Association of performance between S3 families and topcross hybrids of popcorn

Topcross is used in maize improvement mainly to foresee the behavior of inbred families in crossing, discarding those of inferior performance. This is made because the behavior of performance of inbred families is not a good predictor of its behavior in crossing. This fact is evidenced by several wo...

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Detalhes bibliográficos
Autores: Arnhold, Emmanuel, Viana, José, Silva, Ricardo
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2009
País:Brasil
Recursos:Universidade Federal do Ceará (UFC)
Repositorio:Revista ciência agronômica (Online)
Idioma:inglés
OAI Identifier:oai:periodicos.ufc:article/83946
Acesso em linha:http://periodicos.ufc.br/revistacienciaagronomica/article/view/83946
Access Level:acceso abierto
Palavra-chave:Milho híbrido. Zea mays L.
Hybrid maize. Zea mays L.
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spelling Association of performance between S3 families and topcross hybrids of popcornAssociação de desempenho entre famílias S3 e seus híbridos topcross de milho-pipocaMilho híbrido. Zea mays L.Hybrid maize. Zea mays L.Topcross is used in maize improvement mainly to foresee the behavior of inbred families in crossing, discarding those of inferior performance. This is made because the behavior of performance of inbred families is not a good predictor of its behavior in crossing. This fact is evidenced by several works where low correlations between performances had been found among inbred families and in crossing, for some characters. However, concerning the expansion volume, works of correlation between performance to families and in crossings were not found. Therefore, the objective of this work was to analyze the association of performance between S3 families of the population of Beija-Flor popcorn and its respective hybrids topcross, considering yield and expansion volume. It was used a population of Viçosa popcorn as bequeather. The correlations between S3 families and its hybrids was low. They varied from 0.09 to 0.17 for yield and from 0.34 to 0.58 for expansion volume. Ambient differences must have been the main causes for the low correlations. However, not additive genetic factors also must have been of high importance. The high correlations found for expansion volume in relation to the ones found for yield was cause, mainly, by the fact that expansion volume be a character less influenced by the environment and not by additive factors.O topcross é utilizado no melhoramento do milho, principalmente para prever o comportamento de famílias endogâmicas em cruzamento, descartando aquelas de desempenho inferior. Isso é feito porque o comportamento per si de famílias endogâmicas não é um bom preditor de seu comportamento em cruzamento. Este fato é evidenciado por diversos trabalhos onde foram encontradas baixas correlações entre desempenho per si e em cruzamento para alguns caracteres. Porém, quanto à capacidade de expansão, não se encontram trabalhos de correlação entre desempenho per si e em cruzamento. Portanto, objetivou-se analisar a associação de desempenho entre famílias S3 da população de milho-pipoca Beija-Flor e seus respectivos híbridos topcross, considerando rendimento de grãos e capacidade de expansão. Utilizou-se a população de milho-pipoca Viçosa como testador. As correlações entre famílias S3 e seus híbridos foram baixas. Variaram de 0,09 a 0,17 para rendimento de grãos e de 0,34 a 0,58 para capacidade de expansão. Diferenças ambientais e fatores genéticos não aditivos foram as principais causas das baixas correlações. As maiores correlações encontradas para capacidade de expansão em relação às encontradas para rendimento de grãos foram devidas, principalmente, a capacidade de expansão ser um caráter menos influenciado por fatores gênicos não aditivos e pelo ambiente.Revista Ciência Agronômica2009-09-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://periodicos.ufc.br/revistacienciaagronomica/article/view/83946Revista Ciência Agronômica; v. 40 n. 3 (2009)1806-66900045-6888reponame:Revista ciência agronômica (Online)instname:Universidade Federal do Ceará (UFC)instacron:UFCenghttp://periodicos.ufc.br/revistacienciaagronomica/article/view/83946/228098info:eu-repo/semantics/openAccessArnhold, EmmanuelViana, JoséSilva, Ricardo2023-02-28T07:13:41Zoai:periodicos.ufc:article/83946Revistahttps://periodicos.ufc.br/revistacienciaagronomicaPUBhttps://periodicos.ufc.br/revistacienciaagronomica/oai||alekdutra@ufc.br|| ccarev@ufc.br1806-66900045-6888opendoar:2023-02-28T07:13:41Revista ciência agronômica (Online) - Universidade Federal do Ceará (UFC)false
dc.title.none.fl_str_mv Association of performance between S3 families and topcross hybrids of popcorn
Associação de desempenho entre famílias S3 e seus híbridos topcross de milho-pipoca
title Association of performance between S3 families and topcross hybrids of popcorn
spellingShingle Association of performance between S3 families and topcross hybrids of popcorn
Arnhold, Emmanuel
Milho híbrido. Zea mays L.
Hybrid maize. Zea mays L.
title_short Association of performance between S3 families and topcross hybrids of popcorn
title_full Association of performance between S3 families and topcross hybrids of popcorn
title_fullStr Association of performance between S3 families and topcross hybrids of popcorn
title_full_unstemmed Association of performance between S3 families and topcross hybrids of popcorn
title_sort Association of performance between S3 families and topcross hybrids of popcorn
dc.creator.none.fl_str_mv Arnhold, Emmanuel
Viana, José
Silva, Ricardo
author Arnhold, Emmanuel
author_facet Arnhold, Emmanuel
Viana, José
Silva, Ricardo
author_role author
author2 Viana, José
Silva, Ricardo
author2_role author
author
dc.subject.por.fl_str_mv Milho híbrido. Zea mays L.
Hybrid maize. Zea mays L.
topic Milho híbrido. Zea mays L.
Hybrid maize. Zea mays L.
description Topcross is used in maize improvement mainly to foresee the behavior of inbred families in crossing, discarding those of inferior performance. This is made because the behavior of performance of inbred families is not a good predictor of its behavior in crossing. This fact is evidenced by several works where low correlations between performances had been found among inbred families and in crossing, for some characters. However, concerning the expansion volume, works of correlation between performance to families and in crossings were not found. Therefore, the objective of this work was to analyze the association of performance between S3 families of the population of Beija-Flor popcorn and its respective hybrids topcross, considering yield and expansion volume. It was used a population of Viçosa popcorn as bequeather. The correlations between S3 families and its hybrids was low. They varied from 0.09 to 0.17 for yield and from 0.34 to 0.58 for expansion volume. Ambient differences must have been the main causes for the low correlations. However, not additive genetic factors also must have been of high importance. The high correlations found for expansion volume in relation to the ones found for yield was cause, mainly, by the fact that expansion volume be a character less influenced by the environment and not by additive factors.
publishDate 2009
dc.date.none.fl_str_mv 2009-09-18
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 http://periodicos.ufc.br/revistacienciaagronomica/article/view/83946
url http://periodicos.ufc.br/revistacienciaagronomica/article/view/83946
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://periodicos.ufc.br/revistacienciaagronomica/article/view/83946/228098
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 Revista Ciência Agronômica
publisher.none.fl_str_mv Revista Ciência Agronômica
dc.source.none.fl_str_mv Revista Ciência Agronômica; v. 40 n. 3 (2009)
1806-6690
0045-6888
reponame:Revista ciência agronômica (Online)
instname:Universidade Federal do Ceará (UFC)
instacron:UFC
instname_str Universidade Federal do Ceará (UFC)
instacron_str UFC
institution UFC
reponame_str Revista ciência agronômica (Online)
collection Revista ciência agronômica (Online)
repository.name.fl_str_mv Revista ciência agronômica (Online) - Universidade Federal do Ceará (UFC)
repository.mail.fl_str_mv ||alekdutra@ufc.br|| ccarev@ufc.br
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