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对全国红锥主要分布区17个种源的生长性状、干形性状及木材基本密度进行了测定,分析了不同产地红锥生长及干材的遗传变异情况。树高、胸径、单株材积、高径比、通直度、尖削度、枝下高、树皮厚度及木材基本密度在不同种源间均存在显著差异,而明显度和圆满度在种源间的差异不显著。性状变异系数幅度在3.0%～41.9%之间。依据多性状选择指数,初步筛选出41、33、15、32和11号这5个综合表现优良的种源。
The growth traits, stem traits and wood basic density of 17 provenances in the main distribution area of Red cone in China were measured. The growth of red cone and the genetic variation of dry material were analyzed. The tree height, DBH, single plant volume, height to diameter ratio, straightness, sharpness, branch height, bark thickness and wood basic density were significantly different among different provenances, while significant and fullness The difference between sources was not significant. Trait coefficient of variation ranged from 3.0% to 41.9%. According to the multi-trait selection index, five comprehensive provenances, such as 41, 33, 15, 32 and 11 were screened out.