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Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 2 Statistical values and broad-sense heritability of measured traits

From: Radial variations of broad-sense heritability in wood properties and classification of load–deflection curves in static bending for six half-sib families of Chamaecyparis obtusa

Trait

Mean

(n = 18)

SD

(n = 18)

Min

Max

H2

Stem diameter (cm)

20.0

2.0

18.5 (S)

21.1 (M5)

–

Tree height (m)

11.1

2.5

9.3 (S)

12.6 (M5)

–

SWV (km/s)

3.41

0.24

3.09 (H2)

3.60 (S2)

–

ARW (mm)

2.8

0.3

2.5 (S)

3.0 (M5)

0.02

TL (mm)

2.20

0.10

2.10 (S)

2.32 (T2)

0.39

MFA (degree)

17.8

3.1

14.8 (S2)

22.7 (H2)

0.48

BD (g/cm3)

0.404

0.017

0.391 (T2)

0.414 (S)

0.00

AD (g/cm3)

0.474

0.025

0.450 (T2)

0.507 (M5)

0.21

MOE (GPa)

7.42

1.04

5.89 (H2)

8.24 (S2)

0.50

MOR (MPa)

80.8

6.9

73.4 (H2)

86.5 (S)

0.18

W (N m)

9.15

1.82

7.53 (K4)

11.25 (S)

0.47

CS (MPa)

39.3

3.2

34.8 (H2)

41.0 (M5)

0.20

  1. SD standard deviation, Min. minimum family mean, Max. maximum family mean, H2 broad-sense heritability, n number of trees, SWV stress-wave velocity, ARW annual ring width, TL tracheid length, MFA microfibril angle, BD basic density, AD air-dry density, MOE modulus of elasticity, MOR modulus of rupture, W bending work, CS compressive strength
  2. The characters in parentheses indicate Family ID showing minimum or maximum mean values
  3. The values of H2 for stem diameter, tree height, and stress-wave velocity are listed in Table 1
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