Effect of glyphosate in Johnsongrass submitted to different soil water potentials
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1080/03601234.2023.2176671 http://hdl.handle.net/11449/248367 |
Resumo: | This work aimed to study the efficiency of herbicide glyphosate to control Johnsongrass plants (Sorghum halepense) in different phenological stages of development and when submitted to different types of soil water potentials. The study was conducted in a completely randomized design, with four repetitions. The treatments were arranged in a triple factor scheme 3 × 3 × 2, being: three soil water conditions [no water deficit (−0.03 MPa), intermediate water deficit (−0.07 MPa), and high water deficit (−1.5 MPa)], associated with three doses of glyphosate (0.0, 270.0, and 540.0 g a.e. ha−1) applied in two phenological stages (4–6 leaves and 1–3 tillers). Visual control evaluations were conducted at 7, 14, 21, and 35 days after the herbicide application. Biometric and morphophysiological parameters were also analyzed. With the increase of water restriction, there was a decrease in Johnsongrass morphophysiological components, such as specific leaf area, stomatal conductance, and the difference between environment and leaf temperature, as well as the accumulation of aerial part and roots dry matter, independently of the phenological stage evaluated. The development stage of Johnsongrass influenced the control provided by glyphosate, independently of the dose used. The different water deficits studied reduced the control of glyphosate in the two Johnsongrass development stages evaluated. Severe water deficits reduced the control of glyphosate in Johnsongrass using the recommended dose. In conditions of moderate water deficit, the control was not affected. Thus, the control with lower doses can be the most affected by water deficit. |
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Effect of glyphosate in Johnsongrass submitted to different soil water potentialsherbicidemonocotyledonsSorghum halepensewater deficitweed controlThis work aimed to study the efficiency of herbicide glyphosate to control Johnsongrass plants (Sorghum halepense) in different phenological stages of development and when submitted to different types of soil water potentials. The study was conducted in a completely randomized design, with four repetitions. The treatments were arranged in a triple factor scheme 3 × 3 × 2, being: three soil water conditions [no water deficit (−0.03 MPa), intermediate water deficit (−0.07 MPa), and high water deficit (−1.5 MPa)], associated with three doses of glyphosate (0.0, 270.0, and 540.0 g a.e. ha−1) applied in two phenological stages (4–6 leaves and 1–3 tillers). Visual control evaluations were conducted at 7, 14, 21, and 35 days after the herbicide application. Biometric and morphophysiological parameters were also analyzed. With the increase of water restriction, there was a decrease in Johnsongrass morphophysiological components, such as specific leaf area, stomatal conductance, and the difference between environment and leaf temperature, as well as the accumulation of aerial part and roots dry matter, independently of the phenological stage evaluated. The development stage of Johnsongrass influenced the control provided by glyphosate, independently of the dose used. The different water deficits studied reduced the control of glyphosate in the two Johnsongrass development stages evaluated. Severe water deficits reduced the control of glyphosate in Johnsongrass using the recommended dose. In conditions of moderate water deficit, the control was not affected. Thus, the control with lower doses can be the most affected by water deficit.Departamento de Produção Vegetal (Matologia) FCAV-Faculdade de Ciências Agrarias e Veterinárias UNESPDepartment of Crop Soil and Environmental Sciences Auburn UniversityFaculdade de Tecnologia de Capão BonitoUniversity of California Agriculture and Natural Resources - UC Cooperative Extension, Mendocino & Lake CountiesDepartamento de Produção Vegetal (Matologia) FCAV-Faculdade de Ciências Agrarias e Veterinárias UNESPUniversidade Estadual Paulista (UNESP)Auburn UniversityFaculdade de Tecnologia de Capão BonitoAgriculture and Natural Resources - UC Cooperative ExtensionSilva, Antônio C. [UNESP]Marques, Ricardo F. [UNESP]Gonçalves, Clebson G.Pereira, Maria R. R.Martins, Dagoberto [UNESP]2023-07-29T13:42:03Z2023-07-29T13:42:03Z2023-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article285-293http://dx.doi.org/10.1080/03601234.2023.2176671Journal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes, v. 58, n. 4, p. 285-293, 2023.1532-41090360-1234http://hdl.handle.net/11449/24836710.1080/03601234.2023.21766712-s2.0-85148245374Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastesinfo:eu-repo/semantics/openAccess2024-06-07T13:56:13Zoai:repositorio.unesp.br:11449/248367Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:25:56.799174Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of glyphosate in Johnsongrass submitted to different soil water potentials |
