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. 2014 Jan 27;9(1):e87582. doi: 10.1371/journal.pone.0087582

Figure 5. Principal component analysis of roots data set.

Figure 5

(A) loadings and (B) scores of the first two factors (PCs). Cd accumulation (Cd), Zn accumulation (Zn), MDA content (MDA), carbonyl content (carb), DNA damage (DNA) and activity of SOD, APX, PPX, GR and CAT represent variables. For explanation of treatments see Fig. 1.