Different abbreviations used in this figure are as follow: LFW (leaves fresh weight), Fe-R (Fe contents in roots), MDA-R (MDA contents in roots), CR-R (Cr contents in roots), H2O2-R (H2O2 initiation in roots), H2O2-L (H2O2 initiation in leaves), MDA-L (MDA contents in leaves), EL-L (electrolyte leakage in leaves), EL-R (electrolyte leakage in roots), CR-S (Cr contents in leaves), RFW (root fresh weight), RDW (root dry weight), Fe-S (Fe contents in shoots), SOD-L (SOD activity in leaves), POD-L (POD activity in leaves), SOD-R (SOD activity in roots), Zn-R (Zn contents in roots), POD-R (POD activity in roots), Zn-S (Zn contents in shoots), LA (leaf area), Chl (total chlorophyll contents), PH (plant height), RL (root length), NP (net photosynthesis), CAT-R (CAT activity in roots), CAT-L (CAT activity in leaves), APX-R (APX activity in roots), TR (transpiration rate), SC (stomatal conductance), WUE (water use efficiency), NOL (number of leaves), Carot (carotenoid contents), APX-L (APX activity in leaves).