Relative genetic potential of brachytic maize (Zea mays L.) varieties as breeding populations.
Autor(a) principal: | |
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Data de Publicação: | 1985 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/476186 |
Resumo: | Six brachytic maize (Zea mays L.) varietis were evaluated in diallel cross. The six varieties, the fifteen intervarietal hybrids and two checks were evaluated in a randomized block design with six replications at one locations. The statistical-genetical analyses were performed according to the model proposed by Gardner and Eberhart (1966). Relative to the mid-parent, average heterosis was 0.8596 t/ha (17.09%), ranging from 0.150 t/ha (2.46%) to 2.221 t/ha (49.25%). The results showed that the varieties are genetically different both in terms of performance and heterotic potential. Significant specific heterosis was observed for plant height and ear height, which can be explained by the genetic diversity of the varieties with respect to the modifier genescontaining some degree of dominance. The Piranao VD-1 and Piranao VF-1 varieties showed outstanding yielding ability both per se and in crossing. The hybrid between these two varieties showed the highest yielding ability of all diallel crosses. The heterosis level of this particular cross (13.79%) provided evidence of the presence of genetic diversity between the parental varieties, and these varieties are recommended for use in medium-term program involving inbred line hybrids as well as in long-term programs of reciprocal recurrent selection. |
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Relative genetic potential of brachytic maize (Zea mays L.) varieties as breeding populations.MaizeMilhoMelhoramentoZea MaysbreedingSix brachytic maize (Zea mays L.) varietis were evaluated in diallel cross. The six varieties, the fifteen intervarietal hybrids and two checks were evaluated in a randomized block design with six replications at one locations. The statistical-genetical analyses were performed according to the model proposed by Gardner and Eberhart (1966). Relative to the mid-parent, average heterosis was 0.8596 t/ha (17.09%), ranging from 0.150 t/ha (2.46%) to 2.221 t/ha (49.25%). The results showed that the varieties are genetically different both in terms of performance and heterotic potential. Significant specific heterosis was observed for plant height and ear height, which can be explained by the genetic diversity of the varieties with respect to the modifier genescontaining some degree of dominance. The Piranao VD-1 and Piranao VF-1 varieties showed outstanding yielding ability both per se and in crossing. The hybrid between these two varieties showed the highest yielding ability of all diallel crosses. The heterosis level of this particular cross (13.79%) provided evidence of the presence of genetic diversity between the parental varieties, and these varieties are recommended for use in medium-term program involving inbred line hybrids as well as in long-term programs of reciprocal recurrent selection.EMBRAPA/CNPMS.SOUZA JUNIOR, C. L.ZINSLY, J. R.2011-04-10T11:11:11Z2011-04-10T11:11:11Z1997-09-0319852018-07-19T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleRevista Brasileira de Genética, Ribeirão Preto, v. 8, n. 3, p. 523-533, 1985.http://www.alice.cnptia.embrapa.br/alice/handle/doc/476186enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T02:37:52Zoai:www.alice.cnptia.embrapa.br:doc/476186Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T02:37:52falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T02:37:52Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Relative genetic potential of brachytic maize (Zea mays L.) varieties as breeding populations. |
title |
Relative genetic potential of brachytic maize (Zea mays L.) varieties as breeding populations. |
spellingShingle |
Relative genetic potential of brachytic maize (Zea mays L.) varieties as breeding populations. SOUZA JUNIOR, C. L. Maize Milho Melhoramento Zea Mays breeding |
title_short |
Relative genetic potential of brachytic maize (Zea mays L.) varieties as breeding populations. |
title_full |
Relative genetic potential of brachytic maize (Zea mays L.) varieties as breeding populations. |
title_fullStr |
Relative genetic potential of brachytic maize (Zea mays L.) varieties as breeding populations. |
title_full_unstemmed |
Relative genetic potential of brachytic maize (Zea mays L.) varieties as breeding populations. |
title_sort |
Relative genetic potential of brachytic maize (Zea mays L.) varieties as breeding populations. |
author |
SOUZA JUNIOR, C. L. |
author_facet |
SOUZA JUNIOR, C. L. ZINSLY, J. R. |
author_role |
author |
author2 |
ZINSLY, J. R. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
EMBRAPA/CNPMS. |
dc.contributor.author.fl_str_mv |
SOUZA JUNIOR, C. L. ZINSLY, J. R. |
dc.subject.por.fl_str_mv |
Maize Milho Melhoramento Zea Mays breeding |
topic |
Maize Milho Melhoramento Zea Mays breeding |
description |
Six brachytic maize (Zea mays L.) varietis were evaluated in diallel cross. The six varieties, the fifteen intervarietal hybrids and two checks were evaluated in a randomized block design with six replications at one locations. The statistical-genetical analyses were performed according to the model proposed by Gardner and Eberhart (1966). Relative to the mid-parent, average heterosis was 0.8596 t/ha (17.09%), ranging from 0.150 t/ha (2.46%) to 2.221 t/ha (49.25%). The results showed that the varieties are genetically different both in terms of performance and heterotic potential. Significant specific heterosis was observed for plant height and ear height, which can be explained by the genetic diversity of the varieties with respect to the modifier genescontaining some degree of dominance. The Piranao VD-1 and Piranao VF-1 varieties showed outstanding yielding ability both per se and in crossing. The hybrid between these two varieties showed the highest yielding ability of all diallel crosses. The heterosis level of this particular cross (13.79%) provided evidence of the presence of genetic diversity between the parental varieties, and these varieties are recommended for use in medium-term program involving inbred line hybrids as well as in long-term programs of reciprocal recurrent selection. |
publishDate |
1985 |
dc.date.none.fl_str_mv |
1985 1997-09-03 2011-04-10T11:11:11Z 2011-04-10T11:11:11Z 2018-07-19T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Revista Brasileira de Genética, Ribeirão Preto, v. 8, n. 3, p. 523-533, 1985. http://www.alice.cnptia.embrapa.br/alice/handle/doc/476186 |
identifier_str_mv |
Revista Brasileira de Genética, Ribeirão Preto, v. 8, n. 3, p. 523-533, 1985. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/476186 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
_version_ |
1794503370401120256 |