Luminous restriction and chemical control with glyphosate in integrated management of Urochloa brizantha L.

Detalhes bibliográficos
Autor(a) principal: Silva, Matheus Sales Nogueira e
Data de Publicação: 2022
Outros Autores: Santos, Leonardo David Tuffi, Donato, Luan Mateus Silva, Ferreira, Guilherme Augusto de Paiva, Barbosa, Dandara Maria Clara do Rosario, Barros, Rodrigo Eduardo, Reis, Matheus Mendes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Research, Society and Development
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/38758
Resumo: The objective was to evaluate the effect of different light conditions in the cultivation environment on the control of U. brizantha by glyphosate. The experimental design was in a plot scheme divided into randomized blocks with five replications. In the plots, environments with light conditions were allocated: full sun, intermittent shading with 3 hours of sun/day, and continuous shading. In the subplots, the herbicide doses: 0, 480, 960, and 1440 g. a. e. glyphosate ha-1 applied to U. brizantha plants. The control of U. brizantha by the herbicide glyphosate was more efficient in shaded environments, either with continuous or intermittent shading, in relation to full sun, indicating that the conditions of light influenced the action of the herbicide. At 35 DAA, control values of U. brizantha above 80% were observed from the 765 g. a. e ha-1 dose of glyphosate for treatments with shading. Already in conditions of full sun, 65% of control values were reached in the highest dose, which is considered unsatisfactory for the management of this species. U. brizantha submitted to light restriction had the content of epicuticular wax, starch, soluble and total sugar reduced; however, the leaf area was larger in these environments compared to full sun. The reserve content, epicuticular wax, and leaf area variables are affected by shading with a direct relationship with the greater control of U. brizantha by glyphosate in this cultivation condition.
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spelling Luminous restriction and chemical control with glyphosate in integrated management of Urochloa brizantha L.Restricción de luz y control químico con glifosato en el manejo integrado de Urochloa brizantha L.Restrição luminosa e controle químico com glyphosate no manejo integrado de Urochloa brizantha L.Dose reductionEpicuticular waxHerbicideMorphoanatomyShading.Reducción de dosisHerbicidaMorfoanatomíaCera epicuticularSombreado.Redução de doseCera epicuticularHerbicidaMorfoanatomiaSombreamento.The objective was to evaluate the effect of different light conditions in the cultivation environment on the control of U. brizantha by glyphosate. The experimental design was in a plot scheme divided into randomized blocks with five replications. In the plots, environments with light conditions were allocated: full sun, intermittent shading with 3 hours of sun/day, and continuous shading. In the subplots, the herbicide doses: 0, 480, 960, and 1440 g. a. e. glyphosate ha-1 applied to U. brizantha plants. The control of U. brizantha by the herbicide glyphosate was more efficient in shaded environments, either with continuous or intermittent shading, in relation to full sun, indicating that the conditions of light influenced the action of the herbicide. At 35 DAA, control values of U. brizantha above 80% were observed from the 765 g. a. e ha-1 dose of glyphosate for treatments with shading. Already in conditions of full sun, 65% of control values were reached in the highest dose, which is considered unsatisfactory for the management of this species. U. brizantha submitted to light restriction had the content of epicuticular wax, starch, soluble and total sugar reduced; however, the leaf area was larger in these environments compared to full sun. The reserve content, epicuticular wax, and leaf area variables are affected by shading with a direct relationship with the greater control of U. brizantha by glyphosate in this cultivation condition.El objetivo fue evaluar el efecto del ambiente con diferentes intensidades de luz sobre el control de Urochloa brizantha por glifosato. Se utilizó un esquema de parcelas divididas en bloques al azar con cinco repeticiones. En las parcelas se asignaron ambientes con condiciones de luminosidad: pleno sol, sombreado intermitente con 