Efficiency of visual selection on lowland rice (Oryza sativa L.) grain yield
Autor(a) principal: | |
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Data de Publicação: | 1997 |
Outros Autores: | , |
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/4685 |
Resumo: | This work was carried out aiming to verify if visual selection among F2 plants is effective based on grain yield; if there are differences among breeder skills; and if the early selection, accomplished by each one of the plants individually, is efficient in improving the performance of families in advanced generations. Three populations from the three-way crosses were used. Eleven breeders varying in their experience on the crop, performed visual selection of individual plants with higher grain yield in F2generation. It was realized that the breeders showed different skillness for visually identifying higher yielding plants; in addition, it was found that such skillness is not associated to the individual's experience to identify the highest yielding plants. The progenies, from visually selected plants in the F2 generation, yielded similarly to the ones obtained randomly, showing that the early selection was not effective. |
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Efficiency of visual selection on lowland rice (Oryza sativa L.) grain yieldEficiência da seleção visual na produtividade de grãos de arroz (Oryza sativa L.) irrigadoearly selection; grain yield; plant breedingseleção precoce; capacidade produtiva; melhoramento genéticoThis work was carried out aiming to verify if visual selection among F2 plants is effective based on grain yield; if there are differences among breeder skills; and if the early selection, accomplished by each one of the plants individually, is efficient in improving the performance of families in advanced generations. Three populations from the three-way crosses were used. Eleven breeders varying in their experience on the crop, performed visual selection of individual plants with higher grain yield in F2generation. It was realized that the breeders showed different skillness for visually identifying higher yielding plants; in addition, it was found that such skillness is not associated to the individual's experience to identify the highest yielding plants. The progenies, from visually selected plants in the F2 generation, yielded similarly to the ones obtained randomly, showing that the early selection was not effective.Com o objetivo de verificar se a seleção visual é capaz de identificar diferenças de capacidade produtiva entre indivíduos da geração F2; se há diferença entre a habilidade dos selecionadores envolvidos; e se a seleção precoce realizada nas plantas nessa geração é efetiva em melhorar o desempenho das famílias em gerações avançadas, foram utilizadas três populações segregantes oriundas de cruzamentos triplos. Foram utilizados onze selecionadores diferindo em experiência na cultura, para identificar visualmente as plantas mais produtivas na geração F2. Verificou-se que os selecionadores diferiram na habilidade em identificar visualmente plantas produtivas e que esta habilidade não está associada à experiência do selecionador com a cultura. Nas avaliações realizadas na geração F4, constatou-se que as progênies derivadas das plantas selecionadas visualmente na geração F2 e as oriundas aleatoriamente não diferiram quanto à produtividade de grãos, o que indica que a seleção precoce não foi eficiente.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária Brasileirados Anjos Cutrim, VeridianoPatto Ramalho, Magno AntônioMarinho Carvalho, Assis1997-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/4685Pesquisa Agropecuaria Brasileira; v.32, n.6, jun. 1997; 601-606Pesquisa Agropecuária Brasileira; v.32, n.6, jun. 1997; 601-6061678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/4685/7346info:eu-repo/semantics/openAccess2015-03-31T20:09:38Zoai:ojs.seer.sct.embrapa.br:article/4685Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2015-03-31T20:09:38Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Efficiency of visual selection on lowland rice (Oryza sativa L.) grain yield Eficiência da seleção visual na produtividade de grãos de arroz (Oryza sativa L.) irrigado |
title |
Efficiency of visual selection on lowland rice (Oryza sativa L.) grain yield |
spellingShingle |
Efficiency of visual selection on lowland rice (Oryza sativa L.) grain yield dos Anjos Cutrim, Veridiano early selection; grain yield; plant breeding seleção precoce; capacidade produtiva; melhoramento genético |
title_short |
Efficiency of visual selection on lowland rice (Oryza sativa L.) grain yield |
title_full |
Efficiency of visual selection on lowland rice (Oryza sativa L.) grain yield |
title_fullStr |
Efficiency of visual selection on lowland rice (Oryza sativa L.) grain yield |
title_full_unstemmed |
Efficiency of visual selection on lowland rice (Oryza sativa L.) grain yield |
title_sort |
Efficiency of visual selection on lowland rice (Oryza sativa L.) grain yield |
author |
dos Anjos Cutrim, Veridiano |
author_facet |
dos Anjos Cutrim, Veridiano Patto Ramalho, Magno Antônio Marinho Carvalho, Assis |
author_role |
author |
author2 |
Patto Ramalho, Magno Antônio Marinho Carvalho, Assis |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
dos Anjos Cutrim, Veridiano Patto Ramalho, Magno Antônio Marinho Carvalho, Assis |
dc.subject.por.fl_str_mv |
early selection; grain yield; plant breeding seleção precoce; capacidade produtiva; melhoramento genético |
topic |
early selection; grain yield; plant breeding seleção precoce; capacidade produtiva; melhoramento genético |
description |
This work was carried out aiming to verify if visual selection among F2 plants is effective based on grain yield; if there are differences among breeder skills; and if the early selection, accomplished by each one of the plants individually, is efficient in improving the performance of families in advanced generations. Three populations from the three-way crosses were used. Eleven breeders varying in their experience on the crop, performed visual selection of individual plants with higher grain yield in F2generation. It was realized that the breeders showed different skillness for visually identifying higher yielding plants; in addition, it was found that such skillness is not associated to the individual's experience to identify the highest yielding plants. The progenies, from visually selected plants in the F2 generation, yielded similarly to the ones obtained randomly, showing that the early selection was not effective. |
publishDate |
1997 |
dc.date.none.fl_str_mv |
1997-06-01 |
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/4685 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/4685 |
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/4685/7346 |
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.32, n.6, jun. 1997; 601-606 Pesquisa Agropecuária Brasileira; v.32, n.6, jun. 1997; 601-606 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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1793416665827901440 |