Abstract:The effects of three exogenous hormones on germination of the seed of Chinese fir (Cunninghamia lanceolata) were studied. The results showed that the seed germination was actively stimulated by Gibberellin (GA), and significantly inhibited by 6-benzylaminopurine (6-BA) and Abscisic acid (ABA). When the three exogenous hormones were used together, it was shown that GA at 50-100 ppm had an active role in promoting seed germination, while 6-BA at concentration not exceed 50 ppm exhibited disinhibition effect. The inhibition effect of ABA could be antagonized by 6-BA and GA.
