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Official Journal of the Japan Wood Research Society

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Fig. 1 | Journal of Wood Science

Fig. 1

From: Differences in β-thujaplicin content of wood between plantation- and naturally grown Thujopsis dolabrata var. hondae (hinokiasunaro) trees in Shimokita Peninsula, Aomori, Japan

Fig. 1

Relationships between acetone extractives or β-thujaplicin contents and annual ring width (ARW) or basic density (BD). Square, circle, and triangle indicate stands A, B, and P, respectively. Solid, dashed, and dotted and dashed lines indicate the regression lines of whole sample (n = 29), natural [combined data of stands A and B (n = 19)], and plantation stands [P (n = 10)], respectively. The “rp and rn” are the correlation coefficients of plantation [P (n = 10)] and natural [combined data of stands A and B (n = 19)] stands, respectively, all sampled trees (n = 29). **, *, and ns indicate that the correlation coefficients are significant (p < 0.01 and p < 0.05) and not significant (p > 0.05), respectively. Solid and dashed indicate the regression lines of plantation and natural stands, respectively

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