Wavy grain (fiddle back) is characterized by an undulating tissue pattern. The resulting alternating light and dark streaking of the wood is considered particularly aesthetic and is highly valued for the manufacture of musical instruments and high-quality furniture. Trees with this feature therefore fetch higher prices than regular assortments. Since the causes of this particular structural attribute in trees are still unclear, this study investigates the suitability of transmitted light microscopy and microcomputed tomography (μCT) for identifying wavy grain in the bark and the underlying wood.
It was found that the mere examination of the bark tissue is not sufficient for classification. The use of µCT, on the other hand, shows great potential, especially for a low-destructive/non-destructive examination of the valuable material.
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Link to the Thünen Project: High value timbers
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