Fig. 3

Effect of different doses of SeNPs and Na₂SeO₃ (0, 50, 100 and 150 µmol/L) on a chlorophyll a (µg/g); b chlorophyll b (µg/g); c total chlorophyll (µg/g); d carotenoids (µg/g); e total soluble sugar (mg/g); f total protein (µg); g proline % and h MDA (µmol/g) contents on rapeseed seedlings. Bars represent ± SE of three replicates. The different letters indicate significant differences at P < 0.05 using Duncan's multiple range tests