1 三倍体毛白杨新品种选育背景及当前产业化进展我国森林资源匮乏,木材短缺。1998年以来,每年进口纸和木材近100亿美元,相当于每年建一个长江三峡的投资,耗费实在惊人。1980年初,林业部和国家科委将解决木浆原料列入国家科技攻关,其中毛白杨专题交由北京林业大学朱之悌教授负责。朱之悌和他的弟子们经15年努力,针对毛白杨树种特性,采用染色体部分替换和染色体加倍技术,将传统38根染 A triploid new white poplar breeding background and the current industrialization progress China’s scarcity of forest resources, timber shortage. Since 1998, nearly 10 billion U.S. dollars of paper and timber have been imported each year, which is equivalent to an annual investment in the Three Gorges of the Yangtze River. The cost is staggering. Early 1980, the Ministry of Forestry and the State Science and Technology Commission will address the issue of wood pulp into the national scientific and technological research, including the topic of Poplar by Beijing Forestry University Professor Zhu Zhizhi responsible. Zhu Zhizhi and his disciples after 15 years of hard work, against poplar tree species characteristics, the use of chromosome replacement and chromosome doubling techniques, the traditional 38 dyed