1. College of Horticulture, Qingdao Agricultural University , Qingdao, Shandong 266109 , China
2. Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao Agricultural University , Qingdao, Shandong 266109 , China
3. Laboratory of Quality & Safety Risk Assessment for Fruit (Qingdao), Ministry of Agriculture and Rural Affairs, Qingdao Agricultural University , Qingdao, Shandong 266109 , China
4. Qingdao Key Laboratory of Modern Agriculture Quality and Safety Engineering, Qingdao Agricultural University , Qingdao, Shandong 266109 , China
5. Academy of Agricultural Sciences of Qingdao , Qingdao, Shandong 266100 , China