Comparison of genetic impact on growth and wood traits between seedlings and clones from the same plus trees of Pinus koraiensis

Abstract To evaluate the relationships among clones and open pollinated families from same plus trees to select elite breeding materials, growth, wood characteristics of 33-year-old Pinus koraiensis were measured analyzed. The results show that growth characters varied significantly. variation due clonal effects was higher than family effects. ratio genetic phenotypic coefficient in traits above 90%, repeatability these more 0.8, whereas 90%. broad-sense heritability all exceeded 0.4, narrow-sense less 0.3. Growth positively correlated with each other, but most properties weakly both families. Fiber length width between Using membership function method, eleven four selected as superior material for improved diameter production, two open-pollinated showed consistently better performance. Generally, selection best is an effective alternative deployment estimates provide valuable insight improving P. programs subsequent improvement.