1. Key words: corn, maize, herbicide tolerance, acetohydroxy acid synthase, imidazolinone, sulfonylurea.

2. Objective To study the effect and mechanism of amylin upon oral sulfonylurea drugs and its action to stimulate the islet cell secretion of insulin in rats.

3. The harvesting of fruit, in particular olives and citrus fruit, is aided by inducing abscission by applying to fruit-bearing parts of the plant certain imidazolinone or sulfonylurea compounds.

4. together form an 1,2-phenylene, 1-cyclohexen-1,2-ylene or 4-cyclohexen-1,2-ylene group and, at least one herbicide from the class of chloro acetanilide, urea, uracil, thiolcarbamate, triazine sulfonylurea.