26 hour day cycle?

The Earth's tidal system has a 6 hour and 12.5 minute cycle between high and low tides, Tidal cycles impact nutrient uptake in plants, although not responsible for circadian rhythm, the Pr to Pfr shift, driven by red and far-red light, acts as a key signal to the plant's internal clock, influencing its physiological processes, particularly flowering. Plants utilize this Pr/Pfr ratio to sense the length of the day/night cycle, triggering developmental changes. You can get a cannabis plant to flower on 10 hours of darkness, circadian rhythm is more about giving the plant clear and direct timings for the different cycles to occur, different cycles have different process, doesn't seem to fussy about durations so long as darkness does not exceed 10-12 The exact mechanisms by which magnetic fields influence plant processes are still being investigated, but some studies suggest that magnetic fields can affect ion channel activity in plant roots, potentially facilitating nutrient absorption. The most energy a plant can store or utilize in a daylight cycle is give or take 40moles at 400ppm co2, the duration of time it takes to harvest this much energy is not so much important you could have very low ppfd at 40 hours and 8 hours night, but that would just be a waste of time so to speak. Whatever energy is gathered during the day must be processed to make proteins, enzymes, amino acids, vitamins and all sorts and transferred across the plant. DLI stands for Daily Light Integral, and it's a measurement of the total amount of light, that a plant receives in a 24-hour period. 6/6/6/6 was always something I wanted to test out. Possibly try giving the plant 40 moles in each 6-hour segment. Wonder how it would deal with that? You would need upward of like 1800ppfd. Far more reasonable to give her 20 moles for each 6-hour segment at 900-1000PPFD, then you would still have a full 2x6 hours of night cycle and still remain in full veg. Benefits probably negligible if any at all, but id be interested to see how plant handles the stress of it all.

Unless it somehow allows you to provide more DLI over time (weeks and months of entire grow), it's not going to do much and more likely to be a negative than a positive. Just as there is no reason to give 20 hours of light if already providing 'max' DLI relative to local variables over 18 hours of light. It isn't even a good assumption to believe you can give proportionally more for 26 hours vs 24. i.e. you might be able to give 1/12th more, but i'd wager it it not 1:1 proportional as there will possibly be negative impacts due to long-standing adaptations to a 24-hour cycle. Same reasons humans can't sleep for longer and stay awake longer... you still end up with headaches, loss of attention-span and a drop in IQ as you stay up beyond what is 'normal.' No gaurantee it is a parallel, but shows the impact of adapting to an earth's day cycle over millions of years (goes back before our ancestors were humans). If this were vegas, i'd be betting against any scientific research showing a positive correlation here.

I do all types of unusual photoperiods for plants for research purposes. There is a ton we don't know yet on the academic side with respect to photoperiods. Unless it is auto, you certainly want a night period. As far as knowing what a day is, well outside atmospheric effects result in red and such that the plant would know. Semantically, 12 hours or more of darkness is what allows the hormone accumulation to initiate and sustain flowering. With that being said, we have done studies in humans on submarines and if you can isolate us from the sun.......we have zero idea how long a day is, as long as you adjust slowly.

Hello. I read an article on photo plants not auto's that said it's the dark cycle that's most important. These guys tried 12 hours of dark and 6 hours of light and the result was almost the same as 12/12 You would need a 3 or 5 day timer to try this one. You'll need a special timer for 26 hour days too. I think a you would need a 12 day timer if there's such a thing. And the plants can take 14 hours of light a still stay in flowering. Yeah.. good experiment... Go for it.. Chuck.