3 horas de sol/día y sombreado continuo. En las subparcelas las dosis de herbicida fueron: 0, 480, 960 y 1440 g. y. un ha-1 de glifosato aplicado en plantas de U. brizantha. El control de U. brizantha por el herbicida glifosato fue más eficiente en ambientes sombreados, ya sea con sombreado continuo o intermitente, en relación a pleno sol, indicando que las condiciones de luminosidad influyeron en la acción del herbicida. A los 35 DDA se observaron valores control de U. brizantha superiores al 80% a partir de la dosis de 765 g. y. Los. ha-1 de glifosato para tratamientos de sombreado. En condiciones de pleno sol se alcanzaron valores del 65% de control a la dosis más alta, lo que se considera insatisfactorio para el manejo de esta especie. U. brizantha sometida a restricción de luz redujo el contenido de cera epicuticular, almidón, azúcar soluble y azúcar total, sin embargo, el área foliar fue mayor en estos ambientes en comparación con pleno sol. Las variables contenido de reserva, cera epicuticular y área foliar se ven afectadas por la sombra y esto influye directamente en el mayor control de U. brizantha por parte del glifosato.Objetivou-se avaliar o efeito do ambiente com distintas intensidades luminosas sobre o controle de Urochloa brizantha pelo glyphosate. Foi utilizado o esquema de parcelas subdivididas em blocos casualizados com cinco repetições. Nas parcelas foram alocados ambientes com condições de luminosidade: pleno sol, sombreamento intermitente com 3 horas de sol/dia e sombreamento contínuo. Já nas subparcelas as doses do herbicida: 0, 480, 960 e 1440 g. e. a ha-1 de glyphosate aplicadas sobre as plantas de U. brizantha. O controle de U. brizantha pelo herbicida glyphosate foi mais eficiente nos ambientes sombreados, seja com sombreamento contínuo ou intermitente, em relação ao pleno sol, indicando que as condições de luminosidade influenciaram na ação do herbicida. Observaram-se, aos 35 DAA, valores de controle de U. brizantha acima dos 80% a partir da dose 765 g. e. a. ha-1 de glyphosate para os tratamentos com sombreamento. Já em condições de pleno sol foram alcançados valores de 65% de controle na maior dose, o que é considerado insatisfatório para o manejo dessa espécie. U. brizantha submetida a restrição luminosa teve o teor de cera epicuticular, amido, açúcar solúvel e açúcar total reduzido, entretanto a área das folhas foi maior nesses ambientes em comparação ao pleno sol. As variáveis teor de reservas, cera epicuticular e área das folhas são afetadas pelo sombreamento e isso influencia diretamente no maior controle de U. brizantha pelo glyphosate.Research, Society and Development2022-12-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/3875810.33448/rsd-v11i17.38758Research, Society and Development; Vol. 11 No. 17; e177111738758Research, Society and Development; Vol. 11 Núm. 17; e177111738758Research, Society and Development; v. 11 n. 17; e1771117387582525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/38758/32183Copyright (c) 2022 Matheus Sales Nogueira e Silva; Leonardo David Tuffi Santos; Luan Mateus Silva Donato; Guilherme Augusto de Paiva Ferreira; Dandara Maria Clara do Rosario Barbosa; Rodrigo Eduardo Barros; Matheus Mendes Reishttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessSilva, Matheus Sales Nogueira e Santos, Leonardo David Tuffi Donato, Luan Mateus Silva Ferreira, Guilherme Augusto de Paiva Barbosa, Dandara Maria Clara do Rosario Barros, Rodrigo Eduardo Reis, Matheus Mendes 2022-12-28T13:53:48Zoai:ojs.pkp.sfu.ca:article/38758Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:52:20.791497Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv Luminous restriction and chemical control with glyphosate in integrated management of Urochloa brizantha L.
Restricción de luz y control químico con glifosato en el manejo integrado de Urochloa brizantha L.
Restrição luminosa e controle químico com glyphosate no manejo integrado de Urochloa brizantha L.
title Luminous restriction and chemical control with glyphosate in integrated management of Urochloa brizantha L.
spellingShingle Luminous restriction and chemical control with glyphosate in integrated management of Urochloa brizantha L.
Silva, Matheus Sales Nogueira e
Dose reduction
Epicuticular wax
Herbicide
Morphoanatomy
Shading.
Reducción de dosis
Herbicida
Morfoanatomía
Cera epicuticular
Sombreado.
