Change of gibberellin and abscisic acid content during fruit development of Prunus persica

The change of endogenous gibberellin and ABA content was measuredduring the fruit development of Prunus persica. GA₅, GA₃₂ andtwo unidentified gibberellins, were found throughout the developmentalstages. GA₅, GA₃₂ and ABA showed maximum peaks in their contentsixty days after full bloom, which suggests that they play importantroles in fruit development. ¹ To whom correspondence should be addressed. (Received December 12, 1975; )