Artigo

Tolerância de leguminosas de cobertura do solo a Herbicidas

There is little research regarding to tolerance of soil cover legumes to herbicides. Products that are selective to these plants and show satisfactory control of harmful plants are still scarce. This paper has the objective to evaluate the tolerance to herbicide of four legume plants. The experiment...

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Autor principal: Silva, José Ferreira da
Outros Autores: Bueno, Carlos Roberto
Grau: Artigo
Idioma: pt_BR
Publicado em: Acta Amazonica 2020
Assuntos:
Desmodium
Mucuna
Pueraria
Amazon
Selectivity
Desmodium
Mucuna
Pueraria
Amazônia
Seletividade
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/13293
id oai:repositorio:1-13293
recordtype dspace
spelling oai:repositorio:1-13293 Tolerância de leguminosas de cobertura do solo a Herbicidas Tolerance of soil cover legumes to Herbicides Silva, José Ferreira da Bueno, Carlos Roberto Desmodium Mucuna Pueraria Amazon Selectivity Desmodium Mucuna Pueraria Amazônia Seletividade There is little research regarding to tolerance of soil cover legumes to herbicides. Products that are selective to these plants and show satisfactory control of harmful plants are still scarce. This paper has the objective to evaluate the tolerance to herbicide of four legume plants. The experiment was installed in a greenhouse. The four legumes were sowed in a 2 kg plastic bag. The substratum was homogenized with two seeds of Pueraria phaseoloides, Desmodium ovalifolium, Mucuna aterrima and Mucuna cochinchinensis. The herbicides applied were 2,4-DB, in post-emergence and alachlor, imazaquin and pendimethalin in pre-emergence. The statistical experimental method used was completely randomized in a factorial experiment (4x4x5x4) with four legume species, four herbicides and five doses of each herbicide with four replications. Thirty six days after sowing, P. phaseoloides showed tolerance to the herbicides alachlor and imazaquin and susceptibility to 2,4-DB and pendimethalin. D. ovalifolium was susceptible to herbicides except the alachlor. M. aterrima showed tolerance to alachlor, imazaquin and pendimethalin and was susceptible to 2,4-DB. The herbicides alachlor and imazaquin were not phytotoxic to M. cochinchinensis. However, severe injury was observed with the use of 2,4-DB and pendimethalin. São poucas as pesquisas de tolerância de leguminosas de cobertura do solo a herbicidas visando selecionar produtos que sejam seletivos a estas plantas e que apresentem controle satisfatório das plantas daninhas. Com o objetivo avaliar a tolerância de quatro leguminosas a herbicidas, instalou-se um experimento em condições de casa-de-vegetação. As leguminosas foram plantadas em sacos plásticos de dois litros, contendo substrato homogeneizado com duas sementes das leguminosas Pueraria phaseoloides, Desmodium ovalifolium, Mucuna aterrima e Mucuna cochinchinensis. Os herbicidas aplicados foram 2,4-DB, em pós-emergência, e alachlor, imazaquin e pendimethalin em pré-emergência. O delineamento experimental foi inteiramente ao acaso, em esquema fatorial de 4x4x5x4 com quatro espécies de leguminosas, quatro herbicidas e cinco doses de cada herbicida, respectivamente, repetidos quatro vezes. Aos trinta e seis dias após o plantio a Pueraria phaseoloides mostrou-se tolerante aos herbicidas alachlor e imazaquin e suscetível ao 2,4-DB e pendimethalin. O Desmodium ovalifolium foi suscetível aos herbicidas nas doses usadas, exceto o alachlor. A Mucuna aterrima apresentou tolerância ao alachlor, imazaquin e pendimethalin e foi suscetível ao 2,4-DB. Os herbicidas alachlor e imazaquin não foram fítotóxicos à Mucuna cochinchinensis, enquanto 2,4-DB e pendimethalin causaram severas injúrias. 2020-04-24T15:18:39Z 2020-04-24T15:18:39Z 2002 Artigo https://repositorio.inpa.gov.br/handle/1/13293 10.1590/1809-43922002322204 pt_BR Volume 32, Número 2, Pags. 193-193 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Acta Amazonica
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language pt_BR
topic Desmodium
Mucuna
Pueraria
Amazon
Selectivity
Desmodium
Mucuna
Pueraria
Amazônia
Seletividade
spellingShingle Desmodium
Mucuna
Pueraria
Amazon
Selectivity
Desmodium
Mucuna
Pueraria
Amazônia
Seletividade
Silva, José Ferreira da
Tolerância de leguminosas de cobertura do solo a Herbicidas
topic_facet Desmodium
Mucuna
Pueraria
Amazon
Selectivity
Desmodium
Mucuna
Pueraria
Amazônia
Seletividade
description There is little research regarding to tolerance of soil cover legumes to herbicides. Products that are selective to these plants and show satisfactory control of harmful plants are still scarce. This paper has the objective to evaluate the tolerance to herbicide of four legume plants. The experiment was installed in a greenhouse. The four legumes were sowed in a 2 kg plastic bag. The substratum was homogenized with two seeds of Pueraria phaseoloides, Desmodium ovalifolium, Mucuna aterrima and Mucuna cochinchinensis. The herbicides applied were 2,4-DB, in post-emergence and alachlor, imazaquin and pendimethalin in pre-emergence. The statistical experimental method used was completely randomized in a factorial experiment (4x4x5x4) with four legume species, four herbicides and five doses of each herbicide with four replications. Thirty six days after sowing, P. phaseoloides showed tolerance to the herbicides alachlor and imazaquin and susceptibility to 2,4-DB and pendimethalin. D. ovalifolium was susceptible to herbicides except the alachlor. M. aterrima showed tolerance to alachlor, imazaquin and pendimethalin and was susceptible to 2,4-DB. The herbicides alachlor and imazaquin were not phytotoxic to M. cochinchinensis. However, severe injury was observed with the use of 2,4-DB and pendimethalin.
format Artigo
author Silva, José Ferreira da
author2 Bueno, Carlos Roberto
author2Str Bueno, Carlos Roberto
title Tolerância de leguminosas de cobertura do solo a Herbicidas
title_short Tolerância de leguminosas de cobertura do solo a Herbicidas
title_full Tolerância de leguminosas de cobertura do solo a Herbicidas
title_fullStr Tolerância de leguminosas de cobertura do solo a Herbicidas
title_full_unstemmed Tolerância de leguminosas de cobertura do solo a Herbicidas
title_sort tolerância de leguminosas de cobertura do solo a herbicidas
publisher Acta Amazonica
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/13293
_version_ 1787141289490251776
score 11.755432

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