All of the treatments were placed in a culture room and were
arranged in as separate plots with different light intensities. There
was ventilation in the controlled environment, so the CO2 level
was the same as the CO2 level of atmosphere outside. The relative
humidity (RH) was maintained at 70
±
10%, with a 12 h photoperiod
and a temperature of 28 ◦C during daytime and 18 ◦C at night.