Wang, Hua, College of Enology, Northwest A&F University, Yangling 712100, Shaanxi, China and Shaanxi Engineering Research Centre for Viti-Viniculture, Northwest A&F University, Yangling 712100, Shaanxi, China andChina Wine Industry Technology Institute, Yinchuan 750021, Ningxia, China and Engineering Research Center for Viti-Viniculture, National Forestry and Grassland Administration, Yangling 712100, Shaanxi, China, China