Abstract
Four gibberellin (GA 1, GA 3, GA 4 and GA 37) glucosyl esters were synthesized and found to be as active as their respective free acids in the rice seedling bioassay. The rapid hydrolysis of the glucosyl esters in rice seedlings was demonstrated by feeding experiments with glucosyl esters of [ 3H]GA 1 and [ 3H]GA 4.
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