Tracheid Length and Microfibril Angle of Young Taiwania Grown Under Different Thinning and Pruning Treatments

Chih-Ming Chiu, Cheng-Jung Lin, Song-Yung Wang


The effects of different thinning and pruning methods on the tracheid length and microfibril angle of young Taiwania (Taiwania cryptomerioides Hay) were investigated. No significant differences were found for tracheid length and microfibril angle among the three thinning and pruning treatments. The tracheid length increases outwards from the pith. The radial variation in microfibril angle is high near the pith, and declines gradually towards the cambium. The tracheid length values increase with decreasing microfibril angle.


Thinning;pruning;tracheid length;microfibril angle;Taiwania

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