Abstract
It has been found in cyanic strains that ant, hocyan appeared at certain stage during bud development. But the bud development of cyanic strain was same to that of acyanjc strains, in which anthocyan did not appear till infiorescence. The refore, the difference of anthocyan appearance between cyanic and acyanic strains may be due to some physiological phenomena during bud development stage. These experiments were carried out in order to clarify the mechanism of anthocyan appearance from the physiological and ontogenical standpoint of view using three different straials ... Purple, Salmon and White I in petunia hybrida. The distribution of anthocyan in the petal is confined only in epidermal cells, in which the appearance of'anthocyan is accompanied by the development of papilla. The bud usually grows very rapidly and it has also been found that the rate of respiration increases remarkably in cyanic strains at the stage of anthocyan appearance.
