CIAT184 were measured monthly.The results were as follows: 1.Contents of chlorophyll and carotenoid, ratio of chla/b decreased under low temperature.

• 结果表明： 1．季节性低温降低了叶片叶绿素和类胡萝卜素的含量，也降低了Chla/b比值，但类胡萝卜素降低较叶绿素缓慢，含量变化较叶绿素的稳定。