Skip to main content
Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 3 Dynamic Young’s modulus of logs in eight half-sib families

From: Stress-wave velocity of trees and dynamic Young’s modulus of logs of 4-year-old Eucalyptus camaldulensis trees selected for pulpwood production in Thailand

Family

n

First log (GPa)

Second log (GPa)

Mean (GPa)

Mean

SD

Min

Max

Mean

SD

Min

Max

Mean

SD

Min

Max

60

4

10.30ab

1.20

9.27

11.91

11.96ab

1.65

10.76

14.28

11.13ab

1.33

10.14

13.09

71

4

9.73b

1.72

7.88

11.56

11.12b

2.89

8.00

14.99

10.43b

2.25

7.94

13.28

163

4

10.99ab

1.07

9.85

12.34

12.62ab

1.21

11.09

14.03

11.80ab

0.90

10.47

12.43

208

5

10.13b

1.14

8.20

11.22

11.47b

1.34

9.68

13.25

10.80b

1.21

8.94

12.23

219

5

13.56a

1.80

10.90

15.94

15.47a

1.89

13.15

17.64

14.52a

1.71

12.03

16.26

227

5

11.22ab

1.42

9.87

13.12

12.33ab

2.05

9.53

15.04

11.77ab

1.67

9.70

14.08

236

4

11.99ab

1.59

10.49

13.75

12.49ab

1.47

10.49

13.63

12.24ab

1.48

10.49

13.69

996

4

10.90ab

1.76

8.35

12.33

11.76ab

1.72

10.02

14.03

11.33ab

1.53

9.66

13.18

Total

35

11.10

1.81

7.88

15.94

12.35

2.17

8.00

17.64

11.72

1.89

7.94

16.26

  1. The same alphabet letters followed by mean value indicate no significance at 5 % level according to the Tukey HSD test. The first and second logs were harvested from 1.3 to 3.3 m and from 3.3 to 5.3 m above ground level, respectively
  2. n number of sample, SD standard deviation, Min minimum, Max maximum
Back to article page