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本文研究了茶树对不同供水水平及干旱胁迫的生理响应。结果表明：Ｐｎ 中湿＞ 高湿＞ 低湿，Ｔｒ高湿＞ 中湿＞ 低湿，Ｇｓ高湿＞ 低湿＞ 中湿，Ｃｉ低湿＞ 高湿＞ 中湿；Ｐｎ、Ｔｒ、Ｇｓ 随干旱胁迫的持续而逐渐下降，Ｃｉ随Ｐｎ 下降而上升；在干旱胁迫过程中，叶片Ｐｒｏ 含量大幅度上升，轻度胁迫下，Ｐｒｏ 累积速率与茶树耐旱性有一定相关；干旱胁迫引起内源ＡＢＡ 迅速累积，降低Ｇｓ 和Ｔｒ，从而减轻胁迫伤害。
The paper studied the physiological response of tea plant to different water supply levels and drought stress. The results showed that Pn, Tr, Gs increased with the increase of drought stress, Pn, Tr, Gs under the conditions of wet> high humidity> low humidity, Tr high humidity> medium humidity> low humidity, Gs high humidity> low humidity> Ci gradually increased with the decrease of Pn. In the process of drought stress, the content of Pro in leaf increased significantly. Under mild stress, the accumulation rate of Pro was related to the drought tolerance of tea plant. The drought stress caused rapid accumulation of endogenous ABA and decreased Gs and Tr, thus reducing coercion damage.