为促进保山地区银杏生产的发展 ,1994年从山东省郯城引入 5个品种连同本地的 4个品种 (类型 )在该地区的腾冲县进行了银杏 9个品种的对比栽培试验。结果表明 :在相同的条件下 ,幼树期 (8年生 )本地品种(类型 )的早实性不如引入品种 (外来种 ) ,初步看出引进品种中的郯城 13号、郯城 9号是当地营建银杏早实丰产园的首选品种 ,尤其郯城 13号品种表现优良 ,而本地品种以 9号 (永昌大白果 )表现较好 In order to promote the development of Ginkgo biloba production in Baoshan, five cultivars of nine varieties of Ginkgo biloba were introduced in 1994 in Tengchong County of Shandong Province by introducing five varieties together with four local varieties (types). The results showed that under the same conditions, the early solidity of sapling (8-year-old) local varieties (types) was not as good as that of introduced varieties (alien species). It was initially concluded that Yuncheng 13 and Yuncheng 9 among the introduced varieties were local construction Ginkgo biloba fruit garden preferred varieties, especially Tancheng 13 varieties performed well, while the local varieties to No. 9 (Yongchang Da Bai Guo) performed better