茶树新梢生育的内源激素水平及其调控机理(第二报)茶树休眠与内源激素的关系

Endogenous Hormone Level and Its Regulation Mechanism in the Growth of Tea Plant Shoot( Ⅱ) The Relationship between Endogenous Hormone and Summer and Winter Dormancy

本文研究了不同茶树品种新梢夏季生长休止、冬季休眠与内源激素水平的关系。结果表明 ,内源激素水平差异及激素间的比值变化与新梢生长和休止密切相关 ,高含量 IAA及高IAA/zeatin与 IAA/GA3比值 ,导致夏季生长休止 ;高含量 ABA及高 ABA/GA3与 ABA/zeatin比值 。

The relationship between the endogenous hormone content and the summer and winter dormancy in the shoots of different tea varieties.The result showed that both hormone levels and ratios among different hormones are closely related to the summer and winter dormancy.High IAA level with high ratios of IAA to Zeatin and IAA to GA3caused the summer dormancy,while high ABA level with high ratios of ABA to GA3and ABA to Zeatin resulted in the winter dormancy.