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Official Journal of the Japan Wood Research Society

Journal of Wood Science Cover Image

Table 5 The significance of the effect of individual factors on changes in b* value

From: Impact of thermal modification on color and chemical changes of spruce and oak wood

Monitored factor Sum of squares Degree of freedom Variance Fisher’s
F test
Significance level p
Absolute term 29,080.48 1 29,080.48 21251.79 ***
Wood species “WS” 1175.91 1 1175.91 859.35 ***
Thermal modification “TM” 1942.05 3 647.35 473.08 ***
WS × TM 444.39 3 148.13 108.25 ***
Error 98.52 72 1.37   
  1. NS not significant
  2. ***Significant, p < 0.005