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Official Journal of the Japan Wood Research Society

Table 2 Presence of G-layer, basic density, vessel frequency, and lignin content on the upper and lower sides of samples

From: Relationships between tree size and reaction wood formation in 23 Japanese angiosperms

Tree sizes

Codes

G-layer

Basic density (g/cm3)

Vessel frequency (No./mm2)

Lignin content (%)

UP

LP

UP/LP

UP

LP

UP/LP

UP

LP

UP/LP

Arbor

Ar-1

0.59

0.54

1.08

94

178

0.53

21.8

28.7

0.76

Ar-2

+

0.42

0.42

1.00

58

139

0.42

22.4

30.2

0.74

Ar-3

0.59

0.58

1.01

63

96

0.66

24.2

26.4

0.92

Ar-4

+

0.58

0.55

1.07

37

71

0.52

20.2

31.3

0.64

Ar-5

+

0.62

0.63

0.98

15

81

0.19

20.3

28.7

0.71

Ar-6

0.51

0.45

1.13

124

138

0.90

24.1

27.2

0.89

Ar-7

+

0.50

0.54

0.94

163

229

0.71

23.7

26.7

0.89

Mean

   

1.03

  

0.56

  

0.79

Subarbor

Su-1

+

0.60

0.54

1.12

204

323

0.63

21.6

31.1

0.69

Su-2

0.61

0.59

1.03

198

355

0.56

29.4

30.0

0.98

Su-3

0.72

0.72

1.00

167

233

0.72

23.8

26.0

0.92

Su-4

0.53

0.54

1.00

146

351

0.42

23.1

24.9

0.93

Su-5

0.47

0.45

1.04

69

135

0.51

23.4

27.3

0.86

Su-6

0.48

0.49

0.97

27

48

0.56

25.6

28.1

0.91

Su-7

0.64

0.62

1.03

96

127

0.75

25.4

30.0

0.85

Mean

   

1.03

  

0.59

  

0.88

Shrub

Sh-1

0.50

0.55

0.91

110

120

0.92

38.2

37.9

1.01

Sh-2

+

0.56

0.59

0.95

279

255

1.09

20.5

26.3

0.78

Sh-3

0.44

0.46

0.95

101

107

0.94

20.2

26.3

0.77

Sh-4

0.62

0.65

0.96

366

398

0.92

33.8

30.4

1.11

Sh-5

+

0.52

0.54

0.97

45

35

1.28

21.8

24.4

0.89

Sh-6

0.61

0.53

1.15

228

266

0.86

26.3

31.9

0.82

Sh-7

0.58

0.59

0.97

307

348

0.88

36.0

34.8

1.03

Sh-8

0.49

0.50

0.99

316

518

0.61

36.6

37.7

0.97

Sh-9

0.50

0.45

1.13

489

526

0.93

26.2

32.3

0.81

Mean

   

1.00

  

0.94

  

0.91

  1. Code refers to Table 1; Ar, arbor; Su, subarbor; Sh, shrub; LP, lower side; UP, upper side; “+” and “−” in G-layer indicate presence and absence of G-layer, respectively