4 on 4 off

18/6 24/0 12/12 just about all the relevant light cycles.. All others probably decrease yield or give undesired results.. I don't really see where this thread is going
 
18/6 24/0 12/12 just about all the relevant light cycles.. All others probably decrease yield or give undesired results.. I don't really see where this thread is going

We're looking for some information on truth or tale on 4/4 being a good idea. Also, what would be the science behind it. The thread has a purpose but I'm not sure if very many people had thought about this. Most think 18/6 and 12/12 are simply what you do so they go with that, and never think beyond that.

I think Balzac is actually coming up with new ideas to try. I never thought of a 4/4. I'd like more info on that if it is out there as well.
 
4 hours dark, 4 hours light repeated will hurt flowering.

In fact, your plant(s) should stay in veg.



Research the 12/1 light cycle.

It's used to keep plants in veg.

It's like 12/12 but the 12 hours of darkness is broken up by 1 hour of light.



That means 12 hours light, 5.5 hours dark, 1 hour light, 5.5 hours dark. Repeat.



If 1 hour of light in the middle of the dark period is enough to keep a plant in veg, it stands to reason that the plant will also stay in veg at 4 hours of light and only 4 hours of dark, repeated.

Try it, see what happens, and tell us.

That makes no sense
 
We're looking for some information on truth or tale on 4/4 being a good idea. Also, what would be the science behind it. The thread has a purpose but I'm not sure if very many people had thought about this. Most think 18/6 and 12/12 are simply what you do so they go with that, and never think beyond that.

I think Balzac is actually coming up with new ideas to try. I never thought of a 4/4. I'd like more info on that if it is out there as well.

I couldn't find one shred of evidence that anyone has done this. Or atleast it has never been recorded.
 
So the 4 hours of darkness makes the plant think that it's really closer to the 18/6 than the 12/12 schedule? Interesting. Now you guys have me interested in the science of it all. I'll see if I can come up with some answers.



Yes.

With 4 hours of uninterrupted darkness at any given time, the plants stay in veg.

Even at 6 hours of uninterrupted darkness, our plants stay in veg. This is fairly obvious from the 18/6 lighting schedule that everyone uses.

It's the same with 12/1, since 12/1 only has 5.5 hours of uninterrupted darkness at any given time.

It usually takes around 12 hours of uninterrupted darkness to "turn on" "flower mode" in our plants.



That makes no sense



What doesn't make sense?



Our plants need a certain amount of uninterrupted darkness to go into "flower mode".

Most people use 12 hours of darkness to make the plants go into this "flower mode".

That's the typical 12/12 flower schedule almost everyone uses for flowering.



If you only have 6 hours of uninterrupted darkness, like with 18/6, the plants will stay in veg.

That's the typical 18/6 schedule many people use to keep their plants in veg.



With 12/1 you only get 5.5 hours of uninterrupted darkness, which is actually a half hour less uninterrupted darkness than 18/6.

By extension, only 4 hours of uninterrupted darkness, like you propose, should keep the plant in veg as well.



Here are some other threads on 12/1 that may better explain it...

https://www.rollitup.org/indoor-growing/481702-18-6-12-1-help.html

https://www.rollitup.org/indoor-growing/454279-12-1-veg-anyone-doing.html

https://www.rollitup.org/general-marijuana-growing/446118-12-1-lighting-schedule-has.html



Some guys do change the normal 12/12 flowering schedule to a different schedule as well, like 11/13, but I'm only talking about the veg part of 12/1 in relation to your 4/4 idea.

The end result, only 4 hours of darkness at a time and the plants should stay in veg.

I keep saying "should stay in veg" because I have never tried 4/4 personally.

Not many people have since 12/12, 18/6 to 24/0, and 12/1 work fine.



Here's the closest I could find here on RIU to your 4/4 idea:

https://www.rollitup.org/general-marijuana-growing/249301-6-hours-6-hours-off.html

Unfortunately the topic creator never returned to tell us how it went, if he even tried it.
 

Yes.

With 4 hours of uninterrupted darkness at any given time, the plants stay in veg.

Even at 6 hours of uninterrupted darkness, our plants stay in veg. This is fairly obvious from the 18/6 lighting schedule that everyone uses.

It's the same with 12/1, since 12/1 only has 5.5 hours of uninterrupted darkness at any given time.

It usually takes around 12 hours of uninterrupted darkness to "turn on" "flower mode" in our plants.


Do you have any reading material or reference to this? Or is this just based off of personal experiences?
 
I think I would have to agree with the guy when he said 4/4 would be more likely to make the plant think it's on a 18/6 veg cycle. (4 being closer to 6 than 12).. Makes sense to me. But, the 4 hours on, I don't see much benefit to that. Even if you do get 3 cycles per day... I think it would just slow the plants growth to be honest. I think plants take a little time to respond to light stimuli and other things; it's not like flipping a switch; they are living organisms. Just my .02 cents.
 
I'm gonna try but we got atleast 4 weeks before I make the change its a small grow got nothin to lose
 
Well i had a member slander me in another thread pointing to Ed Rosenthals book as a source of reference. Looks like it might not work. I've never read theory on what causes flowers to plant other than 12 hours of light and less.

I'm gonna do some reading after work
 
We're looking for some information on truth or tale on 4/4 being a good idea. Also, what would be the science behind it. The thread has a purpose but I'm not sure if very many people had thought about this. Most think 18/6 and 12/12 are simply what you do so they go with that, and never think beyond that.

I think Balzac is actually coming up with new ideas to try. I never thought of a 4/4. I'd like more info on that if it is out there as well.

i've been on grow boards since the early 90s, text only.

this is the number one lesson i've learned. if something is really good, we all do it or do some close version of it.

everything you can possibly think of, that isn't completely retarded, has been done and discarded and then a few years later, someone else comes along and does it and discards it.

not knocking what you're saying, i'm just saying there is nothing new here.
 
Do you have any reading material or reference to this? Or is this just based off of personal experiences?



Both.

For reading material/reference, Reinhard Delp is the guy who supposedly came up with the 12/1 schedule (also called "the gas lantern routine"). I can't find where he himself laid it out though, just a bunch of people relaying the message...

Those threads I linked are all about 12/1 and go into pretty good detail. The third one, https://www.rollitup.org/general-marijuana-growing/446118-12-1-lighting-schedule-has.html has the message from Reinhard Delp in the second post. I won't repost it here because it's long.



Personal experience too, I use 12/1 in the summers when it's too hot to have the 600w blazing all day long. It keeps my plants in veg just fine. Winter is no problem to leave the lights on 24/7 for me.
 
Well i had a member slander me in another thread pointing to Ed Rosenthals book as a source of reference. Looks like it might not work. I've never read theory on what causes flowers to plant other than 12 hours of light and less.

I'm gonna do some reading after work



Sorry to hear that man. That does seem to happen a lot on these types of boards. I guess we're all pretty loyal to our opinions. Just gotta try not to take the slander part to heart.

It's the darkness you have to think about.

We need around 12 hours of uninterrupted darkness to cause our plants to enter flowering mode.

The 12 hours of light part just happens to complete a full 24 hour cycle opposite the amount of darkness we need.
 
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