干旱下KHSO_3及NaHSO_3对苹果生产的影响

Effects of Spraying NaHSO_3 or KHSO_3 on Apple under Drought Stress

[目的]研究干旱下KHSO3和NaHSO3溶液对苹果生产的影响.[方法]采用5 mmol/L KHSO3和5mmoL／L NaHSO3溶液喷施苹果树,以清水作对照,调查果实月平均生长量和产量,计算同步相对生长百分数.[结果]在干旱年,果实月生长量高出对照11.93～12.89个百分点,果实产量高出对照9.31～10.21个百分点;在多雨年,果实月生长量高出对照5.15 ～5.16个百分点,果实产量高出对照组2.07和3.84个百分点.独立性检验证明,K＋和Na＋与苹果的生长量及产量的提高也有相关性.[结论]在干旱条件下,喷施KHSO3或NaHSO3溶液对苹果生产有明显的促进作用.

[Objective] The research aimed to study the effect of NaHSO3 and KHSO3 on apple under drought condition.[Method] 5 mmol/L NaHSO3 and 5 mmol/L KHSO3 was sprayed on apple trees,and water was used as a control,month average growth and yield were measured and synchronous growth was calculated.[Result] Under drought condition,the fruit month average growth was greatly higher than control group by 11.93-12.89 points,the fruit yield was higher than control group by 9.31-10.21 points.In the rainy year,the fruit month average growth was greatly higher than control group by 5.15-5.16 points,the fruit yield was higher than control group by 2.07 points.The independent test proved that the growth and yield of apple has correlation with K ＋ and Na ＋.[Conclusion] NaHSO3 and KHSO3 had the promoting effects on apple under drought condition.