Seletividade do herbicida tembotrione em genótipos de cana-de-açúcar no sistema de mudas pré-brotadas
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/49127 |
Resumo: | The application of herbicides in post-planting of pre-sprouted sugarcane seedlings stands out in the control of weeds in the crop, with effectiveness in eradicating them in a short period. However, phytotoxicity effects to herbicides may occur, depending on the variety of sugarcane, time of application and doses of the products. Thus, there is a need for research aimed at identifying new active ingredients that are efficient in controlling weeds and that present selectivity for the cultivation of sugarcane.The objective of this study was to evaluate the selectivity of the herbicide tembotrione over genotypes of sugar cane in doses and times of application in the pre-sprouted seedling system. The experiment was divided into two stages: In the first stage, the effect of doses of the herbicide tembotrione + mineral oil (0; 50.4; 75.6; 100.8; and 126 g ia ha-1+ 108 g ia ha-1, respectively), on application times; 0, 20 and 40 days after transplanting. In the second stage, the application of 75.6 g ia ha-1of theherbicide tembotrione + 108 g ia ha-1of mineral oil was evaluated on four sugarcane genotypes: RB966928, RB855156, RB93509 and IACSP95-5000. During the conduction of the two stages, phytotoxicity assessments were carried out at 7, 14, 21 and 28 days after application and at the end the number of tillers, shoot fresh matter and shoot dry matter was determined. It was found that the herbicide tembotrione, when applied in smaller doses and in initial periods of the culture in post-emergence, presents selectivity for the varieties RB867515, RB966928, RB855156, and RB93509, however, it provides decrease in the accumulation of shoot dry mass on the IACSP95-5000 variety. |
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Seletividade do herbicida tembotrione em genótipos de cana-de-açúcar no sistema de mudas pré-brotadasSelectivity of the herbicide tembotrionein sugarcane genotypes in the pre-sprouted sugarcane seedlingsFitotoxicidadeHerbicidas pós emergentesSaccharum spp.PhytotoxicityPost-emergent herbicidesThe application of herbicides in post-planting of pre-sprouted sugarcane seedlings stands out in the control of weeds in the crop, with effectiveness in eradicating them in a short period. However, phytotoxicity effects to herbicides may occur, depending on the variety of sugarcane, time of application and doses of the products. Thus, there is a need for research aimed at identifying new active ingredients that are efficient in controlling weeds and that present selectivity for the cultivation of sugarcane.The objective of this study was to evaluate the selectivity of the herbicide tembotrione over genotypes of sugar cane in doses and times of application in the pre-sprouted seedling system. The experiment was divided into two stages: In the first stage, the effect of doses of the herbicide tembotrione + mineral oil (0; 50.4; 75.6; 100.8; and 126 g ia ha-1+ 108 g ia ha-1, respectively), on application times; 0, 20 and 40 days after transplanting. In the second stage, the application of 75.6 g ia ha-1of theherbicide tembotrione + 108 g ia ha-1of mineral oil was evaluated on four sugarcane genotypes: RB966928, RB855156, RB93509 and IACSP95-5000. During the conduction of the two stages, phytotoxicity assessments were carried out at 7, 14, 21 and 28 days after application and at the end the number of tillers, shoot fresh matter and shoot dry matter was determined. It was found that the herbicide tembotrione, when applied in smaller doses and in initial periods of the culture in post-emergence, presents selectivity for the varieties RB867515, RB966928, RB855156, and RB93509, however, it provides decrease in the accumulation of shoot dry mass on the IACSP95-5000 variety.A aplicação de herbicidas em pós-plantio das mudas pré-brotadas de cana-de-açúcar se destaca no controle de plantas daninhas na cultura, com eficácia na erradicação dessas em curto período. Contudo, efeitos de fitotoxicidade aos herbicidas podem ocorrer, a depender da variedade de cana-de-açúcar, época de aplicação e doses dos produtos. Assim, há a necessidade de pesquisas visando identificar novos ingredientes ativos eficientes no controle de plantas daninhas e que apresentem seletividade para a cultura da cana-de-açúcar. Objetivou-se, com o presente trabalho, avaliar a seletividade do herbicida tembotrione sobre genótipos de cana-de-açúcar em doses e épocas de aplicação no sistema de mudas pré-brotadas. O experimento foi dividido em duas etapas: Na primeira etapa, avaliou-se o efeito de doses do herbicida tembotrione + óleo mineral (0; 50,4; 75,6; 100,8; e 126 g i.a. ha-1+ 108 g i.a. ha-1, respectivamente), sobre épocas de aplicação; 0, 20 e 40 dias após o transplantio. Na segunda etapa, avaliou-se a aplicação de 75,6 g i.a. ha-1 do herbicida tembotrione + 108 g i.a. ha-1 de óleo mineral, sobre quatro genótipos de cana-de-açúcar: RB966928, RB855156, RB93509 e IACSP95-5000. Durante a condução das duas etapas, foram realizadas avaliações de fitotoxicidade aos 7, 14, 21 e 28 dias após aplicação e ao final determinou-se o número de perfilhos, massa fresca e massa seca da parte aérea. Verificou-se que o herbicida tembotrione, quando aplicado em doses menores e em períodos iniciais da cultura em pós-emergência, apresenta seletividade para as variedades RB867515, RB966928, RB855156, e RB93509, contudo, proporciona decréscimo no acúmulo de massa seca da parte aérea sobre a variedade IACSP95-5000.Universidade Federal da Grande Dourados (UFGD)2022-02-01T23:17:27Z2022-02-01T23:17:27Z2021-07-21info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfPIMENTEL, G. V. et al. Seletividade do herbicida tembotrione em genótipos de cana-de-açúcar no sistema de mudas pré-brotadas. Agrarian, Dourados, v. 14, n. 52, p. 166-175, 2021. DOI: 10.30612/agrarian.v14i52.11344.http://repositorio.ufla.br/jspui/handle/1/49127Agrarianreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-NonCommercial-ShareAlike 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-sa/4.0/info:eu-repo/semantics/openAccessPimentel, Guilherme VieiraCosta, Wendel Marlon NascimentoSouza, Willian José Gomes deMartins, Inara AlvesMoreira, Silvino Guimarãespor2022-02-01T23:17:27Zoai:localhost:1/49127Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2022-02-01T23:17:27Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Seletividade do herbicida tembotrione em genótipos de cana-de-açúcar no sistema de mudas pré-brotadas Selectivity of the herbicide tembotrionein sugarcane genotypes in the pre-sprouted sugarcane seedlings |
title |
Seletividade do herbicida tembotrione em genótipos de cana-de-açúcar no sistema de mudas pré-brotadas |
spellingShingle |
Seletividade do herbicida tembotrione em genótipos de cana-de-açúcar no sistema de mudas pré-brotadas Pimentel, Guilherme Vieira Fitotoxicidade Herbicidas pós emergentes Saccharum spp. Phytotoxicity Post-emergent herbicides |
title_short |
Seletividade do herbicida tembotrione em genótipos de cana-de-açúcar no sistema de mudas pré-brotadas |
title_full |
Seletividade do herbicida tembotrione em genótipos de cana-de-açúcar no sistema de mudas pré-brotadas |
title_fullStr |
Seletividade do herbicida tembotrione em genótipos de cana-de-açúcar no sistema de mudas pré-brotadas |
title_full_unstemmed |
Seletividade do herbicida tembotrione em genótipos de cana-de-açúcar no sistema de mudas pré-brotadas |
title_sort |
Seletividade do herbicida tembotrione em genótipos de cana-de-açúcar no sistema de mudas pré-brotadas |
author |
Pimentel, Guilherme Vieira |
author_facet |
Pimentel, Guilherme Vieira Costa, Wendel Marlon Nascimento Souza, Willian José Gomes de Martins, Inara Alves Moreira, Silvino Guimarães |
author_role |
author |
author2 |
Costa, Wendel Marlon Nascimento Souza, Willian José Gomes de Martins, Inara Alves Moreira, Silvino Guimarães |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Pimentel, Guilherme Vieira Costa, Wendel Marlon Nascimento Souza, Willian José Gomes de Martins, Inara Alves Moreira, Silvino Guimarães |
dc.subject.por.fl_str_mv |
Fitotoxicidade Herbicidas pós emergentes Saccharum spp. Phytotoxicity Post-emergent herbicides |
topic |
Fitotoxicidade Herbicidas pós emergentes Saccharum spp. Phytotoxicity Post-emergent herbicides |
description |
The application of herbicides in post-planting of pre-sprouted sugarcane seedlings stands out in the control of weeds in the crop, with effectiveness in eradicating them in a short period. However, phytotoxicity effects to herbicides may occur, depending on the variety of sugarcane, time of application and doses of the products. Thus, there is a need for research aimed at identifying new active ingredients that are efficient in controlling weeds and that present selectivity for the cultivation of sugarcane.The objective of this study was to evaluate the selectivity of the herbicide tembotrione over genotypes of sugar cane in doses and times of application in the pre-sprouted seedling system. The experiment was divided into two stages: In the first stage, the effect of doses of the herbicide tembotrione + mineral oil (0; 50.4; 75.6; 100.8; and 126 g ia ha-1+ 108 g ia ha-1, respectively), on application times; 0, 20 and 40 days after transplanting. In the second stage, the application of 75.6 g ia ha-1of theherbicide tembotrione + 108 g ia ha-1of mineral oil was evaluated on four sugarcane genotypes: RB966928, RB855156, RB93509 and IACSP95-5000. During the conduction of the two stages, phytotoxicity assessments were carried out at 7, 14, 21 and 28 days after application and at the end the number of tillers, shoot fresh matter and shoot dry matter was determined. It was found that the herbicide tembotrione, when applied in smaller doses and in initial periods of the culture in post-emergence, presents selectivity for the varieties RB867515, RB966928, RB855156, and RB93509, however, it provides decrease in the accumulation of shoot dry mass on the IACSP95-5000 variety. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-07-21 2022-02-01T23:17:27Z 2022-02-01T23:17:27Z |
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 |
PIMENTEL, G. V. et al. Seletividade do herbicida tembotrione em genótipos de cana-de-açúcar no sistema de mudas pré-brotadas. Agrarian, Dourados, v. 14, n. 52, p. 166-175, 2021. DOI: 10.30612/agrarian.v14i52.11344. http://repositorio.ufla.br/jspui/handle/1/49127 |
identifier_str_mv |
PIMENTEL, G. V. et al. Seletividade do herbicida tembotrione em genótipos de cana-de-açúcar no sistema de mudas pré-brotadas. Agrarian, Dourados, v. 14, n. 52, p. 166-175, 2021. DOI: 10.30612/agrarian.v14i52.11344. |
url |
http://repositorio.ufla.br/jspui/handle/1/49127 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-ShareAlike 4.0 International http://creativecommons.org/licenses/by-nc-sa/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-ShareAlike 4.0 International http://creativecommons.org/licenses/by-nc-sa/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal da Grande Dourados (UFGD) |
publisher.none.fl_str_mv |
Universidade Federal da Grande Dourados (UFGD) |
dc.source.none.fl_str_mv |
Agrarian reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1784549985278230528 |