Biochemical Characterization of Seed Oil of Tunisian Sunflower (Helianthus annuus L.) Accessions with Special Reference to Its Fatty Acid Composition and Oil Content

Table 3

Eigenvectors, eigenvalues, total and cumulative variability of the first three principal components.

Principal components (axes)	PC1	PC2	PC3
Eigenvalues	2.104	1.551	1.415
Variability (%)	26.30	19.40	17.70
Cumulative (%)	26.30	45.70	63.40
Traits	Eigenvectors
Palmitic acid (C16 : 0) (%)	0.495	0.198	−0.664
Stearic acid (C18 : 0) (%)	0.607	0.168	−0.397
Oleic acid (C18 : 1) (%)	−0.120	0.816	0.098
Linoleic acid (C18 : 2) (%)	−0.881	−0.141	0.076
Arachidic acid (C20 : 0) (%)	0.578	0.036	0.625
Gadoleic acid (C20 : 1) (%)	0.345	−0.589	0.241
Behenic acid (C22 : 0) (%)	0.475	−0.280	0.267
Oil content (%)	0.146	0.609	0.529