Comparison of testers in the evaluation of S2 families of maize
Autor(a) principal: | |
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Data de Publicação: | 2000 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/5900 |
Resumo: | The objective of this work was to compare testers for discrimination and evaluation of the combining ability of 64 S2 families from the maize (Zea mays L.) hybrid CMS-39. The families were evaluated based on their performance per se and in crossing to three broad base testers. The testers were BR-201, a double hybrid, and two populations, CMS-50 and CMS-39. The topcrosses and S2 families were evaluated in four 8 x 8 lattices, with two replications, set up in adjacent areas on the experimental field of UFLA, Lavras, MG, Brazil, in 1996/97. General and specific combining ability, following partial diallel, and the heterosis of each topcross based on the performance of S2 families per se were estimated. Estimates of correlations were obtained from performance means of the S2 families and the hybrids with the different testers. It was only possible to discriminate the testers according to combining ability and heterosis estimates. Population CMS-50 was identified as the best tester. |
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Comparison of testers in the evaluation of S2 families of maizeComparação de testadores na avaliação de famílias S2 de milhoZea mays; breeding methods; hybrids; heterosisZea mays; métodos de melhoramento; híbridos; heteroseThe objective of this work was to compare testers for discrimination and evaluation of the combining ability of 64 S2 families from the maize (Zea mays L.) hybrid CMS-39. The families were evaluated based on their performance per se and in crossing to three broad base testers. The testers were BR-201, a double hybrid, and two populations, CMS-50 and CMS-39. The topcrosses and S2 families were evaluated in four 8 x 8 lattices, with two replications, set up in adjacent areas on the experimental field of UFLA, Lavras, MG, Brazil, in 1996/97. General and specific combining ability, following partial diallel, and the heterosis of each topcross based on the performance of S2 families per se were estimated. Estimates of correlations were obtained from performance means of the S2 families and the hybrids with the different testers. It was only possible to discriminate the testers according to combining ability and heterosis estimates. Population CMS-50 was identified as the best tester.O objetivo deste trabalho foi comparar testadores para discriminação e avaliação da capacidade de combinação de 64 famílias S2 de milho (Zea mays L.), provenientes do composto CMS-39. As famílias S2 foram avaliadas pelo seu desempenho per se e em cruzamento com três testadores de base genética ampla. Estes foram constituídos pelo híbrido duplo BR-201, pela própria população CMS-39 e a CMS-50. Os topcrosses e famílias S2 foram avaliados em quatro látices 8 x 8, com duas repetições, instalados em áreas contíguas no campo experimental do Departamento de Biologia da Universidade Federal de Lavras, em Lavras, MG, no ano agrícola 1996/97. Estimou-se a capacidade geral e específica de combinação, considerando-se dialelo parcial, e a heterose em relação às famílias S2 per se. Foram obtidas estimativas das correlações do desempenho médio das famílias S2 per se e dos seus híbridos com os diferentes testadores. Constatou-se que só foi possível discriminar os testadores de acordo com a capacidade de combinação e das estimativas das heteroses. A população CMS-50 destacou-se como a melhor testadora.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraElias, Haroldo TavaresCarvalho, Samuel PereiraAndré, Claudomiro Gomes Moura2000-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/5900Pesquisa Agropecuaria Brasileira; v.35, n.6, jun. 2000; 1135-1142Pesquisa Agropecuária Brasileira; v.35, n.6, jun. 2000; 1135-11421678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/5900/3004info:eu-repo/semantics/openAccess2014-08-19T15:59:35Zoai:ojs.seer.sct.embrapa.br:article/5900Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-08-19T15:59:35Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Comparison of testers in the evaluation of S2 families of maize Comparação de testadores na avaliação de famílias S2 de milho |
title |
Comparison of testers in the evaluation of S2 families of maize |
spellingShingle |
Comparison of testers in the evaluation of S2 families of maize Elias, Haroldo Tavares Zea mays; breeding methods; hybrids; heterosis Zea mays; métodos de melhoramento; híbridos; heterose |
title_short |
Comparison of testers in the evaluation of S2 families of maize |
title_full |
Comparison of testers in the evaluation of S2 families of maize |
title_fullStr |
Comparison of testers in the evaluation of S2 families of maize |
title_full_unstemmed |
Comparison of testers in the evaluation of S2 families of maize |
title_sort |
Comparison of testers in the evaluation of S2 families of maize |
author |
Elias, Haroldo Tavares |
author_facet |
Elias, Haroldo Tavares Carvalho, Samuel Pereira André, Claudomiro Gomes Moura |
author_role |
author |
author2 |
Carvalho, Samuel Pereira André, Claudomiro Gomes Moura |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Elias, Haroldo Tavares Carvalho, Samuel Pereira André, Claudomiro Gomes Moura |
dc.subject.por.fl_str_mv |
Zea mays; breeding methods; hybrids; heterosis Zea mays; métodos de melhoramento; híbridos; heterose |
topic |
Zea mays; breeding methods; hybrids; heterosis Zea mays; métodos de melhoramento; híbridos; heterose |
description |
The objective of this work was to compare testers for discrimination and evaluation of the combining ability of 64 S2 families from the maize (Zea mays L.) hybrid CMS-39. The families were evaluated based on their performance per se and in crossing to three broad base testers. The testers were BR-201, a double hybrid, and two populations, CMS-50 and CMS-39. The topcrosses and S2 families were evaluated in four 8 x 8 lattices, with two replications, set up in adjacent areas on the experimental field of UFLA, Lavras, MG, Brazil, in 1996/97. General and specific combining ability, following partial diallel, and the heterosis of each topcross based on the performance of S2 families per se were estimated. Estimates of correlations were obtained from performance means of the S2 families and the hybrids with the different testers. It was only possible to discriminate the testers according to combining ability and heterosis estimates. Population CMS-50 was identified as the best tester. |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-06-01 |
dc.type.none.fl_str_mv |
|
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://seer.sct.embrapa.br/index.php/pab/article/view/5900 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/5900 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/5900/3004 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.35, n.6, jun. 2000; 1135-1142 Pesquisa Agropecuária Brasileira; v.35, n.6, jun. 2000; 1135-1142 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416681058467840 |