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Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Forage peanut (Arachis spp.) genetic evaluation and selection.
Autores:  SIMEÃO, R. M.
ASSIS, G. M. L.
MONTAGNER, D. B.
FERREIRA, R. C. U.
Data:  2017-01-26
Ano:  2016
Palavras-chave:  Amendoim forrageiro
Paraêmtro fenotípico
Pastagem
Leguminosa forrageira
Parâmetro genético
Cerrado
Arachis pintoi
Resumo:  Forage peanut improvement for use in grass?legume mixtures is expected to have a great impact on the sustainability of Brazilian livestock production. Eighteen cloned Arachis spp. ecotypes were evaluated under clipping in a Brazilian Cerrado region and results analysed using a mixed model methodology. The objective was to estimate genetic and phenotypic parameters and to select the best ecotypes based on selection index applied on their predicted genotypic value. The traits of total dry-matter (DM) and leaf DM yield presented moderate (0_30 < h2g < 0_50) to high (>0_50) broad-sense heritability, in contrast to the low genetic variability in nutritional quality-associated traits. Ecotypes of Arachis spp. contained average crude protein concentrations of 224 g kg _1 DM in leaves and 138 g kg _1 DM in stems, supporting the potential role of these species to overcome the low protein content in Cerrado pastures. The correlations between yield traits and traits associated with low nutritional value in leaves were consistently significant and positive. Genetic correlations among all the yield traits evaluated during the rainy or dry seasons were significant and positive. The ecotypes were ranked based on selection index. The next step is to validate long-term selection of grass?Arachis in combination with pastures under competition and adjusted grazing in the Cerrado region.

2016
Tipo:  Artigo em periódico indexado (ALICE)
Idioma:  Inglês
Identificador:  16696

http://www.alice.cnptia.embrapa.br/handle/doc/1061852

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/154020/1/Forage-peanut-arachis-spp..pdf

10.1111/gfs.12242.
Editor:  Grass and Forage Science, New Jersey, p. 1-11, July 2016. Disponível em: <http://onlinelibrary.wiley.com/doi/10.1111/gfs.12242/pdf>. Acesso em: 26 set. 2016.
Relação:  Embrapa Gado de Corte - Artigo em periódico indexado (ALICE)
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