Mefenpyr-diethyl as a safener for haloxyfop-methyl in bahiagrass

Detalhes bibliográficos
Autor(a) principal: Dias, Roque De Carvalho [UNESP]
Data de Publicação: 2021
Outros Autores: Bianchi, Leandro [UNESP], Anunciato, Vitor Muller [UNESP], Tropaldi, Leandro [UNESP], Silva, Paulo Vinicius Da, Carbonari, Caio Antonio [UNESP], Velini, Edivaldo Domingues [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/2447-536X.v27i3.2306
http://hdl.handle.net/11449/213423
Resumo: Mefenpyr-diethyl is a foliar-acting safener of the pyrazoline chemical group, and after its absorption, the metabolization and detoxification of herbicides occur in treated plants. Studies have demonstrated the protective effect of this safener for the herbicide fenoxaprop-P-ethyl in grass. Thus, this work aimed to evaluate whether a tank mixture of mefenpyr-diethyl has a protective response to haloxyfop-methyl in non-perennial bahiagrass. The experiment had a completely randomized design and was carried out in a greenhouse, using five replications with a 10x2 factorial scheme and ten doses of haloxyfop-methyl (0.00, 0.24, 0.49, 0.97, 1.95, 3.90, 7.79, 15.59, 31.28, and 62.35 g a.i. ha-1) in the presence or absence of a tank mixture of mefenpyr-diethyl (50 g a.i. ha-1). Phytotoxicity and electron transport rate (ETR) were evaluated at 7, 14, 21, and 28 days after application (DAA), in addition to plant height and dry biomass at 28 DAA. In general, phytotoxicity increased due to the higher levels of the herbicide haloxyfop-methyl. The application of mefenpyr-diethyl, in turn, provided lower levels of phytotoxicity, as well as lower reductions in ETR, height, and dry biomass when compared to untreated plants. These results show the safener action of a tank mixture of mefenpyr-diethyl on low doses of haloxyfop-methyl in non-perennial bahiagrass.
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spelling Mefenpyr-diethyl as a safener for haloxyfop-methyl in bahiagrassMefenpyr-diethyl como safener para o uso de haloxyfop-methyl em grama batataisACCase inhibitorschemical protectorherbicidePaspalum notatuminibidores da ACCaseprotetor químicoherbicidaPaspalum notatumMefenpyr-diethyl is a foliar-acting safener of the pyrazoline chemical group, and after its absorption, the metabolization and detoxification of herbicides occur in treated plants. Studies have demonstrated the protective effect of this safener for the herbicide fenoxaprop-P-ethyl in grass. Thus, this work aimed to evaluate whether a tank mixture of mefenpyr-diethyl has a protective response to haloxyfop-methyl in non-perennial bahiagrass. The experiment had a completely randomized design and was carried out in a greenhouse, using five replications with a 10x2 factorial scheme and ten doses of haloxyfop-methyl (0.00, 0.24, 0.49, 0.97, 1.95, 3.90, 7.79, 15.59, 31.28, and 62.35 g a.i. ha-1) in the presence or absence of a tank mixture of mefenpyr-diethyl (50 g a.i. ha-1). Phytotoxicity and electron transport rate (ETR) were evaluated at 7, 14, 21, and 28 days after application (DAA), in addition to plant height and dry biomass at 28 DAA. In general, phytotoxicity increased due to the higher levels of the herbicide haloxyfop-methyl. The application of mefenpyr-diethyl, in turn, provided lower levels of phytotoxicity, as well as lower reductions in ETR, height, and dry biomass when compared to untreated plants. These results show the safener action of a tank mixture of mefenpyr-diethyl on low doses of haloxyfop-methyl in non-perennial bahiagrass.O mefenpyr-diethyl é um safener de ação foliar do grupo químico das pyrazolines e após a sua absorção, ocorre à metabolização e desintoxicação de herbicidas em plantas tratadas. Estudos demonstraram efeito protetor desse safener para o herbicida fenoxaprop-P-ethyl em gramíneas. Assim, o objetivo desse trabalho foi avaliar se o mefenpyr-diethyl em mistura de tanque possui resposta protetora ao haloxyfop-methyl em grama batatais não perenizada. O experimento foi realizado em casa de vegetação em delineamento inteiramente casualizado, com cinco repetições com esquema fatorial 10x2, sendo dez doses do haloxyfop-methyl (0.00; 0,24; 0,49; 0,97; 1,95; 3,90; 7,79; 15,59; 31,28 e 62,35 g ha-1 i.a.), na presença ou ausência do mefenpyr-diethyl (50 g ha-1 i.a.) em mistura de tanque. Foram realizadas avaliações de fitointoxicação e taxa de transporte de elétrons (ETR) aos 7, 14, 21 e 28 dias após a aplicação (DAA), além de altura e biomassa seca da parte aérea das plantas aos 28 DAA. De maneira geral, houve aumento da fitointoxicação das plantas em função do aumento do herbicida haloxyfop-methyl. A aplicação de mefenpyr-diethyl por sua vez, proporcionou menores níveis de fitointoxicação, menores reduções de ETR, altura e biomassa seca quando comparadas as plantas não tratadas. Estes resultados mostram a ação protetora de mefenpyr-diethyl em mistura em tanque com baixas doses de haloxyfop-methyl em grama batatais não perenizada.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Universidade Estadual Paulista “Júlio de Mesquita Filho”, Faculdade de Ciências AgronômicasUniversidade Estadual Paulista “Júlio de Mesquita Filho”, Faculdade de Ciências Agrárias e TecnológicasUniversidade Federal de Grande Dourados, Faculdade de Ciências Agrárias DouradosUniversidade Estadual Paulista “Júlio de Mesquita Filho”, Faculdade de Ciências AgronômicasUniversidade Estadual Paulista “Júlio de Mesquita Filho”, Faculdade de Ciências Agrárias e TecnológicasCNPq: 140683/2018-6Sociedade Brasileira de Floricultura e Plantas OrnamentaisUniversidade Estadual Paulista (Unesp)Universidade Federal de Grande DouradosDias, Roque De Carvalho [UNESP]Bianchi, Leandro [UNESP]Anunciato, Vitor Muller [UNESP]Tropaldi, Leandro [UNESP]Silva, Paulo Vinicius DaCarbonari, Caio Antonio [UNESP]Velini, Edivaldo Domingues [UNESP]2021-07-14T10:55:07Z2021-07-14T10:55:07Z2021-06-02info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article-application/pdfhttp://dx.doi.org/10.1590/2447-536X.v27i3.2306Ornamental Horticulture. Sociedade Brasileira de Floricultura e Plantas Ornamentais, p. -, 2021.2447-536Xhttp://hdl.handle.net/11449/21342310.1590/2447-536X.v27i3.2306S2447-536X2021005001201S2447-536X2021005001201.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengOrnamental Horticultureinfo:eu-repo/semantics/openAccess2024-04-30T15:58:33Zoai:repositorio.unesp.br:11449/213423Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:49:52.501436Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Mefenpyr-diethyl as a safener for haloxyfop-methyl in bahiagrass
Mefenpyr-diethyl como safener para o uso de haloxyfop-methyl em grama batatais
title Mefenpyr-diethyl as a safener for haloxyfop-methyl in bahiagrass
spellingShingle Mefenpyr-diethyl as a safener for haloxyfop-methyl in bahiagrass
Dias, Roque De Carvalho [UNESP]
ACCase inhibitors
chemical protector
herbicide
Paspalum notatum
inibidores da ACCase
protetor químico
herbicida
Paspalum notatum
title_short Mefenpyr-diethyl as a safener for haloxyfop-methyl in bahiagrass
title_full Mefenpyr-diethyl as a safener for haloxyfop-methyl in bahiagrass
title_fullStr Mefenpyr-diethyl as a safener for haloxyfop-methyl in bahiagrass
title_full_unstemmed Mefenpyr-diethyl as a safener for haloxyfop-methyl in bahiagrass
