Table 1.
Sources of variation for aboveground biomass (g m-2), grain yield (g m-2) and harvest index (HI) in a free-tillering and restricted-tillering line grown under ECO2 (elevated CO2) and ACO2 (ambient CO2), HT (+3°C above ambient temperature) and AT (ambient temperature), and well-watered and terminal drought conditions.
| Source of variation | Aboveground biomass (g m-2) | Grain yield (g m-2) | HI | ||||
|---|---|---|---|---|---|---|---|
| ACO2 | 1313.0 | 507.0 | 0.51 | ||||
| ECO2 | 1791.0 | 659.0 | 0.48 | ||||
| AT | 1524.0 | 578.0 | 0.50 | ||||
| HT | 1580.0 | 588.0 | 0.49 | ||||
| Free tillering | 1568.0 | 598.0 | 0.51 | ||||
| Restricted tillering | 1537.0 | 568.0 | 0.48 | ||||
| Well-watered | 1664.0 | 642.0 | 0.50 | ||||
| Terminal drought | 1441.0 | 524.0 | 0.49 | ||||
| LSD | 163.5 | 59.0 | 0.03 | ||||
| AT | HT | AT | HT | ||||
| Interactions | ACO2 | 1407.0 | 1220.0 | ns | ACO2 | 0.48 | 0.53 |
| ECO2 | 1642.0 | 1941.0 | ECO2 | 0.51 | 0.46 | ||
| LSD | 231.3 | 0.04 | |||||
Means of main or interaction terms and LSD (least significant difference) value at 0.05 significance level. The notation “ns” stands for not significant.