| APA | Acid phosphatase activity |
| ATPase | ATP synthase |
| CC | Chlorophyll content |
| Ci | intercellular CO2 concentration |
| Fv/Fm | Maximum quantum efficiency of PSII |
| Gs | Stomatal conductance |
| NPQ | Non-photochemical quenching |
| PAE | Phosphorus absorption efficiency |
| PC | Phosphorus concentration |
| Pn | Net photosynthetic rate |
| PUE | Phosphorus use efficiency |
| qP | Photochemical quenching |
| RDW | Root dry weight |
| RuBPase | Ribulose-1,5-bisphosphate carboxylase |
| R/S | Root: shoot ratio |
| TDW | Total dry weight |
| Tr | Transpiration rate |
| SDW | Shoot dry weight |
| ΦPSII | Quantum efficiency of PSII |
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