Item | Mean ± SE | |||||
Single tuber weight (g) | Tuber No of 6 plants | Marketable yield percentage, % | Cull, % (≥50 g) | |||
Large (≥150 g) | Medium (150 g ≥ W ≤ 100 g) | Small (100 W ≤ 50 g) | ||||
Season |
|
|
|
|
| |
Spring | 88.41 ± 1.04A † | 34.81 ± 0.3B | 30.12 ± 0.5B | 26.94 ± 0.63A | 27.93 ± 0.6A | 15.01 ± 0.67A |
Fall | 116.27 ± 1.04B | 29.56 ± 0.3A | 27.01 ± 0.5A | 28.19 ± 0.63A | 29.69 ± 0.6B | 15.11 ± 0.67A |
Irrigation method (I) |
|
|
|
|
| |
TF | 100.67 ± 1.47B | 27.39 ± 0.43B | 27.82 ± 0.73B | 26.37 ± 0.89A | 27.70 ± 0.85A | 18.12 ± 0.95B |
PF | 89.94 ± 1.47A | 25.37 ± 0.43A | 25.37 ± 0.73A | 29.69 ± 0.89B | 30.64 ± 0.85B | 14.31 ± 0.95A |
TP | 103.43 ± 1.47C | 36.42 ± 0.43D | 30.73 ±0.73C | 28.32 ± 0.89AB | 26.77 ± 0.85A | 14.17 ± 0.95A |
TL | 115.31 ± 1.47D | 31.92 ± 0.43C | 30.35 ± 0.73C | 25.87 ± 0.89A | 30.14 ± 0.85B | 13.65 ± 0.95A |
Non-uniform depth (U) |
|
|
|
|
| |
U3 | 97.26 ± 1.8A | 29.79 ± 0.53B | 23.86 ± 0.89A | 26.03 ± 1.09B | 27.50 ± 1.04ABC | 22.61 ± 1.16C |
U13 | 102.47 ± 1.8B | 32.58 ± 0.53C | 27.17 ± 0.89B | 28.25 ± 1.09BC | 26.73 ± 1.04AB | 17.86 ± 1.16B |
U23 | 104.52 ± 1.8C | 35.29 ± 0.53D | 31.65 ± 0.89C | 31.19 ± 1.09C | 26.47 ± 1.04A | 10.69 ± 1.16A |
U33 | 105.48 ± 1.8C | 39.79 ± 0.53E | 31.51 ± 0.89C | 29.77 ± 1.09C | 30.43 ± 1.04CD | 8.30 ± 1.16A |
U43 | 101.46 ± 1.8B | 31.79 ± 0.53C | 30.13 ± 0.89C | 28.03 ± 1.09BC | 32.09 ± 1.04D | 9.76 ± 1.16A |
U53 | 102.83 ± 1.8B | 23.83 ± 0.53A | 27.07 ± 0.89B | 22.12 ± 1.09A | 29.65 ± 1.04BCD | 21.16 ± 1.16C |