方差分析表明，种群间导管比量差异显著，木射线比量和纤维比量差异不显著。
Variance analysis showed that the fiber and xylem ray proportion among populations were insignificant, but the vessel-elements proportion varied greatly.
化石木木材由导管、木纤维、木射线组成。
方差分析表明，种群间导管比量差异显著，木射线比量和纤维比量差异不显著。
The radial change of the small tensile strength of the wood was also like that of fiber length, without distinct differences among populations.
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