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Projection of the two main components (PC1 63.95% and PC2 28.17%). Treatments with higher elongations and root weights segregate toward the quadrant (x, y). Treatments with a high antioxidant response, which distances them from control in the absence of Hg, segregate toward the (x, –y) quadrant. Treatments close to control without Hg are grouped in the (–x, –y) quadrant.
