Abstract: The seed dormancy relieving of Fritillaria thunbergii Miq. required 50 days at 8~10 ºC and 80 days at 3~5 ºC. In order to study the physiological basis for seed dormancy relieving. peroxidase, acid phosphatase and proteins were assayed by spectrophotometric analysis and electrophoresis. The results showed that peroxidase activity and acid phosphatase activity increased and new bands were detected in protein patterns as the seeds were treated with low temperature, these changes resulted in the seed dormancy relieving.

Key words: Fritillaria thunbergii Miq, Dormancy, Pcroxidase, Acid phosphatase, Protein