1. College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China
2. Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China
3. The Southwest Institute of Fruits Nutrition, Banan District, Chongqing 400054, China