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Official Journal of the Japan Wood Research Society

Table 3 Correlation factors influencing density, shrinkage and mechanical properties of batai, ludai, mahang, and sesendok

From: Anatomical, physical, and mechanical properties of four pioneer species in Malaysia

Species

P

Density

T

R

L

MOR

MOE

C

S

Batai

FL

0.079 ns

− 0.701**

− 0.537**

− 0.231*

0.401**

0.332**

0.562**

0.266*

 

FD

0.229*

0.357**

0.019 ns

0.396**

0.109 ns

0.033 ns

0.091 ns

0.041 ns

 

FLD

− 0.429**

− 0.244*

− 0.361**

− 0.106 ns

− 0.008 ns

− 0.013 ns

− 0.640**

− 0.102 ns

 

CWT

0.385**

0.099 ns

0.227*

0.267*

0.342**

0.380**

0.440**

0.223*

 

VD

− 0.250*

0.100 ns

0.100 ns

0.217*

− 0.397**

− 0.332*

− 0.018 ns

− 0.288*

 

VF

0.029 ns

0.024 ns

0.430**

− 0.040 ns

− 0.088 ns

− 0.018 ns

− 0.093 ns

− 0.024 ns

 

Density

1

0.131*

0.317**

0.387**

0.253*

0.603**

0.262*

0.310**

Ludai

FL

0.680**

− 0.260*

− 0.016 ns

− 0.370**

0.259*

0.378**

0.333**

0.454**

 

FD

0.025 ns

0.083 ns

0.221*

0.478**

0.066 ns

0.401**

0.085 ns

0.551**

 

FLD

− 0.063 ns

− 0.081 ns

− 0.359**

− 0.037 ns

− 0.013 ns

− 0.108 ns

− 0.026 ns

− 0.404**

 

CWT

0.418**

0.067 ns

0.116*

0.801**

0.399**

0.336**

0.362**

0.380**

 

VD

− 0.221*

0.482**

0.066 ns

0.071 ns

− 0.195*

− 0.082 ns

− 0.262*

− 0.169*

 

VF

0.062 ns

0.052 ns

0.020 ns

− 0.559**

− 0.077 ns

− 0.078 ns

− 0.025 ns

− 0.017 ns

 

Density

1

0.243*

0.294*

0.153*

0.528**

0.550**

0.585**

0.721**

Mahang

FL

0.468**

− 0.221*

− 0.052 ns

− 0.370**

0.352**

0.258*

0.205*

0.242*

 

FD

0.325**

0.042 ns

0.108 ns

0.395**

0.092 ns

0.103 ns

0.106 ns

0.082 ns

 

FLD

− 0.080 ns

− 0.778**

− 0.763**

− 0.020 ns

− 0.043 ns

− 0.101 ns

− 0.287*

− 0.095 ns

 

CWT

0.504**

0.673**

0.784**

0.205*

0.211*

0.239*

0.373**

0.268*

 

VD

− 0.360**

0.558**

0.658**

0.034 ns

− 0.370**

− 0.138*

− 0.221*

− 0.146*

 

VF

0.060 ns

0.078 ns

0.069 ns

− 0.040 ns

− 0.103 ns

− 0.081 ns

− 0.257*

− 0.089 ns

 

Density

1

0.189*

0.204*

0.370**

0.330**

0.219*

0.576**

0.320**

Sesendok

FL

0.488**

− 0.213*

− 0.522**

− 0.379**

0.221*

0.234*

0.323**

0.198*

 

FD

0.035 ns

0.092 ns

0.106 ns

0.078 ns

0.043 ns

0.040 ns

0.060 ns

0.086 ns

 

FLD

− 0.027 ns

− 0.050 ns

− 0.015 ns

− 0.070 ns

− 0.022 ns

− 0.047 ns

− 0.032 ns

− 0.025 ns

 

CWT

0.413**

0.358**

0.344*

0.416**

0.212*

0.310**

0.322**

0.267*

 

VD

− 0.484**

0.072 ns

0.320*

0.057 ns

− 0.215*

− 0.197*

− 0.215*

− 0.106 ns

 

VF

0.077 ns

0.378*

0.400*

− 0.106 ns

− 0.010 ns

− 0.011 ns

− 0.026 ns

− 0.012 ns

 

Density

1

0.521**

0.335*

0.879**

0.770**

0.424**

0.353**

0.387**

  1. 25 readings were taken randomly for each species of batai, ludai, mahang, and sesendok for the anatomical properties measurements
  2. 90 specimens were used for each species of batai, ludai, mahang, and sesendok for physical and mechanical properties
  3. T tangential, R radial, L longitudinal, FL fibre length, FD fibre diameter, FLD fibre lumen diameter, CWT fibre wall thickness, VD vessel diameter, VF number of vessels per mm2, C compression parallel to grain, S shear parallel to grain, P properties
  4. * Significant at p ≤ 0.05, ** significant at p ≤ 0.01, ns not significant