Principal component analysis (PCA) was performed in order
to determine the relationship between the three coriander
varieties on the basis of their percentages of phenolic composition.
A better discrimination was revealed on the threedimensional
visualization of the plotted scores, where the three
PC accounted for 29.98% of total variance. As can be seen in
Fig. 1, Egyptian and Syrian varieties were grouped together.
Tunisian variety was clearly distinguished from this group.
So, this fact could be due to the near environmental conditions
in Syria and Egypt, Tunisia ones where so far.