1. Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, College of Horticulture, China Agricultural University, Beijing 100193, China
2. Department of Fruit Science, College of Horticulture, China Agricultural University, Beijing 100193, China
3. Key Laboratory of Landscaping Agriculture, Ministry of Agriculture and Rural Affairs, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
4. College of Agronomy, Liaocheng University, Liaocheng 252059, China