Impact of glyphosate formulations and adjuvants: effects on leaf interaction, metabolism, and control of sourgrass

Detalhes bibliográficos
Autor(a) principal: Cavalieri, Jhonatan Diego
Data de Publicação: 2022
Outros Autores: Santos, Samuel Alves dos, Carbonari, Caio Antonio [UNESP], Raetano, Carlos Gilberto [UNESP]
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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spelling 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
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