MANAGEMENT OF Commelina benghalensis WITH SAFLUFENACIL IN SHADED ENVIRONMENTS

Detalhes bibliográficos
Autor(a) principal: Santos Junior, A.
Data de Publicação: 2019
Outros Autores: Freitas, F. C. L., Santos, I. T. [UNESP], Silva, D. C., Paixao, G. P., Sediyama, C. S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S0100-83582019370100051
http://hdl.handle.net/11449/184537
Resumo: The repetitive use of glyphosate in the control of weeds in eucalyptus plantations has selected tolerant species such as Commelina benghalensis. Therefore, the use of herbicides of other mechanisms of action, such as saflufenacil, in rotation or combination with glyphosate, is necessary to reduce damages caused by C. benghalensis, whose sensitivity to herbicides can be influenced by the shading caused by the eucalyptus crop. This study aimed to assess the efficiency of saflufenacil in the management of C. benghalensis at different shading levels. Three experiments were carried out regarding a certain shading level (cultivation environment with 0, 40, and 55% shade). The experimental design was a randomized block design with five herbicide doses (0, 24.5, 49, 73.5, and 98 g ha(-1) of saflufenacil) and four replications. At 28 days after herbicide application, the percentage of control and shoot dry matter were assessed, as well as the biomass allocation to leaves, stems, and roots of C. benghalensis. Plants cultivated at 0% shade presented a higher dry matter accumulation and a better distribution of biomass in leaves, stem, and roots, contributing with the increased tolerance to saflufenacil and not being controlled with effectiveness under the assessed doses. As shading was increased, plants of C. benghalensis allocated most of their biomass to the shoot, especially leaves, reducing their reserve structures and increasing the contact area with the herbicide, making them more susceptible to saflufenacil.
id UNSP_6a8a2eed8d0df3d6da587feeb3d86002
oai_identifier_str oai:repositorio.unesp.br:11449/184537
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling MANAGEMENT OF Commelina benghalensis WITH SAFLUFENACIL IN SHADED ENVIRONMENTSshadingchemical controlbiomass allocationweedBenghal dayflowerThe repetitive use of glyphosate in the control of weeds in eucalyptus plantations has selected tolerant species such as Commelina benghalensis. Therefore, the use of herbicides of other mechanisms of action, such as saflufenacil, in rotation or combination with glyphosate, is necessary to reduce damages caused by C. benghalensis, whose sensitivity to herbicides can be influenced by the shading caused by the eucalyptus crop. This study aimed to assess the efficiency of saflufenacil in the management of C. benghalensis at different shading levels. Three experiments were carried out regarding a certain shading level (cultivation environment with 0, 40, and 55% shade). The experimental design was a randomized block design with five herbicide doses (0, 24.5, 49, 73.5, and 98 g ha(-1) of saflufenacil) and four replications. At 28 days after herbicide application, the percentage of control and shoot dry matter were assessed, as well as the biomass allocation to leaves, stems, and roots of C. benghalensis. Plants cultivated at 0% shade presented a higher dry matter accumulation and a better distribution of biomass in leaves, stem, and roots, contributing with the increased tolerance to saflufenacil and not being controlled with effectiveness under the assessed doses. As shading was increased, plants of C. benghalensis allocated most of their biomass to the shoot, especially leaves, reducing their reserve structures and increasing the contact area with the herbicide, making them more susceptible to saflufenacil.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Estado Minas Gerais, Ituiutaba, MG, BrazilUniv Fed Vicosa, Vicosa, MG, BrazilUniv Estadual Paulista, Jaboticabal, SP, BrazilUniv Estadual Paulista, Jaboticabal, SP, BrazilUniv Federal VicosaUniv Estado Minas GeraisUniversidade Federal de Viçosa (UFV)Universidade Estadual Paulista (Unesp)Santos Junior, A.Freitas, F. C. L.Santos, I. T. [UNESP]Silva, D. C.Paixao, G. P.Sediyama, C. S.2019-10-04T12:14:30Z2019-10-04T12:14:30Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article8application/pdfhttp://dx.doi.org/10.1590/S0100-83582019370100051Planta Daninha. Vicosa: Univ Federal Vicosa, v. 37, 8 p., 2019.0100-8358http://hdl.handle.net/11449/18453710.1590/S0100-83582019370100051S0100-83582019000100249WOS:000472173400001S0100-83582019000100249.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPlanta Daninhainfo:eu-repo/semantics/openAccess2023-10-07T06:06:30Zoai:repositorio.unesp.br:11449/184537Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:15:46.917259Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv MANAGEMENT OF Commelina benghalensis WITH SAFLUFENACIL IN SHADED ENVIRONMENTS
title MANAGEMENT OF Commelina benghalensis WITH SAFLUFENACIL IN SHADED ENVIRONMENTS
spellingShingle MANAGEMENT OF Commelina benghalensis WITH SAFLUFENACIL IN SHADED ENVIRONMENTS
Santos Junior, A.