title |
Effect of glyphosate in Johnsongrass submitted to different soil water potentials |
spellingShingle |
Effect of glyphosate in Johnsongrass submitted to different soil water potentials Silva, Antônio C. [UNESP] herbicide monocotyledons Sorghum halepense water deficit weed control |
title_short |
Effect of glyphosate in Johnsongrass submitted to different soil water potentials |
title_full |
Effect of glyphosate in Johnsongrass submitted to different soil water potentials |
title_fullStr |
Effect of glyphosate in Johnsongrass submitted to different soil water potentials |
title_full_unstemmed |
Effect of glyphosate in Johnsongrass submitted to different soil water potentials |
title_sort |
Effect of glyphosate in Johnsongrass submitted to different soil water potentials |
author |
Silva, Antônio C. [UNESP] |
author_facet |
Silva, Antônio C. [UNESP] Marques, Ricardo F. [UNESP] Gonçalves, Clebson G. Pereira, Maria R. R. Martins, Dagoberto [UNESP] |
author_role |
author |
author2 |
Marques, Ricardo F. [UNESP] Gonçalves, Clebson G. Pereira, Maria R. R. Martins, Dagoberto [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Auburn University Faculdade de Tecnologia de Capão Bonito Agriculture and Natural Resources - UC Cooperative Extension |
dc.contributor.author.fl_str_mv |
Silva, Antônio C. [UNESP] Marques, Ricardo F. [UNESP] Gonçalves, Clebson G. Pereira, Maria R. R. Martins, Dagoberto [UNESP] |
dc.subject.por.fl_str_mv |
herbicide monocotyledons Sorghum halepense water deficit weed control |
topic |
herbicide monocotyledons Sorghum halepense water deficit weed control |
description |
This work aimed to study the efficiency of herbicide glyphosate to control Johnsongrass plants (Sorghum halepense) in different phenological stages of development and when submitted to different types of soil water potentials. The study was conducted in a completely randomized design, with four repetitions. The treatments were arranged in a triple factor scheme 3 × 3 × 2, being: three soil water conditions [no water deficit (−0.03 MPa), intermediate water deficit (−0.07 MPa), and high water deficit (−1.5 MPa)], associated with three doses of glyphosate (0.0, 270.0, and 540.0 g a.e. ha−1) applied in two phenological stages (4–6 leaves and 1–3 tillers). Visual control evaluations were conducted at 7, 14, 21, and 35 days after the herbicide application. Biometric and morphophysiological parameters were also analyzed. With the increase of water restriction, there was a decrease in Johnsongrass morphophysiological components, such as specific leaf area, stomatal conductance, and the difference between environment and leaf temperature, as well as the accumulation of aerial part and roots dry matter, independently of the phenological stage evaluated. The development stage of Johnsongrass influenced the control provided by glyphosate, independently of the dose used. The different water deficits studied reduced the control of glyphosate in the two Johnsongrass development stages evaluated. Severe water deficits reduced the control of glyphosate in Johnsongrass using the recommended dose. In conditions of moderate water deficit, the control was not affected. Thus, the control with lower doses can be the most affected by water deficit. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T13:42:03Z 2023-07-29T13:42:03Z 2023-01-01 |
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/10.1080/03601234.2023.2176671 Journal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes, v. 58, n. 4, p. 285-293, 2023. 1532-4109 0360-1234 http://hdl.handle.net/11449/248367 10.1080/03601234.2023.2176671 2-s2.0-85148245374 |
url |
http://dx.doi.org/10.1080/03601234.2023.2176671 http://hdl.handle.net/11449/248367 |
identifier_str_mv |
Journal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes, v. 58, n. 4, p. 285-293, 2023. 1532-4109 0360-1234 10.1080/03601234.2023.2176671 2-s2.0-85148245374 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
285-293 |
dc.source.none.fl_str_mv |
Scopus 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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1808128931396583424 |