Table 2.
Tiller number, leaf area, shoot mass, and root-shoot ratio of three wheat cultivars (CW134, CH58, and CH1) at the stem elongation stage under moderate drought stress (MD) and well-watered conditions (WW; 2015 Rhizobox experiment), or under rainfed (RF) and irrigated (IR) conditions (2016 Field trial).
| Treatments | Tiller number | Leaf area (cm2) | Shoot mass (g) | Root-shoot ratio | |
|---|---|---|---|---|---|
| 2015 Rhizobox experiment | |||||
| MD | CW134 | 6.67 c | 15.1 d | 2.62 c | 0.78 c |
| CH58 | 5.33 d | 16.6 c | 3.26 bc | 0.58 d | |
| CH1 | 5.67 d | 15.7 cd | 2.52 c | 0.70 c | |
| WW | CW134 | 8.33 b | 20.4 b | 3.87 b | 1.36 a |
| CH58 | 9.33 a | 26.3 a | 5.69 a | 1.00 b | |
| CH1 | 7.33 c | 27.4 a | 3.99 b | 1.24 a | |
| Cultivar | ∗ | ∗∗ | ∗ | ∗ | |
| Water | ∗ | ∗ | ∗∗ | ∗ | |
| Cultivar × Water | ns | ∗∗ | ∗∗ | ∗∗ | |
| 2016 Field trial | LAI (m2 m-2) | ||||
| RF | CW134 | 1268 c | 1.80 d | 104 d | 1.13 a |
| CH58 | 1240 c | 2.44 a | 162 b | 0.61 d | |
| CH1 | 1230 c | 2.24 b | 122 cd | 0.81 b | |
| IR | CW134 | 1353 b | 2.09 c | 146 b | 0.83 b |
| CH58 | 1418 a | 2.35 ab | 196 a | 0.70 c | |
| CH1 | 1350 b | 2.39 a | 142 bc | 0.78 bc | |
| Cultivar | ∗ | ∗ | ∗ | ∗ | |
| Water | ∗∗ | ns | ∗ | ∗∗ | |
| Cultivar × Water | ns | ∗ | ns | ∗ | |
Data for rhizobox experiment were calculated for each rhizobox, and for the field trial on one square meter. For each experiment, values in a column followed by the same letter are not significantly different at P < 0.05 as determined by the Duncan’s test. For ANOVA results in each experiment, ∗P < 0.05, ∗∗P < 0.01, ns, not significant.