Luminous restriction and chemical control with glyphosate in integrated management of Urochloa brizantha L.
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , |
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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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 |
_version_ |
1797052801182859264 |