Combining abilities and inbreeding depression in commercial maize hybrids
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19709 |
Resumo: | The objective of this study was to evaluate the combining ability and inbreeding depression of commercial maize hybrids for agricultural traits. Twenty-two commercial maize hybrids, 96 F1 crosses from a partial diallel scheme, 22 S1 populations and 4 controls were evaluated in a 12x12 simples square lattice experimental setup, totaling 144 treatments, in the municipality of Sabáudia (PR), Brazil, for harvests from 2011/2012 and 2012/2013. Three traits were evaluated: grain yield, plant height and ear height. The Griffing method (1956) was applied for the evaluation of the general combining ability (GCA) and specific combining ability (SCA). The 30B39, 30K64 and 30B30 hybrids showed increased yield, 30F53 and P1630 showed reduced plant height and AG9040 and AG7010 showed reduced ear height. These hybrids can be recommended for the extraction of inbred lines and formation of composites followed by intrapopulation selection. The combinations 30B39 x AG8088, 30B39 x AG9045 and P1630 x AG8021 showed desirable SCA effects for grain yield, plant height and ear height and are recommended for use in reciprocal recurrent selection programs. High magnitudes of inbreeding depression were verified for yield and lower values for inbreeding depression for plant and ear heights. Thus, strategies are recommended for interpopulation breeding accompanied by inbred lines extraction. |
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Semina. Ciências Agrárias (Online) |
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Combining abilities and inbreeding depression in commercial maize hybridsCapacidades combinatórias e depressão por endogamia de híbridos comerciais de milhoZea mays L.Diallel analysisHeterosisGrain yield.Zea mays L.Análise dialélicaHeteroseRendimento de grãos.The objective of this study was to evaluate the combining ability and inbreeding depression of commercial maize hybrids for agricultural traits. Twenty-two commercial maize hybrids, 96 F1 crosses from a partial diallel scheme, 22 S1 populations and 4 controls were evaluated in a 12x12 simples square lattice experimental setup, totaling 144 treatments, in the municipality of Sabáudia (PR), Brazil, for harvests from 2011/2012 and 2012/2013. Three traits were evaluated: grain yield, plant height and ear height. The Griffing method (1956) was applied for the evaluation of the general combining ability (GCA) and specific combining ability (SCA). The 30B39, 30K64 and 30B30 hybrids showed increased yield, 30F53 and P1630 showed reduced plant height and AG9040 and AG7010 showed reduced ear height. These hybrids can be recommended for the extraction of inbred lines and formation of composites followed by intrapopulation selection. The combinations 30B39 x AG8088, 30B39 x AG9045 and P1630 x AG8021 showed desirable SCA effects for grain yield, plant height and ear height and are recommended for use in reciprocal recurrent selection programs. High magnitudes of inbreeding depression were verified for yield and lower values for inbreeding depression for plant and ear heights. Thus, strategies are recommended for interpopulation breeding accompanied by inbred lines extraction.O objetivo do trabalho foi avaliar a capacidade combinatória e a depressão endogâmica de híbridos de milho, para caracteres agronômicos. Foram avaliados 22 híbridos comerciais, 96 combinações F1 oriundas de um dialelo parcial, 22 populações S1 e 4 testemunhas, avaliados em dois experimentos delineados em látice quadrado 12x12 totalizando 144 treatments conduzidos em Sabáudia (PR), nas safras 2011/2012 e 2012/2013. Foram avaliados três caracteres: produtividade, altura de plantas e altura de espigas. O método de Griffing (1956) foi aplicado para a avaliação da capacidade geral (CGC) e específica (CEC) de combinação. Destacaram-se os híbridos 30B39, 30K64 e 30B30 para aumentar a produtividade, 30F53 e P1630 para reduzir a altura de plantas e AG9040 e AG7010 para a redução de altura de espigas. Tais híbridos podem ser recomendados para extração de linhagens e formação de compostos seguida de seleção intrapopulacional. As combinações 30B39 x AG8088, 30B39 x AG9045 e P1630 x AG8021 apresentaram efeitos de CEC desejáveis para rendimento de grãos, altura de plantas e altura de espigas, sendo recomendadas para uso em programas de melhoramento interpopulacional. Foram verificadas altas magnitudes de depressão endogâmica para a produtividade e menores valores de depressão para a altura de plantas