近几年来，湖南靖州市科技信息研究所果树实验基地通过引种试种从全国梨品种资源中筛选出几个有推广价值的极早熟（７月以前成熟）和极晚熟（１０月以后成熟）品种，现简介如下。 七月酥果实卵圆形，大且整齐，平均单果重２３０ｇ；果皮薄而光滑洁净，黄绿色；向白质细，后期纯 In recent years, Jingzhou City, Hunan Science and Technology Information Institute fruit tree experimental base through the introduction of seed trials from the national varieties of pear resources to screen out a few Promote the value of very premature (pre-July) and very late ripe (mature after October) Varieties, are briefings are as follows. July juicy fruit oval, large and tidy, the average weight of 230g; peel thin and smooth and clean, yellow-green; to fine white, late pure