【摘要】 以长白山森工集团有限公司汪清林业分公司红松种子园子代测定林的68个半同胞家系为试材,测定其树高、胸径、保存率和结实量.结果表明:不同家系间树高和结实量的差异极显著;家系间各性状的遗传力变化范围为0. 088 4～0. 767 8;树高与胸径和保存率分别呈极显著和显著正相关;采用主成分分析法选择50,112,107和95号家系为优良家系.研究结果可为红松家系评价及种子园升级改建提供参考和依据.更多还原

【Abstract】 With 68 half-sib families in Pinus koraiensis seed orchard of Wangqing Forestry Branch,we tested the height,diameter at breast height,preservation rate and fruit yield in different families. There was extremely significant family different for height and fruit yield,and the heritability of different traits varied from 0. 088 4 to0. 767 8. The positive correlation between height and diameter at breast height was extremely significant,and the positive correlation between height and fruit yield was significant. Based on the results of principal component analysis,50,112,107 and 95 were identified as the superior families. These results can provide a theoretical basis for family evaluation and seed orchard reconstruction in Pinus koraiensis.更多还原