1995年初 ,从中国农科院郑州果树研究所和山东省果树研究所引进了 7个李新品种 ,定植于本所果园内 ,通过连续 5年观察 ,发现其中 3个品种适应性较好。　　试验地土壤为紫色土 ,ｐＨ值为 8.1,年均温19.6℃ ,无霜期 340天 ,年降雨量 1177ｍｍ。参试品种有 :红肉、玫瑰皇后、先锋 At the beginning of 1995, seven new varieties of Li were introduced from Zhengzhou Fruit Research Institute of Chinese Academy of Agricultural Sciences and Shandong Fruit Research Institute. They were planted in the orchard of our institute. Through five consecutive years of observation, three varieties were found to be better adaptable. The purple soil soil test, pH 8.1, average annual temperature 19.6 ℃, frost-free period of 340 days, the annual rainfall of 1177mm. Test varieties are: red meat, rose queen, pioneer