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dc.contributor.authorSOUSA, C. C.pt_BR
dc.contributor.authorSILVA, K. J. D. ept_BR
dc.contributor.authorBASTOS, E. A.pt_BR
dc.contributor.authorROCHA, M. de M.pt_BR
dc.date.accessioned2016-07-08T11:11:11Zpt_BR
dc.date.available2016-07-08T11:11:11Zpt_BR
dc.date.created2016-07-08pt_BR
dc.date.issued2015pt_BR
dc.identifier.citationGenetics and Molecular Research, v. 14, n. 4, p. 15981-15987, 2015.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1048473pt_BR
dc.descriptionVigna 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.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectTolerância à secapt_BR
dc.subjectCaupipt_BR
dc.subjectAnálise multivariadapt_BR
dc.titleSelection of cowpea progenies with enhanced drought-tolerance traits using principal component analysis.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2016-07-27T11:11:11Zpt_BR
dc.subject.thesagroSeleção Recorrentept_BR
dc.subject.thesagroVigna Unguiculatapt_BR
riaa.ainfo.id1048473pt_BR
riaa.ainfo.lastupdate2016-07-27pt_BR
dc.contributor.institutionC. C. SOUSA, UFMA; KAESEL JACKSON DAMASCENO E SILVA, CPAMN; EDSON ALVES BASTOS, CPAMN; MAURISRAEL DE MOURA ROCHA, CPAMN.pt_BR
Aparece nas coleções:Artigo em periódico indexado (CPAMN)

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