４个荔枝新品系简介从１９８７年开始，我们与海南农垦局、琼山水果所在永兴、石山地区进行稀优荔枝资源调查、筛选与利用工作。选出４个新品系，至１９９５年底这些株系的无性系二代在全省种植１５３．３ｈｍ２（公顷），无性系三代在美万新村建母树园１０．１７ｈｍ２，... Introduction of 4 Litchi New Lines Since 1987, we conducted surveys, screening and utilization of diluted litchi resources with Hainan Bureau of Reclamation, Yongxing and Shishan where Qiongshan fruit is located. Four new lines were selected. By the end of 1995, the second generation of clones of these lines planted 153.3hm2 (hectare) in the whole province, and three generations of clones had built 10.17hm2 of mother trees in Million New Village.