黑龙江省位于我国最北部,地处北纬43～53度高寒地带.长期以来,由于缺少适于我省栽培的梨抗寒优良品种,一直到现在梨树栽培面积只占果树总面积的7%左右.多年来市场上梨果供应完全依靠外省. 培育出适宜我省栽培的梨树抗寒优良品种是促进我省梨树生产发展的一个重要关 Heilongjiang Province is located in the northernmost part of China and is located in the alpine region of latitude 43 ~ 53 degrees north latitude.For a long time, due to the lack of good varieties of hard-cold pear suitable for cultivation in our province, pear cultivated area now accounts for only about 7% of the total area of ​​fruit trees Over the years the market supply of pear fruit entirely dependent on the provinces to cultivate a suitable pear cultivation in our province cold good varieties is to promote the development of pear production in our province is an important off