IMPLICATIONS OF NON-SELECTIVE HERBICIDES ON FLOODED RICE PROGENY WHEN APPLIED AT MATURITY PHASE
Autor(a) principal: | |
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Data de Publicação: | 2000 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Gaúcha (Online) |
Texto Completo: | http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/349 |
Resumo: | With the objective to evaluate the effects of non-selective herbicides, utilized for crop desiccation at its maturity phase, on flooded rice (Oryza sativa L.) progeny, there were conducted experiments at field, laboratory, and greenhouse conditions, during the growing seasons of 1997/98 and 1998/99. Treatments tested were the herbicides glyphosate, glufosinate, and paraquat, applied at two rates and at two times, the growth regulator maleic hydrazide was used as a standard, besides a check without chemical applicátion. The rice reagent cultivar was IRGA-416. The remainder management practices applied were those recommended for the crop, which developed in the presence of a red rice infestation. It was evaluated the following variables: rice seed viability and germination, and emergence, height, and dry weight of seedlings. In general, applications of the herbicides glyphosate, glufosinate, and paraquat, at physiological maturity of flooded rice, do not affect seed viability and germination, or seedling emergence. The non-selective herbicides, used for crop desiccation showed effects equivalents to those of the growth regulator maleic hydrazide in relation to the characteristics of rice progeny. High infestation of red rice affects negatively the germination of flooded rice seeds, but does not affect initial growth of the seedlings of its progeny. |
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IMPLICATIONS OF NON-SELECTIVE HERBICIDES ON FLOODED RICE PROGENY WHEN APPLIED AT MATURITY PHASE IMPLICAÇÕES DE HERBICIDAS NÃO SELETIVOS SOBRE A PROGÊNIE DO ARROZ CULTIVADO QUANDO APLICADOS NA FASE DE MATURAÇÃO Oryza sativa, cultivated rice, red rice, germination, seed, desiccation.Oryza saliva, arroz irrigado, arroz vermelho, herbicida dessecante, germinação, semente.With the objective to evaluate the effects of non-selective herbicides, utilized for crop desiccation at its maturity phase, on flooded rice (Oryza sativa L.) progeny, there were conducted experiments at field, laboratory, and greenhouse conditions, during the growing seasons of 1997/98 and 1998/99. Treatments tested were the herbicides glyphosate, glufosinate, and paraquat, applied at two rates and at two times, the growth regulator maleic hydrazide was used as a standard, besides a check without chemical applicátion. The rice reagent cultivar was IRGA-416. The remainder management practices applied were those recommended for the crop, which developed in the presence of a red rice infestation. It was evaluated the following variables: rice seed viability and germination, and emergence, height, and dry weight of seedlings. In general, applications of the herbicides glyphosate, glufosinate, and paraquat, at physiological maturity of flooded rice, do not affect seed viability and germination, or seedling emergence. The non-selective herbicides, used for crop desiccation showed effects equivalents to those of the growth regulator maleic hydrazide in relation to the characteristics of rice progeny. High infestation of red rice affects negatively the germination of flooded rice seeds, but does not affect initial growth of the seedlings of its progeny.Com o objetivo de avaliar os efeitos de herbicidas não seletivos, utilizados como dessecantes na fase de maturação, sobre a progênie do arroz cultivado (Oryza sativa L.), conduziu-se experimentos a campo, em laboratório e em casa de vegetação nas estações de crescimento 1997/98 e 1998/99. Os tratamentos testados foram: os herbicidas glyphosate, glufosinate e paraquat, aplicados em duas épocas e em duas doses utilizando-se o regulador de crescimento hidrazida maléica que foi usado como padrão, além de uma testemunha sem aplicação de produto químico. O cultivar de arroz reagente utilizado foi a IRGA-416. As demais práticas de manejo aplicadas foram as preconizadas para a cultura, a qual se desenvolveu sob infestação de arroz vermelho (O. sativa). Avaliaram-se as seguintes variáveis: viabilidade e germinação das sementes de arroz, emergência, altura e matéria seca das plântulas. Conclui-se que: as aplicações dos herbicidas glyphosate, glufosinate e paraquat por ocasião da maturação fisiológica do arroz cultivado, não afetam a viabilidade, a germinação e a emergência das plântulas. Os herbicidas não seletivos, usados como dessecantes em arroz, apresentam efeitos equivalentes aos do regulador de crescimento hidrazida maléica em relação às características da progênie da cultura, e que elevada infestação de arroz vermelho afetam negativamente a germinação das sementes de arroz cultivado, mas não alteram o crescimento inicial das plantas da progênie.Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural2000-12-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/349Pesquisa Agropecuária Gaúcha; Vol 6 No 2 (2000): PESQ. AGROP. GAÚCHA; 235-246Pesquisa Agropecuária Gaúcha; v. 6 n. 2 (2000): PESQ. AGROP. GAÚCHA; 235-2462595-76860104-9070reponame:Pesquisa Agropecuária Gaúcha (Online)instname:Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sulinstacron:SEAPDRporhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/349/319FLECK, NILSON GAGOSITNETT0, DIRCEU VIDAL, RIBAS AJUNIOR, ALDO MEROTTO info:eu-repo/semantics/openAccess2020-08-08T21:33:19Zoai:ojs.revistapag.agricultura.rs.gov.br:article/349Revistahttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapagPUBhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/oaipag@agricultura.rs.gov.br||2595-76860104-9070opendoar:2020-08-08T21:33:19Pesquisa Agropecuária Gaúcha (Online) - Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sulfalse |
