Table I. Grain yield and yield components under normal and drought stress conditions in greenhouse.
Values are mean ± sd (n > 25). Percentage symbol in the last column indicates percentage increase or decrease relative to ZH11 control.
| Lines | No. of Tillers per Plant | Panicle Number per Plant | Panicle Length | No. of Grains per Panicle | Filled Grains per Panicle | Seed-Setting Rate | 1,000-Grain Weight | Grain Yield per Plant |
|---|---|---|---|---|---|---|---|---|
| cm | % | g | g | |||||
| Normal (control) | ||||||||
| ZH11 | 10.67 ± 2.16 | 10.52 ± 2.08 | 19.66 ± 1.16 | 102.23 ± 6.66 | 98.00 ± 5.94 | 96.19 ± 1.14 | 24.75 ± 0.04 | 27.77 ± 0.40 |
| 2-56 | 11.32 ± 2.36a | 11.05 ± 1.88a | 21.19 ± 2.26a | 117.00 ± 14.37b | 110.69 ± 14.64b | 94.58 ± 3.80 | 24.88 ± 0.07 | 29.30 ± 0.81a |
| % | 6.1 | 5.05 | 7.78 | 14.45 | 12.95 | –1.67 | 0.54 | 5.51 |
| Drought | ||||||||
| ZH11 | 9.07 ± 1.67 | 8.79 ± 2.54 | 20.03 ± 1.65 | 105.04 ± 14.13 | 24.88 ± 8.84 | 23.42 ± 7.10 | 20.55 ± 0.24 | 4.63 ± 0.57 |
| 2-56 | 11.08 ± 1.75a | 9.58 ± 1.50a | 21.20 ± 1.65b | 114.46 ± 11.44a | 44.14 ± 11.44c | 38.62 ± 9.31c | 20.43 ± 0.11 | 7.65 ± 0.75b |
| % | 11.15 | 9.08 | 5.84 | 8.97 | 77.39 | 68.62 | –0.57 | 65.17 |
a
P < 0.05. bP < 0.01. cP < 0.001.