Analysis of heterosis components and prediction of hybrid means based on intergroup topcrosses in maize

Detalhes bibliográficos
Autor(a) principal: Moreira Júnior,Weber Neves
Data de Publicação: 2022
Outros Autores: Costa,Nayana Valéria, Chaves,Lázaro José
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Crop Breeding and Applied Biotechnology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332022000100207
Resumo: Abstract Diallel designs are widely used in plant breeding to select parents and to study trait inheritance. The present work aimed to present a method to evaluate two divergent groups of parents, in which one group is used as a tester of the contrasting group. Each parent is crossed with a balanced mixture of seeds from the parents of the other group, and the parents and topcrosses are experimentally evaluated. Two groups of ten inbred maize lines were used to obtain intergroup topcrosses and biparental crosses in a diallel scheme. The data were subjected to analysis of variance and parameter estimation using the two models. The results showed the reliability of the method for the evaluation of lines and prediction of means of hybrid populations and can be recommended when the number of parents to be evaluated is large, making it difficult to evaluate biparental crosses in a diallel scheme.
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spelling Analysis of heterosis components and prediction of hybrid means based on intergroup topcrosses in maizeTestcrossheterosiscombining abilitymaizesyntheticAbstract Diallel designs are widely used in plant breeding to select parents and to study trait inheritance. The present work aimed to present a method to evaluate two divergent groups of parents, in which one group is used as a tester of the contrasting group. Each parent is crossed with a balanced mixture of seeds from the parents of the other group, and the parents and topcrosses are experimentally evaluated. Two groups of ten inbred maize lines were used to obtain intergroup topcrosses and biparental crosses in a diallel scheme. The data were subjected to analysis of variance and parameter estimation using the two models. The results showed the reliability of the method for the evaluation of lines and prediction of means of hybrid populations and can be recommended when the number of parents to be evaluated is large, making it difficult to evaluate biparental crosses in a diallel scheme.Crop Breeding and Applied Biotechnology2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332022000100207Crop Breeding and Applied Biotechnology v.22 n.1 2022reponame:Crop Breeding and Applied Biotechnologyinstname:Sociedade Brasileira de Melhoramento de Plantasinstacron:CBAB10.1590/1984-70332022v22n1a09info:eu-repo/semantics/openAccessMoreira Júnior,Weber NevesCosta,Nayana ValériaChaves,Lázaro Joséeng2022-05-02T00:00:00Zoai:scielo:S1984-70332022000100207Revistahttps://cbab.sbmp.org.br/#ONGhttps://old.scielo.br/oai/scielo-oai.phpcbabjournal@gmail.com||cbab@ufv.br1984-70331518-7853opendoar:2022-05-02T00:00Crop Breeding and Applied Biotechnology - Sociedade Brasileira de Melhoramento de Plantasfalse
dc.title.none.fl_str_mv Analysis of heterosis components and prediction of hybrid means based on intergroup topcrosses in maize
title Analysis of heterosis components and prediction of hybrid means based on intergroup topcrosses in maize
spellingShingle Analysis of heterosis components and prediction of hybrid means based on intergroup topcrosses in maize
Moreira Júnior,Weber Neves
Testcross
heterosis
combining ability
maize
synthetic
title_short Analysis of heterosis components and prediction of hybrid means based on intergroup topcrosses in maize
title_full Analysis of heterosis components and prediction of hybrid means based on intergroup topcrosses in maize
title_fullStr Analysis of heterosis components and prediction of hybrid means based on intergroup topcrosses in maize
title_full_unstemmed Analysis of heterosis components and prediction of hybrid means based on intergroup topcrosses in maize
title_sort Analysis of heterosis components and prediction of hybrid means based on intergroup topcrosses in maize
author Moreira Júnior,Weber Neves
author_facet Moreira Júnior,Weber Neves
Costa,Nayana Valéria
Chaves,Lázaro José
author_role author
author2 Costa,Nayana Valéria
Chaves,Lázaro José
author2_role author
author
dc.contributor.author.fl_str_mv Moreira Júnior,Weber Neves
Costa,Nayana Valéria
Chaves,Lázaro José
dc.subject.por.fl_str_mv Testcross
heterosis
combining ability
maize
synthetic
topic Testcross
heterosis
combining ability
maize
synthetic
description Abstract Diallel designs are widely used in plant breeding to select parents and to study trait inheritance. The present work aimed to present a method to evaluate two divergent groups of parents, in which one group is used as a tester of the contrasting group. Each parent is crossed with a balanced mixture of seeds from the parents of the other group, and the parents and topcrosses are experimentally evaluated. Two groups of ten inbred maize lines were used to obtain intergroup topcrosses and biparental crosses in a diallel scheme. The data were subjected to analysis of variance and parameter estimation using the two models. The results showed the reliability of the method for the evaluation of lines and prediction of means of hybrid populations and can be recommended when the number of parents to be evaluated is large, making it difficult to evaluate biparental crosses in a diallel scheme.
publishDate 2022
dc.date.none.fl_str_mv 2022-01-01
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=S1984-70332022000100207
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332022000100207
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1984-70332022v22n1a09
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 Crop Breeding and Applied Biotechnology
publisher.none.fl_str_mv Crop Breeding and Applied Biotechnology
dc.source.none.fl_str_mv Crop Breeding and Applied Biotechnology v.22 n.1 2022
reponame:Crop Breeding and Applied Biotechnology
instname:Sociedade Brasileira de Melhoramento de Plantas
instacron:CBAB
instname_str Sociedade Brasileira de Melhoramento de Plantas
instacron_str CBAB
institution CBAB
reponame_str Crop Breeding and Applied Biotechnology
collection Crop Breeding and Applied Biotechnology
repository.name.fl_str_mv Crop Breeding and Applied Biotechnology - Sociedade Brasileira de Melhoramento de Plantas
repository.mail.fl_str_mv cbabjournal@gmail.com||cbab@ufv.br
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