New isoxazoles and isothiazolines, plant protection products containing them and a detection procedure for the identification of potential plant protection products

摘要

Compounds of the general formula I or their salts, IMAGE in which X1 is R1 and X2 is COR or X1 is COR and X2 is R1 and X is O or S, R is OH or SH and acid derivatives thereof as defined in Claim 1, R1 is hydrogen, (substituted) alkyl, (substituted) alkenyl, (substituted) alkinyl, (substituted) cycloalkyl, (substituted) cycloalkenyl, are suitable as safeners in cereals, rice, maize and other crop plants. The invention also relates to a screening method for the indirect detection of safener activity by measuring the increased degradation rate of a herbicide in germinating seed, in which method a radiolabelled herbicide is used.