Wood clour of a speceis vary with locations to certain extent. I am keen to know what are the responsible factors for imaprting different colours in wood?
There are some publications from Sharad Kumar Baral that cover this subject. I encourage you to check out his work.
Since cellulose, hemicelluloses and lignin have the same color in all woods, wood color is generally related to the content of extractives. In hardwoods, it is closely related to climate.
For this reason, most Genres of trees with strong colors, like ebony (Diospyros), algarrobo (Prosopis), bubinga (Guibourtia), mahogany (Swietenia), wenge (Millettia), among others, come from warm climates.
Sapwood is generally pale white. Wood component that largely vary in colour is heartwood, which mostly depends on chemical deposits. Some hardwood trees (eg. maple, birch) do not have colored heartwood. However, we generally see dark coloured heartwood column in those trees which is defined as discoloured wood (some authors say false heartwood too). Colour as well as proportion of this discoloured wood in a tree stem found to vary among different sites. Studies found the effect of (1) climatic factor (temperature), (2) edaphic factor (base cations) and (3) biological factor (management history) on among site variation of discoloured wood proportion in trees. For detail: Baral et al. 2013, CJFR; Havreljuk et al. 2013, CJFR; Yanai et al. 2009, NJAF and Germain et al. 2015.
I thank Sharad Kumar Baral, Maria, Mariana, Eduardo for their keen interest to naswer my querries.
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