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“毛白杨多圃配套系列育苗新技术研究”是林业部“七五”至“八五”期间国家重点攻关研究专题之一。这一专题由我校承担,交由朱之悌教授主持负责。这一专题研究的主攻目标是解决毛白杨难于繁殖、育苗困难、繁殖系数不高、苗木质量低下、位置效应、成熟效应和苗木老化引起的病虫害等问题。这些问题一直困扰着我国毛白杨这一优良树种的种植推广。有鉴于此,林业部科技司将毛白杨的繁殖问题列入毛白杨良种选育大专题内,作为一项子专题交由北京林业大学负责。
“Populus multi-nursery supporting series of nursery new technology research ” is the Ministry of Forestry “75 ” to “85 ” during the national key research topic. This topic is borne by our school and handed over to Professor Zhu Zhizhi. The main objective of this project is to solve the problems such as difficult propagation, difficult seedling raising, low propagation coefficient, low seedling quality, location effect, maturity effect and diseases and pests caused by seedling aging. These problems have plagued the cultivation and popularization of this fine tree species of Populus tomentosa in China. In view of this, the Ministry of Forestry Department of Science and Technology Poplar Poplar breeding issues will be included in poplar breeding seedling topics, as a sub-topic by the Beijing Forestry University.