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Changes in: (A) Chlorophyll a (Chl a; mg g-1 FW); (B) Chlorophyll b (Chl b; mg g-1 FW); (C) Carotenoide (Car; mg g-1 FW); (D) Chlorophyll a + Chlorophyll b (Chl a +b mg g-1 FW). Treatments: C: control (0 g/L PEG 6000); PEG50 (50 g/L PEG 6000). Differences between values of the same traits that are labeled with the same letter are not statistically significant (p>0.05). Error bars represent standard error (± SE).
