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本文研讨厂“七五”以来新育成的浙农121等6个茶树良种叶水势和萎蔫系数与耐旱力的关系。结果表明：不同供水水平，不同茶树品种叶水势与美蔫系数的变化趋势大体一致；高湿、中湿条件下，叶水势变化小，低温条件下，叶水势变化明显，下降幅度大；叶水势高，萎蔫系数低的茶树品种，耐旱力较强。
This paper discusses the relationship between leaf water potential, wilting coefficient and drought tolerance of 6 tea tree varieties newly cultivated since the 7th Five-year Plan. The results showed that the trend of leaf water potential and the beauty coefficient of different tea varieties were basically the same under different water supply levels. Under the condition of high humidity and moderate humidity, the change of leaf water potential was small. Under the condition of low temperature, the leaf water potential changed obviously, High, low coefficient of wilt tea varieties, drought tolerance.