由中国林科院林研所等单位承担的部级重点项目“毛白杨优良无性系选育研究”和国家攻关四级课题“刺槐优良次生种源和优良无性系品种选育”,已于1988年9月26—27日,受林业部科技司和河北省科委的委托,在中国林科院和河北省邯郸地区科委共同主持下,通过了成果鉴定。 By the Chinese Academy of Forestry Lin research institutes and other units at the ministerial-level key projects, “Populus clone cloning research” and the national research topic four “excellent secondary source and excellent clones of black locust breeding” has been From September 26 to September 27, 1988, commissioned by the Science and Technology Department of the Ministry of Forestry and Hebei Science and Technology Commission, the results were appraised with the co-sponsorship of the Chinese Academy of Forestry and the Handan Regional Science and Technology Commission of Hebei Province.