GAS lantern Schedule & Diminished light

[pineappleman420]

Sure there's less stretch, because there's less growth. Faster finish? Get real. You can SAY I'm wrong, but where's the proof? Why has no article ever been published saying that anything ever grown in a greenhouse with the gaslight had it's finish sped up? I find it rather unlikely that you found an effect of night interruption that has never been noticed by any scientist before in the history of greenhouse horticulture.

I actual have tried @RM3 scheduled and it does as he says... I just like to experiment and always look for new ways. I also came across the 6/2 light page when researching my own theories out...Now it's time to test. Maybe the test should be between the two different views here. It may take a little while but i will get this set up with clones ect to have as much controls as i can with the testing.

 

[disbeverk]

I actual have tried @RM3 scheduled and it does as he says... I just like to experiment and always look for new ways. I also came across the 6/2 light page when researching my own theories out...Now it's time to test. Maybe the test should be between the two different views here. It may take a little while but i will get this set up with clones ect to have as much controls as i can with the testing.

Would love to see a test of 18/6 vs 6/2 x3.

 

[BobCajun]

I actual have tried @RM3 scheduled and it does as he says... I just like to experiment and always look for new ways. I also came across the 6/2 light page when researching my own theories out...Now it's time to test. Maybe the test should be between the two different views here. It may take a little while but i will get this set up with clones ect to have as much controls as i can with the testing.

Speaking of clones, the 6/2 works great for rooting them. 11/1 didn't work well at all so I doubt if 24/0 would be good, even though many pages recommend it. Cuttings are under water stress when in light but in dark they make water during respiration so they sort of supply themselves.

 

[iHearAll]

The Turnois book merely mentions that an interruption in the middle of a 16 hour night prevents flowering, which is well known. I found an article abstract that says night interruption will reduce stem elongation and increase branching, so that much may be true. That's with sun grown plants though. The day extension or night interruption with electric light of with lower far red content than the sun will reduce stem length.

Since RM3 grows with fluorescents rather than sunlight I doubt there would be any difference from the night interruption. It's the exact same spectrum. And notice that it says the same effect is produced by extending the day with low far red light. So a longer day produces the same effect, like 18/6. It all only applies to greenhouse growing, where you have a short day problem in the winter months. I don't think it has an effect of speeding up flowering later when 12/12 is used though. And btw you could get the same effect as 12/5.5/1/5.5 by 1 minute of light in the middle instead of 1 hour. So you could use 13/11 with a one minute interruption in the middle of the 11. You don't even need an hour so what's the point? If more darkness increases growth then why would you not use 12/12 with 1 minute on in the middle of the night part? You'd get 59 more minutes of dark.

has anyone tested the one minute thing? seems like a stretch.

View attachment 3840499 View attachment 3840501 View attachment 3840503 View attachment 3840505
Under 12-1 until yesterday. Larger was kept bonsai'd for a while. Smaller is a querkle vegged for 2-3wks

querkle is older than i thought. closer to 5 weeks old

 

[BobCajun]

has anyone tested the one minute thing? seems like a stretch.

querkle is older than i thought. closer to 5 weeks old

It's not my idea, it's a well established fact that all you need is a minute of red or white light in the middle of the dark period to prevent flowering. They just didn't know that in the distant past when gas lamps were still in use. Not much excuse for using a whole hour now though.

 

[Rayne]

It's not my idea, it's a well established fact that all you need is a minute of red or white light in the middle of the dark period to prevent flowering.

Kindly site the study that proves the claim you made. As far as I am aware, the plant uses an hour of light like it is a short day followed by a long night, which is then followed with a long day and short night.

In regards to "Finishing faster" do you have a calculator?

With the standard mainstream flowering light schedule (12 hours on / 12 hours off) at the end of seven days a plant will be subjected to 84 hours of darkness to flower under. By the end of the flowering period, should it be a full eight weeks a plant will be subjected to 672 hours of darkness (84 hours per week multiplied eight weeks).

