Elephant grass response to amino-acid synthesis inhibitor herbicides.

Detalhes bibliográficos
Autor(a) principal: BRIGHENTI, A. M.
Data de Publicação: 2017
Outros Autores: LEDO, F. J. da S., MACHADO, J. C., VAROTTO, Y. V. G.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1067721
Resumo: Abstract Elephant grass (Pennisetum purpureum Schum.) fodder productivity and quality are directly affected by weed interference. The difficulty in controlling weed species is one of the major limitations to the production and use of elephant grass as a forage crop in dairy farming and biomass for energy production. In this study, field experiments were conducted in 2014 and 2015 at two locations in Minas Gerais State, Brazil, to evaluate the tolerance of elephant grass pasture to acetolactate synthase inhibitor herbicides. The experimental pastures were treated at 1× and 2× the normal field-use rates (g ai ha-1) with metsulfuron-methyl (7.8 and 15.6), chlorimuron-ethyl (15 and 30), halosulfuron (112.5 and 225), ethoxysulfuron (150 and 300), and nicosulfuron (60 and 120). A nontreated control was also included. The results showed that metsulfuron-methyl, chlorimuron-ethyl, halosulfuron, and ethoxysulfuron caused mild injury symptoms on elephant grass plants, but did not reduce forage biomass production. Nicosulfuron caused considerable percentage injury to the plants, which varied from 53% to 73% and from 65% to 83% for the lower and higher rates, respectively. Elephant grass was tolerant of metsulfuron-methyl, chlorimuron-ethyl, halosulfuron, and ethoxysulfuron. Therefore, these herbicides could potentially control weeds in elephant grass fields.
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spelling Elephant grass response to amino-acid synthesis inhibitor herbicides.Napier grassSelectivityTolerancePennisetum PurpureumforageAbstract Elephant grass (Pennisetum purpureum Schum.) fodder productivity and quality are directly affected by weed interference. The difficulty in controlling weed species is one of the major limitations to the production and use of elephant grass as a forage crop in dairy farming and biomass for energy production. In this study, field experiments were conducted in 2014 and 2015 at two locations in Minas Gerais State, Brazil, to evaluate the tolerance of elephant grass pasture to acetolactate synthase inhibitor herbicides. The experimental pastures were treated at 1× and 2× the normal field-use rates (g ai ha-1) with metsulfuron-methyl (7.8 and 15.6), chlorimuron-ethyl (15 and 30), halosulfuron (112.5 and 225), ethoxysulfuron (150 and 300), and nicosulfuron (60 and 120). A nontreated control was also included. The results showed that metsulfuron-methyl, chlorimuron-ethyl, halosulfuron, and ethoxysulfuron caused mild injury symptoms on elephant grass plants, but did not reduce forage biomass production. Nicosulfuron caused considerable percentage injury to the plants, which varied from 53% to 73% and from 65% to 83% for the lower and higher rates, respectively. Elephant grass was tolerant of metsulfuron-methyl, chlorimuron-ethyl, halosulfuron, and ethoxysulfuron. Therefore, these herbicides could potentially control weeds in elephant grass fields.ALEXANDRE MAGNO B DOS SANTOS, CNPGL; FRANCISCO JOSE DA SILVA LEDO, CNPGL; JUAREZ CAMPOLINA MACHADO, CNPGL; Yago Vieira Guerra Varotto, CES JF.BRIGHENTI, A. M.LEDO, F. J. da S.MACHADO, J. C.VAROTTO, Y. V. G.2017-03-27T11:11:11Z2017-03-27T11:11:11Z2017-03-2720172017-07-07T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleAustralian Journal of Crop Science, v. 11, n. 1, p. 38-42, 2017.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1067721enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T04:20:07Zoai:www.alice.cnptia.embrapa.br:doc/1067721Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T04:20:07falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T04:20:07Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Elephant grass response to amino-acid synthesis inhibitor herbicides.
title Elephant grass response to amino-acid synthesis inhibitor herbicides.
spellingShingle Elephant grass response to amino-acid synthesis inhibitor herbicides.
BRIGHENTI, A. M.
Napier grass
Selectivity
Tolerance
Pennisetum Purpureum
forage
title_short Elephant grass response to amino-acid synthesis inhibitor herbicides.
title_full Elephant grass response to amino-acid synthesis inhibitor herbicides.
title_fullStr Elephant grass response to amino-acid synthesis inhibitor herbicides.
title_full_unstemmed Elephant grass response to amino-acid synthesis inhibitor herbicides.
title_sort Elephant grass response to amino-acid synthesis inhibitor herbicides.
author BRIGHENTI, A. M.
author_facet BRIGHENTI, A. M.
LEDO, F. J. da S.
MACHADO, J. C.
VAROTTO, Y. V. G.
author_role author
author2 LEDO, F. J. da S.
MACHADO, J. C.
VAROTTO, Y. V. G.
author2_role author
author
author
dc.contributor.none.fl_str_mv ALEXANDRE MAGNO B DOS SANTOS, CNPGL; FRANCISCO JOSE DA SILVA LEDO, CNPGL; JUAREZ CAMPOLINA MACHADO, CNPGL; Yago Vieira Guerra Varotto, CES JF.
dc.contributor.author.fl_str_mv BRIGHENTI, A. M.
LEDO, F. J. da S.
MACHADO, J. C.
VAROTTO, Y. V. G.
dc.subject.por.fl_str_mv Napier grass
Selectivity
Tolerance
Pennisetum Purpureum
forage
topic Napier grass
Selectivity
Tolerance
Pennisetum Purpureum
forage
description Abstract Elephant grass (Pennisetum purpureum Schum.) fodder productivity and quality are directly affected by weed interference. The difficulty in controlling weed species is one of the major limitations to the production and use of elephant grass as a forage crop in dairy farming and biomass for energy production. In this study, field experiments were conducted in 2014 and 2015 at two locations in Minas Gerais State, Brazil, to evaluate the tolerance of elephant grass pasture to acetolactate synthase inhibitor herbicides. The experimental pastures were treated at 1× and 2× the normal field-use rates (g ai ha-1) with metsulfuron-methyl (7.8 and 15.6), chlorimuron-ethyl (15 and 30), halosulfuron (112.5 and 225), ethoxysulfuron (150 and 300), and nicosulfuron (60 and 120). A nontreated control was also included. The results showed that metsulfuron-methyl, chlorimuron-ethyl, halosulfuron, and ethoxysulfuron caused mild injury symptoms on elephant grass plants, but did not reduce forage biomass production. Nicosulfuron caused considerable percentage injury to the plants, which varied from 53% to 73% and from 65% to 83% for the lower and higher rates, respectively. Elephant grass was tolerant of metsulfuron-methyl, chlorimuron-ethyl, halosulfuron, and ethoxysulfuron. Therefore, these herbicides could potentially control weeds in elephant grass fields.
publishDate 2017
dc.date.none.fl_str_mv 2017-03-27T11:11:11Z
2017-03-27T11:11:11Z
2017-03-27
2017
2017-07-07T11:11:11Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Australian Journal of Crop Science, v. 11, n. 1, p. 38-42, 2017.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1067721
identifier_str_mv Australian Journal of Crop Science, v. 11, n. 1, p. 38-42, 2017.
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1067721
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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