MANEJO PARA DESINFESTAÇÃO DE CAPIM-AMARGOSO (Digitaria insularis) EM MILHO SAFRINHA COM USO DE HERBICIDAS PRÉ-EMERGENTES

Detalhes bibliográficos
Autor(a) principal: LARA, Charles Almeida
Data de Publicação: 2019
Outros Autores: MOLONHI, Priscila da Silva
Tipo de documento: Trabalho de conclusão de curso
Idioma: por
Título da fonte: Repositório Digital Unicesumar
Texto Completo: http://rdu.unicesumar.edu.br/handle/123456789/4631
Resumo: Sourgrass (Digitaria insularis) is a highly aggressive perennial plant that has the ability to emerge and develop throughout the year. The existence of glyfosate resistant biotypes make it difficult to manage and control this species in the crop and safrinha maize (Zea mays) due to its physiology and limitation of chemical control based on ACCase (Acetyl CoA carboxylase) inhibitors in post-emergence of the culture. The present work was conducted in a commercial production area under resistant and perennial natural infestation conditions. The experimental design was randomized blocks with four replications. Pre and post-emergent herbicides of recognized agronomic efficiency in difficult-to-control corn crop plants (Atrazine, Glyphosate, S-Metolachlor and Trifluralin) were applied shortly after conventional tillage due to the size and rooting of bitter grass. The symptoms of intoxication and the control efficacy from the natural seed bank of the area were evaluated. The herbicides S-Metolachlor, Trifluralina in pre-emergence applied did not differ from each other presenting excellent control for sourgrass. The herbicide S-Metolachlor, despite recognized graminicide action, not recommended for the control of sourgrass in corn crop.
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spelling MANEJO PARA DESINFESTAÇÃO DE CAPIM-AMARGOSO (Digitaria insularis) EM MILHO SAFRINHA COM USO DE HERBICIDAS PRÉ-EMERGENTESControle químicoPlanta daninhaResistênciaSourgrass (Digitaria insularis) is a highly aggressive perennial plant that has the ability to emerge and develop throughout the year. The existence of glyfosate resistant biotypes make it difficult to manage and control this species in the crop and safrinha maize (Zea mays) due to its physiology and limitation of chemical control based on ACCase (Acetyl CoA carboxylase) inhibitors in post-emergence of the culture. The present work was conducted in a commercial production area under resistant and perennial natural infestation conditions. The experimental design was randomized blocks with four replications. Pre and post-emergent herbicides of recognized agronomic efficiency in difficult-to-control corn crop plants (Atrazine, Glyphosate, S-Metolachlor and Trifluralin) were applied shortly after conventional tillage due to the size and rooting of bitter grass. The symptoms of intoxication and the control efficacy from the natural seed bank of the area were evaluated. The herbicides S-Metolachlor, Trifluralina in pre-emergence applied did not differ from each other presenting excellent control for sourgrass. The herbicide S-Metolachlor, despite recognized graminicide action, not recommended for the control of sourgrass in corn crop.O capim amargoso (Digitaria insularis) é uma planta perene de alta agressividade, tem capacidade de emergir e se desenvolver durante o ano todo. A existência de biótipos resistentes ao glyfosate dificultam o manejo e controle dessa espécie no cultivo de milho (Zea mays) safra e safrinha devido a sua fisiologia e limitação de controle químico a base de inibidores de ACCase (enzima Acetil CoA carboxilase) em pós-emergência da cultura. O presente trabalho foi conduzido em área de produção comercial em condições de infestação natural resistente e perenizada. O delineamento experimental foi o de blocos casualizados com quatro repetições. Herbicidas pré e pós-emergentes de reconhecida eficiência agronômica em plantas de difícil controle na cultura do milho, Atrazine, Glyphosate, S-Metolacloro e Trifluralina foram aplicados logo após o preparo do solo para cultivo convencional devido ao porte e enraizamento do capim amargoso. Foram avaliados os sintomas de intoxicação e a eficácia de controle proveniente de banco de semente natural da área. Os herbicidas S-Metolacloro, Trifluralina, aplicados em pré-emergência não se diferenciaram entre si apresentando ótimo controle para capim amargoso. O herbicida S-Metolacloro, apesar de reconhecida ação graminicida, não é recomendado para o controle do capim amargoso na cultura do milho.UNIVERSIDADE CESUMARBrasilUNICESUMARZULIANI, Aline Maria Orbolato GonçalvesLARA, Charles AlmeidaMOLONHI, Priscila da Silva2020-01-27T12:22:06Z2020-01-27T12:22:06Z2019-12-06info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bachelorThesisapplication/pdfhttp://rdu.unicesumar.edu.br/handle/123456789/4631porinfo:eu-repo/semantics/openAccessreponame:Repositório Digital Unicesumarinstname:Centro Universitário de Maringá (UNICESUMAR)instacron:UniCesumar2021-06-25T17:39:02ZRepositório InstitucionalPRI
