| df | Mean Square | ||||||
Single tuber weight, W (g) | Tuber No of 6 plants | Large, % (≥ 150 g) | Medium, % (150 g ≥ W ≤ 100 g) | Small, % (100 g ≥ W ≤ 50 g) | Cull, % (≥50 g) | |||
Season (S) | 1 | 108043.7 | 506.25 | 346.80 | 56.30 | 111.65 | 0.30 | |
Irrigation (I) | 3 | 2248.43 | 366.32 | 223.90 | 112.54 | 126.12 | 152.45 | |
Non-uniform depth (U) | 5 | 291.52 | 521.23 | 225.42 | 242.89 | 122.78 | 935.66 | |
S * I | 3 | 167.63 | 1.29 | 21.61 | 5.34 | 4.30 | 20.06 | |
S * U | 5 | 158.63 | 1.05 | 2.30 | 6.53 | 4.15 | 3.03 | |
I * U | 15 | 688.05 | 47.35 | 158.27 | 164.96 | 192.94 | 79.44 | |
S * I * U | 15 | 67.54 | 1.60 | 7.12 | 4.06 | 4.31 | 7.74 | |
Error | 96 | 77.55 | 6.69 | 18.94 | 28.74 | 26.07 | 32.27 | |
| F-value | |||||||
Season (S) | 1 | 1393.17* | 75.62* | 18.31* | 1.959ns | 4.283* | 0.009ns | |
Irrigation (I) | 3 | 28.992* | 54.721* | 11.82* | 3.916* | 4.837* | 4.73* | |
Non-uniform depth (U) | 5 | 3.67* | 77.86* | 11.90* | 8.453* | 4.71* | 29.00* | |
S * I | 3 | 2.16ns | 0.19ns | 1.14ns | 0.19ns | 0.17ns | 0.62ns | |
S * U | 5 | 2.045ns | 0.16ns | 0.12ns | 0.23ns | 0.16ns | 0.09ns | |
I * U | 15 | 8.87* | 7.07* | 8.36* | 5.74* | 7.40* | 2.46* | |
S * I * U | 15 | 0.87ns | 0.24ns | 0.38ns | 0.14ns | 0.17ns | 0.24ns | |