Table 2 Photosynthetic parameters and fluorescence kinetic parameters of leaves in pale green mutant (pgm) and wild-type (FT).
Traits | Characteristics | FT | pgm |
|---|---|---|---|
Photosynthetic parameters | Net photosynthetic rate (Pn, μmol CO2 m−2 s−1) | 13.78 ± 0.71 | 12.82 ± 1.55 |
Stomatal conductance (Gs, mol H2O m−2 s−1) | 0.4237 ± 0.28 | 0.2803 ± 0.09 | |
Intercellular CO2 concentration (Ci, μmol CO2 mol−1) | 246.00 ± 28.28 | 336.00 ± 21.27* | |
Transpiration rate (Ts, mmol H2O m−2 s−1) | 4.08 ± 0.36 | 4.87 ± 0.74 | |
Fluorescence kinetic parameters | Minimum fluorescence (F0) | 0.1067* | 0.0550 |
Maximum fluorescence (Fm) | 0.5783* | 0.1697 | |
Primary photochemical efficiency of PS II (Fv/Fm) | 0.8150* | 0.6757 | |
Actual photochemical efficiency of PSII (ΦPSII) | 0.4000 | 0.5350* | |
Photochemical quenching (qP) | 0.7070 | 0.9453* | |
Non-photochemical quenching (NPQ) | 0.6000* | 0.1493 |