Evaluation of imazaquin and trifluralin soil residual activity through corn bioassays
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4357 |
Resumo: | Soil samples containing imazaquin and trifluralin were used to conduct corn bioassays in a greenhouse. The visual symptoms of corn phytotoxicity cultivated with trifluralin decreased faster than in soils with imazaquin application. Imazaquin residues caused the biomass reduction of the corn aerial part in all doses up to 60 days after the application (DAA), but such effect was evident up to 90 DAA for doses higher than 180g/ha. For corn roots, however, the effect was longer and only after 120 DAA no more weight reduction was detected. Trifluralin residual effect on corn plants was more evident in the roots than in the shoot, and the root growth reduction was observable up to 150 DAA. Imazaquin phytotoxicity was observed in 10-20 cm-deep soil samples, thus suggesting a higher potential for soil leaching. |
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Acta Scientiarum. Agronomy (Online) |
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Evaluation of imazaquin and trifluralin soil residual activity through corn bioassaysAvaliação da atividade residual no solo de imazaquin e trifluralin através de bioensaios com milhobioensaiopotencial de carryoverpersistênciaresíduos5.01.00.00-9 AgronomiaSoil samples containing imazaquin and trifluralin were used to conduct corn bioassays in a greenhouse. The visual symptoms of corn phytotoxicity cultivated with trifluralin decreased faster than in soils with imazaquin application. Imazaquin residues caused the biomass reduction of the corn aerial part in all doses up to 60 days after the application (DAA), but such effect was evident up to 90 DAA for doses higher than 180g/ha. For corn roots, however, the effect was longer and only after 120 DAA no more weight reduction was detected. Trifluralin residual effect on corn plants was more evident in the roots than in the shoot, and the root growth reduction was observable up to 150 DAA. Imazaquin phytotoxicity was observed in 10-20 cm-deep soil samples, thus suggesting a higher potential for soil leaching.Amostras de solo provenientes de áreas que receberam a aplicação de imazaquin e trifluralin foram utilizadas na condução de bioensaios com milho em casa-de-vegetação. A toxicidade visual no milho cultivado em solo no qual foi aplicado trifluralin decresceu mais rapidamente do que no solo que recebeu a aplicação de imazaquin. Os resíduos de imazaquin provocaram redução no acúmulo de biomassa da parte aérea do milho, praticamente em todas as doses, até 60 dias após a aplicação (DAA), mas esse efeito só foi observável até 90 DAA, para doses acima de 180g/ha. Para as raízes, no entanto, o efeito foi mais prolongado e, somente a partir de 120 DAA, a redução no peso deixou de ser observada. O efeito dos resíduos de trifluralin sobre as plantas de milho manifestou-se de forma mais evidente sobre as raízes do que sobre a parte aérea, e a redução no crescimento radicular perceptível até os 150 DAA. Com relação às amostras coletadas na profundidade 10-20cm, observaram-se sintomas de toxicidade para imazaquin, sugerindo maior potencial de movimentação no perfil do solo.Universidade Estadual de Maringá2008-07-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/435710.4025/actasciagron.v20i0.4357Acta Scientiarum. Agronomy; Vol 20 (1998); 291-295Acta Scientiarum. Agronomy; v. 20 (1998); 291-2951807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4357/2989Silva, Antonio Alberto daOliveira Junior, Rubem Silverio deCastro Filho, José E.info:eu-repo/semantics/openAccess2022-11-23T18:38:05Zoai:periodicos.uem.br/ojs:article/4357Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-11-23T18:38:05Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Evaluation of imazaquin and trifluralin soil residual activity through corn bioassays Avaliação da atividade residual no solo de imazaquin e trifluralin através de bioensaios com milho |
title |
Evaluation of imazaquin and trifluralin soil residual activity through corn bioassays |
spellingShingle |
Evaluation of imazaquin and trifluralin soil residual activity through corn bioassays Silva, Antonio Alberto da bioensaio potencial de carryover persistência resíduos 5.01.00.00-9 Agronomia |
title_short |
Evaluation of imazaquin and trifluralin soil residual activity through corn bioassays |
title_full |
Evaluation of imazaquin and trifluralin soil residual activity through corn bioassays |
title_fullStr |
Evaluation of imazaquin and trifluralin soil residual activity through corn bioassays |
title_full_unstemmed |
Evaluation of imazaquin and trifluralin soil residual activity through corn bioassays |
title_sort |
Evaluation of imazaquin and trifluralin soil residual activity through corn bioassays |
author |
Silva, Antonio Alberto da |
author_facet |
Silva, Antonio Alberto da Oliveira Junior, Rubem Silverio de Castro Filho, José E. |
author_role |
author |
author2 |
Oliveira Junior, Rubem Silverio de Castro Filho, José E. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Silva, Antonio Alberto da Oliveira Junior, Rubem Silverio de Castro Filho, José E. |
dc.subject.por.fl_str_mv |
bioensaio potencial de carryover persistência resíduos 5.01.00.00-9 Agronomia |
topic |
bioensaio potencial de carryover persistência resíduos 5.01.00.00-9 Agronomia |
description |
Soil samples containing imazaquin and trifluralin were used to conduct corn bioassays in a greenhouse. The visual symptoms of corn phytotoxicity cultivated with trifluralin decreased faster than in soils with imazaquin application. Imazaquin residues caused the biomass reduction of the corn aerial part in all doses up to 60 days after the application (DAA), but such effect was evident up to 90 DAA for doses higher than 180g/ha. For corn roots, however, the effect was longer and only after 120 DAA no more weight reduction was detected. Trifluralin residual effect on corn plants was more evident in the roots than in the shoot, and the root growth reduction was observable up to 150 DAA. Imazaquin phytotoxicity was observed in 10-20 cm-deep soil samples, thus suggesting a higher potential for soil leaching. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-07-14 |
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://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4357 10.4025/actasciagron.v20i0.4357 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4357 |
identifier_str_mv |
10.4025/actasciagron.v20i0.4357 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4357/2989 |
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 |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 20 (1998); 291-295 Acta Scientiarum. Agronomy; v. 20 (1998); 291-295 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
_version_ |
1799305906943426560 |