Studies on Establishing Techniques of the Multi Generation Clone-orchards of Pinus tabulaeformis
Liu Y · Xibei Linxueyuan xuebao · 2005
Based on establishment of primary orchard of Chinese pine(Pinus tabulaeformis), material-selecting criterion of the second generation orchards was determined. 36 excellent families were selected by means of half-sib progeny test on 142 families belonging to 3 groups of materials. Furthermore, 263 plus tree were selected from 36 families, and their average height, dbh and tmber volume increased by 27.2%, 41.1% and 125.9% respectively, their expecting genetic gains in the average height, dbh and timber volume were 13.3%, 11.7% and 37.2% respectively. The establishing techniques of the second generation clone-orchards are proposed.