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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas; Embrapa Gado de Corte. |
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Data corrente: |
22/06/2016 |
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Data da última atualização: |
06/03/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SIMEÃO, R.; SILVA, A.; VALLE, C.; RESENDE, M. D.; MEDEIROS, S. |
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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. |
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Título: |
Genetic evaluation and selection index in tetraploid Brachiaria ruziziensis. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Plant Breeding, v. 135, n. 2, p. 246-253, Apr. 2016. |
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DOI: |
10.1111/pbr.12353 |
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Idioma: |
Inglês |
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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. |
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Palavras-Chave: |
Genetic parameters; Mixed models; Valor nutricional; Yelds. |
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Thesagro: |
Brachiaria; Parâmetro genético; Planta forrageira; Teste de progenie. |
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Thesaurus Nal: |
Forage grasses; Nutritive value; Progeny testing; Tropical grasslands. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/153962/1/Genetic-evaluation-and-selection.pdf
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Marc: |
LEADER 02132naa a2200325 a 4500
001 2061778
005 2017-03-06
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1111/pbr.12353$2DOI
100 1 $aSIMEÃO, R.
245 $aGenetic evaluation and selection index in tetraploid Brachiaria ruziziensis.$h[electronic resource]
260 $c2016
520 $aHalf-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.
650 $aForage grasses
650 $aNutritive value
650 $aProgeny testing
650 $aTropical grasslands
650 $aBrachiaria
650 $aParâmetro genético
650 $aPlanta forrageira
650 $aTeste de progenie
653 $aGenetic parameters
653 $aMixed models
653 $aValor nutricional
653 $aYelds
700 1 $aSILVA, A.
700 1 $aVALLE, C.
700 1 $aRESENDE, M. D.
700 1 $aMEDEIROS, S.
773 $tPlant Breeding$gv. 135, n. 2, p. 246-253, Apr. 2016.
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Embrapa Gado de Corte (CNPGC) |
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