【摘要】 以黑龙江省苇河林业局青山种子园的27个红松优树自由授粉子代为对象，测定其30a生时的生长性状。结果表明，树高、胸径和材积的平均变异系数分别为9.22%、17.75%和38%。生长性状遗传力受弱至中度遗传控制。以材积做选择目标，入选率为10%时，选出3个优良家树高、胸径、材积的遗传增益分别为11.30%、21.76%和56.32%。更多还原

【Abstract】 The free-pollinating progeny of 27 Pinus koraiensis Sieb. et Zucc. trees in Qingshan Seed Orchard of Weihe Forestry Bureau of Heilongjiang Province were taken as the object, and the growth characters of the 30-year-old trees were determined. The results showed that the average coefficients of variation of tree height, DBH and volume were 9.22%, 17.75% and 38% respectively. Growth trait heritability is under weak to moderate genetic control. Taking volume as the selection target, when the selection rate was 10%, three excellent families were selected. The genetic gains of tree height, DBH and volume were 11.30%, 21.76% and 56.32% respectively.更多还原