MANAGEMENT OF Commelina benghalensis WITH SAFLUFENACIL IN SHADED ENVIRONMENTS

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dc.contributor.authorSantos Junior, A.
dc.contributor.authorFreitas, F. C. L.
dc.contributor.authorSantos, I. T. [UNESP]
dc.contributor.authorSilva, D. C.
dc.contributor.authorPaixao, G. P.
dc.contributor.authorSediyama, C. S.
dc.contributor.institutionUniv Estado Minas Gerais
dc.contributor.institutionUniversidade Federal de Viçosa (UFV)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2019-10-04T12:14:30Z
dc.date.available2019-10-04T12:14:30Z
dc.date.issued2019-01-01
dc.description.abstractThe 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.en
dc.description.affiliationUniv Estado Minas Gerais, Ituiutaba, MG, Brazil
dc.description.affiliationUniv Fed Vicosa, Vicosa, MG, Brazil
dc.description.affiliationUniv Estadual Paulista, Jaboticabal, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Jaboticabal, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent8
dc.identifierhttp://dx.doi.org/10.1590/S0100-83582019370100051
dc.identifier.citationPlanta Daninha. Vicosa: Univ Federal Vicosa, v. 37, 8 p., 2019.
dc.identifier.doi10.1590/S0100-83582019370100051
dc.identifier.fileS0100-83582019000100249.pdf
dc.identifier.issn0100-8358
dc.identifier.scieloS0100-83582019000100249
dc.identifier.urihttp://hdl.handle.net/11449/184537
dc.identifier.wosWOS:000472173400001
dc.language.isoeng
dc.publisherUniv Federal Vicosa
dc.relation.ispartofPlanta Daninha
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectshading
dc.subjectchemical control
dc.subjectbiomass allocation
dc.subjectweed
dc.subjectBenghal dayflower
dc.titleMANAGEMENT OF Commelina benghalensis WITH SAFLUFENACIL IN SHADED ENVIRONMENTSen
dc.typeArtigo
dcterms.rightsHolderUniv Federal Vicosa

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