Table 3.
Destructive measurements of plants grown under 12 h lighting (200 µmol m–2 s–1 red + 50 µmol m–2 s–1 blue, 06:00–18:00) and CL (200 µmol m–2 s–1 red, 06:00–18:00 + 50 µmol m–2 s–1 blue, 18:00–06:00).
| Time of measurement | 19 DIT | 50 DIT | ||
|---|---|---|---|---|
| Light treatment | 12 h lighting | Continuous lighting | 12h lighting | Continuous lighting |
| Plant leaf area (cm2 plant−1) | 2,860 ± 143 B | 3,211 ± 175 A | 12,427 ± 580 A | 12,851 ± 1,004 A |
| Leaf fresh weight (g plant−1) | 76.46 ± 4.57 A | 82.05 ± 8.05 A | 484 ± 35 A | 470 ± 59 A |
| Leaf dry weight (g plant−1) | 9.02 ± 0.52 A | 10.12 ± 1.42 A | 47.90 ± 3.02 A | 46.35 ± 5.83 A |
| Specific leaf mass (g m−2) | 31.43 ± 0.34 A | 30.70 ± 2.77 A | 38.45 ± 0.76 A | 35.71 ± 2.12 A |
| Stem fresh weight (g plant−1) | 116 ± 5 B | 128 ± 4 A | 620 ± 29 | 649 ± 33 |
| Stem dry weight (g plant−1) | 6.75 ± 0.46 A | 7.85 ± 0.73 A | 40.55 ± 2.57 A | 41.03 ± 2.55 A |
| Total plant fresh biomass (g plant−1) | 193 ± 6 A | 211 ± 8 A | 1104 ± 63 A | 1118 ± 90 A |
| Total plant dry biomass (g plant−1) | 15.75 ± 0.63 A | 17.85 ± 1.40 A | 88.45 ± 4.92 A | 87.38 ± 8.36 A |
Parameters represent measurements taken at two time points during the life cycle of the plants. Total plant fresh and dry biomass include leaves and stem weights. Any fruits presented at the 50 DIT were not included in analysis. Values represent the mean ± the standard error of the mean with n = 4. Different letters (A, B) represent a significant difference within a time point of a given parameter at p < 0.05.