Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Registro completo
Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Selection of cowpea progenies with enhanced drought-tolerance traits using principal component analysis.
Autores:  SOUSA, C. C.
SILVA, K. J. D. e
BASTOS, E. A.
ROCHA, M. de M.
Data:  2016-07-08
Ano:  2015
Palavras-chave:  Vigna unguiculata
Tolerância à seca
Seleção recorrente
Caupi
Análise multivariada
Resumo:  Vigna unguiculata (L.) Walp (cowpea) is a food crop with high nutritional value that is cultivated throughout tropical and subtropical regions of the world. The main constraint on high productivity of cowpea is water deficit, caused by the long periods of drought that occur in these regions. The aim of the present study was to select elite cowpea genotypes with enhanced drought tolerance, by applying principal component analysis to 219 first-cycle progenies obtained in a recurrent selection program. The experimental design comprised a simple 15 x 15 lattice with 450 plots, each of two rows of 10 plants. Plants were grown under water-deficit conditions by applying a water depth of 205 mm representing one-half of that required by cowpea. Variables assessed were flowering, maturation, pod length, number and mass of beans/pod, mass of 100 beans, and productivity/plot. Ten elite cowpea genotypes were selected, in which principal components 1 and 2 encompassed variables related to yield (pod length, beans/pod, and productivity/plot) and life precocity (flowering and maturation), respectively.

2015
Tipo:  Artigo em periódico indexado (ALICE)
Idioma:  Inglês
Identificador:  31318

http://www.alice.cnptia.embrapa.br/handle/doc/1048473

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/145215/1/Gmr6342.pdf
Editor:  Genetics and Molecular Research, v. 14, n. 4, p. 15981-15987, 2015.
Relação:  Embrapa Meio-Norte - Artigo em periódico indexado (ALICE)
Fechar
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional