Impact of glyphosate formulations and adjuvants: effects on leaf interaction, metabolism, and control of sourgrass
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/0103-8478cr20201102 http://hdl.handle.net/11449/218821 |
Resumo: | The addition of commercial formulations and adjuvants to a tank mix may result in differences in the wettability on the plant surface, foliar uptake and herbicide efficacy. Thus, the objectives of this study were to evaluate the influence of glyphosate formulations and tank-mixture adjuvants on the contact angle (CA), uptake, metabolism and sourgrass control and the damage to the cuticular microstructure of this species caused by herbicide solutions. For this purpose, assays were carried out in a completely randomized design, and treatments distributed in a 2x5+1 factorial scheme with five replications. Two glyphosate formulations isopropylamine salt (SL) and ammonium salt (WG) combined or not with the adjuvant methylated soybean oil (MSO), mineral oil (MO), ethoxylated alkyl ester (EAE) or polyoxyethylenealkylphenol ether (PAE); and one control (water) were evaluated. CA measurements of the droplets deposited on a sourgrass leaf surface and on the standard surface (parafilm) were obtained using a tensiometer. Herbicide uptake and shikimate accumulation were simultaneously determined by chromatography and spectrometry. The control effect was assessed by observing plant survival dry weight reductions. The glyphosate SL and WG formulations had similar effects on the variables analyzed. However, mixing the adjuvants EAE, MO or MSO with either formulation of herbicide led to greater wettability and more severe damage to the cuticular microstructure, favoring glyphosate uptake and shikimate accumulation. Despite evidence regarding the treatments containing oils/surfactants, the control effect on sourgrass was similar. The combination of glyphosate formulations with such adjuvants is potentially more effective and guarantees satisfactory sourgrass control. |
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Impact of glyphosate formulations and adjuvants: effects on leaf interaction, metabolism, and control of sourgrassDigitaria insularis (L.) Feddeherbicidecontact anglescanning electron microscopyshikimic acidThe addition of commercial formulations and adjuvants to a tank mix may result in differences in the wettability on the plant surface, foliar uptake and herbicide efficacy. Thus, the objectives of this study were to evaluate the influence of glyphosate formulations and tank-mixture adjuvants on the contact angle (CA), uptake, metabolism and sourgrass control and the damage to the cuticular microstructure of this species caused by herbicide solutions. For this purpose, assays were carried out in a completely randomized design, and treatments distributed in a 2x5+1 factorial scheme with five replications. Two glyphosate formulations isopropylamine salt (SL) and ammonium salt (WG) combined or not with the adjuvant methylated soybean oil (MSO), mineral oil (MO), ethoxylated alkyl ester (EAE) or polyoxyethylenealkylphenol ether (PAE); and one control (water) were evaluated. CA measurements of the droplets deposited on a sourgrass leaf surface and on the standard surface (parafilm) were obtained using a tensiometer. Herbicide uptake and shikimate accumulation were simultaneously determined by chromatography and spectrometry. The control effect was assessed by observing plant survival dry weight reductions. The glyphosate SL and WG formulations had similar effects on the variables analyzed. However, mixing the adjuvants EAE, MO or MSO with either formulation of herbicide led to greater wettability and more severe damage to the cuticular microstructure, favoring glyphosate uptake and shikimate accumulation. Despite evidence regarding the treatments containing oils/surfactants, the control effect on sourgrass was similar. The combination of glyphosate formulations with such adjuvants is potentially more effective and guarantees satisfactory sourgrass control.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Univ Fed Parana UFPR, Dept Ciencias Agron, BR-85950000 Palotina, PR, BrazilUniv Fed Vicosa UFV, Dept Fitopatol, Vicosa, MG, BrazilUniv Estadual Paulista Julio de Mesquita Filho FC, Dept Protecao Vegetal, Fac Ciencias Agron, Botucatu, SP, BrazilUniv Estadual Paulista Julio de Mesquita Filho FC, Dept Protecao Vegetal, Fac Ciencias Agron, Botucatu, SP, BrazilCNPq: 159038/2013-8CAPES: 001Univ Federal Santa MariaUniversidade Federal do Paraná (UFPR)Universidade Federal de Viçosa (UFV)Universidade Estadual Paulista (UNESP)Cavalieri, Jhonatan DiegoSantos, Samuel Alves dosCarbonari, Caio Antonio [UNESP]Raetano, Carlos Gilberto [UNESP]2022-04-28T17:23:14Z2022-04-28T17:23:14Z2022-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article12http://dx.doi.org/10.1590/0103-8478cr20201102Ciencia Rural. Santa Maria: Univ Federal Santa Maria, v. 52, n. 8, 12 p., 2022.0103-8478http://hdl.handle.net/11449/21882110.1590/0103-8478cr20201102WOS:000759582800001Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCiencia Ruralinfo:eu-repo/semantics/openAccess2024-04-30T18:07:43Zoai:repositorio.unesp.br:11449/218821Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:27:11.003562Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Impact of glyphosate formulations and adjuvants: effects on leaf interaction, metabolism, and control of sourgrass |
