Table 3.
Physiological response of S. imbricata to varying drought and salinity stresses.
| Drought stress (% field capacity) | Photosynthetic rate (μmol m−2 S−1) | Leaf water potential (MPa) | Na+1 uptake (μ mole g−1) | Cl −1 uptake (μ mole g−1) |
|---|---|---|---|---|
| 100 (WL1) | 23.23 | −21.99 | 405.9 | 40.42 |
| 80 (WL2) | 21.24 | −23.90 | 419.7 | 44.00 |
| 60 (WL3) | 19.95 | −28.94 | 423.8 | 43.33 |
| 40 (WL4) | 17.55 | −29.38 | 420.3 | 41.83 |
| LSD (0.05) | NS | 5.30 | NS | NS |
| Salinity stress (dS m−1) | ||||
| 5 (S1) | 22.48 | −20.30 | 398.8b | 38.67 |
| 10 (S2) | 19.90 | −24.26 | 428.7a | 42.33 |
| 15 (S3) | 19.73 | −35.01 | 404.3b | 40.63 |
| 20 (S4) | 20.17 | −24.47 | 438.0a | 47.96 |
| LSD | NS | 5.30 | 14.50 | 5.84 |
| Interaction (WS*SS) | Figure 1 | Figure 2 | Figure 3 | Figure 4 |
Means with different letters in each category are significantly different at α = 0.05. NS, WS, SS, and LSD stand for no significant, drought stress, salinity stress and least significant difference, respectively. The * symbol indicates the interaction.