Selection gain and interrelations between agronomic traits in wheat F5 genotypes

Detalhes bibliográficos
Autor(a) principal: Meier,Carine
Data de Publicação: 2019
Outros Autores: Meira,Daniela, Marchioro,Volmir Sergio, Olivoto,Tiago, Klein,Luís Antônio, Souza,Velci Queiroz de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Ceres
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2019000400271
Resumo: ABSTRACT This work aimed to estimate the variance components and genetic parameters, the selection gain, and the cause and effect relationships among traits in order to identify important traits for direct and indirect selection of wheat (Triticum aestivum L.) lines. Three strategies were used to obtain selection gains: direct and indirect selection, an index based on “ranks,” and the Smith and Hazel index. In the 2017 crop season in Brazil, 420 wheat lines from the F5 generation were conducted in families with intercalary controls. High heritability of spike weight, number of kernels, and total kernel weight resulted in the best direct selection gains. The selection of plants with a high number of tillers resulted in grain yield improvement. The use of selection indexes is important in advanced wheat lines; they promote genetic gains distributed among agronomic traits.
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spelling Selection gain and interrelations between agronomic traits in wheat F5 genotypescorrelationgenetic parametersselection gainsTriticum aestivum LABSTRACT This work aimed to estimate the variance components and genetic parameters, the selection gain, and the cause and effect relationships among traits in order to identify important traits for direct and indirect selection of wheat (Triticum aestivum L.) lines. Three strategies were used to obtain selection gains: direct and indirect selection, an index based on “ranks,” and the Smith and Hazel index. In the 2017 crop season in Brazil, 420 wheat lines from the F5 generation were conducted in families with intercalary controls. High heritability of spike weight, number of kernels, and total kernel weight resulted in the best direct selection gains. The selection of plants with a high number of tillers resulted in grain yield improvement. The use of selection indexes is important in advanced wheat lines; they promote genetic gains distributed among agronomic traits.Universidade Federal de Viçosa2019-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2019000400271Revista Ceres v.66 n.4 2019reponame:Revista Ceresinstname:Universidade Federal de Viçosa (UFV)instacron:UFV10.1590/0034-737x201966040005info:eu-repo/semantics/openAccessMeier,CarineMeira,DanielaMarchioro,Volmir SergioOlivoto,TiagoKlein,Luís AntônioSouza,Velci Queiroz deeng2019-09-27T00:00:00ZRevista
dc.title.none.fl_str_mv Selection gain and interrelations between agronomic traits in wheat F5 genotypes
title Selection gain and interrelations between agronomic traits in wheat F5 genotypes
spellingShingle Selection gain and interrelations between agronomic traits in wheat F5 genotypes
Meier,Carine
correlation
genetic parameters
selection gains
Triticum aestivum L
title_short Selection gain and interrelations between agronomic traits in wheat F5 genotypes
title_full Selection gain and interrelations between agronomic traits in wheat F5 genotypes
title_fullStr Selection gain and interrelations between agronomic traits in wheat F5 genotypes
title_full_unstemmed Selection gain and interrelations between agronomic traits in wheat F5 genotypes
title_sort Selection gain and interrelations between agronomic traits in wheat F5 genotypes
author Meier,Carine
author_facet Meier,Carine
Meira,Daniela
Marchioro,Volmir Sergio
Olivoto,Tiago
Klein,Luís Antônio
Souza,Velci Queiroz de
author_role author
author2 Meira,Daniela
Marchioro,Volmir Sergio
Olivoto,Tiago
Klein,Luís Antônio
Souza,Velci Queiroz de
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Meier,Carine
Meira,Daniela
Marchioro,Volmir Sergio
Olivoto,Tiago
Klein,Luís Antônio
Souza,Velci Queiroz de
dc.subject.por.fl_str_mv correlation
genetic parameters
selection gains
Triticum aestivum L
topic correlation
genetic parameters
selection gains
Triticum aestivum L
dc.description.none.fl_txt_mv ABSTRACT This work aimed to estimate the variance components and genetic parameters, the selection gain, and the cause and effect relationships among traits in order to identify important traits for direct and indirect selection of wheat (Triticum aestivum L.) lines. Three strategies were used to obtain selection gains: direct and indirect selection, an index based on “ranks,” and the Smith and Hazel index. In the 2017 crop season in Brazil, 420 wheat lines from the F5 generation were conducted in families with intercalary controls. High heritability of spike weight, number of kernels, and total kernel weight resulted in the best direct selection gains. The selection of plants with a high number of tillers resulted in grain yield improvement. The use of selection indexes is important in advanced wheat lines; they promote genetic gains distributed among agronomic traits.
description ABSTRACT This work aimed to estimate the variance components and genetic parameters, the selection gain, and the cause and effect relationships among traits in order to identify important traits for direct and indirect selection of wheat (Triticum aestivum L.) lines. Three strategies were used to obtain selection gains: direct and indirect selection, an index based on “ranks,” and the Smith and Hazel index. In the 2017 crop season in Brazil, 420 wheat lines from the F5 generation were conducted in families with intercalary controls. High heritability of spike weight, number of kernels, and total kernel weight resulted in the best direct selection gains. The selection of plants with a high number of tillers resulted in grain yield improvement. The use of selection indexes is important in advanced wheat lines; they promote genetic gains distributed among agronomic traits.
publishDate 2019
dc.date.none.fl_str_mv 2019-08-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2019000400271
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2019000400271
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0034-737x201966040005
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Universidade Federal de Viçosa
publisher.none.fl_str_mv Universidade Federal de Viçosa
dc.source.none.fl_str_mv Revista Ceres v.66 n.4 2019
reponame:Revista Ceres
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str Revista Ceres
collection Revista Ceres
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1728006783479316480

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