Bar growth
Bar growth is a growth anomaly in the wood of certain tree species.
The phenomenon occurs mainly in maple wood , but also in other hardwoods such as walnut , ash , oak and types of whitebeam . In longitudinally cut wood while a strip-shaped cross pattern is to detect which of a wave-shaped fiber is caused extending the wood. The reason for this has not yet been clarified. There are indications of a certain recessive inheritance of the trait. The tree location and other environmental influences could contribute as factors.
Bar growth is rare. In the case of the maple, around three percent of the trees are affected. In France, a proportion between two and five percent was found. A lock cannot be seen on the living tree. Indications of this can possibly be obtained by punching out. Even if the trunk has been felled, there may be difficulties in recognizing it, since often not the whole trunk is affected, but only parts of it.
Due to the rarity and the good usability of such wood, it is much more expensive than wood without this phenomenon. In 2012, a veneer wood company paid over 61,000 euros for an 8.5 m long flamed maple trunk with a volume of 4.5 m³ and thus gave rise to speculation about “possibly the most expensive tree in Europe”. In addition to veneers , high-quality furniture and musical instruments are made from figured maple wood. It is well suited as tonewood in instrument making and has been used for centuries.
Web links
- Gisela Naujoks and others: Status and perspectives of research on the Flamed Maple Article in AFZ - Der Wald, issue 5/2013; PDF document, 230 kB
Individual evidence
- ^ W. Kausch-Blecken von Schmeling: Gerriegeles Elsbeerholz . Corminaria, 2002, Volume 18, pp. 3-7.
- ↑ Gisela Naujoks, Dietrich Ewald, Andreas Meier-Dinkel, Michael Wallbraun: Status and perspectives of research on the Flamed Maple Article in AFZ - Der Wald, issue 5/2013
- ^ R. Rohr, D. Hanus: Vegetative propagation of wavy grain sycamore maple . Canadian Journal of Forest research, 1987, Vol. 17, pp. 418-420.
- ↑ The possibly most expensive tree in Europe Article in the Main-Post, online version from April 19, 2012