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对20世纪末新引进到辽宁并经初选的12个杨树无性系进行了引种试验研究,通过无性系多点生长对比试验、室内外物候观测、对杨干象抗性评价和材性测试等,筛选出生长快、适应强的杨树新品种中辽1号杨,其材积生长量分别超过当地对照种辽宁杨、沙兰杨、荷兰3930杨和I-214杨14.8%~68.1%。其生长进程中高生长最快期是在5~6年生,连年生长量最大数值达到3.6 m;胸径生长最快期是在3~5年生,连年生长量最大数值达到6.34 cm。而且干型好、材质优良,对杨干象有相对较强的抗性,可作为新品种在其适生区大面积推广。
Introduced 12 new clones of poplar introduced to Liaoning at the end of the 20th century were introduced and studied. Through clonal multi-point growth contrast test, indoor and outdoor phenological observation, resistance evaluation and material property test, The poplar new variety Zhongliao No. 1 with faster growth and adapting capacity surpassed that of the local control such as Liaoning Yang, Sallam, the Dutch 3930 Yang and I-214 Yang respectively by 14.8% -68.1%. The fastest growing period of its growth is from 5 to 6 years old, with annual maximum growth reaching 3.6 m. The fastest DBH growth is from 3 to 5 years. The maximum annual growth is 6.34 cm. And good dry, good material, the Yang dry like a relatively strong resistance, as a new breed in its suitable area for large-scale promotion.