Abstract
The study was carried out to clarify the effect of several growth regulators (TIBA, TCA, IAA and GA) on the growth of potato stolons, and the following results were obtained : 1) Stolon showed a tendency to be turned into leafy stolon with TIBA, and to be maintained stoloniferous growth with IAA. 2) By means of bioassays of diffusible auxins (diffused by ethyl-ether), the stoloniferous stolon showed a higher activity at Rf value 0.4-0.5 (IAA) than the leafy one.
