Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1061778
Título: Genetic evaluation and selection index in tetraploid Brachiaria ruziziensis.
Autoria: SIMEÃO, R.
SILVA, A.
VALLE, C.
RESENDE, M. D.
MEDEIROS, S.
Afiliação: ROSANGELA MARIA SIMEAO RESENDE, CNPGC; ADRIANE SILVA, Universidade Católica Dom Bosco; CACILDA BORGES DO VALLE, CNPGC; MARCOS DEON VILELA DE RESENDE, CNPF; SERGIO RAPOSO DE MEDEIROS, CNPGC.
Ano de publicação: 2016
Referência: Plant Breeding, v. 135, n. 2, p. 246-253, Apr. 2016.
Conteúdo: Half-sib progenies of congo signal grass (Brachiaria ruziziensis Germain & Evrard, syn.: B. eminii, Urochloa ruziziensis) were analysed using a mixed model methodology. The objective was to estimate genetic and phenotypic parameters, predict individual genetic values, estimate correlations between characters associated with biomass production and forage nutritive value and use this information to determine the economic weights to compare three multiplicative selection indices. Individual narrow-sense heritabilities corrected for inbreeding varied from 0.14 to 0.91 for characters associated with biomass production and from 0.04 a 0.24 for nutritional value characters. The correlations among characters associated with annual biomass production were of high magnitude. In contrast, biomass production characters were negatively correlated with crude protein, acid detergent fibre and lignin. Total dry matter yield, crude protein and regrowth ability were weighted separately in evaluations during wet and dry season or annually in selection indices. Index that considered characters annually resulted in better distribution of forage production along theyear than indices that separated wet and dry season production.
Thesagro: Planta forrageira
Parâmetro genético
Teste de progenie
Brachiaria
NAL Thesaurus: Forage grasses
Nutritive value
Progeny testing
Tropical grasslands
Palavras-chave: Valor nutricional
Genetic parameters
Mixed models
Yelds
Digital Object Identifier: 10.1111/pbr.12353
Tipo do material: Artigo de periódico
Acesso: openAccess
Aparece nas coleções:Artigo em periódico indexado (CNPGC)

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