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Effect of sodium bisulfate on the phytotoxicity, retention, foliar uptake, and translocation of imazamethabenz on wild oats (Avena fatua L.)



Effect of sodium bisulfate on the phytotoxicity, retention, foliar uptake, and translocation of imazamethabenz on wild oats (Avena fatua L.)



Weed Science 43(1): 40-46



Studies detennined the effect of sodium bisulfate (NaHSO4) on the phytotoxicity, retention, uptake, and translocation of the suspension concentrate formulation of imazamethabenz in wild oats. NaHSO4 completely solubilized this herbicide formulation when added in an equimolar concentration and did not affect herbicidal activity at NaHSO4 concentrations below 28 mM when used in a carrier volume of 100 L ha-1. NaHSO4 improved phytotoxicity at a carrier volume of 33 L ha-1. NaHSO4 at 28 mM increased the efficacy of imazamethabenz applied as individual drops on growth chamber-grown wild oats. The herbicide retention was not changed but foliar absorption and acropetal translocation were increased, while basipetal translocation was decreased. The increase in phytotoxicity of imazamethabenz with NaHSO4 was related to absorption of imazamethabenz by the target plants.

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Accession: 002604519

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