| Treatments | Number of panicles hill−1 | Number of filled grains panicle−1 | Test weight (g) | Grain yield (kg・ha−1) | Straw yield (kg・ha−1) | Water Use Efficiency (kg・ha−1・mm−1) |
| I1N1 | 5.8 | 72.3 | 13.4 | 2873 | 4028 | 4.9 |
| I1N2 | 6.3 | 73.7 | 13.5 | 3243 | 4296 | 5.6 |
| I1N3 | 6.5 | 75.5 | 13.9 | 3321 | 4475 | 5.7 |
| I1N4 | 7.0 | 80.6 | 14.4 | 3624 | 4904 | 6.2 |
| I1N5 | 6.9 | 79.1 | 14.2 | 3443 | 4795 | 5.9 |
| I1N6 | 7.2 | 84.3 | 14.8 | 3925 | 5490 | 6.7 |
| I2N1 | 6.1 | 75.7 | 13.8 | 3162 | 4637 | 5.0 |
| I2N2 | 6.7 | 77.4 | 14.1 | 3437 | 4922 | 5.4 |
| I2N3 | 7.1 | 79.8 | 14.3 | 3591 | 5137 | 5.7 |
| I2N4 | 8.0 | 85.5 | 14.8 | 3891 | 5569 | 6.2 |
| I2N5 | 7.0 | 81.0 | 14.4 | 3690 | 5372 | 5.8 |
| I2N6 | 8.7 | 87.6 | 15.2 | 4300 | 5898 | 6.8 |
| I3N1 | 6.6 | 76.4 | 14.1 | 3207 | 4785 | 5.1 |
| I3N2 | 7.1 | 79.8 | 14.5 | 3589 | 5116 | 5.7 |
| I3N3 | 7.8 | 81.5 | 14.8 | 3725 | 5229 | 5.9 |
| I3N4 | 8.5 | 86.3 | 15.4 | 4196 | 5724 | 6.6 |
| I3N5 | 8.6 | 82.8 | 15.1 | 3926 | 5688 | 6.2 |
| I3N6 | 9.5 | 90.5 | 15.6 | 4792 | 6213 | 7.6 |
| I4N1 | 7.3 | 78.6 | 14.4 | 3401 | 4970 | 5.4 |
| I4N2 | 8.0 | 80.0 | 14.6 | 3705 | 5268 | 5.9 |
| I4N3 | 8.5 | 83.1 | 15.2 | 3956 | 5346 | 6.3 |
| I4N4 | 9.3 | 89.3 | 15.6 | 4757 | 6213 | 7.5 |
| I4N5 | 9.0 | 84.0 | 15.3 | 4553 | 5892 | 7.2 |
| I4N6 | 10.3 | 93.8 | 15.7 | 5296 | 6783 | 8.4 |
| I5N1 | 7.8 | 81.2 | 14.6 | 3550 | 5106 | 5.2 |
| I5N2 | 8.3 | 83.0 | 15.1 | 3941 | 5470 | 5.7 |
| I5N3 | 8.6 | 85.3 | 15.0 | 4080 | 5827 | 5.9 |
| I5N4 | 9.9 | 92.5 | 15.2 | 4971 | 6359 | 7.2 |
| I5N5 | 9.4 | 88.7 | 15.8 | 4812 | 6197 | 7.0 |
| I5N6 | 10.7 | 96.4 | 15.9 | 5419 | 6906 | 7.9 |
| S.Ed. | 0.34 | 3.82 | 0.82 | 170 | 231 | * |
| C.D. (0.05) | 0.70 | NS | NS | 349 | 477 | * |