Excellent traits could be combined by hybridization which has played an important role in genetic improvement of plant. It is urgent to provide new cultivars with excellent trait in Chinese jujube industry. However, up to now, no cross cultivars has been successfully utilized in Chinese jujube. There are two obstacles in Chinese jujube cross, difficulty in manual emasculation and embryo abortion. Chinese jujube flower is small with diameter 3-5 mm and inevitable hurt to flower during manual emascula...