不同化学药剂对“夏红”“华硕”“富士”苹果品种疏花疏果的影响

Effects of Different Chemical Agents on Flower and Fruit Thinning of ‘Xiahong’ ‘Huashuo’ and ‘Fuji’ Apple Varieties

摘要: 以七年生苹果品种“夏红”“华硕”“富士”为试验材料，选用45%石硫合剂晶体、有机钙制剂、西维因3种药剂进行疏花疏果，研究不同化学药剂的疏除效果，以期为苹果化学疏花疏果提供参考依据。结果表明：3种化学药剂对“夏红”“华硕”“富士”苹果品种均有不同程度的花果疏除作用。从单果比例、坐果率、空台率、果实品质指标等几方面综合比较，疏花疏果效果较好的为45%石硫合剂晶体150倍，有机钙制剂200倍，西维因2.5 g·L^-1。

Abstract: Taking 7-year-old apple varieties ‘Xiahong’‘Huashuo’ and ‘Fuji’ as experimental materials, 45% lime-sulfur crystal, organic calcium preparation and carbaryl were used for flower and fruit thinning, the effects of different chemical agents were studied, in order to provide reference for apple chemical flower and fruit thinning.The results showed that the three chemical agents have different degrees of flower and fruit thinning effects on ‘Xiahong’‘Huashuo’ and ‘Fuji’ apple varieties.According to the comprehensive comparison of single fruit ratio, fruit setting rate, empty rate and fruit quality index, the best flower and fruit thinning effect was 150 times of 45% lime-sulfur crystal, 200 times of organic calcium preparation and 2.5 g·L^-1 carbaryl.