Effects of air humidity on several physiological and biochemical indexes of Huperzia serrata

Objective:To study the e ects of air humidity on several physiological and biochemical indexes of H.serrata.Method:Determin soluble protein,soluble sugar contents,activities of PPO,POD and CAT under the conditions of di erent air humidity.Result:The condition of 90% relative air humidity is more suitable for the growth of H.serrata.Conclusion:The result can be used for GAP of H.serrata.