| Abbreviation | Definition |
| WHC | Water-holding capacity |
| C | Cultivar |
| Se | Selenium |
| SE | Standard error |
| FW | Fresh weight |
| PSI | Photosystem I |
| PSII | Photosystem II |
| QA | Quinone |
| PQ | Plastoquinone |
| LSD | Least significant difference |
| ANOVA | Analysis of variance |
| RWC | Relative water content |
| FAA | Free amino acid |
| TSS | Total soluble sugars |
| PRI | Photochemical reflectance index |
| NDVI | Normalized difference vegetative index |
| CCI | Chlorophyll content Index |
| SPAD | Structure intensive pigment index |
| Fv/Fm | Maximum photosystem II (PSII) quantum yield ratio of variable to maximum fluorescence |
| ABS/RC | Energy absorbed per reaction center |
| DIo/RC | Energy dissipated as heat per reaction center |
| TRo/RC | Trapped energy per reaction center |
| ETo/RC | The flux of electrons transferred from quinone (QA) to plastoquinone (PQ) per active PSII per reaction center |
| PIabs | Performance index absorbance |
| PItotal | Total performance index |
| Chl a | Chlorophyll a |
| Chl b | Chlorophyll b |
| Tot Chl | Total chlorophyll content |
| Asx | Arginine + Aspartate |
| Glx | Glutamate + Glutamine |
| Ala | Alanine |
| Arg | Arginine |
| Gly | Glycine |
| Pro | Proline |