title_sort Mefenpyr-diethyl as a safener for haloxyfop-methyl in bahiagrass
author Dias, Roque De Carvalho [UNESP]
author_facet Dias, Roque De Carvalho [UNESP]
Bianchi, Leandro [UNESP]
Anunciato, Vitor Muller [UNESP]
Tropaldi, Leandro [UNESP]
Silva, Paulo Vinicius Da
Carbonari, Caio Antonio [UNESP]
Velini, Edivaldo Domingues [UNESP]
author_role author
author2 Bianchi, Leandro [UNESP]
Anunciato, Vitor Muller [UNESP]
Tropaldi, Leandro [UNESP]
Silva, Paulo Vinicius Da
Carbonari, Caio Antonio [UNESP]
Velini, Edivaldo Domingues [UNESP]
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade Federal de Grande Dourados
dc.contributor.author.fl_str_mv Dias, Roque De Carvalho [UNESP]
Bianchi, Leandro [UNESP]
Anunciato, Vitor Muller [UNESP]
Tropaldi, Leandro [UNESP]
Silva, Paulo Vinicius Da
Carbonari, Caio Antonio [UNESP]
Velini, Edivaldo Domingues [UNESP]
dc.subject.por.fl_str_mv ACCase inhibitors
chemical protector
herbicide
Paspalum notatum
inibidores da ACCase
protetor químico
herbicida
Paspalum notatum
topic ACCase inhibitors
chemical protector
herbicide
Paspalum notatum
inibidores da ACCase
protetor químico
herbicida
Paspalum notatum
description Mefenpyr-diethyl is a foliar-acting safener of the pyrazoline chemical group, and after its absorption, the metabolization and detoxification of herbicides occur in treated plants. Studies have demonstrated the protective effect of this safener for the herbicide fenoxaprop-P-ethyl in grass. Thus, this work aimed to evaluate whether a tank mixture of mefenpyr-diethyl has a protective response to haloxyfop-methyl in non-perennial bahiagrass. The experiment had a completely randomized design and was carried out in a greenhouse, using five replications with a 10x2 factorial scheme and ten doses of haloxyfop-methyl (0.00, 0.24, 0.49, 0.97, 1.95, 3.90, 7.79, 15.59, 31.28, and 62.35 g a.i. ha-1) in the presence or absence of a tank mixture of mefenpyr-diethyl (50 g a.i. ha-1). Phytotoxicity and electron transport rate (ETR) were evaluated at 7, 14, 21, and 28 days after application (DAA), in addition to plant height and dry biomass at 28 DAA. In general, phytotoxicity increased due to the higher levels of the herbicide haloxyfop-methyl. The application of mefenpyr-diethyl, in turn, provided lower levels of phytotoxicity, as well as lower reductions in ETR, height, and dry biomass when compared to untreated plants. These results show the safener action of a tank mixture of mefenpyr-diethyl on low doses of haloxyfop-methyl in non-perennial bahiagrass.
publishDate 2021
dc.date.none.fl_str_mv 2021-07-14T10:55:07Z
2021-07-14T10:55:07Z
2021-06-02
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/2447-536X.v27i3.2306
Ornamental Horticulture. Sociedade Brasileira de Floricultura e Plantas Ornamentais, p. -, 2021.
2447-536X
http://hdl.handle.net/11449/213423
10.1590/2447-536X.v27i3.2306
S2447-536X2021005001201
S2447-536X2021005001201.pdf
url http://dx.doi.org/10.1590/2447-536X.v27i3.2306
http://hdl.handle.net/11449/213423
identifier_str_mv Ornamental Horticulture. Sociedade Brasileira de Floricultura e Plantas Ornamentais, p. -, 2021.
2447-536X
10.1590/2447-536X.v27i3.2306
S2447-536X2021005001201
S2447-536X2021005001201.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Ornamental Horticulture
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 Sociedade Brasileira de Floricultura e Plantas Ornamentais
publisher.none.fl_str_mv Sociedade Brasileira de Floricultura e Plantas Ornamentais
dc.source.none.fl_str_mv SciELO
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129363040796672

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