shading
chemical control
biomass allocation
weed
Benghal dayflower
title_short MANAGEMENT OF Commelina benghalensis WITH SAFLUFENACIL IN SHADED ENVIRONMENTS
title_full MANAGEMENT OF Commelina benghalensis WITH SAFLUFENACIL IN SHADED ENVIRONMENTS
title_fullStr MANAGEMENT OF Commelina benghalensis WITH SAFLUFENACIL IN SHADED ENVIRONMENTS
title_full_unstemmed MANAGEMENT OF Commelina benghalensis WITH SAFLUFENACIL IN SHADED ENVIRONMENTS
title_sort MANAGEMENT OF Commelina benghalensis WITH SAFLUFENACIL IN SHADED ENVIRONMENTS
author Santos Junior, A.
author_facet Santos Junior, A.
Freitas, F. C. L.
Santos, I. T. [UNESP]
Silva, D. C.
Paixao, G. P.
Sediyama, C. S.
author_role author
author2 Freitas, F. C. L.
Santos, I. T. [UNESP]
Silva, D. C.
Paixao, G. P.
Sediyama, C. S.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Univ Estado Minas Gerais
Universidade Federal de Viçosa (UFV)
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Santos Junior, A.
Freitas, F. C. L.
Santos, I. T. [UNESP]
Silva, D. C.
Paixao, G. P.
Sediyama, C. S.
dc.subject.por.fl_str_mv shading
chemical control
biomass allocation
weed
Benghal dayflower
topic shading
chemical control
biomass allocation
weed
Benghal dayflower
description The repetitive use of glyphosate in the control of weeds in eucalyptus plantations has selected tolerant species such as Commelina benghalensis. Therefore, the use of herbicides of other mechanisms of action, such as saflufenacil, in rotation or combination with glyphosate, is necessary to reduce damages caused by C. benghalensis, whose sensitivity to herbicides can be influenced by the shading caused by the eucalyptus crop. This study aimed to assess the efficiency of saflufenacil in the management of C. benghalensis at different shading levels. Three experiments were carried out regarding a certain shading level (cultivation environment with 0, 40, and 55% shade). The experimental design was a randomized block design with five herbicide doses (0, 24.5, 49, 73.5, and 98 g ha(-1) of saflufenacil) and four replications. At 28 days after herbicide application, the percentage of control and shoot dry matter were assessed, as well as the biomass allocation to leaves, stems, and roots of C. benghalensis. Plants cultivated at 0% shade presented a higher dry matter accumulation and a better distribution of biomass in leaves, stem, and roots, contributing with the increased tolerance to saflufenacil and not being controlled with effectiveness under the assessed doses. As shading was increased, plants of C. benghalensis allocated most of their biomass to the shoot, especially leaves, reducing their reserve structures and increasing the contact area with the herbicide, making them more susceptible to saflufenacil.
publishDate 2019
dc.date.none.fl_str_mv 2019-10-04T12:14:30Z
2019-10-04T12:14:30Z
2019-01-01
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/10.1590/S0100-83582019370100051
Planta Daninha. Vicosa: Univ Federal Vicosa, v. 37, 8 p., 2019.
0100-8358
http://hdl.handle.net/11449/184537
10.1590/S0100-83582019370100051
S0100-83582019000100249
WOS:000472173400001
S0100-83582019000100249.pdf
url http://dx.doi.org/10.1590/S0100-83582019370100051
http://hdl.handle.net/11449/184537
identifier_str_mv Planta Daninha. Vicosa: Univ Federal Vicosa, v. 37, 8 p., 2019.
0100-8358
10.1590/S0100-83582019370100051
S0100-83582019000100249
WOS:000472173400001
S0100-83582019000100249.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Planta Daninha
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 8
application/pdf
dc.publisher.none.fl_str_mv Univ Federal Vicosa
publisher.none.fl_str_mv Univ Federal Vicosa
dc.source.none.fl_str_mv Web of Science
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
_version_ 1808128337353113600