茶树芽休眠及其解除是影响茶树安全越冬和采摘时期的重要生物学现象，研究其调控机制具有重要意义。根据前一个项目的研究结果，本实验室提出了生长素促进茶树越冬腋芽休眠的假设。本研究通过测定不同物候期茶树品种腋芽和母叶中生长素在整个休眠到萌发阶段的动态变化，结合生长素和休眠相关基因的克隆与功能研究、外源生长素及生长素抑制物质处理对茶树芽休眠与萌发的影响、以及对生长素和休眠相关基因表达的影响，明确生长素在茶树休眠中所起的作用及其分子机理，进而验证所提出的假设正确与否，为今后茶树生产和物候期的遗传改良提供理论依据。

Bud dormancy and budbreak is an important biological phenomena and beneficial adaptation of tea plant for living through the winter safely, and is an important factor that affect picking time in spring as well. So, it is important to study the regulatory mechanism of it. According to the results of our previous project, we suppose that auxin promote the dormancy of tea plant axillary buds in winter. We suppose to do the following process to verify the hypothesis: (1) measuring the dynamic changes of auxin in axillary buds and mature leaves on the budset of different phenophase cultivars from dormany induction to budbreak; (2) clone and function analyse of auxin-related and dormancy-related genes; (3) testing the changes of auxin and dormancy related genes expression after exogenous applying auxin and auxin inhibitors on tea plant, and observing bud dormancy and budbreak as well, in order to clarify the regulatory function and molecular mechanism of auxin in the period from dormany induction to budbreak. The present study will offer theoretical basis for tea production and genetic improving of phenophase.