With the extend of cold stress, The consent of CaM were taken increasing then decreasing tendency by treatment of CaCl_2,EGTA, LaCl_3,CPZ and the consent treated by CaCl_2 was significant higher than others during the process.

• 在低温胁迫72h时，钙调素含量达到最大，EGTA、LaCl_3、CPZ、单纯低温锻炼和正常情况下生长的三尖杉叶片中钙调素含量分别比CaCl_2处理降低了74.；4%25、33