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Table IV

Pearson’s correlation coefficients between natural termite resistance parameters and extractive component contents.

Extractive content Natural termite resistance

Survival rate in Survival rate Mass loss
the first week in the second week
Desoxylapachol –0.19 –0.19 –0.25
Lapachol –0.18 –0.16 –0.25
Isodesoxylapachol –0.38** –0.33* –0.47**
Tectoquinone –0.46** –0.35** –0.49**
Total quinone –0.38** –0.33* –0.47**
**

Significant at the 1% level;

*

significant at the 5% level.