Table 1 Spectral parameters of the three light treatments tested and abbreviated names of trays from each light treatment switching places with trays from the other two light treatments for days 4–6 after grafting.
Parameters | Light treatment | Light treatment at 6 days after grafting | ||||
---|---|---|---|---|---|---|
R | B | 12B | Abbreviation | Days 1–3 | Days 4–6 | |
UV %; 380–399 nm | 0.08 | 0.09 | 0.05 | R-R | R | R |
Blue %; 400–499 nm | 0.24 | 98.87 | 11.94 | R-B | R | B |
Green %; 500–599 nm | 0.51 | 0.28 | 0.53 | R-12B | R | 12B |
Red %; 600–699 nm | 98.47 | 0.34 | 86.83 | B-R | B | R |
Far-red %; 700–780 nm | 0.69 | 0.42 | 0.64 | B-B | B | B |
Blue peak wavelength (nm) | – | 451 | 454 | B-12B | B | 12B |
Red peak wavelength (nm) | 661 | – | 660 | 12B-R | 12B | R |
R:B | – | – | 7.27 | 12B-B | 12B | B |
PPS | 0.89 | 0.51 | 0.89 | 12B-12B | 12B | 12B |