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报道了火炬松种源试验林（１０年生）木材主要化学成分含量的变异。方差分析表明火炬松种源间纤维素、木质素含量无显著性差异，戊聚糖、苯－醇抽出物含量则差异显著；木材主要化学成分含量广义遗传力较低，种源内株间木材化学成分含量变异大于种源间的差异。纤维素、木质素、苯－醇抽出物、戊聚糖含量与种源原产地地理气象因子间相关性不显著。生长速度对木材化学成分含量没有显著的的影响。在火炬松引种栽培时可以不考虑地理气象因子、生长速度对木材化学成分含量的影响
This paper reports the variation of the main chemical components in the wood of Pinus taeda seed germination test (10 years old). Variance analysis showed that there was no significant difference in the content of cellulose and lignin between seed sources of Pinus taeda, but the content of pentosan and benzene-alcohol extractives was significantly different. The main heritable components of wood were lower in heritability, Variation in composition is greater than the difference between provenances. There was no significant correlation between cellulose content, lignin, benzene-alcohol extract and pentosan content and geographical and meteorological factors of provenance. The growth rate has no significant effect on the chemical composition of wood. In the introduction and cultivation of Pinus taeda can not consider the geographical meteorological factors, the impact of growth rate on the chemical composition of wood