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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/54140
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dc.creatorLuan Mateus Silva Donatopt_BR
dc.creatorGuilherme Augusto de Paiva Ferreirapt_BR
dc.creatorLeonardo David Tuffi Santospt_BR
dc.creatorMatheus Mendes Reispt_BR
dc.creatorRodrigo Eduardo Barrospt_BR
dc.creatorWilliam Gomes Montespt_BR
dc.date.accessioned2023-05-29T20:51:52Z-
dc.date.available2023-05-29T20:51:52Z-
dc.date.issued2022-
dc.citation.volume57pt_BR
dc.citation.issue1pt_BR
dc.identifier.doihttps://doi.org/10.1080/03601234.2021.2020531pt_BR
dc.identifier.issn0360-1234pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/54140-
dc.description.resumoThis study evaluated the effect of light availability in the culture environment and the application of a post emergence herbicide, halosulfuron methyl, on the management of Cyperus rotundus. The experiment was arranged in a 2 × 6 factorial design; the first factor was two levels of light availability: photosynthetically active radiation at 1180.4 and 411.6 µmols m−2 s−1, and the second factor was halosulfuron methyl doses from 28.13 to 140.62 g ha−1. Photosynthetic efficiency, biomass allocation, accumulation of starch in tubers, and percentage control of C. rotundus were evaluated from 7 to 28 days after herbicide application. Doses greater than 70.30 g ha−1 of halosulfuron methyl were efficient to control C. rotundus, regardless of light availability. However, C. rotundus was managed faster under full sunlight than under shading. The efficiency of the photosystem, starch accumulation, and biomass formation decreased with increasing doses of halosulfuron methyl. In a shaded environment, a dose of 28.13 g ha−1 was sufficient to reduce 96.74% of the dry mass and 91.33% of the number of C. rotundus tubers. The decrease in light intensity associated with the use of halosulfuron methyl represents a promising practice for the control of C. rotundus.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.ispartofJournal of Environmental Science and Health, Part B: Pesticides, Food Contaminants, and Agricultural Wastes-
dc.rightsAcesso Restritopt_BR
dc.subjectHerbicidept_BR
dc.subjectElectron transport ratept_BR
dc.subjectPhotochemical efficiency of photosystem IIpt_BR
dc.subjectWeed managementpt_BR
dc.subject.otherHerbicidaspt_BR
dc.subject.otherOxidantes fotoquimicospt_BR
dc.subject.otherBiomassapt_BR
dc.subject.otherSombras e sombreadospt_BR
dc.titleLight restriction associated with halosulfuron methyl application efficiently reduces the number and mass of tubers of Cyperus rotundus Lpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://pubmed.ncbi.nlm.nih.gov/34962432/pt_BR
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