During the flowering phase: Using a lighting schedule that mimics what happens outdoors... (AKA: the diminishing light schedule)
Week 1 (11 on / 13 off) 13 off x 7= 91 hours of darkness
Week 2 (10.5 on / 13.5 off) 13.5 off x 7 =94.5 hours of darkness
Week 3 (10 on / 14 off) 14 off x 7 = 98 hours of darkness
Week 4 (9.5 on / 14.5 off) 14.5 off x 7 = 101.5 hours of darkness
Week 5 (9 on / 15 off) 15 off x 7 = 105 hours of darkness
Week 6 (8.5 on / 15.5 off) 15.5 off x 7 = 108.5 hours of darkness
Week 7 (8 on / 16 off) 16 off x 7 = 112 hours of darkness
Week 8 (7.5 on / 16.5 off) 16.5 off x 7 = 115.5 hours of darkness
Week 9 (7 on / 17 off) 17 off x 7 = 119 hours of darkness
Week 10 (6.5 on / 17.5 off) 17.5 off x 7 = 122.5 hours of darkness
Week 11 (6 on / 18 off) 18 off x 7 = 126 hours of darkness
Week 12 (5.5 on/ 18.5 off) 18.5 off x 7 = 129.5 hours of darkness

If one were to use basic algebra...
Weeks 1-3 total amount of darkness... 283.5 hours
Weeks 4-6 total amount of darkness... 315 hours
Weeks 7-9 total amount of darkness... 346.5 hours
Weeks 10-12 total amount of darkness... 378 hours

Weeks 1-6 total amount of darkness... 598.5 hours
Weeks 1-7 total amount of darkness... 710.5 hours
Weeks 1-8 total amount of darkness... 826 hours
Weeks 1-9 total amount of darkness... 944.5 hours
Weeks 1-10 total amount of darkness... 1,067 hours
Weeks 1-11 total amount of darkness... 1,193 hours
Weeks 1-12 total amount of darkness... 1,323 hours

For anyone reading this thread that is also considering using the "Gas lantern routine" and the "Diminishing light schedule" start from a seed or take clones from a plant that has developed under the "Gas lantern routine"

Using clones from a plant that has been subject to the, vegetative, mainstream light schedule (18 on / 6 off) will take time to adapt to another vegetative light schedule.

Using clones that were not rooted in a grow medium other than the intend final medium will have to adapt to the unintended grow medium. Hydroponic roots are not the same as the roots a plant develops in a soil based medium.

 

[BobCajun]

Kindly site the study that proves the claim you made. As far as I am aware, the plant uses an hour of light like it is a short day followed by a long night, which is then followed with a long day and short night.

In regards to "Finishing faster" do you have a calculator?

With the standard mainstream flowering light schedule (12 hours on / 12 hours off) at the end of seven days a plant will be subjected to 84 hours of darkness to flower under. By the end of the flowering period, should it be a full eight weeks a plant will be subjected to 672 hours of darkness (84 hours per week multiplied eight weeks).

During the flowering phase: Using a lighting schedule that mimics what happens outdoors... (AKA: the diminishing light schedule)
Week 1 (11 on / 13 off) 13 off x 7= 91 hours of darkness
Week 2 (10.5 on / 13.5 off) 13.5 off x 7 =94.5 hours of darkness
Week 3 (10 on / 14 off) 14 off x 7 = 98 hours of darkness
Week 4 (9.5 on / 14.5 off) 14.5 off x 7 = 101.5 hours of darkness
Week 5 (9 on / 15 off) 15 off x 7 = 105 hours of darkness
Week 6 (8.5 on / 15.5 off) 15.5 off x 7 = 108.5 hours of darkness
Week 7 (8 on / 16 off) 16 off x 7 = 112 hours of darkness
Week 8 (7.5 on / 16.5 off) 16.5 off x 7 = 115.5 hours of darkness
Week 9 (7 on / 17 off) 17 off x 7 = 119 hours of darkness
Week 10 (6.5 on / 17.5 off) 17.5 off x 7 = 122.5 hours of darkness
Week 11 (6 on / 18 off) 18 off x 7 = 126 hours of darkness
Week 12 (5.5 on/ 18.5 off) 18.5 off x 7 = 129.5 hours of darkness

If one were to use basic algebra...
Weeks 1-3 total amount of darkness... 283.5 hours
Weeks 4-6 total amount of darkness... 315 hours
Weeks 7-9 total amount of darkness... 346.5 hours
Weeks 10-12 total amount of darkness... 378 hours

Weeks 1-6 total amount of darkness... 598.5 hours
Weeks 1-7 total amount of darkness... 710.5 hours
Weeks 1-8 total amount of darkness... 826 hours
Weeks 1-9 total amount of darkness... 944.5 hours
Weeks 1-10 total amount of darkness... 1,067 hours
Weeks 1-11 total amount of darkness... 1,193 hours
Weeks 1-12 total amount of darkness... 1,323 hours

For anyone reading this thread that is also considering using the "Gas lantern routine" and the "Diminishing light schedule" start from a seed or take clones from a plant that has developed under the "Gas lantern routine"

Using clones from a plant that has been subject to the, vegetative, mainstream light schedule (18 on / 6 off) will take time to adapt to another vegetative light schedule.