Redução de dose
Cera epicuticular
Herbicida
Morfoanatomia
Sombreamento.
title_short Luminous restriction and chemical control with glyphosate in integrated management of Urochloa brizantha L.
title_full Luminous restriction and chemical control with glyphosate in integrated management of Urochloa brizantha L.
title_fullStr Luminous restriction and chemical control with glyphosate in integrated management of Urochloa brizantha L.
title_full_unstemmed Luminous restriction and chemical control with glyphosate in integrated management of Urochloa brizantha L.
title_sort Luminous restriction and chemical control with glyphosate in integrated management of Urochloa brizantha L.
author Silva, Matheus Sales Nogueira e
author_facet Silva, Matheus Sales Nogueira e
Santos, Leonardo David Tuffi
Donato, Luan Mateus Silva
Ferreira, Guilherme Augusto de Paiva
Barbosa, Dandara Maria Clara do Rosario
Barros, Rodrigo Eduardo
Reis, Matheus Mendes
author_role author
author2 Santos, Leonardo David Tuffi
Donato, Luan Mateus Silva
Ferreira, Guilherme Augusto de Paiva
Barbosa, Dandara Maria Clara do Rosario
Barros, Rodrigo Eduardo
Reis, Matheus Mendes
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Silva, Matheus Sales Nogueira e
Santos, Leonardo David Tuffi
Donato, Luan Mateus Silva
Ferreira, Guilherme Augusto de Paiva
Barbosa, Dandara Maria Clara do Rosario
Barros, Rodrigo Eduardo
Reis, Matheus Mendes
dc.subject.por.fl_str_mv Dose reduction
Epicuticular wax
Herbicide
Morphoanatomy
Shading.
Reducción de dosis
Herbicida
Morfoanatomía
Cera epicuticular
Sombreado.
Redução de dose
Cera epicuticular
Herbicida
Morfoanatomia
Sombreamento.
topic Dose reduction
Epicuticular wax
Herbicide
Morphoanatomy
Shading.
Reducción de dosis
Herbicida
Morfoanatomía
Cera epicuticular
Sombreado.
Redução de dose
Cera epicuticular
Herbicida
Morfoanatomia
Sombreamento.
description The objective was to evaluate the effect of different light conditions in the cultivation environment on the control of U. brizantha by glyphosate. The experimental design was in a plot scheme divided into randomized blocks with five replications. In the plots, environments with light conditions were allocated: full sun, intermittent shading with 3 hours of sun/day, and continuous shading. In the subplots, the herbicide doses: 0, 480, 960, and 1440 g. a. e. glyphosate ha-1 applied to U. brizantha plants. The control of U. brizantha by the herbicide glyphosate was more efficient in shaded environments, either with continuous or intermittent shading, in relation to full sun, indicating that the conditions of light influenced the action of the herbicide. At 35 DAA, control values of U. brizantha above 80% were observed from the 765 g. a. e ha-1 dose of glyphosate for treatments with shading. Already in conditions of full sun, 65% of control values were reached in the highest dose, which is considered unsatisfactory for the management of this species. U. brizantha submitted to light restriction had the content of epicuticular wax, starch, soluble and total sugar reduced; however, the leaf area was larger in these environments compared to full sun. The reserve content, epicuticular wax, and leaf area variables are affected by shading with a direct relationship with the greater control of U. brizantha by glyphosate in this cultivation condition.
publishDate 2022
dc.date.none.fl_str_mv 2022-12-24
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/38758
10.33448/rsd-v11i17.38758
url https://rsdjournal.org/index.php/rsd/article/view/38758
identifier_str_mv 10.33448/rsd-v11i17.38758
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/38758/32183
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Research, Society and Development
publisher.none.fl_str_mv Research, Society and Development
dc.source.none.fl_str_mv Research, Society and Development; Vol. 11 No. 17; e177111738758
Research, Society and Development; Vol. 11 Núm. 17; e177111738758
Research, Society and Development; v. 11 n. 17; e177111738758
2525-3409
reponame:Research, Society and Development
instname:Universidade Federal de Itajubá (UNIFEI)
instacron:UNIFEI
instname_str Universidade Federal de Itajubá (UNIFEI)
instacron_str UNIFEI
institution UNIFEI
reponame_str Research, Society and Development
collection Research, Society and Development
repository.name.fl_str_mv Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)
repository.mail.fl_str_mv rsd.articles@gmail.com
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