dc.title.none.fl_str_mv |
IMPLICATIONS OF NON-SELECTIVE HERBICIDES ON FLOODED RICE PROGENY WHEN APPLIED AT MATURITY PHASE IMPLICAÇÕES DE HERBICIDAS NÃO SELETIVOS SOBRE A PROGÊNIE DO ARROZ CULTIVADO QUANDO APLICADOS NA FASE DE MATURAÇÃO |
title |
IMPLICATIONS OF NON-SELECTIVE HERBICIDES ON FLOODED RICE PROGENY WHEN APPLIED AT MATURITY PHASE |
spellingShingle |
IMPLICATIONS OF NON-SELECTIVE HERBICIDES ON FLOODED RICE PROGENY WHEN APPLIED AT MATURITY PHASE FLECK, NILSON G Oryza sativa, cultivated rice, red rice, germination, seed, desiccation. Oryza saliva, arroz irrigado, arroz vermelho, herbicida dessecante, germinação, semente. |
title_short |
IMPLICATIONS OF NON-SELECTIVE HERBICIDES ON FLOODED RICE PROGENY WHEN APPLIED AT MATURITY PHASE |
title_full |
IMPLICATIONS OF NON-SELECTIVE HERBICIDES ON FLOODED RICE PROGENY WHEN APPLIED AT MATURITY PHASE |
title_fullStr |
IMPLICATIONS OF NON-SELECTIVE HERBICIDES ON FLOODED RICE PROGENY WHEN APPLIED AT MATURITY PHASE |
title_full_unstemmed |
IMPLICATIONS OF NON-SELECTIVE HERBICIDES ON FLOODED RICE PROGENY WHEN APPLIED AT MATURITY PHASE |
title_sort |
IMPLICATIONS OF NON-SELECTIVE HERBICIDES ON FLOODED RICE PROGENY WHEN APPLIED AT MATURITY PHASE |
author |
FLECK, NILSON G |
author_facet |
FLECK, NILSON G AGOSITNETT0, DIRCEU VIDAL, RIBAS A JUNIOR, ALDO MEROTTO |
author_role |
author |
author2 |
AGOSITNETT0, DIRCEU VIDAL, RIBAS A JUNIOR, ALDO MEROTTO |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
FLECK, NILSON G AGOSITNETT0, DIRCEU VIDAL, RIBAS A JUNIOR, ALDO MEROTTO |
dc.subject.por.fl_str_mv |
Oryza sativa, cultivated rice, red rice, germination, seed, desiccation. Oryza saliva, arroz irrigado, arroz vermelho, herbicida dessecante, germinação, semente. |
topic |
Oryza sativa, cultivated rice, red rice, germination, seed, desiccation. Oryza saliva, arroz irrigado, arroz vermelho, herbicida dessecante, germinação, semente. |
description |
With the objective to evaluate the effects of non-selective herbicides, utilized for crop desiccation at its maturity phase, on flooded rice (Oryza sativa L.) progeny, there were conducted experiments at field, laboratory, and greenhouse conditions, during the growing seasons of 1997/98 and 1998/99. Treatments tested were the herbicides glyphosate, glufosinate, and paraquat, applied at two rates and at two times, the growth regulator maleic hydrazide was used as a standard, besides a check without chemical applicátion. The rice reagent cultivar was IRGA-416. The remainder management practices applied were those recommended for the crop, which developed in the presence of a red rice infestation. It was evaluated the following variables: rice seed viability and germination, and emergence, height, and dry weight of seedlings. In general, applications of the herbicides glyphosate, glufosinate, and paraquat, at physiological maturity of flooded rice, do not affect seed viability and germination, or seedling emergence. The non-selective herbicides, used for crop desiccation showed effects equivalents to those of the growth regulator maleic hydrazide in relation to the characteristics of rice progeny. High infestation of red rice affects negatively the germination of flooded rice seeds, but does not affect initial growth of the seedlings of its progeny. |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-12-26 |
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 |
http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/349 |
url |
http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/349 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/349/319 |
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 |
Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural |
publisher.none.fl_str_mv |
Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural |
dc.source.none.fl_str_mv |
Pesquisa Agropecuária Gaúcha; Vol 6 No 2 (2000): PESQ. AGROP. GAÚCHA; 235-246 Pesquisa Agropecuária Gaúcha; v. 6 n. 2 (2000): PESQ. AGROP. GAÚCHA; 235-246 2595-7686 0104-9070 reponame:Pesquisa Agropecuária Gaúcha (Online) instname:Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul instacron:SEAPDR |
instname_str |
Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul |
instacron_str |
SEAPDR |
institution |
SEAPDR |
reponame_str |
Pesquisa Agropecuária Gaúcha (Online) |
collection |
Pesquisa Agropecuária Gaúcha (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Gaúcha (Online) - Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul |
repository.mail.fl_str_mv |
pag@agricultura.rs.gov.br|| |
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1797068776177401856 |