目前 ,广西的龙眼种植面积已达 2 5万 hm2 ,但大部分龙眼采收期都集中在 7～ 8月 ,鲜果供应期短。为探索药物催花新技术 ,人为地调控龙眼开花期 ,达到推迟或提早采收期 ,以调节龙眼鲜果的市场供应、提高经济效益特进行了本试验。试材为 8～ 1 0年生的石硖、储良 ;1 3～ 1 5年生 At present, Guangxi’s longan cultivation area has reached 250,000 hm2, but most of the longan harvesting period are concentrated in July and August, fresh fruit supply period is short. In order to explore the new technique of medicinal flower, artificially regulate the flowering period of longan to achieve postponement or early harvesting period, and to adjust the market supply of longan fruit and improve the economic efficiency of this experiment. Materials for the 8 to 10 years Shijie, Chu Liang; 1 3 ~ 1 5-year-old