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[目的]研究喷施多效唑和乙烯利混合剂对妃子笑荔枝内源激素及碳氮营养的影响。[方法][结果]试验表明,叶面喷施多效唑和乙烯利混合剂,能有效抑制妃子笑荔枝抽生冬梢,促进花芽分化,提高成花率;喷施药剂能提高荔枝树内源ABA、ZR、ABA/IAA、ABA/GA3、ZR/IAA、ZR/GA3值,降低GA3和IAA含量,提高可溶性糖、淀粉、全氮含量,增加C/N比值,而提高成花率。[结论]叶面喷施多效唑和乙烯利混合剂是解决荔枝暖害问题的一个有效途径。
[Objective] The research aimed to study the effects of paclobutrazol and ethephon mixture on endogenous hormones and carbon and nitrogen nutrition of litchi litchi in Feizixiao. [Method] [Result] The results showed that foliar application of paclobutrazol and ethephon mixture could effectively inhibit the winter shoots of litchi from Feizixiao and promote the flower bud differentiation and increase the flower rate. Spraying agent could increase the endogenous ABA , ZR, ABA / IAA, ABA / GA3, ZR / IAA and ZR / GA3, respectively, decreased the content of GA3 and IAA, increased the content of soluble sugar, starch, total nitrogen and C / N ratio. [Conclusion] The foliar application of paclobutrazol and ethephon mixture was an effective way to solve the problem of warming of litchi.