Table 2. Two way ANOVA of extractive content in Acacia hybrid

Source of variation	df	n-Hexane	Methanol	Hot water
Radial (R)	1	**	ns	ns
Axial (A)	2	ns	ns	ns
R × A	2	*	ns	ns
Error	12
Total	17

p < 0.05,
p < 0.01.
ANOVA: analysis of variance, df: degrees of freedom, ns: not significant at 5% level.