State Key Laboratory of Tree Genetics and Breeding Forestry University 150040’s Republic of China;
Liaoning Academy of Forest Science 110032’s Republic of China;
State Administration of Forestry and Grassland Research Institute of Forestry Machinery 150086’s Republic of China;
Research Center of Cold Temperate Forestry 150086’s Republic of China;
Forestry Development and Service Center of Liaoning 110032’s Republic of China;
Southern Swedish Forest Research Centre University of Agricultural Sciences Box 49 Alnarp;