PARAMETERS ESTIMATES OF HETEROSIS IN HYBRID MAIZE F2 POPULATIONS

Detalhes bibliográficos
Autor(a) principal: Bernini, Cristiani Santos
Data de Publicação: 2012
Outros Autores: Paterniani, Maria Elisa Ayres Guidetti Zagatto
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/14577
Resumo: Hybrids developed with the efficient use of heterosis contribute significantly for increasing maize yield. This study aimed to evaluate F2 hybrid populations, concernings agronomic traits, and estimate genetic parameters of F2 populations, as well as heterosis, by using the Gardner & Eberhart method. Higher estimates of F2 populations effect, for grain mass, were noticed in the Pop.9, Pop.11, Pop.14, and Pop.15, being considered suitable for intrapopulational recurrent selection programs and for obtaining superior lines. The Pop.10 and Pop.16 distinguished themselves by presenting the higher effects of parental heterosis, for grain mass. The Pop.12 x Pop.10 and Pop.13 x Pop.10 hybrids showed high yield and specific heterosis effects, revealing the existence of dominant locus in the genetic control of grain mass.
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spelling PARAMETERS ESTIMATES OF HETEROSIS IN HYBRID MAIZE F2 POPULATIONSESTIMATIVAS DE PARÂMETROS DE HETEROSE EM HÍBRIDOS DE POPULAÇÕES F2 DE MILHOZea mays L.intervarietal hybridcomplete diallel.Zea mays L.híbrido intervarietaldialelo completo.Hybrids developed with the efficient use of heterosis contribute significantly for increasing maize yield. This study aimed to evaluate F2 hybrid populations, concernings agronomic traits, and estimate genetic parameters of F2 populations, as well as heterosis, by using the Gardner & Eberhart method. Higher estimates of F2 populations effect, for grain mass, were noticed in the Pop.9, Pop.11, Pop.14, and Pop.15, being considered suitable for intrapopulational recurrent selection programs and for obtaining superior lines. The Pop.10 and Pop.16 distinguished themselves by presenting the higher effects of parental heterosis, for grain mass. The Pop.12 x Pop.10 and Pop.13 x Pop.10 hybrids showed high yield and specific heterosis effects, revealing the existence of dominant locus in the genetic control of grain mass.Os híbridos desenvolvidos com o uso eficiente da heterose contribuem significativamente para o aumento de produtividade, na cultura do milho. O presente trabalho teve por objetivos avaliar híbridos de populações F2, quanto aos caracteres agronômicos, e estimar parâmetros genéticos das populações F2, bem como a heterose, utilizando-se o método de Gardner & Eberhart. Verificaram-se maiores estimativas de efeito de populações F2, para massa de grãos, na Pop.9, Pop.11, Pop.14 e Pop.15, sendo estas indicadas para programas de seleção recorrente intrapopulacional e obtenção de linhagens superiores. A Pop.10 e Pop.16 destacaram-se pelos maiores efeitos de heterose de parentais, para massa de grãos. Os híbridos Pop.12 x Pop.10 e Pop.13 x Pop.10 apresentaram alta produtividade e efeitos elevados de heterose específica, indicando a existência de locos em dominância, no controle genético de massa de grãos.Escola de Agronomia - Universidade Federal de Goiás2012-03-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistas.ufg.br/pat/article/view/14577Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 42, n. 1, Jan./Mar. 2012; 56-62Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 42, n. 1, jan./mar. 2012; 56-62Pesquisa Agropecuária Tropical; v. 42, n. 1, jan./mar. 2012; 56-621983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/14577/10422Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessBernini, Cristiani SantosPaterniani, Maria Elisa Ayres Guidetti Zagatto2020-07-10T11:06:05Zoai:ojs.revistas.ufg.br:article/14577Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:55:52.674754Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv PARAMETERS ESTIMATES OF HETEROSIS IN HYBRID MAIZE F2 POPULATIONS
ESTIMATIVAS DE PARÂMETROS DE HETEROSE EM HÍBRIDOS DE POPULAÇÕES F2 DE MILHO
title PARAMETERS ESTIMATES OF HETEROSIS IN HYBRID MAIZE F2 POPULATIONS
spellingShingle PARAMETERS ESTIMATES OF HETEROSIS IN HYBRID MAIZE F2 POPULATIONS
Bernini, Cristiani Santos
Zea mays L.
intervarietal hybrid
complete diallel.
Zea mays L.
híbrido intervarietal
dialelo completo.
title_short PARAMETERS ESTIMATES OF HETEROSIS IN HYBRID MAIZE F2 POPULATIONS
title_full PARAMETERS ESTIMATES OF HETEROSIS IN HYBRID MAIZE F2 POPULATIONS
title_fullStr PARAMETERS ESTIMATES OF HETEROSIS IN HYBRID MAIZE F2 POPULATIONS
title_full_unstemmed PARAMETERS ESTIMATES OF HETEROSIS IN HYBRID MAIZE F2 POPULATIONS
title_sort PARAMETERS ESTIMATES OF HETEROSIS IN HYBRID MAIZE F2 POPULATIONS
author Bernini, Cristiani Santos
author_facet Bernini, Cristiani Santos
Paterniani, Maria Elisa Ayres Guidetti Zagatto
author_role author
author2 Paterniani, Maria Elisa Ayres Guidetti Zagatto
author2_role author
dc.contributor.author.fl_str_mv Bernini, Cristiani Santos
Paterniani, Maria Elisa Ayres Guidetti Zagatto
dc.subject.por.fl_str_mv Zea mays L.
intervarietal hybrid
complete diallel.
Zea mays L.
híbrido intervarietal
dialelo completo.
topic Zea mays L.
intervarietal hybrid
complete diallel.
Zea mays L.
híbrido intervarietal
dialelo completo.
description Hybrids developed with the efficient use of heterosis contribute significantly for increasing maize yield. This study aimed to evaluate F2 hybrid populations, concernings agronomic traits, and estimate genetic parameters of F2 populations, as well as heterosis, by using the Gardner & Eberhart method. Higher estimates of F2 populations effect, for grain mass, were noticed in the Pop.9, Pop.11, Pop.14, and Pop.15, being considered suitable for intrapopulational recurrent selection programs and for obtaining superior lines. The Pop.10 and Pop.16 distinguished themselves by presenting the higher effects of parental heterosis, for grain mass. The Pop.12 x Pop.10 and Pop.13 x Pop.10 hybrids showed high yield and specific heterosis effects, revealing the existence of dominant locus in the genetic control of grain mass.
publishDate 2012
dc.date.none.fl_str_mv 2012-03-09
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://revistas.ufg.br/pat/article/view/14577
url https://revistas.ufg.br/pat/article/view/14577
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/14577/10422
dc.rights.driver.fl_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 42, n. 1, Jan./Mar. 2012; 56-62
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 42, n. 1, jan./mar. 2012; 56-62
Pesquisa Agropecuária Tropical; v. 42, n. 1, jan./mar. 2012; 56-62
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
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