State Key Laboratory of Tree Genetics and Breeding;
School of Forestry;
Northeast Forestry University;
Harbin 150040;
People's Republic of China;
Forestry Department of Jilin Province;
Tree Seedling Management Station;
Changchun 130000;
People's Republic of China;
Wudaogou Forestry Center of Liuhe County;
Tonghua 135300;
People's Republic of China;
State Key Laboratory of Forest Genetics and Tree Breeding Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration Research Institute of Forestry;
Chinese Academy of Forestry Beijing;
Beijing 100091;
People's Republic of China;