辽北地区杨树新无性系的生长与抗寒性

Study on Growing and Cold Resistance Poplar Clones in North Liaoning

杨树速生品种在辽北地区栽培往往出现冻害而影响生长,通过对辽北实验基地选育出的无性系生长和抗寒性的研究以及与当地主栽品种的比较,结果表明无性系的生长与抗寒性在无性系间存在着显著差异,从中选出4个较速生抗寒的无性系9207(Populus Liaohenica×xiaozhuanica’anzha’)、9205(Populus Liaohenica×P.euramericanacv.’N3930’)、9318(P.Liaoningensis×sp)、9317(P.Liaoningensis×sp)其高生长和抗寒性都高于亲本,有望取代当地主栽品种成为辽北地区新的速生杨树品种。

Fast-growing poplar which were planted in north Liaoning province appeared freezing injury and Influenced it＇s growing. Through study on growing and cold resistance poplar clones which were selcted and breeded in breeding field and compared with control species in north Liaoning province, the results show that growing and cold resistance are remarkable difference among these clones. Four clones namely 9205, 9207, 9318, and 9317, notable in fast growing and resistance to cold, were picked out through numerous seeding selections. These four clones owned more outstanding high growth and cold resistance than their parents and they can be expected to be cultivated in further in the north of Liaoning province.