细胞分裂素(激动素)为去氧核糖核酸降解产物,广泛分布于果树的根尖、梢尖、幼果等器官,其主要生理功能为刺激细胞分裂,延迟器官衰老等。外用细胞分裂素在果树上促进开花着果,提高产量与品质的效果已经证实。但目前细胞分裂素的化学合成产品价格昂贵,难以在生产中应用。笔者应用中国农科院原子能所研制、浙江嘉善县农用微生物厂 Cytokinin (kinetin) is a deoxyribonucleic acid degradation products, widely distributed in the root tip, tip, fruit and other organs of the tree, its main physiological function is to stimulate cell division, delaying organ aging. Topical cytokinin in the fruit tree to promote flowering fruit, the effect of increased yield and quality has been confirmed. However, the current chemical synthesis of cytokinin products are expensive and difficult to apply in production. I applied the Chinese Academy of Agricultural Sciences developed by the Atomic Energy, Jiashan County, Zhejiang Agricultural Microbiological Factory