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Title: Genetic divergence among African cowpea lines based on morphoagronomic traits.
Authors: COSTA, E. M. R.
SILVA, K. J. D. e
ROCHA, M. de M.
Affiliation: E.M.R. Costa, Universidade Federal Rural de Pernambuco, Departamento de Agronomia.; KAESEL JACKSON DAMASCENO E SILVA, CPAMN; MAURISRAEL DE MOURA ROCHA, CPAMN; A.M. Medeiros, Universidade Federal do Piauí.; C.J. Anunciação Filho, Universidade Federal Rural de Pernambuco, Departamento de Agronomia.
Date Issued: 2013
Citation: Genetics and Molecular Research, Ribeirão Preto, v. 12, n. 4, p. 6773-6781, Dec. 2013.
Description: The aim of this study was to estimate the genetic divergence between African cowpea lines from the Cowpea Germplasm Bank of Embrapa Meio-Norte, Brazil. The morphoagronomic diversity of 57 cowpea lines was assessed using multivariate analysis. The germplasm was evaluated in August 2009 using a randomized block design with three replications based on the following traits: number of pods per peduncle, pod length (PL), number of grains per pod (NGP), grain length (GRL), grain width, 100-grain weight (W100G), and yield. The heritability values of the traits PL, NGP, GRL, and W100G were all higher than 70%, indicating the possibility of genetic progress with selection. The crosses between the lines IT82D-889 and IT89KD-245, IT85F-1380 and IT89KD-245, and IT89KD-245 and IT98K-1092-1 could result in promising genetic combinations. The characteristics that contributed most to genetic divergence were W100G (49.7%), PL (16.7%), GRL (12.0%), and NGP (9.7%).
Thesagro: Método estatístico
Banco de germoplasma
Feijao de corda
Vigna unguiculata
NAL Thesaurus: Multivariate analysis
Keywords: Acessos de caupi
Germplasm bank
Cowpea accessions
Type of Material: Artigo de periódico
Access: openAccess
Appears in Collections:Artigo em periódico indexado (CPAMN)

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