Study on Variation Law of Endogenous Hormones in Buds of Alternate Bearing Apple Tree
Lu Chao
Wang Jinzheng
Nie Peixian
Xue Xiaomin
Abstract：Using 23-year old Fuji apple trees as materials ,the variation characteristics of endogenous hormones in spur terminal buds during growth period and in flower and leaf buds during dormant period were studied taking stable bearing apple trees as control .The results showed that during dormant and growth peri-ods,the contents of IAA, ZR, GA3 and ABA in terminal,flower and leaf buds of on -year bearing apple tree were the largest ,and those of off -year bearing apple tree were the lowest .The contents of IAA , ZR, GA3 and ABA in flower and leaf buds of 3 types of apple trees were stable during dormant period ,and increased after sprout period except ABA .The contents of IAA ,ZR and GA3 in leaf buds increased obviously by 3.0%~7.6%, 4.3%~22.3%and 8.6%~10.3%, while the content of ABA decreased obviously by 30.8%~41.2%.
Keywords：AppleAlternate bearing treeBudEndogenous hormone
Publication Date：2014-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：5( 49-53 )