Table 3.
Index of quality at harvest under different treatments.
| Year | Treatments | Protopectin content (mg g− 1 FW) |
Soluble pectin content (mg g− 1 DW) |
Starch content (mg g− 1 FW) | Soluble sugar content (mg g− 1 FW) | Carotenoid content (µmg g− 1 FW) |
Crude protein content (%) |
|---|---|---|---|---|---|---|---|
| 2018 | T0 | 155.59 b | 27.57 b | 113.43 c | 41.57 c | 7.45 b | 2.97 c |
| T1 | 177.65 a | 32.19 a | 140.46 b | 63.02 b | 8.22 b | 3.57 b | |
| T2 | 193.27 a | 33.10 a | 154.79 a | 61.19 b | 10.49 a | 4.15 a | |
| T3 | 193.16 a | 32.79 a | 153.84 a | 74.98 a | 10.93 a | 4.32 a | |
| T4 | 196.49 a | 33.21 a | 157.12 a | 62.05 b | 11.39 a | 4.11 a | |
| 2019 | T0 | 146.98 d | 28.45 b | 123.43 c | 44.16 d | 7.07 d | 3.01 c |
| T1 | 171.85 c | 31.50 b | 153.03 b | 64.60 c | 7.67 d | 3.96 b | |
| T2 | 188.27 bc | 32.42 b | 162.21 b | 70.98 b | 10.02 c | 4.18 b | |
| T3 | 206.84 ab | 39.11 a | 181.08 a | 80.40 a | 11.16 b | 4.81 a | |
| T4 | 203.33 a | 38.21 a | 180.48 a | 76.27 ab | 13.43 a | 4.65 a | |
| ANOVA | |||||||
| Year | ns | ns | * | * | ns | ns | |
| Treatment | ** | ns | ** | ** | * | ** | |
| Year×Treatment | ns | ns | ns | * | * | * | |
T0: no fertilizer application, T1: basic application of 450 kg ha− 1 WS fertilizer, T2: basic application of 60 L ha− 1 BF and 450 kg ha− 1 WS fertilizer, T3: split application of 450 kg ha− 1 WS fertilizer, T4: combined basic application of 60 L ha− 1 BF and split application of 450 kg ha− 1 WS fertilizer. Values within the same column of the same year with different letters differ significantly as determined by ANOVA-Duncan’s multiple range test (p < 0.05). *, P ≤ 0.05; **, P ≤ 0.01; ns, not significant.