Table 1.
Comparison of recovery abilities of salicylic acid and/or sodium nitroprusside in terms of growth and reactive oxygen species in P. sativum L. under different salinity regimes
| Treatments | Radicle length (mm) | Dry weight (g) | Superoxide radical (µmol min−1 g−1 FW) | Hydrogen peroxide (µmol g−1 FW) |
|---|---|---|---|---|
| C | 116.66c ± 1.25 | 2.62c ± 0.03 | 11.66ef ± 1.44 | 0.57g ± 0.01 |
| 100 mM NaCl | 97.9e ± 2.50 | 2.39e ± 0.01 | 20d ± 2.5 | 0.68e ± 0.01 |
| 400 mM NaCl | 14.33i ± 1.38 | 1.69i ± 0.01 | 47.5a ± 2.5 | 1.42a ± 0.02 |
| SA | 117.66c ± 0.76 | 2.66c ± 0.01 | 9.16fgh ± 2.88 | 0.53gh ± 0.02 |
| SA + 100 mM NaCl | 111.7d ± 0.81 | 2.42e ± 0.02 | 14.16e ± 1.44 | 0.64ef ± 0.07 |
| SA + 400 mM NaCl | 19.16h ± 0.80 | 1.76h ± 0.02 | 40b ± 2.5 | 1.15b ± 0.009 |
| SNP | 119.9b ± 0.36 | 2.75b ± 0.03 | 6.25hi ± 1.25 | 0.51h ± 0.01 |
| SNP + 100 mM NaCl | 116.56c ± 1.60 | 2.52d ± 0.02 | 10.25fg ± 0.90 | 0.63f ± 0.01 |
| SNP + 400 mM NaCl | 22.1g ± 0.36 | 1.84g ± 0.02 | 25.83c ± 3.81 | 1.05c ± 0.007 |
| SA + SNP | 125.83a ± 1.04 | 2.92a ± 0.03 | 4.41i ± 0.62 | 0.46i ± 0.01 |
| SA + SNP + 100 mM NaCl | 119.9b ± 0.36 | 2.71b ± 0.03 | 7.66ghi ± 1.01 | 0.56g ± 0.008 |
| SA + SNP + 400 mM NaCl | 25.73f ± 1.10 | 1.97f ± 0.02 | 19.16d ± 1.44 | 0.97d ± 0.01 |
Data are means of five replicates ± SE. Different letters indicate significant difference between treatments at P < 0.05