title |
Impact of glyphosate formulations and adjuvants: effects on leaf interaction, metabolism, and control of sourgrass |
spellingShingle |
Impact of glyphosate formulations and adjuvants: effects on leaf interaction, metabolism, and control of sourgrass Cavalieri, Jhonatan Diego Digitaria insularis (L.) Fedde herbicide contact angle scanning electron microscopy shikimic acid |
title_short |
Impact of glyphosate formulations and adjuvants: effects on leaf interaction, metabolism, and control of sourgrass |
title_full |
Impact of glyphosate formulations and adjuvants: effects on leaf interaction, metabolism, and control of sourgrass |
title_fullStr |
Impact of glyphosate formulations and adjuvants: effects on leaf interaction, metabolism, and control of sourgrass |
title_full_unstemmed |
Impact of glyphosate formulations and adjuvants: effects on leaf interaction, metabolism, and control of sourgrass |
title_sort |
Impact of glyphosate formulations and adjuvants: effects on leaf interaction, metabolism, and control of sourgrass |
author |
Cavalieri, Jhonatan Diego |
author_facet |
Cavalieri, Jhonatan Diego Santos, Samuel Alves dos Carbonari, Caio Antonio [UNESP] Raetano, Carlos Gilberto [UNESP] |
author_role |
author |
author2 |
Santos, Samuel Alves dos Carbonari, Caio Antonio [UNESP] Raetano, Carlos Gilberto [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal do Paraná (UFPR) Universidade Federal de Viçosa (UFV) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Cavalieri, Jhonatan Diego Santos, Samuel Alves dos Carbonari, Caio Antonio [UNESP] Raetano, Carlos Gilberto [UNESP] |
dc.subject.por.fl_str_mv |
Digitaria insularis (L.) Fedde herbicide contact angle scanning electron microscopy shikimic acid |
topic |
Digitaria insularis (L.) Fedde herbicide contact angle scanning electron microscopy shikimic acid |
description |
The addition of commercial formulations and adjuvants to a tank mix may result in differences in the wettability on the plant surface, foliar uptake and herbicide efficacy. Thus, the objectives of this study were to evaluate the influence of glyphosate formulations and tank-mixture adjuvants on the contact angle (CA), uptake, metabolism and sourgrass control and the damage to the cuticular microstructure of this species caused by herbicide solutions. For this purpose, assays were carried out in a completely randomized design, and treatments distributed in a 2x5+1 factorial scheme with five replications. Two glyphosate formulations isopropylamine salt (SL) and ammonium salt (WG) combined or not with the adjuvant methylated soybean oil (MSO), mineral oil (MO), ethoxylated alkyl ester (EAE) or polyoxyethylenealkylphenol ether (PAE); and one control (water) were evaluated. CA measurements of the droplets deposited on a sourgrass leaf surface and on the standard surface (parafilm) were obtained using a tensiometer. Herbicide uptake and shikimate accumulation were simultaneously determined by chromatography and spectrometry. The control effect was assessed by observing plant survival dry weight reductions. The glyphosate SL and WG formulations had similar effects on the variables analyzed. However, mixing the adjuvants EAE, MO or MSO with either formulation of herbicide led to greater wettability and more severe damage to the cuticular microstructure, favoring glyphosate uptake and shikimate accumulation. Despite evidence regarding the treatments containing oils/surfactants, the control effect on sourgrass was similar. The combination of glyphosate formulations with such adjuvants is potentially more effective and guarantees satisfactory sourgrass control. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-04-28T17:23:14Z 2022-04-28T17:23:14Z 2022-01-01 |
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/10.1590/0103-8478cr20201102 Ciencia Rural. Santa Maria: Univ Federal Santa Maria, v. 52, n. 8, 12 p., 2022. 0103-8478 http://hdl.handle.net/11449/218821 10.1590/0103-8478cr20201102 WOS:000759582800001 |
url |
http://dx.doi.org/10.1590/0103-8478cr20201102 http://hdl.handle.net/11449/218821 |
identifier_str_mv |
Ciencia Rural. Santa Maria: Univ Federal Santa Maria, v. 52, n. 8, 12 p., 2022. 0103-8478 10.1590/0103-8478cr20201102 WOS:000759582800001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ciencia Rural |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
12 |
dc.publisher.none.fl_str_mv |
Univ Federal Santa Maria |
publisher.none.fl_str_mv |
Univ Federal Santa Maria |
dc.source.none.fl_str_mv |
Web of Science 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_ |
1808129321213100032 |