Morphological Variation and Ecological Structure of Iroko (Milicia excelsa Welw. C.C. Berg) Populations across Different Biogeographical Zones in Benin

Table 2

Results from principal component analysis (PCA) of morphometric traits.

	Axis1		Axis2
	Coefficient	Loading	Coefficient	Loading
DBH/TH	−0.0047	0.2704	−0.0043	−0.1628
DBH/BH	−0.0015	0.2206	0.0015	0.1508
DBH/CD	−0.0002	−0.0579	0.0001	0.0203
LL	0.8943	0.9900	0.1142	0.0828
LW	0.4346	0.8927	−0.0250	−0.0337
MFL	0.0006	0.0163	−0.0090	−0.1700
MFW	0.0776	0.1209	0.9683	0.9882
FFL	0.0709	0.2380	0.2165	0.4759
FFW	0.0196	0.1849	−0.0422	0.2608
eigenvalue	9.551		27.387
%variance	63.841		4.097

Diameter at breast height (DBH), total height (TH), bole height (BH), crown diameter (CD), leaf length (LL), leaf width (LW), male flowers length (MFL), male flower width (MFW), female flowers length (FFL), and female flower width (FFW).