Genetic parameters and selection indices of cowpea genotypes for green grain production

Detalhes bibliográficos
Autor(a) principal: Pessoa, Angela Maria dos Santos
Data de Publicação: 2023
Outros Autores: Bertini, Cândida Hermínia Campos de Magalhães, Castro, Érika Beatriz de Lima, Freitas, Leslyene Maria de, Araújo, Linda Brenna Ribeiro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Caatinga
Texto Completo: https://periodicos.ufersa.edu.br/caatinga/article/view/10879
Resumo: Cowpea is a legume that is grown worldwide and used for different purposes, especially as green grains. However, considering the low availability of cowpea cultivars for green grain production, selecting genotypes that have better traits for this purpose is necessary. In this context, the objective of this study was to estimate genetic parameters and evaluate different selection indices for identifying superior cowpea genotypes and subsidizing cowpea breeding programs focused on green grain production. A field experiment was conducted at the Center of Agricultural Sciences of the Federal University of Ceará (UFC), Ceará, Brazil. The treatments consisted of 42 cowpea genotypes from the Active Germplasm Bank of the UFC. Fourteen traits were used for characterization. The experiment was conducted in an augmented block design with four controls. The data obtained were subjected to analysis of variance, and genetic parameters, correlations, and selection indices were determined. The traits days to flowering (DFL), days to fruiting (DFR), green pod weight (GPW), green pod width (GW), green pod length (GPL), green pod thickness (GPT), number of grains per pod (NGP), and green grain thickness (GGT) showed heritability higher than 70%, indicating that selection in an early generation is favorable. The genetic correlations between the trait pairs DFL×DFR, GPW×GPL, and GW×GGT were higher than the phenotypic and environmental correlations. Genotypes CE-228, CE-688, CE-994, CE-165, CE-796, and BRS-Paraguaçu showed simultaneous superiority for the evaluated traits and are the most appropriate for green grain production.
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spelling Genetic parameters and selection indices of cowpea genotypes for green grain productionParâmetros genéticos e índices de seleção de genótipos de feijão-caupi para produção de grãos verdes Melhoramento de plantas. Variabilidade genética. Vigna unguiculata.Plant breeding. Genetic variability. Vigna unguiculata.Cowpea is a legume that is grown worldwide and used for different purposes, especially as green grains. However, considering the low availability of cowpea cultivars for green grain production, selecting genotypes that have better traits for this purpose is necessary. In this context, the objective of this study was to estimate genetic parameters and evaluate different selection indices for identifying superior cowpea genotypes and subsidizing cowpea breeding programs focused on green grain production. A field experiment was conducted at the Center of Agricultural Sciences of the Federal University of Ceará (UFC), Ceará, Brazil. The treatments consisted of 42 cowpea genotypes from the Active Germplasm Bank of the UFC. Fourteen traits were used for characterization. The experiment was conducted in an augmented block design with four controls. The data obtained were subjected to analysis of variance, and genetic parameters, correlations, and selection indices were determined. The traits days to flowering (DFL), days to fruiting (DFR), green pod weight (GPW), green pod width (GW), green pod length (GPL), green pod thickness (GPT), number of grains per pod (NGP), and green grain thickness (GGT) showed heritability higher than 70%, indicating that selection in an early generation is favorable. The genetic correlations between the trait pairs DFL×DFR, GPW×GPL, and GW×GGT were higher than the phenotypic and environmental correlations. Genotypes CE-228, CE-688, CE-994, CE-165, CE-796, and BRS-Paraguaçu showed simultaneous superiority for the evaluated traits and are the most appropriate for green grain production.O feijão-caupi é uma das leguminosas mais cultivadas no mundo, sendo comercializado para diversas finalidades, como o feijão verde. Considerando a reduzida disponibilidade de cultivares de feijão-caupi para o mercado de feijão verde, é necessário selecionar genótipos que ofereçam características intrínsecas para este fim. Assim, objetivou-se estimar parâmetros genéticos e índice de seleção na identificação de genótipos superiores de feijão-caupi, fornecendo subsídios para programas de melhoramento visando a produção de grãos verdes. O experimento foi conduzido em campo, no Centro de Ciências Agrárias da Universidade Federal do Ceará (UFC), Ceará, Brasil. Os tratamentos consistiram de 42 genótipos de feijão-caupi do Banco Ativo de Germoplasma da UFC. Quatorze descritores foram utilizados para a caracterização. O experimento foi montado em um delineamento de blocos aumentados, com quatro testemunhas adicionais. Foi realizada análise de variância, parâmetros genéticos, correlação e índices de seleção. As características de dias para floração, dias para frutificação, peso da vagem verde, largura da vagem verde, comprimento da vagem verde, espessura da vagem verde, número de grãos por vagem e espessura do grão verde apresentaram valores de herdabilidade acima de 70%, indicando que a seleção em geração precoce com base nestas características é favorável. As correlações genéticas entre os pares de caracteres DFL×DFR, GPW×GPL, e GW×GGT foram superiores às correlações fenotípicas e ambientais. Os genótipos CE-228, CE-688, CE-994, CE-165, CE-796 e BRS-Paraguaçu apresentam superioridade simultânea para as características avaliadas e os mais adequados para o mercado de grãos e vagens verdes.Universidade Federal Rural do Semi-Árido2023-02-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/1087910.1590/1983-21252023v36n208rcREVISTA CAATINGA; Vol. 36 No. 2 (2023); 310-319Revista Caatinga; v. 36 n. 2 (2023); 310-3191983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/10879/11140Copyright (c) 2023 Revista Caatingainfo:eu-repo/semantics/openAccessPessoa, Angela Maria dos SantosBertini, Cândida Hermínia Campos de MagalhãesCastro, Érika Beatriz de LimaFreitas, Leslyene Maria deAraújo, Linda Brenna Ribeiro2023-07-27T11:53:54Zoai:ojs.periodicos.ufersa.edu.br:article/10879Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:59.239447Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true
dc.title.none.fl_str_mv Genetic parameters and selection indices of cowpea genotypes for green grain production
Parâmetros genéticos e índices de seleção de genótipos de feijão-caupi para produção de grãos verdes
title Genetic parameters and selection indices of cowpea genotypes for green grain production
spellingShingle Genetic parameters and selection indices of cowpea genotypes for green grain production
Pessoa, Angela Maria dos Santos
Melhoramento de plantas. Variabilidade genética. Vigna unguiculata.
