Table III.
Biomass of stover and grain, kernel number, individual kernel weight, total leaf area, and DOY of anthesis and silking for maize grown at ambient (370 μmol mol−1) or elevated [CO2] (550 μmol mol−1) upon harvest at the end of the growing season in 2004 at SoyFACE in Urbana, IL
| Parameter | [CO2] 370 | [CO2] 550 | P |
|---|---|---|---|
| Stover biomass R6 (g plant−1) | 134 ± 11 | 131 ± 9 | 0.68 |
| Grain biomass R6 (g plant−1) | 140 ± 6 | 142 ± 6 | 0.8 |
| Kernel number (plant−1) | 598 ± 38 | 609 ± 29 | 0.37 |
| Kernel weight (mg) | 248 ± 7 | 247 ± 5 | 0.83 |
| Total leaf area (cm2 plant−1) | 6,280 ± 471 | 6,304 ± 365 | 0.48 |
| Anthesis date | 188.9 ± 0.3 | 188.7 ± 0.2 | 0.53 |
| Silking date | 188.3 ± 0.3 | 188.1 ± 0.3 | 0.63 |