省林业厅受省科委的委托,于今年5月8日至9日在杨陵科研协调中心召开研究成果鉴定会,对省林科所杂交培育出的杨树新无性系—陕林3号杨和陕林4号杨进行了鉴定。陕林3号杨是从Ⅰ—69杨×美洲黑杨杂交无性系中筛选出来的,原试验编号52号。陕林4号杨是从Ⅰ—69杨×青杨(长安)杂交无性系中筛选出来的,原试验编号1062号。它们的 Provincial Forestry Department commissioned by the Provincial Science and Technology Commission, held May 8 this year to 9 in Yangling Research Coordination Center held a research appraisal will be cross-breeding of the Department of Forestry Branch of the new poplar clones - Shaanxi No. 3 Yang and Shaanxi Lin 4 Yang was identified. Shan-lin 3 was screened from Ⅰ-69 Yang × Populus × sibirica hybrid clones, the original test number 52. Yang-4 was selected from Ⅰ-69 × Qingyang (Chang’an) hybrid clones, the original test number 1062. their