e de espigas. Assim, são recomendadas estratégias de melhoramento interpopulacional acompanhadas de extração de linhagens.UEL2015-12-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa de campo; melhoramento genético.application/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1970910.5433/1679-0359.2015v36n6Supl2p4133Semina: Ciências Agrárias; Vol. 36 No. 6Supl2 (2015); 4133-4150Semina: Ciências Agrárias; v. 36 n. 6Supl2 (2015); 4133-41501679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19709/17534http://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessSenhorinho, Henrique José CamargoPinto, Ronald José BarthScapim, Carlos AlbertoMilani, Klayton FlávioNihei, Thiago Hideyo2022-12-02T14:38:36Zoai:ojs.pkp.sfu.ca:article/19709Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-12-02T14:38:36Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Combining abilities and inbreeding depression in commercial maize hybrids Capacidades combinatórias e depressão por endogamia de híbridos comerciais de milho |
title |
Combining abilities and inbreeding depression in commercial maize hybrids |
spellingShingle |
Combining abilities and inbreeding depression in commercial maize hybrids Senhorinho, Henrique José Camargo Zea mays L. Diallel analysis Heterosis Grain yield. Zea mays L. Análise dialélica Heterose Rendimento de grãos. |
title_short |
Combining abilities and inbreeding depression in commercial maize hybrids |
title_full |
Combining abilities and inbreeding depression in commercial maize hybrids |
title_fullStr |
Combining abilities and inbreeding depression in commercial maize hybrids |
title_full_unstemmed |
Combining abilities and inbreeding depression in commercial maize hybrids |
title_sort |
Combining abilities and inbreeding depression in commercial maize hybrids |
author |
Senhorinho, Henrique José Camargo |
author_facet |
Senhorinho, Henrique José Camargo Pinto, Ronald José Barth Scapim, Carlos Alberto Milani, Klayton Flávio Nihei, Thiago Hideyo |
author_role |
author |
author2 |
Pinto, Ronald José Barth Scapim, Carlos Alberto Milani, Klayton Flávio Nihei, Thiago Hideyo |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Senhorinho, Henrique José Camargo Pinto, Ronald José Barth Scapim, Carlos Alberto Milani, Klayton Flávio Nihei, Thiago Hideyo |
dc.subject.por.fl_str_mv |
Zea mays L. Diallel analysis Heterosis Grain yield. Zea mays L. Análise dialélica Heterose Rendimento de grãos. |
topic |
Zea mays L. Diallel analysis Heterosis Grain yield. Zea mays L. Análise dialélica Heterose Rendimento de grãos. |
description |
The objective of this study was to evaluate the combining ability and inbreeding depression of commercial maize hybrids for agricultural traits. Twenty-two commercial maize hybrids, 96 F1 crosses from a partial diallel scheme, 22 S1 populations and 4 controls were evaluated in a 12x12 simples square lattice experimental setup, totaling 144 treatments, in the municipality of Sabáudia (PR), Brazil, for harvests from 2011/2012 and 2012/2013. Three traits were evaluated: grain yield, plant height and ear height. The Griffing method (1956) was applied for the evaluation of the general combining ability (GCA) and specific combining ability (SCA). The 30B39, 30K64 and 30B30 hybrids showed increased yield, 30F53 and P1630 showed reduced plant height and AG9040 and AG7010 showed reduced ear height. These hybrids can be recommended for the extraction of inbred lines and formation of composites followed by intrapopulation selection. The combinations 30B39 x AG8088, 30B39 x AG9045 and P1630 x AG8021 showed desirable SCA effects for grain yield, plant height and ear height and are recommended for use in reciprocal recurrent selection programs. High magnitudes of inbreeding depression were verified for yield and lower values for inbreeding depression for plant and ear heights. Thus, strategies are recommended for interpopulation breeding accompanied by inbred lines extraction. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-12-16 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa de campo; melhoramento genético. |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19709 10.5433/1679-0359.2015v36n6Supl2p4133 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19709 |
identifier_str_mv |
10.5433/1679-0359.2015v36n6Supl2p4133 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19709/17534 |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 36 No. 6Supl2 (2015); 4133-4150 Semina: Ciências Agrárias; v. 36 n. 6Supl2 (2015); 4133-4150 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306072786206720 |