Table 1.
Effects of nitrogen and foliar applications on grain yields and yield components of different wheat cultivars.
| Treatments | Grain yield (kg ha−1) | Spike number (104 ha−1) | Kernel number per spike | 1,000 kernel weight (g) |
|---|---|---|---|---|
| N APPLICATION RATE (N) | ||||
| 75 kg ha−1 | 7719.7a | 449.1a | 36.5a | 44.7b |
| 200 kg ha−1 | 7419.1ab | 424.9b | 35.1a | 45.6a |
| 275 kg ha−1 | 7226.6b | 415.5b | 34.2a | 45.0ab |
| LSD0.05 | 393.2 | 21.7 | 3.3 | 0.9 |
| CULTIVAR (C) | ||||
| Jinan 17 | 7417.1ab | 503.2a | 32.5b | 41.5d |
| Jimai 20 | 7627.3a | 460.5b | 33.2b | 44.3c |
| Jimai 22 | 7703.0a | 410.6c | 35.1b | 45.7b |
| Luyuan 502 | 7073.3b | 345.2d | 40.2a | 48.9a |
| LSD0.05 | 453.9 | 25.1 | 3.8 | 1.0 |
| FOLIAR APPLICATION (F) | ||||
| Deionized water | 7460.7a | 432.8a | 34.3a | 45.4a |
| ZnSO4·7H2O | 7385.5a | 426.7a | 35.1a | 44.7a |
| ZnSO4·7H2O + Sucrose | 7519.3a | 430.1a | 36.4a | 45.2a |
| LSD0.05 | 393.2 | 21.7 | 3.3 | 0.9 |
| ANOVA | ||||
| N | 0.0473 | 0.0083 | 0.3855 | 0.1103 |
| C | 0.0326 | <0.0001 | 0.0004 | <0.0001 |
| F | 0.7958 | 0.8521 | 0.4339 | 0.3554 |
| N × C | 0.4600 | 0.1859 | 0.5267 | 0.1208 |
| N × F | 0.4483 | 0.6647 | 0.5260 | 0.4414 |
| C × F | 0.9760 | 0.9484 | 0.3890 | 0.4880 |
| N × C × F | 0.7522 | 0.9772 | 0.6243 | 0.4753 |
Values followed by different lowercase letters in the same column are significantly different among treatments at P ≤ 0.05. Values under ANOVA are probabilities (P values) of the source of variation.