Can light intensity influence the tolerance of Synedrellopsis grisebachii to glyphosate?

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dc.contributor.authorSantos, Jucileia I. [UNESP]
dc.contributor.authorAmaral, Carita L. [UNESP]
dc.contributor.authorAlves, Pedro Luis C. A. [UNESP]
dc.contributor.authorGasparino, Eduardo C. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-11-26T16:32:31Z
dc.date.available2018-11-26T16:32:31Z
dc.date.issued2016-03-01
dc.description.abstractPlant susceptibility to herbicides is related to several factors, including the environmental conditions under which the plants develop. Two experiments were carried out using Synedrellopsis grisebachii plants in two different developmental stages (vegetative and reproductive), with the goal of studying plant susceptibility to the herbicide, glyphosate, and the dependence of this susceptibility on light intensity (full sunlight and 70% shading), correlated with leaf anatomy. The experimental design for both experiments was completely randomized, with a 2 x 7 factorial scheme, with two light intensities and seven different doses of glyphosate (0D, 1/4D, 1/2D, D, 2D, 4D and 6D, where D is the recommended dose of 1800gaeha(-1)) as the factors and four replicates per treatment. The leaf anatomy was characterized with optical and scanning electron microscopy. The plants that were grown in full sunlight were more tolerant of glyphosate because of thickening of the adaxial epidermis, parenchyma and main vein structures, which required higher glyphosate doses for effective weed control. The plants that were in the reproductive stage were more tolerant of glyphosate, probably because of lower glyphosate absorption and translocation to the reproductive organs.en
dc.description.affiliationJulio de Mesquita Filho State Univ Sao Paulo, Dept Appl Biol Agr, Jaboticabal, Brazil
dc.description.affiliationUnespJulio de Mesquita Filho State Univ Sao Paulo, Dept Appl Biol Agr, Jaboticabal, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipNational Council for Scientific and Technological Development in Brazil
dc.format.extent3-15
dc.identifierhttp://dx.doi.org/10.1111/wbm.12085
dc.identifier.citationWeed Biology And Management. Hoboken: Wiley-blackwell, v. 16, n. 1, p. 3-15, 2016.
dc.identifier.doi10.1111/wbm.12085
dc.identifier.issn1444-6162
dc.identifier.urihttp://hdl.handle.net/11449/161381
dc.identifier.wosWOS:000373609200001
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofWeed Biology And Management
dc.relation.ispartofsjr0,512
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectchemical control
dc.subjectdevelopmental stage
dc.subjectleaf anatomy
dc.subjectlight intensity
dc.titleCan light intensity influence the tolerance of Synedrellopsis grisebachii to glyphosate?en
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-Blackwell
unesp.author.lattes1471049145981073[4]
unesp.author.orcid0000-0001-6078-7341[4]

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