Table 5.
Pearson coefficients of linear correlation (p < 0.05) between selected studied parameters of common buckwheat cv. ‘Panda’ grown under different controlled-environment production systems.
| Variable | PI | Chl | FW | DW | DIo/CSm | φ Ro | ψ Ro | Flavonoids |
|---|---|---|---|---|---|---|---|---|
| Control | ||||||||
| PI | – | 0.563 | 0.537 | 0.617 | – | 0.845 | 0.823 | – |
| Chl | 0.563 | – | – | – | – | 0.705 | 0.723 | – |
| FW | 0.537 | – | – | 0.959 | – | 0.680 | 0.686 | – |
| DW | 0.617 | – | 0.959 | – | – | 0.639 | 0.643 | – |
| DIo/CSm | – | – | – | – | – | – | – | 0.639 |
| φ Ro | 0.845 | 0.705 | 0.680 | 0.639 | – | – | 0.998 | – |
| ψ Ro | 0.823 | 0.723 | 0.686 | 0.643 | – | 0.998 | – | – |
| Flavonoids | – | – | – | – | 0.639 | – | – | – |
| Variable | PI | Glu | Suc | Mal | DIo/CSm | Phenolics | ||
|---|---|---|---|---|---|---|---|---|
| LED | ||||||||
| PI | – | 0.565 | 0.456 | 0.744 | – | – | ||
| Glu | 0.565 | – | 0.953 | 0.793 | – | – | ||
| Suc | 0.456 | 0.953 | – | 0.692 | – | – | ||
| Mal | 0.744 | 0.793 | 0.692 | – | – | – | ||
| DIo/CSm | – | – | – | – | – | 0.653 | ||
| Phenolics | – | – | – | – | 0.653 | – | ||
Control—solar light supplemented with HPS (High-Pressure Sodium) lamps; LED (Light-Emitting Diodes); PI—performance index of PSII, Chl—chlorophyll index, FW—fresh weight, DW—dry weight, DIo/CSm—energy dissipation from PSII, ψ Ro—probability, at time 0, that a trapped exciton moves an electron into the electron transport chain beyond QA −, φ Ro—quantum yield of electron transport from QA− to the PSI end electron acceptors, Glu—glucose, Suc—sucrose, Mal—maltose.