Can we grow weed from MARS? (28h light cycle)

Do you think 4 hours more a day makes a difference?

  • Yes

    Votes: 1 16.7%

  • No

    Votes: 2 33.3%

  • I'm interested to see

    Votes: 2 33.3%

  • There are results already

    Votes: 1 16.7%
  • Total voters
    6
Jylhavuori

Jylhavuori

Well-Known Member
Some years ago I grew DWC HPS Master Kush with a light cycle of 28hrs using a digital 12-stepped timer (week days in it). Infact the timer was really cheap and good. It carried up to 2x600W HPS ignition, was 16A. (I just checked and that type is still being produced.)

At the time I was kinda just growing without any environmental monitoring, always high EC and stressed plants. I didn't take much notes on the vegetative period (20-8.) but saw a great difference in flowering structure and time, using 16/12. She flowered for 89 days and I've never seen such difference at inflorescence size! I didn't weigh the yield but it was close to double the mass comparing to 12/12 Master Kush. It was a clone. But not too much can be extracted from that grow since the control was so poor.


I'm certainly going to do more testing on the 28 hour cycle in the future, when I have bigger appartment to put one more tent. Or if I'd build a loftbed I'd have the extra room for about 120cm tent. Lots of things to test.. for example:
different light spectrums, light cycle combinations, feeding, senescence. Then later maybe such as epigenetics and so on.

I'm really interested about this too now that I'm better at growing and understanding the physics. Plus that we have cool new lights to play with!

Any input is welcome!

Talk about otherworldly
 
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I wonder has this reached anyone... I found one diary from 2022 in another forum, but it had no valuable information or research. Just a random test.

I really think this is worth a look on behalf of circadian rhythm and its possible evolution
 
Rsawr said:
So why haven't you tried it yet? Should take one tent and a digital timer!
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I have no excuses.. or wait, I do! At that period in my life my mental stability was annually lost...therefore raids and loss of equipment too :mad: Also switched to led at that time.

Now I have 90cm+80cm perpetual system in a 34m² flat, gotta build some extension or pause the perpetual. Flowering tent is only 180cm tall and that's no good for this experiment, I suspect.

On the other hand, a perpetual 28 hour system is not excluded. Just gotta have some results first.
 
I dont know where to start looking atm, but there are old forum threads from the 2000's that do talk about this. ICMag, i think. You can speed flower with reduced yield with an 18 hour timer (6/12), and you can gain more yield with prolonged flower with a 36 hour timer (24/12). I remember the 36 hour cycle took too long to be practical. However, I dont recall any picture proof within the conversation. Your use of 28 hours seems more practical. The 28 hour clone went 89 days, how long did the 24 hour clone flower for?
 
T macc said:
I dont know where to start looking atm, but there are old forum threads from the 2000's that do talk about this. ICMag, i think.
Click to expand...
I gotta see those threads. Gonna search some. Thanks for the info.
T macc said:
You can speed flower with reduced yield with an 18 hour timer (6/12), and you can gain more yield with prolonged flower with a 36 hour timer (24/12). I remember the 36 hour cycle took too long to be practical. However, I dont recall any picture proof within the conversation.
Click to expand...
Figures. Can get quite complex in many variables...
T macc said:
Your use of 28 hours seems more practical. The 28 hour clone went 89 days, how long did the 24 hour clone flower for?
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From that mom, only one clone was grown. It was 40cm taller and the budstacks were taller aswell, almost like she didn't want to stop building new sites. Even with the blue led there. The seeds, which I grew plenty in the days, were quite stabile around 54-60 days.

I'm really curious of how the plants with different genome would act. For example 14 hours of dark or even 16, when trained early on for high PPFD. Then, spectrum dialing could be worth too considering the effort - simple blue-red ratios to control biomass and height, which might form an issue some cases.
 
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It seems there's not much to compile from.

Just gotta start it myself then - to see where it starts going with cloning 28h plants. I have no possibilities to make seeds. So a diary is coming soon.
 
Why LED is different than HPS in circadian rhythm:

"Crosstalk between the circadian clock and light
Light is critical for the regulation and maintenance of circadian rhythms in plants. Changes in photoperiod affect the phase of the circadian clock and alter plant growth, development, and metabolism. Photoreceptors, such as cryptochromes, phytochromes, and ZEITLUPE (ZTL) family members, perceive light signals and transmit this information to the central circadian oscillator through various mechanisms. The signals generated by different photoreceptors can interact and integrate.

