关于赤霉素GA_3对葡萄无核品种的增产、大粒化,对有籽品种的无核化,国内外曾多次报道。但在玫瑰香品种上的具体运用却报道甚少。玫瑰香品种,在北京郊区、昌黎县内都是主栽品种,年产量5500多吨。1983年前,因喷蘸赤霉素的时期与浓度不妥,曾出现负效果。1984年以后,作者经过连续两年的试验,肯定了赤霉素GA_3对玫瑰香葡萄的产量、品质及成熟期,均有促进作用。1986年开 GA3 has been reported many times both at home and abroad on the increase of grain yield and grain size of GA3 and the denuclearization of seed varieties. However, the specific use of Rosewood species has been reported very little. Rose incense varieties, in the suburbs of Beijing, Changli County are cultivated varieties, more than 5,500 tons of annual output. Before 1983, due to spray gibberellin in the wrong period and concentration, there have been negative effects. After 1984, after two consecutive years of experiments, the author confirmed that GA3 can promote the yield, quality and maturity of Muscat grapevine. Opened in 1986