1. State Key Laboratory of Tree Genetics and Breeding Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration, Research Institute of Forestry Chinese Academy of Forestry Beijing 100091 China
2. National Forestry and Grassland Innovation Alliance on Hazelnut Beijing 100091 China
3. Hazelnut Engineering and Technical Research Center of the State Forestry and Grassland Administration Beijing 100091 China
4. Institute of Forest Ecology Environment and Protection Chinese Academy of Forestry Beijing 100091 China