| Irrigation intervals | Plant density m2 | 2011 season | 2012 season | |||||
| Leaves proline content (μmol/g FW) | Crude protein % | Total carbohydrate % | Leaves proline content (μmol/g FW) | Crude protein % | Total carbohydrate % | |||
| 6 | 6 | 2.38 | 10.26 | 84.55 | 2.72 | 12.46 | 82.65 | |
| 8 | 2.78 | 9.12 | 83.52 | 2.82 | 10.25 | 82.12 | ||
| 10 | 3.00 | 8.22 | 83.22 | 2.89 | 9.72 | 81.42 | ||
| General mean | 2.72 | 9.20 | 83.76 | 2.81 | 10.81 | 82.06 | ||
| 9 | 6 | 3.10 | 9.82 | 83.00 | 3.57 | 10.22 | 81.21 | |
| 8 | 3.24 | 8.62 | 82.69 | 3.30 | 9..32 | 81.00 | ||
| 10 | 3.28 | 8.10 | 82.42 | 3.34 | 8.00 | 80.45 | ||
| General mean | 3.21 | 8.85 | 82.70 | 3.40 | 9.18 | 80.89 | ||
| 12 | 6 | 3.00 | 8.24 | 82.32 | 3.38 | 9.44 | 80.12 | |
| 8 | 3.33 | 7.65 | 82.00 | 3.42 | 8.12 | 80.00 | ||
| 10 | 3.52 | 7.23 | 82.00 | 3.86 | 8.00 | 80.00 | ||
| General mean | 3.28 | 7.71 | 82.11 | 3.55 | 8.52 | 80.04 | ||
| General mean of factor (B) | 6 | 2.83 | 9.44 | 83.29 | 3.22 | 10.71 | 81.33 | |
| 8 | 3.12 | 8.46 | 82.74 | 3.18 | 9.23 | 81.04 | ||
| 10 | 3.27 | 7.85 | 82.55 | 3.36 | 8.57 | 80.62 | ||
| LSD | A | 0.36 | ---- | ---- | 0.54 | ---- | ---- | |
| B | 0.28 | ---- | ---- | 0.12 | ---- | ---- | ||
| A × B | 0.21 | ---- | ---- | 0.34 | ---- | ---- | ||