Source of variation | Df | Plant height | Number of branches/plant | Tuber number/plant | Total tuber yield | Marketable yield | HI |
---|---|---|---|---|---|---|---|
Season | 1 | 226.03 | 455.53 | 107.97 | 42.84 | 131.50 | 268.94 |
Replicate (season) | 4 | 140.23 | 41.74 | 10.04 | 11.08 | 4.45 | 36.49 |
Irrigation | 1 | 914.73 | 6.89 | 225.37* | 5172.76* | 4942.84* | 1422.01 |
Season × irrigation (main plot error) | 1 | 349.27 | 6.40 | 2.36 | 74.12 | 33.05 | 96.84 |
Nitrogen | 3 | 618.75*** | 44.85** | 134.62*** | 1005.90*** | 993.62*** | 108.54* |
Irrigation × nitrogen | 3 | 54.47 | 17.83 | 23.72** | 249.89*** | 200.94*** | 49.90 |
Error | 34 | 44.12 | 7.51 | 4.11 | 9.50 | 6.33 | 40.56* |
CV | Â | 9.73 | 16.02 | 12.10 | 9.77 | 0.97 | 12.55 |
R2 | Â | 0.73 | 0.76 | 0.85 | 0.97 | 9.60 | 0.63 |