北美豆梨引种试验

Introduction experiment on Pyrus calleryana to Shandong Province

引进北美豆梨优良品种6个,通过多年栽培试验,对其生物学特性、物候期、生长量、抗寒抗病性进行了研究。结果表明:引进品种均能适应引种地的环境条件,正常生长,其中‘贵族’、‘新布拉德福’、‘首都’3个品种表现突出,在观赏性、生长势、抗寒抗病性等方面都优于其他3个品种,是不可多得的观花、观果、观叶的优质绿化树种,可广泛应用于公园、休闲绿地、小区庭院、道路和风景区的绿化美化。

Six cuhivars of Pyrus calleryana were introduced to Shandong, the biological characteristics, phenology, growth, cold resistance and disease resistance were studied by means of observation and investigation for many years. The results showed that they could well adapt to the environment of introduction and grew normally. The ornamental characteristics, growth vigor, cold and disease resistances of ＇ Aristocrat＇ , ＇ New Bradford＇ and ＇ Capital＇ was better than those of the oth- er three varieties. They were superior greening tree species with flowers, fruits, leaves, and could be widely used in parks, green space, gardens, roads and scenic areas.