Table 3.
The effects of low light intensity of different LEDs treatments on A: Assimilation rate (LSD for harvest stages = 2.26 (p = 0.00), for treatments = no significance (p = 0.062), and for interaction = 1.31 (p = 0.00)). B: Stomatal conductance (LSD for harvest stages = no significance (p = 0.590), for treatments = 0.09 (p = 0.002), and for interaction = no significance (p = 0.118)). C: transpiration rate (LSD for harvest = 1.42 (p = 0.038), for treatments = 1.16 (p = 0.00), and for interaction = 0.82 (p = 0.010)). D: Shoot fresh weight (g) (LSD for harvest = 43.05 (p ≤ 0.001), for treatments = no significance (p = 0.598), and for interaction = no significance (p = 0.723)). E: Root fresh weight (g) (LSD for harvest = 3.35 (p = 00), for treatments = no significance (p = 0.86), and for interaction = no significance (p = 0.072)). F: Leaves number (for harvest stage (p ≤ 0.001), for light treatment (p = 0.277) for the interaction between harvest stage and light treatments (p = 0.044)).
| Light Treatment | Harvest Stage | Growth and Physiological Parameters | ||||||
|---|---|---|---|---|---|---|---|---|
| Assimilation Rate (μmol m−2 s−1) | Stomatal Conductance (mmol m−2 s−1) | Transpiration Rate (mmol m−2 s−1) | Shoot Fresh Weight (g) | Leaves Number | Root Fresh Weight (g) | |||
| Blue/Red (B435/R663) | Harvest stage 1 | 3.30 ± 0.74 | 0.15 ± 0.01 | 1.58 ± 0.16 | 37.72 ± 2.72 | 21.62 ± 1.13 | 5.24 ± 1.04 | |
| Harvest stage 2 | 2.76 ± 0.36 | 0.21 ± 0.017 | 2.05 ± 0.126 | 100.5 ± 2.45 | 46.5 ± 5.46 | 10.67 ± 0.57 | ||
| Blue/Red (B450/R663) | Harvest stage 1 | 4.04 ± 0.37 | 0.19 ± 0.027 | 1.20 ± 0.066 | 33.81 ± 3.36 | 23 ± 2.84 | 1.89 ± 0.14 | |
| Harvest stage 2 | 2.27 ± 0.27 | 0.15 ± 0.016 | 1.41 ± 0.085 | 95.33 ± 2.45 | 50.33 ± 4.66 | 6.04 ± 0.43 | ||
| Blue/Red treatment (B/R-rich) | Harvest stage 1 | 6.39 ± 0.45 | 0.25 ± 0.010 | 3.84 ± 0.729 | 24.87 ± 4.79 | 24.75 ± 1.77 | 2.26 ± 0.51 | |
| Harvest stage 2 | 2.05 ± 0.20 | 0.22 ± 0.020 | 1.89 ± 0.091 | 82.21 ± 2.45 | 36 ± 2.73 | 10.23 ± 1.04 | ||
| LSD | Harvest stage | 2.26 | Not significant | 1.42 | 43.05 | 5.30 | 3.35 | |
| Light treatment | Not significant | 0.09 | 1.16 | Not significant | Not significant | Not significant | ||
| Interaction between light treatment and harvest stage | 1.31 | Not significant | 0.82 | Not significant | 14.71 | Not significant | ||