Table 1.
Diurnal temperature at bean harvest |
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Parameter | [CO2] (μL L-1) | 25°C | 30–35°C | 36–40°C |
Mass of 100 beans (g) | 380 | 9.57 ± 1.06 aA | 7.17 ± 1.00 abA | 5.23 ± 1.00 bA |
700 | 10.31 ± 0.76 aA | 8.02 ± 0.79 abA | 6.38 ± 0.56 bA | |
Density (g mL-1) | 380 | 0.686 ± 0.001 bA | 0.688 ± 0.001 bA | 0.754 ± 0.001 aA |
700 | 0.654 ± 0.001 aA | 0.654 ± 0.018 aA | 0.700 ± 0.011 aB | |
Yield (%) | 380 | 15.99 ± 0.79 aA | 12.47 ± 0.83 bA | 11.91 ± 1.05 bA |
700 | 16.26 ± 1.11 aA | 13.94 ± 1.03 abA | 12.10 ± 0.78 bA |
For each parameter, the mean values ± SE (n = 5–6, performing two replicates of five to six plants) followed by different statistical indexes express significant differences between temperatures for the same CO2 treatment (a, b), or between CO2 treatments within each temperature (A, B). Two-way ANOVA depicted significant changes for temperature, but not for [CO2] conditions or the interaction for all parameters.