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Official Journal of the Japan Wood Research Society

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Table 2 Coefficients of correlations between growth traits and amount of phytohormones

From: Seasonal variations of tracheid formation and amount of auxin (IAA) and gibberellin A4 (GA4) in cambial-region tissues of mature sugi (Cryptomeria japonica) cultivar grown in a Nelder plot with different tree densities

  Amount of IAA Amount of GA4
June August October December June August October December
H 0.38 0.07 0.62* −0.07 −0.31 0.06 −0.26 0.36
DBH 0.69** 0.39 0.64* −0.29 −0.05 0.17 0.05 0.37
H/D ratio −0.83** −0.55* −0.70** 0.15 −0.11 −0.20 −0.34 −0.44
CL 0.74** 0.54* 0.57* −0.40 −0.12 0.29 0.26 0.36
HCB −0.70** −0.70** −0.23 0.51 −0.09 −0.36 −0.61* −0.11
  1. Coefficient of correlations were obtained from 15 sample trees. H, DBH, H/D ratio, and HCB were the same, as shown in Table 1
  2. CL crown length
  3. **p < 0.01, *p < 0.05