Table 1.
Main effects of rootstock (sour orange (SO) and Volkamer lemon (Vol)) and NaCl salinity on plant height, stem diameter, leaf area, shoot and root fresh and dry weight.
| Rootstock | Salinity (dS m−1) | Plant height (cm) | Stem diameter (mm) | Leaf area (cm2· plant−1) | Shoot |
Root |
|||
|---|---|---|---|---|---|---|---|---|---|
| FW (g·plant−1) | DW (g·plant−1) | Length (cm·plant−1) | FW (g·plant−1) | DW (g·plant−1) | |||||
| SO | 18.4 b | 2.3 b | 50.1 a | 4.4 | 1.11 | 23.7 b | 1.5 b | 0.49 b | |
| Vol | 29.8 a | 3.5 a | 44.7 b | 4.7 | 1.40 | 29.3 a | 3.1 a | 0.87 a | |
| 0.7 | 38.0 a | 4.0 a | 70.1 a | 8.1 a | 2.34 a | 30.2 a | 4.6 a | 1.24 a | |
| 2.0 | 26.6 b | 3.7 a | 55.2 b | 6.5 b | 1.70 b | 31.4 a | 2.8 b | 0.86 b | |
| 4.0 | 26.0 bc | 3.6 a | 47.8 bc | 6.1 b | 1.57 b | 31.3 a | 3.0 b | 0.83 b | |
| 8.0 | 22.0 bc | 2.4 b | 35.2 d | 3.5 c | 0.92 c | 23.7 b | 1.7 c | 0.50 c | |
| 12.0 | 19.9 c | 2.2 b | 28.8 e | 2.4 c | 0.69 cd | 21.1 b | 1.2 cd | 0.39 c | |
| 15.0 | 12.3 d | 1.5 c | Na | 0.8 d | 0.30 d | 21.5 b | 0.6 d | 0.25 c | |
| p-value | Rootstock (R) | <0.0001 | <0.0001 | 0.01 | 0.99 | 0.12 | <0.0001 | <0.0001 | <0.0001 |
| Salinity (S) | <0.0001 | <0.0001 | 0.03 | <0.0001 | <0.0001 | <0.0001 | <0.0001 | <0.0001 | |
| R × S | 0.06 | 0.36 | 0.22 | 0.83 | 0.89 | 0.04 | 0.01 | 0.02 | |
Values in columns followed by different letters indicate significant differences between treatments at p < 0.05. Data represents mean of 24 seedlings for each rootstock and 8 seedlings for each salinity level.