1. College of HorticultureNanjing Agricultural University Nanjing China
2. Tobacco Science College/National Tobacco Cultivation and Physiology and Biochemistry Research Centre/Key Laboratory for Tobacco Cultivation of Tobacco IndustryHenan Agricultural University Zhengzhou China
3. Institute of Food Safety and NutritionJiangsu Academy of Agricultural Sciences Nanjing China
4. Central LaboratoryJiangsu Academy of Agricultural Sciences Nanjing China