Abstract
Nine varieties of kidney bean were tested for their stem elongation responstes to CA-3 through application of leaf spray. Their sensitivity was variable, a variety Mantle was the most sensitive one, and Masterpiece was the least sensitive one. In leaves of GA-3 sensitive verieties, the applied GA-3 remained unchanged. But in leaves of other varieties, GA-3 seemed to be converted into an unknown type, of gibberellin, which was detected at Rf 0.3-0.4 on the paperchromatogram of iso-propanol/ammonia water/water (10 : 1 : 1) solvent.
