PARAMETERS ESTIMATES OF HETEROSIS IN HYBRID MAIZE F2 POPULATIONS
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | |
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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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 |
_version_ |
1799874817750466560 |