EFFECT OF SODIUM BISULFATE ON THE PHYTOTOXICITY, RETENTION, FOLIAR UPTAKE, AND TRANSLOCATION OF IMAZAMETHABENZ ON WILD OATS (AVENA-FATUA L)

Studies determined the effect of sodium bisulfate (NaHSO4) on the phyt otoxicity, retention, uptake, and translocation of the suspension conc entrate formulation of imazamethabenz in wild oats, NaHSO4 completely solubilized this herbicide formulation when added in an equimolar conc entration and did not affect herbicidal activity at NaHSO4 concentrati ons 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 2 8 mM increased the efficacy of imazamethabenz applied as individual dr ops on growth chamber-grown wild oats, The herbicide retention was not changed but foliar absorption and acropetal translocation were increa sed, while basipetal translocation was decreased, The increase in phyt otoxicity of imazamethabenz with NaHSO4 was related to absorption of i mazamethabenz by the target plants.