Fig 1. Effects of different treatments of 5-aminolevulinic acid (ALA) (mg/L) and cadmium (Cd2+) (μM) on (A) osmotic potential (MPa), (B) relative water contents (%), (C) soluble sugar contents (mg g-1 FW), (D) free amino acid contents (mg g-1 FW) and (E) proline contents (mg g-1 FW) in the leaves of Brassica napus cv. ZS758.
Values are the means ± SD of three replications. Variants possessing the same letter are not statistically significant at P < 0.05.