Table 1.
Lamp sets | PPFD (μmol m-2 s-1) (400–700 nm) | YPF | R:FR | PSS | |
---|---|---|---|---|---|
C1 | FL1 | 251 ± 4 | 220 ± 4 | 11.8 ± 0.6 | 0.855 ± 0.001 |
C2 | FL2 | 251 ± 4 | 222 ± 4 | 14.3 ± 0.2 | 0.864 ± 0.001 |
C3 | FL1 | 136 ± 3 | 119 ± 3 | 11.8 ± 0.6 | 0.855 ± 0.001 |
C4 | FL2 | 136 ± 3 | 120 ± 3 | 14.3 ± 0.2 | 0.864 ± 0.001 |
Red light | FL1 | 44 ± 1 | 43 ± 1 | 14.8 | 0.870 |
Values were given as mean ± SE. Measurements were made at eight or nine different places where plants were grown. C1–C4 indicates white light conditions 1–4. C1 and C2, C3 and C4 differ in light spectral content, represented by R:FR and PSS (photostationary state of phytochrome); C1 and C3, C2 and C4 differ in light intensity, represented by PPFD and YPF (yield photon flux). Red light indicates red light condition.