Heterosis analysis in crosses among red rice varieties

Detalhes bibliográficos
Autor(a) principal: Pereira, José Almeida
Data de Publicação: 2008
Outros Autores: Morais, Orlando Peixoto de, Breseghello, Flávio
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/472
Resumo: The objective of this work was to evaluate, using the diallelic analysis, the potential of ten varieties of red rice for the implementation of a breeding program. The identifi cation of parents was performed withten lendraces was performed with in a complete diallel crossing without reciprocals. The varieties and their 45 diallel crosses were evaluated in generations F1 and F3 for agronomic traits in a randomized block design.For the yield character, the following characteristics were evaluated: varietal effect, varietal heterosis and specifi c heterosis in each generation, plus the general combining ability. Signifi cant differences among parents for the traits evaluated were detected; and the crosses 'AL03/PB13' and 'PB05/PB10' were considered the most promising for selection of elite lines of red rice for the favorable parameter estimates related to yield, genetic diversity and combining ability of their parents.
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spelling Heterosis analysis in crosses among red rice varietiesAnálise da heterose de cruzamentos entre variedades de arroz-vermelhoOryza sativa; country rice; combining ability; rice breeding; hybrid vigorOryza sativa; arroz‑da‑terra; capacidade de combinação; melhoramento de arroz; vigor híbridoThe objective of this work was to evaluate, using the diallelic analysis, the potential of ten varieties of red rice for the implementation of a breeding program. The identifi cation of parents was performed withten lendraces was performed with in a complete diallel crossing without reciprocals. The varieties and their 45 diallel crosses were evaluated in generations F1 and F3 for agronomic traits in a randomized block design.For the yield character, the following characteristics were evaluated: varietal effect, varietal heterosis and specifi c heterosis in each generation, plus the general combining ability. Signifi cant differences among parents for the traits evaluated were detected; and the crosses 'AL03/PB13' and 'PB05/PB10' were considered the most promising for selection of elite lines of red rice for the favorable parameter estimates related to yield, genetic diversity and combining ability of their parents..O objetivo deste trabalho foi avaliar, por meio de análise dialélica, o potencial de dez variedades dearroz-vermelho para a implementação de um programa de melhoramento. A identifi cação de genitores foi feitacom dez variedades, em um cruzamento dialélico completo sem recíprocos. As variedades e seus 45 cruzamentosforam avaliados nas gerações F1 e F3, quanto às suas características agronômicas, em delineamento em blocos ao acaso. Para o caráter produção de grãos, foram avaliados: a heterose do cruzamento (H), o efeito varietal (v), a heterose média (_h), a heterose varietal (h) e a heterose específi ca (s) em cada geração, além da capacidadegeral de combinação (g) dos genitores. Foram detectadas diferenças signifi cativas entre as variedades genitoras,quanto às características agronômicas avaliadas, e foram considerados mais promissores, para a seleção de novas linhagens, os cruzamentos 'AL03/PB13' e 'PB05/PB10', em razão das estimativas favoráveis dos parâmetros relacionados à produtividade, à diversidade genética e à capacidade de combinação de seus genitoresPesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraEmbrapaPereira, José AlmeidaMorais, Orlando Peixoto deBreseghello, Flávio2008-09-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/472Pesquisa Agropecuaria Brasileira; v.43, n.9, set. 2008; 1135-1142Pesquisa Agropecuária Brasileira; v.43, n.9, set. 2008; 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/472/5492https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/472/332https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/472/333info:eu-repo/semantics/openAccess2014-07-16T17:11:47Zoai:ojs.seer.sct.embrapa.br:article/472Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-07-16T17:11:47Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Heterosis analysis in crosses among red rice varieties
Análise da heterose de cruzamentos entre variedades de arroz-vermelho
title Heterosis analysis in crosses among red rice varieties
spellingShingle Heterosis analysis in crosses among red rice varieties
Pereira, José Almeida
Oryza sativa; country rice; combining ability; rice breeding; hybrid vigor
Oryza sativa; arroz‑da‑terra; capacidade de combinação; melhoramento de arroz; vigor híbrido
title_short Heterosis analysis in crosses among red rice varieties
title_full Heterosis analysis in crosses among red rice varieties
title_fullStr Heterosis analysis in crosses among red rice varieties
title_full_unstemmed Heterosis analysis in crosses among red rice varieties
title_sort Heterosis analysis in crosses among red rice varieties
author Pereira, José Almeida
author_facet Pereira, José Almeida
Morais, Orlando Peixoto de
Breseghello, Flávio
author_role author
author2 Morais, Orlando Peixoto de
Breseghello, Flávio
author2_role author
author
dc.contributor.none.fl_str_mv
Embrapa
dc.contributor.author.fl_str_mv Pereira, José Almeida
Morais, Orlando Peixoto de
Breseghello, Flávio
dc.subject.por.fl_str_mv Oryza sativa; country rice; combining ability; rice breeding; hybrid vigor
Oryza sativa; arroz‑da‑terra; capacidade de combinação; melhoramento de arroz; vigor híbrido
topic Oryza sativa; country rice; combining ability; rice breeding; hybrid vigor
Oryza sativa; arroz‑da‑terra; capacidade de combinação; melhoramento de arroz; vigor híbrido
description The objective of this work was to evaluate, using the diallelic analysis, the potential of ten varieties of red rice for the implementation of a breeding program. The identifi cation of parents was performed withten lendraces was performed with in a complete diallel crossing without reciprocals. The varieties and their 45 diallel crosses were evaluated in generations F1 and F3 for agronomic traits in a randomized block design.For the yield character, the following characteristics were evaluated: varietal effect, varietal heterosis and specifi c heterosis in each generation, plus the general combining ability. Signifi cant differences among parents for the traits evaluated were detected; and the crosses 'AL03/PB13' and 'PB05/PB10' were considered the most promising for selection of elite lines of red rice for the favorable parameter estimates related to yield, genetic diversity and combining ability of their parents.
publishDate 2008
dc.date.none.fl_str_mv 2008-09-18
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/472
url https://seer.sct.embrapa.br/index.php/pab/article/view/472
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/472/5492
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/472/332
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/472/333
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.43, n.9, set. 2008; 1135-1142
Pesquisa Agropecuária Brasileira; v.43, n.9, set. 2008; 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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