GA3 at concentration of 500 mg·dm-3 stimulated the elongation more than 250 mg·dm-3 ; the plants sprayed twice were longer than those, which were sprayed once and non-sprayed . Elongation of shoots, was however not impor-
tant, and corymbs were shorter and narrower,containing less inflorescences.Both GA3 con-centration and the number of applications did not have any effect on the width of the plants.