优良灌木树种的引种试验研究

Introduction on Trial of Fine Shrub Species

对引进灌木树种的物候期、生长规律、抗旱性、抗寒性进行研究,各树种之间差异较大,美国李、银水牛果、欧李,北美稠李生长表现良好,抗寒、抗旱性强,适宜在干旱半干旱地区发展;西部沙樱、针叶樱桃,当年生长表现较好,第2年春季有抽梢现象,抗寒性、抗旱性居中;美洲朴、毛核木当年新梢生长量大,第2年春季地上部分全部抽梢,抗旱性、抗寒性弱。

Study of phenophase,growth rhythm,drought resistance and cold tolerance of different introduced shrub species were conducted,which showed significant differences among them.American plum,Shepherdia argentea Nutt,cerasus humilis,choke cherry performed better in cold-tolerance and drought-resistance,suitable for growing in arid and semi-arid area.Prunus pumila L.var.besseyi Gleason and Acerola cherry performed good at the current year but have shooting growth in the next Spring,moderate in cold tolerance and ...