杨树新无性系木材物理力学性质的研究

Study on physical and mechanical properties of new clones of poplar

研究了 7个杨树新无性系和I 69杨的木材物理力学性质。结果表明 ,杨木新无性系的物理力学性质等主要指标均属于小至甚小级 ,无性系间物理力学性质差异显著 ,据此可用木材物理力学性质因子选育优良无性系。尽管新无性系的生长速度超过I 69杨 ,但由于其某些强度指标低于I 69杨 ,8年生的速生材尚不能完全替代 11年生的I 69杨使用 。

This paper deals with the physical and mechanical wood properties of new clones of poplar.The results showed the physical and mechanical properties were small degree,the great differences of the physical and mechanical properties of the clones can be taken as scientific foundation for selection of fine clones.