I'm not entirely sure what people are referring to as "stress", but from my experience, temp doesn't really determine anything in the germination stage... I have grown seeds that were put through extreme highs and lows, before, after and during germination and there doesn't seem to be anything that would suggest sex of marijuana seeds is based on temperatures... I've had seeds that were left out over winter with below 0 temps, then sprout in late winter on their own, and turn out both male and female, and have gotten both male and females from seeds that were baked in the hot sun for days or even weeks, then sprouted in those very hot temperatures. Also germinated seeds with high temps in the day and low temps at night to show that fluctuation doesn't really do anything either. I've also had plenty of light instability early on, and it not make a noticeable difference... maybe later it might herm, and definitely over generations a plant will adapt to its environment, and some things like some of some plants in eastern asia that get almost year long flowering, being prone to being hermies, but gender being determined male or female from stress in the germ stage is kind of a reach. if others have found it does, then maybe there is something to it, but maybe it is just luck or lack there of. Last year I had a bunch of seeds that I gave out, and during the summer I grew 10 and a neighbor grew 10, outdoors with the exact same temperatures and conditions, and I ended up with all 10 being males and they ended up getting all females... i know that sounds almost too weird to be true, but it is... stuff happens... sometimes it's just dumb luck. All that said, I'm pretty sure turtle eggs DO depend on temperature to determine sex, so you never know I guess... (thought i'd add that while extreme temps don't seem to alter sex in my personal experience, it does seem like it can influence the vigor of the plants from those seeds... at least that has been my observation) And no disrespect to jj... I am actually supposed to be getting him some indian seeds right now... but yeah, that was probably just him making shit up or quoting an unproven theory... but you never know... people used to say the bleeding thing was a myth, so never say never.