Flowering with 14 hours light
- Thread starter BobCajun
- Start date
Ghammondeggs
Member
It was my understanding that the flash of deep red lighting, say, 15 to 20 minutes before lights out was to mimic the spectrum produced when the sun passes through the horizon during sunset. This was to make the plant "go to sleep" and start using the sugars produced throughout the day much quicker than they would usually (which is 2hours). You can find an interesting Harley Smith grow class on youtube. Very interesting fellow! Sorry if this was already Discussed, but this topic has always interested me!
Rob Roy
Well-Known Member
There have been some interesting points brought up in this discussion. I'm no scientist, but I think people who experiment with flowering times might want to consider the genetic heritage of the strain(s) they are working with.
Many popular strains today are hybrids, but if someone were working with a pure or mostly Indica or a pure or mostly Sativa, I think the plant responses to any flowering light schedule changes might vary.
Many popular strains today are hybrids, but if someone were working with a pure or mostly Indica or a pure or mostly Sativa, I think the plant responses to any flowering light schedule changes might vary.
hyposomniac
Well-Known Member
Would you share your uv recipe?
So with auto flowers in my case I have a lot of seeds and it just so happens I got an auto flower now reading up on far red light and how they use the far red light to tell when it's the end of the day can you trick autoflowers into having a longer day than 24 hours by using far red light say at 36 hours and then triggering the end of the day response to make autoflowers grow more. more or less the autoflower uses the infrared to end
it's day whenever it is that you tell it the day is over
it's day whenever it is that you tell it the day is over
Furthermore using headlight cycle who says that their days have to be 24 hours what if someone where to do a 48 hour on 12 hour off continually would that make the plant think that the 48 hours is one day possibly using infrared at the end of 48 hours and then at the end of the 12 hours I've always been extremely interested in the growth of these plants and I've grown 3 years now and this will be the first year that I will be able to see my plants too flower due to stupid decisions I made previously which took me away from them but I've been good lately. So thank you for any and all feedback
Far
Red light cycle
mudballs
Well-Known Member
I dont think we understand ruderalis inflorescense/florogenesis phytohormones well enough to say yes or no. Good grief that's "dr.frankenstein your 6:30 appointment is here" stuff
simpleleaf
Well-Known Member
The two plants I'm currently blooming are months (not yet a year) behind schedule because I ran them under lights with very few blue diodes (maybe 15%). It was a combination of light fixtures I hadn't tried prior. After 4 months on 6-hours darkness they bloomed. I wasn't expecting them to bloom on 18-hours light per day ...Here's something I found interesting, from this article. It appears that weed can flower under surprisingly long days. The flowering phases were identical with 12/12 and the natural outdoor day lengths which varied from more than 14 to less than 12. This may explain why people have flowered with 14 hour days while using end of day far red treatments. I couldn't find any evidence that such treatments are capable of reducing the number of dark hours required for short day plants to flower, though it was useful for increasing stem length.
It's probably possible to flower with 14 hour days even without any far red treatments and the length of time to maturity may not be that much different from 12/12. Can't really tell from this table because at the end the days are less than 12 hours anyway, but I think it's possible. At least they started flowering and kept flowering at the same rate as 12 hours in the early phases, which is unexpected. Since the table shows that florets formed with 14.16 hours, they must have started being induced a week earlier with 14.4 hours. That particular strain, G5, was a high CBD strain, but it may be similar for THC ones.
