Radial distribution of quinones in plantation teak (Tectona grandis L.f.) | Annals of Forest Science

EDPS Account

Volume 66 / No 6 (September 2009)

Ann. For. Sci., 66 6 (2009) 605

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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.