Abstract: In order to study the growth change under the meteorological condition of low temperature,we focused on the case study of low temperature,which were controlled at 5℃,10℃,15℃ and 25℃(CK),with chamaecrista rotundifolia.The results indicated that the growth rate of chamaecrista rotundifolia decreased in low temperature,and the plant height,root length,dry mater weight of shoot,root weight,total biomasses,root-top ratio and root activity also obviously decreased in low temperature.

Key words: Chamaecrista rotundifolia, Low temperature, Growth