Title:	Flowering traits in tetraploid Brachiaria ruziziensis breeding.
Authors:	SIMEÃO, R. M. SILV, A. S. VALLE, C. B. do
Affiliation:	ROSANGELA MARIA SIMEAO RESENDE, CNPGC; ADRIANE SCHIO SILVA, Universidade Catolica Dom Bosco; CACILDA BORGES DO VALLE, CNPGC.
Date Issued:	2016
Citation:	Crop Breeding and Applied Biotechnology, v. 16, n. 2, p. 95-101, 2016.
Description:	Tetraploid Brachiaria ruziziensis genotypes which reproduce sexually are essential for the breeding of other species of the Brachiaria genus which reproduce by apomixis. Aiming at studying the available phenotypic and genetic variability in the breeding population of B. ruziziensis, it was estimated the parameters heritability and genetic and phenotypic correlations between the traits associated with flowering, and the traits responsible for forage yield and nutritional quality. Seventeen traits in 1180 individuals from 59 open pollinated families were studied, and the data were analyzed by mixed model methods. Individuals with sparse flowering presented higher breeding values for total dry matter, yield, and total number of panicles per plant than individuals with early or late flowering. Considering breeding population differences on flowering behavior, on individual narrow sense heritability and on genetic correlations between flowering, agronomic quality and nutritional quality traits have to be considered in intrapopulation breeding and in intrapopulational recurrent selection.
NAL Thesaurus:	Genetic variation Urochloa platyphylla
Keywords:	Flowering phenology Grass forage Mixed model
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPGC)