Data/hora: 25/06/2024 17:35:46

Biblioteca(s): | Embrapa Meio-Norte.
Data corrente: | 16/06/2015
Data da última atualização: | 25/05/2022
Autoria: | COSTA, E. M. R.; SILVA, K. J. D. e; ROCHA, M. de M.; MEDEIROS, A. M.; ANUNCIAÇÃO FILHO, C. J.
Afiliação: | 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.
Título: | Genetic divergence among African cowpea lines based on morphoagronomic traits.
Ano de publicação: | 2013
Fonte/Imprenta: | Genetics and Molecular Research, Ribeirão Preto, v. 12, n. 4, p. 6773-6781, Dec. 2013.
DOI: | http://dx.doi.org/10.4238/2013.December.16.3
Idioma: | Inglês
Conteúdo: | 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%).
Palavras-Chave: | Acessos de caupi; Cowpea accessions; Germplasm bank.
Thesagro: | Banco de germoplasma; Feijao de corda; Método estatístico; Vigna unguiculata.
Thesaurus Nal: | Multivariate analysis.
Categoria do assunto: | G Melhoramento Genético
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/125435/1/ArtigoKaeselGMR2013.pdf
Registro original: | Embrapa Meio-Norte (CPAMN)
Exemplares: | CPAMN - (31069-1) - UPC - AP - PP -  -  - SP 46/15 - DIS