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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/54112
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dc.creatorGustavo Amaral Costapt_BR
dc.creatorLeonardo David Tuffi Santospt_BR
dc.creatorSamuel Alves dos Santospt_BR
dc.creatorLeandro Roberto da Cruzpt_BR
dc.creatorBruno Francisco Sant' Anna-Santospt_BR
dc.creatorIzabela Thais Santospt_BR
dc.creatorFrancisco André Ossamu Tanakapt_BR
dc.date.accessioned2023-05-29T20:11:08Z-
dc.date.available2023-05-29T20:11:08Z-
dc.date.issued2020-
dc.citation.volume131pt_BR
dc.citation.spage302pt_BR
dc.citation.epage309pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.sajb.2020.02.028pt_BR
dc.identifier.issn0254-6299pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/54112-
dc.description.resumoVariation in environmental conditions, such as light availability, can affect herbicide efficacy by altering leaf morphoanatomy. Accordingly, the aim of the present study was to evaluate the influence of light level and herbicide application on leaf anatomy and herbicide efficacy, using Macroptilium atropurpureum as a model weed species. The experiment involved a factorial design (3 £ 4), using three light levels (0, 50, or 70% shadow) and four herbicide treatments (no herbicide, glyphosate, carfentrazone-ethyl, or a combination of glyphosate and carfentrazone-ethyl). When combined, the herbicides were efficient in controlling M. atropurpureum under all light levels. However, when applied independently, the herbicides failed to satisfactorily control plants cultivated in full sunlight, and plants cultivated in shaded environments were more sensitive to glyphosate application than those cultivated in full sunlight. The greater efficacy of the herbicides on plants grown under shaded conditions can likely be attributed to changes in leaf morphoanatomy. Plants grown under restricted light conditions exhibit greater average leaf area, lower trichome density, reduced epicuticular wax deposition, thinner leaves, and lower dry mass accumulation, characteristics which are closely correlated to chemical control. The combination of the herbicides presents an additional effect in the control of M. atropurpureum. Also, changes in leaf anatomy caused by light restriction reduce the tolerance of M. atropurpureum to the herbicides.pt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIASpt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofSouth African Journal of Botany-
dc.rightsAcesso Abertopt_BR
dc.subjectLeaf anatomypt_BR
dc.subjectScanning electron microscopypt_BR
dc.subjectEpicuticular waxpt_BR
dc.subjectHerbicide mixturept_BR
dc.subjectLight restrictionpt_BR
dc.subject.otherFolhas - Anatomiapt_BR
dc.subject.otherMicroscopia eletronica de varredurapt_BR
dc.subject.otherHerbicidaspt_BR
dc.subject.otherErva daninhapt_BR
dc.titleEfficiency of glyphosate and carfentrazone-ethyl in the control of Macroptilium atropurpureum (DC.) Urb. under different light intensitiespt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/pii/S0254629919302650pt_BR
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