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Official Journal of the Japan Wood Research Society

Table 3 Regression equation of tracheid length

From: Influence of juvenile and mature wood on anatomical and chemical properties of early and late wood from Chinese fir plantation

Position Equation y = ab*ln(x + c)
  Plot KAI3 DABA8 KAI13 F24
Early wood a 2101.16 − 147.34 1634.38 1421.56
  b − 577.88 − 1193.40 − 700.51 − 684.92
  c − 1.52 1.67 − 1.30 − 0.28
  R2 0.99 0.98 0.99 0.97
Late wood a 2173.88 − 58.61 1842.55 1914.96
b − 550.32 − 1196.50 − 611.24 − 487.35
c − 1.4146 1.4183 − 1.4405 − 0.6470
R2 0.99 0.98 0.99 0.97