233个红松优树半同胞家系的生长性状变异研究

Variation Analysis on Growth Traits of 233 Half-sib Families of Pinus koraiensis Superior Trees

本研究以露水河林业局国家红松良种基地内8902区的233个优树的半同胞家系为材料,对其生长性状(树高、胸径和材积)进行调查分析。方差分析结果表明:3个生长性状在不同家系间均呈现极显著差异水平(P<0.01),相关分析结果显示树高、胸径、材积之间呈极显著正相关关系,利用综合评价法,以2%的入选率选出5个优良家系,并进一步在优良家系中以8%的入选率选出5个优良单株。

In this study,233 half-sib families of Pinus koraiensis superior tress in 8902 district of National P.koraiensis improved variety bases in Lushuihe Forestry Bureau were taken as materials,tree height,diameter at breast height and volumes were investigated and analyzed.The result of analysis of variance showed that all 3 growth traits were significantly different among different families(P<0.01),correlation analysis showed that there was an extremely significant positive correlation(P<0.01)among 3 growth traits,with the method of comprehensive evaluation,5 excellent families were selected with a selection rate of 2%,and 5 excellent individual plants were selected with a selection rate of 8%.