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Experimental design and lighting treatments.
| Group | Lighting pattern | Photoperiod/(h) | Lighting regimen |
|---|---|---|---|
| 1 | Continuous | 16 | 16L:8D (6:00–22:00) |
| 2 | Intermittent | 16 | 12L:2D:4L:6D (6:00–18:00, 20:00–24:00) |
| 3 | Continuous | 14 | 14L:10D (6:00–20:00) |
| 4 | Intermittent | 14 | 10L:2D:4L:8D (6:00–16:00, 18:00–22:00) |
| 5 | Continuous | 12 | 12L:12D (6:00–18:00) |
| 6 | Intermittent | 12 | 8L:4D:4L:8D (6:00–14:00, 18:00–22:00) |
