let me put it to you this way
in nature, when the seeds drop, and after winter hibernation, in the spring, when the thatws are over, the seed sprouts, low light period.
who am i to fuck with mother natures rules.
also i have found, once they have sprouted, that there will be a higher ratio of females to male if a 8 to 10 hour light cycle is used, but thats just my experience. it`s not a big difference tho, i`d estimate like maybe 5 to 10 percent.