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Registro Completo |
Biblioteca(s): |
Embrapa Meio-Norte. |
Data corrente: |
08/07/2016 |
Data da última atualização: |
23/05/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SOUSA, C. C.; SILVA, K. J. D. e; BASTOS, E. A.; ROCHA, M. de M. |
Afiliação: |
C. C. SOUSA, UFMA; KAESEL JACKSON DAMASCENO E SILVA, CPAMN; EDSON ALVES BASTOS, CPAMN; MAURISRAEL DE MOURA ROCHA, CPAMN. |
Título: |
Selection of cowpea progenies with enhanced drought-tolerance traits using principal component analysis. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Genetics and Molecular Research, v. 14, n. 4, p. 15981-15987, 2015. |
Idioma: |
Inglês |
Conteúdo: |
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. |
Palavras-Chave: |
Análise multivariada; Caupi; Tolerância à seca. |
Thesagro: |
Seleção Recorrente; Vigna Unguiculata. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/145215/1/Gmr6342.pdf
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Marc: |
LEADER 01783naa a2200217 a 4500 001 2048473 005 2022-05-23 008 2015 bl uuuu u00u1 u #d 100 1 $aSOUSA, C. C. 245 $aSelection of cowpea progenies with enhanced drought-tolerance traits using principal component analysis.$h[electronic resource] 260 $c2015 520 $aVigna 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. 650 $aSeleção Recorrente 650 $aVigna Unguiculata 653 $aAnálise multivariada 653 $aCaupi 653 $aTolerância à seca 700 1 $aSILVA, K. J. D. e 700 1 $aBASTOS, E. A. 700 1 $aROCHA, M. de M. 773 $tGenetics and Molecular Research$gv. 14, n. 4, p. 15981-15987, 2015.
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