| Source of variation | df | Chl C | Phi2 | NPQ |
| Replication | 1 | 559.91 | 0.00 | 1.53 |
| water Levels | 1 | 3706.00 | 1.56 | 200.02 |
| Main Plot Error | 1 | 218.59 | 0.07 | 2.08 |
| Genotypes | 36 | 72.12*** | 0.02* | 2.60* |
| Genotypes × Water Levels | 36 | 25.27 | 0.02* | 2.40 |
| Sub Plot Error | 72 | 26.71 | 0.01 | 1.58 |