【摘要】 对大青杨、香杨种源选择和种源间交配进行了研究。通过苗期测定、成树评比、冻害、虫害、形质指标PCA和聚类分析,综合选出了30＃（大带×大奋）、94＃（香虎×香奋）、60＃（香奋×香带）等优良组合,材积生长超过对照种131．61％～107．87％,选出60-1、61-1、60-2、60-4、94-1、30-1、30-2、30－4、30-5、30-6等无性系．生长量与对照差异达显著水平。该项研究对大青杨、香杨遗传改良提供了一条新的途径。更多还原

【Abstract】 The provenances slection and mate among provenances of Populus ussuriensis and P. koreana were studied. By means of investigation in seedling stage,mature tree appraisal,frost,insect pest,timber index PCA and cluster analysis,fine combinations such as 30#,94#,60# were chosen out,whose growth of volume exceeded contrast by 131.61%～107. 87%. Several clones were also picked out. and the difference between the clones and the contrast reached significant level. This research provides a new way of genetic improvement for Populus ussuriensis and P. koreana.更多还原