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杨树因其生长迅速,易于营林以及在遗传上的潜势,而得到广泛发展。目前,世界上无论发达或发展中国家都把扩大杨树栽培面积作为解决木材及木材纤维短缺的重要途径。我国林学工作者,在全面系统研究本地杨的同时,又大量地引进国外杨树品系,籍以弥补经济发展之急需。 优良无性系除表现为优良的生长习性外,更为重要的是保持优良的材质遗传特性。本项试验的目的是,通过测试比较三种无性系杨树的解剖特征、胶质纤维含量
Poplar has been widely developed for its rapid growth, its easy silviculture and its genetic potential. At present, both the developed and developing countries in the world regard increasing poplar cultivation area as an important way to solve the shortage of wood and wood fiber. While studying the local poplar species systematically and systematically, our country’s forestry workers have introduced a large number of foreign poplar species to make up for the urgent need of economic development. In addition to the fine clones show excellent growth habits, more important is to maintain good genetic material properties. The purpose of this experiment is to compare the anatomical characteristics of three poplar poplar species by testing, glial fiber content