dc.title.none.fl_str_mv MANEJO PARA DESINFESTAÇÃO DE CAPIM-AMARGOSO (Digitaria insularis) EM MILHO SAFRINHA COM USO DE HERBICIDAS PRÉ-EMERGENTES
title MANEJO PARA DESINFESTAÇÃO DE CAPIM-AMARGOSO (Digitaria insularis) EM MILHO SAFRINHA COM USO DE HERBICIDAS PRÉ-EMERGENTES
spellingShingle MANEJO PARA DESINFESTAÇÃO DE CAPIM-AMARGOSO (Digitaria insularis) EM MILHO SAFRINHA COM USO DE HERBICIDAS PRÉ-EMERGENTES
LARA, Charles Almeida
Controle químico
Planta daninha
Resistência
title_short MANEJO PARA DESINFESTAÇÃO DE CAPIM-AMARGOSO (Digitaria insularis) EM MILHO SAFRINHA COM USO DE HERBICIDAS PRÉ-EMERGENTES
title_full MANEJO PARA DESINFESTAÇÃO DE CAPIM-AMARGOSO (Digitaria insularis) EM MILHO SAFRINHA COM USO DE HERBICIDAS PRÉ-EMERGENTES
title_fullStr MANEJO PARA DESINFESTAÇÃO DE CAPIM-AMARGOSO (Digitaria insularis) EM MILHO SAFRINHA COM USO DE HERBICIDAS PRÉ-EMERGENTES
title_full_unstemmed MANEJO PARA DESINFESTAÇÃO DE CAPIM-AMARGOSO (Digitaria insularis) EM MILHO SAFRINHA COM USO DE HERBICIDAS PRÉ-EMERGENTES
title_sort MANEJO PARA DESINFESTAÇÃO DE CAPIM-AMARGOSO (Digitaria insularis) EM MILHO SAFRINHA COM USO DE HERBICIDAS PRÉ-EMERGENTES
author LARA, Charles Almeida
author_facet LARA, Charles Almeida
MOLONHI, Priscila da Silva
author_role author
author2 MOLONHI, Priscila da Silva
author2_role author
dc.contributor.none.fl_str_mv ZULIANI, Aline Maria Orbolato Gonçalves
dc.contributor.author.fl_str_mv LARA, Charles Almeida
MOLONHI, Priscila da Silva
dc.subject.por.fl_str_mv Controle químico
Planta daninha
Resistência
topic Controle químico
Planta daninha
Resistência
description Sourgrass (Digitaria insularis) is a highly aggressive perennial plant that has the ability to emerge and develop throughout the year. The existence of glyfosate resistant biotypes make it difficult to manage and control this species in the crop and safrinha maize (Zea mays) due to its physiology and limitation of chemical control based on ACCase (Acetyl CoA carboxylase) inhibitors in post-emergence of the culture. The present work was conducted in a commercial production area under resistant and perennial natural infestation conditions. The experimental design was randomized blocks with four replications. Pre and post-emergent herbicides of recognized agronomic efficiency in difficult-to-control corn crop plants (Atrazine, Glyphosate, S-Metolachlor and Trifluralin) were applied shortly after conventional tillage due to the size and rooting of bitter grass. The symptoms of intoxication and the control efficacy from the natural seed bank of the area were evaluated. The herbicides S-Metolachlor, Trifluralina in pre-emergence applied did not differ from each other presenting excellent control for sourgrass. The herbicide S-Metolachlor, despite recognized graminicide action, not recommended for the control of sourgrass in corn crop.
publishDate 2019
dc.date.none.fl_str_mv 2019-12-06
2020-01-27T12:22:06Z
2020-01-27T12:22:06Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/bachelorThesis
format bachelorThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://rdu.unicesumar.edu.br/handle/123456789/4631
url http://rdu.unicesumar.edu.br/handle/123456789/4631
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UNIVERSIDADE CESUMAR
Brasil
UNICESUMAR
publisher.none.fl_str_mv UNIVERSIDADE CESUMAR
Brasil
UNICESUMAR
dc.source.none.fl_str_mv reponame:Repositório Digital Unicesumar
instname:Centro Universitário de Maringá (UNICESUMAR)
instacron:UniCesumar
instname_str Centro Universitário de Maringá (UNICESUMAR)
instacron_str UniCesumar
institution UniCesumar
reponame_str Repositório Digital Unicesumar
collection Repositório Digital Unicesumar
repository.name.fl_str_mv
repository.mail.fl_str_mv
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