Wood colour variation in sapwood and heartwood of young trees of Tectona grandis and its relationship with plantation characteristics, site, and decay resistance

Free Access

Table IV

Pearson correlation coefficients for the relationship among sampled plantation characteristics of Tectona grandis in Costa Rica (N = 69).

Plantation characteristics	Tree age	Tree height	DBH	Growth rate	Plantation density	Cluster
Tree age	1
Tree height	0.67^**	1
DBH	0.56^*	0.85^**	1
Growth rate	–0.80^**	–0.18^ns	0.02^ns	1
Plantation density	–0.66^**	–0.55^*	–0.45^*	0.45^*	1
Cluster	0.18^ns	0.25^ns	0.32^ns	–0.02^ns	0.24^ns	1

^**

Statistically significant at 99% confidence level;

statistically significant at 95% confidence level;

^ns

not significantly different.