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Figure 3

Relationship between distance from the pith and L*, a*, b* (a, b, c) and relative reflectance (d) for heartwood and sapwood of Tectona grandis (N sapwood = 127 and N heartwood = 267).
Relationship between distance from the pith and L*, a*, b* (a, b, c) and relative reflectance (d) for heartwood and sapwood of Tectona grandis (N sapwood = 127 and N heartwood = 267).