Plant breeding. Genetic variability. Vigna unguiculata.
title_short Genetic parameters and selection indices of cowpea genotypes for green grain production
title_full Genetic parameters and selection indices of cowpea genotypes for green grain production
title_fullStr Genetic parameters and selection indices of cowpea genotypes for green grain production
title_full_unstemmed Genetic parameters and selection indices of cowpea genotypes for green grain production
title_sort Genetic parameters and selection indices of cowpea genotypes for green grain production
author Pessoa, Angela Maria dos Santos
author_facet Pessoa, Angela Maria dos Santos
Bertini, Cândida Hermínia Campos de Magalhães
Castro, Érika Beatriz de Lima
Freitas, Leslyene Maria de
Araújo, Linda Brenna Ribeiro
author_role author
author2 Bertini, Cândida Hermínia Campos de Magalhães
Castro, Érika Beatriz de Lima
Freitas, Leslyene Maria de
Araújo, Linda Brenna Ribeiro
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Pessoa, Angela Maria dos Santos
Bertini, Cândida Hermínia Campos de Magalhães
Castro, Érika Beatriz de Lima
Freitas, Leslyene Maria de
Araújo, Linda Brenna Ribeiro
dc.subject.por.fl_str_mv Melhoramento de plantas. Variabilidade genética. Vigna unguiculata.
Plant breeding. Genetic variability. Vigna unguiculata.
topic Melhoramento de plantas. Variabilidade genética. Vigna unguiculata.
Plant breeding. Genetic variability. Vigna unguiculata.
description Cowpea is a legume that is grown worldwide and used for different purposes, especially as green grains. However, considering the low availability of cowpea cultivars for green grain production, selecting genotypes that have better traits for this purpose is necessary. In this context, the objective of this study was to estimate genetic parameters and evaluate different selection indices for identifying superior cowpea genotypes and subsidizing cowpea breeding programs focused on green grain production. A field experiment was conducted at the Center of Agricultural Sciences of the Federal University of Ceará (UFC), Ceará, Brazil. The treatments consisted of 42 cowpea genotypes from the Active Germplasm Bank of the UFC. Fourteen traits were used for characterization. The experiment was conducted in an augmented block design with four controls. The data obtained were subjected to analysis of variance, and genetic parameters, correlations, and selection indices were determined. The traits days to flowering (DFL), days to fruiting (DFR), green pod weight (GPW), green pod width (GW), green pod length (GPL), green pod thickness (GPT), number of grains per pod (NGP), and green grain thickness (GGT) showed heritability higher than 70%, indicating that selection in an early generation is favorable. The genetic correlations between the trait pairs DFL×DFR, GPW×GPL, and GW×GGT were higher than the phenotypic and environmental correlations. Genotypes CE-228, CE-688, CE-994, CE-165, CE-796, and BRS-Paraguaçu showed simultaneous superiority for the evaluated traits and are the most appropriate for green grain production.
publishDate 2023
dc.date.none.fl_str_mv 2023-02-28
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufersa.edu.br/caatinga/article/view/10879
10.1590/1983-21252023v36n208rc
url https://periodicos.ufersa.edu.br/caatinga/article/view/10879
identifier_str_mv 10.1590/1983-21252023v36n208rc
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://periodicos.ufersa.edu.br/caatinga/article/view/10879/11140
dc.rights.driver.fl_str_mv Copyright (c) 2023 Revista Caatinga
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2023 Revista Caatinga
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal Rural do Semi-Árido
publisher.none.fl_str_mv Universidade Federal Rural do Semi-Árido
dc.source.none.fl_str_mv REVISTA CAATINGA; Vol. 36 No. 2 (2023); 310-319
Revista Caatinga; v. 36 n. 2 (2023); 310-319
1983-2125
0100-316X
reponame:Revista Caatinga
instname:Universidade Federal Rural do Semi-Árido (UFERSA)
instacron:UFERSA
instname_str Universidade Federal Rural do Semi-Árido (UFERSA)
instacron_str UFERSA
institution UFERSA
reponame_str Revista Caatinga
collection Revista Caatinga
repository.name.fl_str_mv Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)
repository.mail.fl_str_mv patricio@ufersa.edu.br|| caatinga@ufersa.edu.br
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