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Official Journal of the Japan Wood Research Society

Table 3 Ratio of tracheids with unusually large MFA in the ring number 22 among tree-density-zoning symbols

From: Wood density and microfibril angle from pith to bark of a sugi cultivar (Cryptomeria japonica, Japanese cedar, Tosaaka) grown in a Nelder plot

Symbol

Density (trees/ha)

Age

n

≥ 30°

≥ 35°

(%)

D

4823

38

5

24 (8)a

10 (6)a

E

3349

38

5

38 (11)a

15 (7)a

G

1615

38

5

33 (14)a

12 (10)a

H

1122

38

5

33 (14)a

11 (4)a

J

541

38

5

31 (12)a

11 (5)a

  1. The values represent averages in four trees; values in parentheses indicate standard deviations. Total number of measured trachieds were one hundred twenty in each tree (Fig. 9). Different characters show significant differences among density-zoning symbols (p < 0.05)
  2. Symbol initial tree density zoning symbol, Density initial tree density, n number of sample trees