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Official Journal of the Japan Wood Research Society

Table 1 Heartwood percentage (HWP) on the transverse face of the timber and moisture content of the green and kiln-dried timber (MCGT, MCDT)

From: Internal-check variation in boxed-heart square timber of sugi (Cryptomeria japonica) cultivars dried by high-temperature kiln drying

Cultivar

Sample

N

H (m)

HWP (%)

MCGT (%)

MCDT (%)

Mean

SD

Mean

SD

Mean

SD

Yabukuguri

Y1

10

1.5–3.5

100

0.0

58.1

12.9

7.4

2.3

Y4

10

6.1–8.1

99.8

0.7

40.4

6.6

6.4

1.7

Kumotooshi

K1

10

1.5–3.5

100

0.0

110.0

31.6

6.0

2.2

K4

10

6.1–8.1

87.6

15.6

66.3

10.1

9.1

1.5

  1. N number of boxed-heart square timbers, H height above the ground of the timber source, SD standard deviation