在龙眼花芽生理、形态分化期 (1、2月份 )各喷施基因活化剂 2 5 0、5 0 0倍液 1、2次 ,前者增产 378.5kg/ 6 6 7m2 和 791kg/ 6 6 7m2 ,效果十分显著 ;后者增产 5 5 .1kg/ 6 6 7m2 和 10 7.9kg/ 6 6 7m2 ,效果比较显著。生物学上表现在“冲梢”量和春梢营养枝抽发量少 ,着果好 ,果穗长度缩短 ,分枝数增多 ,单穗结果数增加 12 3～ 36个 ;单穗果重增重 744 .2～ 2 14.3g ;小果数减少 31.2 5 %～ 1.46 %。果实品质与对照比可食率增加 0 .6 7%～ 4.48% ;可溶性固形物提高 8.0 8～ 1.98个百分点。 In the longan flower bud physiology and morphological differentiation period (January and February), gene activators were sprayed for 250 times and 1,200 times respectively. The former increased 378.5kg / 667m2 and 791kg / 667m2, Very significant; the latter yield 551kg / 6 67m2 and 10 7.9kg / 6 67m2, the effect is more significant. Biological performance in the “red shoot” amount and spring shoots nutrition shoots less hair, fruit is good, ear length shortened, the number of branches increased, the number of single spike results increased 12 3 ~ 36; 744.2 ~ 2 14.3g; small fruit number decreased 31.2 5% ~ 1.46%. The fruit quality and the control edible rate increased 0.676% ~ 4.48%; soluble solids increased 8.08 ~ 1.98 percentage points.