Table 4. Effect of Ca on total protein content and proline content in leaves of mustard plants under Cd stress.
| Treatments | Total protein content(mg g−l FW) | Proline content(μg g−l FW) | ||||
|---|---|---|---|---|---|---|
| 30DAT | 60DAT | 90DAT | 30DAT | 60DAT | 90DAT | |
| S0 | 6.02±0.60a$ | 8.5±0.79a£ | 10.7±1.02a¥ | 51±2.51a$ | 54±2.55a£ | 55±2.56a¥ |
| S1 | 6.5±0.68b$ | 9.1±0.86b£ | 11.2±1.12b¥ | 51.2±2.51a$ | 54.4±2.56a£ | 55.2±2.57a¥ |
| S2 | 4.57±0.48c$ | 6.2±0.65c£ | 7.3±0.70c¥ | 93±2.87b$ | 125±3.31b£ | 159±4.05b¥ |
| S3 | 5.1±0.53d$ | 6.7±0.68d£ | 8.0±0.74d¥ | 107±3.1c$ | 132±3.36c£ | 167±4.20c¥ |
| S4 | 3.43±0.33e$ | 4.8±0.50e£ | 5.9±0.61e¥ | 115±3.3d$ | 143±3.49d£ | 187±4.33d¥ |
| S5 | 4.0±0.42f$ | 5.4±0.57f£ | 6.5±0.67f¥ | 130±3.6e$ | 153±3.91e£ | 194±4.58e¥ |
Data presented are the means ± SE (n = 5). Different letters next to the number indicate significant difference (P < 0.05) among the treatments within a developmental stage. Symbols $, £ and ¥ denote significant change among the different developmental stages in the same treatment. S0 = Control, S1 = Cd (0 mg L−1) + Ca (50 mM), S2 = Cd (200 mg L−1), S3 = Cd (200 mg L−1) + Ca (50 mM), S4 = Cd (300 mg L−1), S5 = Cd (300 mg L−1) + Ca (50 mM). DAT, days after treatment; FW, fresh weight.