【摘要】 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。更多还原

【Abstract】 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 drought-resistance.Hackberry and Symphoricarpos Duham have great shootings at the current year and all generate shoots the next Spring,indicating low in cold tolerance and drought resistance.更多还原