Amazon.
Authors:	ASSIS, G. M. L. de SANTOS, C. F. dos FLORES, P. S. VALLE, C. B. do
Affiliation:	GISELLE MARIANO LESSA DE ASSIS, CPAF-AC; Cléia Florentino dos Santos, Universidade Federal do Acre (Ufac); PATRICIA SILVA FLORES, CPAF-AC; CACILDA BORGES DO VALLE, CNPGC.
Date Issued:	2014
Citation:	Crop Breeding and Applied Biotechnology, Viçosa, v. 14, n. 4, p. 224-231, 2014.
Description:	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.
Thesagro:	Melhoramento genético vegetal Gramínea forrageira Capim Quicuio Brachiaria humidicola Variação genética Método estatístico Análise estatística Características Agronômicas
NAL Thesaurus:	Plant breeding Forage grasses Genetic variation Agronomic traits Statistical analysis Multivariate analysis Analysis of variance
Keywords:	Análise de variância Teste de Scott-Knott Amazônia Ocidental Western Amazon Amazonia Occidental Análisis de multivarianza Análisis de varianza Análisis estadístico Fitomejoramiento Pastos forrajeros Variación genética
ISSN:	1518-7853 (impresso) / 1984-7033 (online)
DOI:	10.590/1984-70332014v14n4a35
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CPAF-AC)