Studies on the Annual Changing Law of the Activity of PPO in Kernel-Apricot
- Received Date: 2003-02-25
Abstract: The activity of PPO of 5 various organs in 4 different growth period of Kernel-apricot was analysed. The results showed that:(1)The activity of PPO of various organs had a orderly change,the activity of PPO of leaves reached the maximum; the activities of PPO of branch, truck, thick root,thin root were higher in May and March than in July and October conspicuously.(2)The activity of PPO was related to cold resistance and growth of the part above the soil surface of Kernel-apricot, and it could be used as biochemical index of adverse circumstances resistance of Kernel-apricot.(3)Cu and Zn,as nutrient elements,had effects on the activity of PPO,so as to affect the growth of Kernel-apricot.