Table 1
Light quality combination, photoperiod and daily integrated photosynthetic photon flux (PPF) used in this experiment.
Light treatment Light quality Photoperiod (day
length, h/day)
Daily integrated
PPF (mol m−2 s−1)
RB Red and blue mixture LEDs (80:20) 11 3.96
RB + B Red and blue mixture LEDs (80:20), blue LEDs 15 5.4
LRB + B Red and blue mixture LEDs (80:20), blue LEDs 19 6.84
RB + LB Red and blue mixture LEDs (80:20), blue LEDs 24 8.64