Table 1.
Mean ± s.e. and ANOVA P-values (n = 8) of the architectural characteristics of the first-order axes of coffee plants grown under elevated (e[CO2]) and actual (a[CO2]) air CO2 concentration
| Variables | Treatments | Effects | |
|---|---|---|---|
| e[CO2] | a[CO2] | P-value | |
| Metamer number (unit) | 66.8 ± 1.7 | 66.1 ± 1.9 | 0.8006 |
| Height (cm) | 154.8 ± 3.1 | 163.3 ± 4.6 | 0.0702 |
| Internode length (cm) | 2.3 ± 0.1 | 2.5 ± 0.1 | 0.0931 |
| Bottom diameter (cm) | 4.9 ± 0.2 | 4.8 ± 0.2 | 0.8830 |
| Top diameter (cm) | 0.3 ± 0.0 | 0.3 ± 0.0 | 0.3468 |
| Branching in second-order axes (unit) | 107.0 ± 3.8 | 104.8 ± 4.9 | 0.6687 |
P-values <0.10 were considered significant and are highlighted in bold.