X M Cui1, Z J Chen, C L Wang, J Zeng. 1. Wenshan Research Institute of Sanqi Science and Technology, Wenshan 663000, Yunnan, China.
Abstract
OBJECTIVE: To determine the optimal harvest time for P. notoginseng through studying the changes of saponin contents with growth periods. METHODS: P. notoginseng samples were collected from the experimental plot regularly, and then the contents of total saponin and some main single saponins were analyzed by HPLC. RESULTS: Total saponin contents decreased from April through July, and increased from August through December. CONCLUSION: The optimal harvest time is determined as from October through December, which corresponds to the traditional harvest time.
OBJECTIVE: To determine the optimal harvest time for P. notoginseng through studying the changes of saponin contents with growth periods. METHODS:P. notoginseng samples were collected from the experimental plot regularly, and then the contents of total saponin and some main single saponins were analyzed by HPLC. RESULTS: Total saponin contents decreased from April through July, and increased from August through December. CONCLUSION: The optimal harvest time is determined as from October through December, which corresponds to the traditional harvest time.