Photoreceptors are involved in the dose-dependent perception of far-red, red, blue, and ultraviolet lights and mediate seed germination, photomorphogenesis, photoperiodism, temperature responses, phytohormone metabolism, and epigenetic modifications. Cryptochrome, the first blue light receptor to evolve in plants, is ubiquitous in plantsCitation30 and participates in regulation of the circadian clock, photomorphogenesis, stomatal opening and closing, flowering, and other growth and developmental programs."

 
i feel like the first few generation might freak out, however if you breed them to get use to the light they will do alot better than cloning down the road, its the same principal i use for drought and heat training for different plants including weed in my garden
 
hostagecs said:
i feel like the first few generation might freak out, however if you breed them to get use to the light they will do alot better than cloning down the road, its the same principal i use for drought and heat training for different plants including weed in my garden
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I'm not so sure how seeds would react, but yeah, better to seed than just clone. In nature, circadian clock in plants evolves in scale of millions of generations if I understood correctly - But then again it's not comparable by function.
 
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Idk but I tried gas lantern routene to 9/15 and never again. Flowered on day 8 forming buds finished quick but very reduced yield, one tip leafs (reveg like) and even seeing now my red heavy mars hydro fce’s werent the cause of the foxtail like bud either. Was the light schedule.

Going back to 18/6 and 12/12 theyre normal again looking great and filling space chonkers. Gonna be a big yielder. I think its what theyve been trained for indoors for so long and respond best to. Strains differ but ya.

I was gonna taper the light towards harvest but read any change so much as a few mins could make them herm. Stress them out in otherwords. A herm will herm but thats another discussion. Id read things like carbohydrate synthisizing and etc at night, ya, sounds important. So I left that be. Only autos wouldnt mind and even they could use a sleep cycle.

Im not getting something tho, but it is the time of day I get blasted.. 28h? Theres 24hrs in a day.. If you give them any less than 12h dark they reveg. Idk what thats about but I guess Im just here to say be weary of trying these things. Theres a reason for the traditional 18/6 and 12/12. I only set myself back trying GLR and shorting light durations but was worth the science.
 
medidedicated said:
Im not getting something tho, but it is the time of day I get blasted.. 28h? Theres 24hrs in a day.. If you give them any less than 12h dark they reveg. Idk what thats about but I guess Im just here to say be weary of trying these things. Theres a reason for the traditional 18/6 and 12/12. I only set myself back trying GLR and shorting light durations but was worth the science.
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Custom timing, a 6 day week. Interval timer, or a 12 stepped timer with week days suits. This 28 hour cycle is to test the +4 hours of light per day, and in late flowering perhaps transition from 16/12 up to 12/16. So the lights set on at different times of each day of the week. Later the genome questions arise.
 
Im a bit lost but when I saw title say grow on mars I think I get it. I thought it said mars hydro LOL. Id worry about reveg, are you doing photos or autos? Photos as I was saying I observed poor results playing with schedule.
 
medidedicated said:
Im a bit lost but when I saw title say grow on mars I think I get it. I thought it said mars hydro LOL. Id worry about reveg, are you doing photos or autos? Photos as I was saying I observed poor results playing with schedule.
Click to expand...

The results you will get from different lighting are going to vary greatly based on the genetics being grown. Some plants might freak out, some might love it and greatly improve. I haven’t done the gas lantern, but I have played with various different lighting times over the years.
 
medidedicated said:
Im a bit lost but when I saw title say grow on mars I think I get it. I thought it said mars hydro LOL. Id worry about reveg, are you doing photos or autos? Photos as I was saying I observed poor results playing with schedule.
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Photos. I dont like auto quality/control. I'm thinking some Hindu again to try. A low leaf to flower ratio is suited for it. Some fast Indica anyways to make it ripen at some point!
 
Im not putting much effort in understanding but I just keep misreading things. Also because I dont live on mars so idk what its like there. Googling it says they get about 25hrs in a day 12 of which sunlight. So should work just fine but crazy to see how effects plants they must be so confused.

Ive played with GLR and shortening light hours but this is advanced enough to throw me off lol. Too stoned to understand lol. And thats coming from an alien.
 
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