硫代硫酸钾(KTS)在梨疏花疏果上的应用

Application of Potassium Thiosulfate (KTS) on Thinning Flower and Fruit of Pear

以‘奥噶二十世纪’梨为试验材料,研究了不同质量浓度硫代硫酸钾(potassium thiosulphate solution,KTS)对梨疏花疏果效应及果实品质的影响。在初花期(花朵开放率20%)和盛花期(花朵开放率80%)各喷施1次KTS,第2次生理落果期后,统计坐果率,果实成熟后测定果实品质生理指标。结果表明:第2次生理落果期后,浓度为0.5%KTS的处理坐果率为15%,浓度为1.0%KTS的处理坐果率为0.2%,浓度为1.5%的KTS处理坐果率为0.25%,CK坐果率为30.25%。综合对果实品质影响,浓度为0.5%KTS处理疏花疏果效果较好。

The effects of different concentrations of potassium thiosulfate (potassium thiosulphate solution,KTS) on thinning flower and fruit and fruit quality of 'Oka 20th Century' pear were studied. KTS was sprayed on the flowers once in the initial flowering period (20% blossom rate) and once in the full flowering (80% blossom rate). After the second physiological fruiting stage, the fruit setting rate was calculated and the physiological indexes of fruit quality were determined The results showed that after the second physiological fruit-setting period, the fruit-setting rate with the treatment of 0.5% KTS was 15%, the treatment with 1.0% KTS was 0.2%, the treatment with 1.5% KTS was 0.25%, and the fruit-setting rate with the treatment of CK was 30.25%.The effect of 0.5% KTS on fruit quality was better.