Table 4.
Comparison of the diurnal effect on mean leaf area (LA) ±s.e in two varieties of sorghum [S. bicolor (Sb) and the HyA hybrid] grown under either well-watered (HighW) or water-limited (LowW) conditions Images were captured in the late afternoon and the following morning.
| Line | Treatment | 17:00 h | 05:00 h | Paired t-test | |
|---|---|---|---|---|---|
| LA cm2 | LA cm2 | P | % LA increase | ||
| Sb | HighW | 1760±40 | 1820±40 | *** | 3.1±0.4 |
| HyA | HighW | 2890±50 | 3060±57 | *** | 5.6±0.9 |
| Sb | LowW | 860±50 | 1210±70 | *** | 28.7±1.1 |
| HyA | LowW | 470±20 | 660±30 | *** | 28.2±1.1 |
Significance of a paired t-test and two-way ANOVA are presented. ***P<0.001.