Table 2. Effects of waterlogging on grain yield and yield components of summer maize.
| Hybrid | Treatment | Ear number | Grains per ear | 1000-grain weight | Yield |
|---|---|---|---|---|---|
| (ears ha-1) | (g) | (kg ha-1) | |||
| DH605 | V3-3 | 65,320a | 499c | 331c | 10,756d |
| V3-6 | 64,914c | 437d | 317d | 8,973e | |
| V6-3 | 65,278ab | 518bc | 346b | 11,634c | |
| V6-6 | 65,132b | 495c | 338c | 10,830d | |
| 10VT-3 | 65,049bc | 567a | 364a | 13,371b | |
| 10VT-6 | 65,437a | 522b | 351b | 11,971c | |
| CK | 65,320a | 586a | 367a | 14,016a | |
| ZD958 | V3-3 | 65,043b | 519c | 309de | 10,418d |
| V3-6 | 63,730c | 445e | 295e | 8,380f | |
| V6-3 | 65,328a | 522bc | 324c | 11,232c | |
| V6-6 | 63,256c | 476d | 314d | 9,490e | |
| 10VT-3 | 65,375a | 543ab | 345a | 12,240b | |
| 10VT-6 | 65,016b | 527b | 333b | 11,415c | |
| CK | 65,954a | 563a | 350a | 12,978a | |
| ANOVA | |||||
| Waterlogging period (P) | NS | * | * | ** | |
| Waterlogging duration (D) | * | ** | * | ** | |
| P×D | NS | * | * | ** | |
V3-3: waterlogging for 3 d at the third leaf stage; V3-6: waterlogging for 6 d at the third leaf stage; V6-3: waterlogging for 3 d at the sixth leaf stage; V6-6: waterlogging for 6 d at the sixth leaf stage; 10VT-3: waterlogging for 3 d at the 10th day after tasseling stage; 10VT-6: waterlogging for 6 d at the 10th day after tasseling stage; CK: no waterlogging
Values fallowed by a different small letter within a column are significantly different (P = 0.05) according to L. S. D. (t).
NS: Not significant.
* Significant at the 0.05 probability level
** Significant at the 0.01 probability level