1. Tropical Crops Genetic Resources Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, China
2. College of Horticulture, South China Agricultural University, Guangzhou 510642, China
3. Guangdong Helinong Biological Seeds Co., Ltd., Shantou 515800, China
4. Guangdong Helinong Agricultural Research Institute Co., Ltd., Shantou 515800, China
5. Institute of Agricultural Science Research of Jiangmen, Jiangmen 529060, China