Table 3.
Effects of exogenous calcium on shoot length, root length, shoot dry weight, root dry weight and SES score of two rice cultivars under 100 mM NaCl stress at seedling stage
| Cultivars | Treatments | Shoot length (cm) | Root length (cm) | Shoot dry weight (mg plant−1) | Root dry weight (mg plant−1) | SES score |
|---|---|---|---|---|---|---|
| Binadhan-10 | Control | 20.4 ± 0.373b | 8.05 ± 0.167a | 188.00 ± 0.002b | 37.87 ± 0.001c | 1.0 |
| 10 mM CaCl2 | 21.89 ± 0.430a | 8.00 ± 0.352a | 198.00 ± 0.007a | 63.47 ± 0.003a | 1.0 | |
| 15 mM CaCl2 | 16.99 ± 0.137d | 7.30 ± 0.593a–c | 167.80 ± 0.002c | 38.40 ± 0.001c | 1.0 | |
| 100 mM NaCl (S) | 11.69 ± 0.784h | 6.30 ± 0.562c | 31.30 ± 0.001 h | 15.77 ± 0.0003f | 5.0 | |
| S + 10 mM CaCl2 | 16.62 ± 0.456de | 6.97 ± 0.218bc | 137.57 ± 0.002e | 25.83 ± 0.0006e | 3.0 | |
| S + 15 mM CaCl2 | 14.46 ± 0.289f | 6.95 ± 0.338c | 118.67 ± 0.002f | 17.50 ± 0.0004f | 5.0 | |
| Binadhan-7 | Control | 18.58 ± 0.435c | 8.03 ± 0.419a | 156.50 ± 0.003d | 37.50 ± 00c | 1.0 |
| 10 mM CaCl2 | 18.33 ± 0.214c | 8.02 ± 0.628a | 168.30 ± 0.002c | 48.77 ± 00b | 1.0 | |
| 15 mM CaCl2 | 15.81 ± 0.479e | 6.33 ± 0.251c | 152.33 ± 0.002d | 32.13 ± 00d | 1.0 | |
| 100 mM NaCl (S) | 10.08 ± 0.686i | 7.98 ± 0.577ab | 26.50 ± 0.0007h | 10.77 ± 0.09g | 7.0 | |
| S + 10 mM CaCl2 | 12.98 ± 0.275g | 7.99 ± 0.333a | 131.50 ± 0.0002e | 14.73 ± 00fg | 5.0 | |
| S + 15 mM CaCl2 | 11.09 ± 0.145hi | 6.76 ± 0.187c | 109.67 ± 0.001g | 10.97 ± 00g | 7.0 | |
| Sig. level | * | * | * | * | ||
Each value presents the means ± standard errors (n = 3) obtained from three independent replicates. Different letters in each column indicates statistically significant difference following Fisher’s least significant difference method (P < 0.05, *)