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dc.contributor.authorPalma-Bautista, Candelario
dc.contributor.authorTataridas, Alexandros
dc.contributor.authorKanatas, Panagiotis
dc.contributor.authorTravlos, Ilias S.
dc.contributor.authorBastida, Fernando
dc.contributor.authorDomínguez-Valenzuela, José Alfredo
dc.contributor.authorPrado, Rafael de
dc.date.accessioned2020-10-19T09:30:39Z
dc.date.available2020-10-19T09:30:39Z
dc.date.issued2020
dc.identifier.urihttp://hdl.handle.net/10396/20525
dc.description.abstractIn this work, we studied the effect of three glyphosate formulations (isopropylamine, ammonium and potassium salts) and two non-ionic adjuvants on the resistance response of two resistant (R1, R2) and one susceptible population of the highly invasive Asteraceae, Conyza sumatrensis, from Southern France vineyards. Only in R1, an amino acid substitution (Pro106Thr) was found in the enzyme 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS). The two adjuvants, in a similar fashion, significantly reduced GR50 values for every population and glyphosate formulation. Without adjuvants, glyphosate as potassium salt was the only formulation able to significantly reduce the GR50 values of every population. For every population, the two adjuvants improved, indistinguishably, leaf retention of the herbicidal solution and the potassium salt formulation led to the highest retention, both with and without the adjuvant added. Uptake responses paralleled those of retention and adjuvant addition was more effective in increasing foliar uptake of the lower performing formulations (isopropylamine and ammonium salts). The allocation pattern of glyphosate among plant compartments was only dependent on population, with R2 retaining most glyphosate in the treated leaf, clearly suggesting the occurrence of a Non-Target Site Resistance (NTSR) mechanism. Results indicate that control of weed populations possessing NTSR mechanisms of resistance to glyphosate may be improved through adequate selection of formulation and adjuvant use.es_ES
dc.format.mimetypeapplication/pdfes_ES
dc.language.isoenges_ES
dc.publisherMDPIes_ES
dc.rightshttps://creativecommons.org/licenses/by/4.0/es_ES
dc.sourceAgronomy 10(10), 1599 (2020)es_ES
dc.subjectTSR and NTSR mechanismses_ES
dc.subjectFoliar retentiones_ES
dc.subject14C-glyphosatees_ES
dc.subjectAbsorptiones_ES
dc.subjectTranslocationes_ES
dc.titleCan Control of Glyphosate Susceptible and Resistant Conyza sumatrensis Populations Be Dependent on the Herbicide Formulation or Adjuvants?es_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherversionhttp://dx.doi.org/10.3390/agronomy10101599es_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES


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