College of Horticulture Northwest A&F University Yangling 712100 P.R.China;
State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple College of Horticulture Northwest A&F University Yangling 712100 P.R.China;
College of Horticulture Northwest A&F University Yangling 712100 P.R.China;
State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple College of Horticulture Northwest A&F University Yangling 712100 P.R.China;