1选育经过20世纪80年代,课题组许建楷和叶自行2位老师接受我国柑桔资源调查项目,负责四会柑桔品种资源调查,在调查中发现了无子沙糖桔;其后在参与四会市石狗镇666.7公顷柑桔长廊的规划及建设中,继续进行无子沙糖桔的调查。首先在石狗狗仔坑发现连片8年生的无子沙糖桔园,并在带 1 Breeding Through the 1980s, Xu Jiankai and Ye Zijie, two teachers of the project team, accepted the citrus resources survey project of China and investigated the citrus variety resources of the four associations. In the survey, Stone City, Sihui City, 666.7 hectares citrus citrus promenade planning and construction, to continue the investigation of non-sugar Shazi. First of all, in the stone dog paparazzi found contiguous 8-year-old childless sugar orange garden, and in the band