采用CPPU、GA3、SM对京优葡萄分别在盛花前后 7d进行处理。结果显示 :①CPPU 2 0mg/L +GA35 0mg/L处理 ,果粒增大、早熟效果最显著。②GA335～ 10 0mg/L处理 ,随浓度增大 ,去核、早熟效果越明显。③CPPU 5～ 2 0mg/L范围内对提高坐果率效果显著且与浓度的增加成正比 ,缺点为推迟果粒成熟。④SM仅对提高坐果率效果显著 By using CPPU, GA3 and SM, Jingyou grapes were treated 7 days before and after full bloom. The results showed that: ① CPPU 20mg / L + GA35 0mg / L treatment, fruit size increased, the most obvious effect of precocious. ②GA335 ~ 10 0mg / L treatment, with the concentration increases, to enucleate, the more obvious premature. ③CPU 5 ~ 20mg / L range to improve the rate of fruit setting significantly and is proportional to the increase in concentration, the disadvantage is to postpone the maturity of fruit. ④SM only to improve the effect of fruit set significantly