自1979年起,我们先后从辽宁、浙江、北京、山东引进8个梨树新品种,进行引种试验,现将初步成效报道如下。一、自然概况与引进品种引种工作在合肥市园艺场进行,该场位于北纬31°51′,东经117°17′;年平均气温15.7℃,1月平均气温1.9℃,7月平 Since 1979, we have introduced 8 new pear varieties from Liaoning, Zhejiang, Beijing and Shandong for introduction test. The preliminary results are reported below. First, the natural profile and the introduction of species introduced in Hefei gardening field, the field is located at latitude 31 ° 51 ’, longitude 117 ° 17’; the annual average temperature of 15.7 ℃, January average temperature of 1.9 ℃, July flat