The percentage of calling females at any given time in the scotophase remained the highest in the low-intensity light (0.5 lux) treatment.
In low-intensity light (0.5 lux), the onset time of calling was the earliest ([F.sub.3,98] = 13.506, P < 0.001), the mean duration of calling was the longest ([F.sub.3,98] = 22.682, P < 0.001), and the mean number of calling bouts was the largest ([F.sub.3,152] = 25.324, P < 0.001).
The pheromone titer in low-intensity light (0.5 lux) increased dramatically after the beginning of the scotophase, peaked 4 h later, remained at this level for 3 h, and then decreased stably for the remainder of the scotophase ([F.sub.7,72] = 18.969, P < 0.001), which showed a similar temporal pattern to that in the dark ([F.sub.7,72] = 23.200, P < 0.001).
At 1 h into the scotophase, the incidence of mating was significantly higher in low-intensity light (0.5 lux) than under darkness (0.0 lux), indicating low-intensity light could promote mating in a shorter amount of time (1 h) than under darkness (1 h: [F.sub.3,32] = 14.258, P < 0.001).
assulta calling was inhibited in high-intensity light (50.0 lux), whereas calling behavior was the most frequent in low-intensity light (0.5 lux) based on the record of the calling parameters.
We did not find that low-intensity light (0.5 lux) could promote sex pheromone production more than darkness.
As the sorters discarded defective cherries from among hundreds passing by each minute, cool white fluorescent bulbs emitted low-intensity light
that also reflected from white uniforms, a white conveyor belt, and stainless steel tables.