1. College of Forestry, Northwest A&F University, Xianyang 712100, China
2. Research Center for Jujube Engineering and Technology National Forestry and Grassland Administration, Xianyang 712100, China
3. Key Comprehensive Laboratory of Forestry of Shaanxi Province, Northwest A&F University, Xianyang 712100, China
4. College of Horticulture and Forestry, Tarim University, Alar 843300, China