Effect of Paclobutrazol plus Ethephon Treatment on Endogenous Hormones and Carbon and Nitrogen Nutrients in Litchi Variety ‘Feizixiao'  

多效唑+乙烯利对妃子笑荔枝内源激素及碳氮营养的影响(英文)

作　　者：陈炫[1,2] 陶忠良[3] 吴志祥[3] 王令霞[4] 符惠珍[5] 周兆德[6] 范武波[1,2] 

机构地区：[1]中国热带农业科学院湛江实验站,广东湛江524013 [2]中国热带农业科学院热带旱作农业研究中心,广东湛江524013 [3]中国热带农业科学院橡胶研究所农业部儋州热带作物科学观测实验站,海南儋州571737 [4]海南大学园艺园林学院,海南海口570228 [5]海南大学外国语学院,海南海口570228 [6]海南大学,海南海口570228

出　　处：《Agricultural Science & Technology》2013年第8期1125-1131,共7页农业科学与技术（英文版）

基　　金：南亚热作农技推广与体系建设财政专项(13RZNJ-26)~~

摘　　要：[Objective] This study aimed to investigate the effect of spraying the mixture of paclobutrazol and ethephon on the endogenous hormones and carbon and nitrogen nutrients in litchi variety ＇Feizixiao＇.[Method] [Result] The results showed that foliar spraying of the mixture of paclobutrazol and ethephon could effectively inhibit litchi variety ＇Feizixiao＇ to produce winter shoots,promote the flower bud differentiation and improve flower formation rate; meanwhile,this treatment could also increase the contents of ABA and ZR,and the ratios of ABA/IAA,ABA/GA3,ZR/IAA,ZR/GA3,and decrease the contents of IAA and GA3; additionally,it could increase the contents of soluble sugar,starch and total nitrogen,and raise C/N ratio,thus improving the flower formation rate.[Conclusion] Foliar spraying of the mixture of paclobutrazol and ethephon is an effective pathway for solving warmth damage to litchi.[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。

关 键 词：Litchi variety ＇Feizixiao＇ Paclobutrazol and ethephon Endogenous hormones Carbon and nitrogen nutrients 

分 类 号：S667.1[农业科学—果树学]