马尾松高产脂种子园自由授粉子代生长性状选择

对设在福建省大田桃源国有林场的15年生马尾松高产脂初级种子园子代测定林进行生长性状调查分析,结果表明,生长性状在家系间差异均达极显著水平。生长性状家系遗传力0.5 360～0.5 427,单株遗传力0.1 816～0.2 501。以单株立木材积遗传增益为指标选择出4个马尾松高产脂速生家系和8株优良单株,生长性状选择效果显著。

Growth Selection of Open-pollinated Progenies of Resin Seed Orchard in Masson Pine

Investigation and analysis based on 15 years old progeny test stand which was established on Taoyuan national forest farm, showed that there were significant growth differences among families. Family heritahility of growth was 0.5 360 to 0.5 427, and individual heritability was 0.1 816 to 0.2 501.4 families and 8 individuals were selected＇ according to volume genetic gain.