Table 2.
Estimates (standard errors in brackets) of two major parameters (δ and m), and Vcmax and Tp, from fitting Eq. (6) to irradiance- and CO2 response curves of five O2 levels for leaves of tomato and rice
| Parameter | Unit | Estimates | |
|---|---|---|---|
| Tomato | Rice | ||
| δ (a coefficient defining variations in gm,dif) | – | 1.41 (0.09) | 1.03 (0.05) |
| m (lumped anatomical-feature parameter) | – | 0.29 (0.07) | 0.00 |
| Vcmax (maximum rate of Rubisco activity) a | μmol m−2 s−1 | 113.70 (3.51) | 111.0 (6.44) |
| Tp (rate of triose phosphate utilization) b | μmol m−2 s−1 | 8.31 (0.11) | 7.81 (0.06) |
| R2 | – | 0.992 | 0.993 |
aSensitivity analysis showed that only the estimate of Vcmax depends on values of KmC and KmO (see text); here Vcmax was estimated using KmC = 291 μbar and KmO = 194 mbar (Cousins et al. 2010)
bSensitivity analysis showed that only the estimate of Tp depends on the value of α (see text); here Tp was estimated assuming that α = 0.3 (Busch and Sage 2017)