Table 2.

Rank correlation coefficients (Spearman’s rho) of genotype mean concentrations of secondary metabolites in the senescent leaves and decomposed litter of Betula pendula (n = 19; ^∗P < 0.05, ^∗∗P < 0.01, ^∗∗∗P < 0.001; bold values denote statistically significant correlations).

	Epicuticular flavonoid aglycones	Epicuticular triterpenoids	Condensed tannins	Lignin
Senescent leaves
Intracellular phenolics	0.05	0.14	0.17	<0.01
Epicuticular flavonoid aglycones		0.75∗∗∗	-0.47∗	0.25
Epicuticular triterpenoids			-0.43	0.15
Condensed tannins				-0.51∗
Decomposed litter
Intracellular phenolics	-0.02	-0.05	0.15	-0.37
Epicuticular flavonoid aglycones		0.71∗∗	0.29	-0.13
Epicuticular triterpenoids			0.20	-0.25
Condensed tannins				-0.37