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Photoperiod and yield with autos
- Thread starter Spaventa
- Start date
All plants need a nighttime break to use their metabolic system. Running the photoperiod 24 hours a day is not in the auto plant's or any plant's best interest. Healthy plants have to have a nighttime break.
Is 24-hour light bad for plants?
Plants absorb light and convert it into energy. At night, when everything goes dark, respiration converts this energy into carbohydrates for later use. It means that exposing plants to light 24 hours a day can prevent respiration from occurring, which is also not conducive to healthy plant growth. Google
It depends mostly on genetics that is bred into the ruderalis. I see people running 18-hour photoperiods and getting killer results. If you run some keep us posted.
Is 24-hour light bad for plants?
Plants absorb light and convert it into energy. At night, when everything goes dark, respiration converts this energy into carbohydrates for later use. It means that exposing plants to light 24 hours a day can prevent respiration from occurring, which is also not conducive to healthy plant growth. Google
It depends mostly on genetics that is bred into the ruderalis. I see people running 18-hour photoperiods and getting killer results. If you run some keep us posted.
Yes, yield will be significantly lower
Mo' lights, mo' buds
Mo' lights, mo' buds
Do you notice faster life cycle on 24? More buds in same time? …or less?? I would expect it to get the job done quicker too, no? Very excited to hear
ErdenErwin
Well-known member
also in terms of cost-benefit ratio?
No not at all, lifecycle is a little bot longer with 24/7 lights regime but you can get monster yield with the right feeding
Ok so let’s look at it the other way round… if you run the lights 12/12, how much would the yield be reduced?? If it’s not linear with yield, maybe g/w would be better on less hours? I’m looking for the best electricity efficiency you could achieve with autos indoor. That’s a major limiting factor for many.
So phytochrome still plays a role… interesting
Do you know the old dutch trick?
They used 1000w hps mixed with 600w hps to make a cut on electric cost, and you can do the same with autos as well, for example 2 hours 1000 w 2 hours 600 w, or something like that
They used 1000w hps mixed with 600w hps to make a cut on electric cost, and you can do the same with autos as well, for example 2 hours 1000 w 2 hours 600 w, or something like that
And they found an efficiency doing that? Ok, worth looking into also.
Yes because sun is not constant, and energy is not used instantly, it takes 1-2 hours to convert it by the synthesis, it works yes
I get it. It’s at max saturation and dropping the watts for a while doesn’t even register because they remain fully satisfied for a period after the lights dim. Coooooool.
Edit. Just realised my unintentional pun because it would allow temps to drop too… another possible benefit if your otherwise struggling to hold temps with high intake temps.
In one of the bugbee videos he talks about that the plants don't use much of the lights energy at the end of the day. Sounds like that autos react different when they profit from 24h light.
Has anyone tried if f.e. 600w 12/12 yields the same as 300w 24h?
Has anyone tried if f.e. 600w 12/12 yields the same as 300w 24h?
i got at least 25% more buds , so yes for me it' s ok
i did experiment 12/12 14/10 16/8 18/6 and 24/0
for me no doubt the 24h works better for me ,
for example with 12/12 i got like 30-40 grams from one plant wiht 18/6 was around 70-80 grams/plant and with 24/0 it' s always more 120-160 g/plants ( biggest result with this schedule was 262 gram from a plant )
you can check this thread , was a 24/24 auto grow :
Diary - Maestro and Venom Smaasssh auto under Fce 4800 and Fce3000
Here is my grow of Urban Legends Maestro and Venom Smaasssh auto under Mars hydro Fce4800 , they are 6 to 15 days from sprout , they did start under a Hps 250w till yesterday when i switch to the Led panel , that' s why they did stretch a bit , they grow at 24/24 from the beginning ...
www.icmag.com
That’s some diligent study and useful results, many thanks for sharing.
ErdenErwin
Well-known member
read through your posts and also the outdoor reports, thank you for your input and your experiments. I think anyone who takes a few minutes of time will benefit.
CharlesU Farley
Well-known member
Looks like you and I are the only ones that are in the "plants need rest, let's take care of 'em and not overwork 'em, so they'll produce the type of "high" we want to experience" side of things in this thread.
I usually stay out of these auto discussions, because I'm totally ignorant of them and will never understand why people would grow / develop them if they're not in the far north and outdoors.
That being said, with all the talk of efficiency, increasing yields, etc., I still can't understand why you would develop/breed with a hemp type geno, that has absolutely no THC content?????? That _guarantees_ you're going to cut the potential amount of total amount of THC in whatever offspring you develop, versus the potential it would have if you didn't use the auto/hemp.
But what the fuck do I know, I'm just an old dinosaur????
I run 16/8 during veg and 12/12 during flowering. Here's a shot from my tent an hour ago because I just changed the timers to switch to flowering. The plants most assuredly aren't autos but it's difficult for me to believe I could squeeze more "efficiency" or "yield" out of them, and I won't even mention topping, cutting, fimming, etc. :Hard to get a pic without my Velcro girl getting in the pic.
