Table 5.
Mean effect of the salt stress level (0, 100, 200 and 300 mM NaCl) on the content of malondialdehyde (MDA), free proline and chlorophyll a and b (mean ± SD), regardless of the pumpkin accession.
| NaCl concentration (mM) | MDA (µmol g−1) |
Proline (µg mg−1) | Chl a (mg mg−1) |
Chl b (mg mg−1) |
|---|---|---|---|---|
| Control | 1.17 ± 0.53 b | 0.82 ± 0.06 a | 30.09 ± 2.87 b | 60.64 ± 5.96 b |
| 100 | 1.75 ± 0.30 a | 0.51 ± 0.02 b | 35.47 ± 3.90 a | 69.88 ± 7.68 a |
| 200 | 1.43 ± 0.21 b | 0.82 ± 0.04 a | 25.70 ± 2.43 d | 52.44 ± 5.50 d |
| 300 | 1.34 ± 0.18 b | 0.92 ± 0.05 a | 28.91 ± 2.46 c | 56.34 ± 5.98 c |
| F Value | 33.6 ** | 471.2 ** | 552.3 ** | 737.5 ** |
| SD |
** Means in the same column followed by the same letter are not significantly different at p < 0.05, according to Duncan’s multiple range test.