The changes of vigor and physiological activity of Impatiens balsamina L. seeds stored in the condition of open room, low - temperature storage (0 - 4 ℃ ) and drying silica gel respectively were compared. The results showed that the seeds stored by drying silica gel could maintain higher vigor. Moreover, the activity of SOD, CAT enzyme and the soluble sugar of seeds under drying silica gel storage was obviously higher than that of the seeds in ordinary storage and low temperature storage, while the TBARS content displayed a contrary change. ...