Using clones that were not rooted in a grow medium other than the intend final medium will have to adapt to the unintended grow medium. Hydroponic roots are not the same as the roots a plant develops in a soil based medium.

Not hard to find. Just google short day plants night break. Here's something from wikipedia. It says several minutes But I've seen in other articles that with red light it only takes 1 minute and very low intensity, but let's just say 15 minutes to be safe. That's a lot less than an hour.

"Short-day plants
Short-day plants flower when the night lengths exceed their critical photoperiod.[7] They cannot flower under short nights or if a pulse of artificial light is shone on the plant for several minutes during the night; they require a continuous period of darkness before floral development can begin. Natural nighttime light, such as moonlight or lightning, is not of sufficient brightness or duration to interrupt flowering."
https://en.wikipedia.org/wiki/Photoperiodismhttps://en.wikipedia.org/wiki/Photoperiodism

What the longer night break of an hour or two is used for is making long day plants flower. Apparently that takes a longer light period.

I don't know what your list of various light cycles is about but if you flower with less than 12 hours light you'll get weak product. Also, no weed growing country gets less than 9 hours light at any time in the year. Afghanistan gets just under 10 hours on its shortest day so you're not really mimicking nature with, say, 5.5 hours of light.

 

[davillains]

what are you guys going on about ? the gas lantern was invented to prevent the plant from switching to flowering mode so you can veg longer. end of story. What am I missing ?

 

[disbeverk]

what are you guys going on about ? the gas lantern was invented to prevent the plant from switching to flowering mode so you can veg longer. end of story. What am I missing ?

the part where people prefer it over 18/6.

 

[davillains]

smaller electricity bills ?

 

[Rayne]

Not hard to find. Just google short day plants night break. Here's something from wikipedia. It says several minutes But I've seen in other articles that with red light it only takes 1 minute and very low intensity, but let's just say 15 minutes to be safe. That's a lot less than an hour.

"Short-day plants
Short-day plants flower when the night lengths exceed their critical photoperiod.[7] They cannot flower under short nights or if a pulse of artificial light is shone on the plant for several minutes during the night; they require a continuous period of darkness before floral development can begin. Natural nighttime light, such as moonlight or lightning, is not of sufficient brightness or duration to interrupt flowering."
https://en.wikipedia.org/wiki/Photoperiodismhttps://en.wikipedia.org/wiki/Photoperiodism

What the longer night break of an hour or two is used for is making long day plants flower. Apparently that takes a longer light period.

I don't know what your list of various light cycles is about but if you flower with less than 12 hours light you'll get weak product. Also, no weed growing country gets less than 9 hours light at any time in the year. Afghanistan gets just under 10 hours on its shortest day so you're not really mimicking nature with, say, 5.5 hours of light.

I already knew of the wikipedia entry before I started using the lighting schedules I use with my grows. Wikipedia entries can be edited by almost anyone.

Kindly remember plants only get a portion of their growth related energy from light not explicitly all of it. As for the strength... oh wait you apparently have not studied Botany, much less tried another flowering light schedule.

If you were to read carefully and with comprehension you would have noticed the total amount of darkness gradually increases. Rather than staying the same. The diminishing light schedule also increases the total amount of darkness a short day / long night flower, such as cannabis, has to produce more flower clusters. More flower clusters means your dry harvest weight is heavier

As the total of amount of light gets closer to the plant's critical day length the plant begins to push itself, for the sake of seed production, as it's senescence takes over.

 

[BobCajun]

I already knew of the wikipedia entry before I started using the lighting schedules I use with my grows. Wikipedia entries can be edited by almost anyone.

Kindly remember plants only get a portion of their growth related energy from light not explicitly all of it. As for the strength... oh wait you apparently have not studied Botany, much less tried another flowering light schedule.

If you were to read carefully and with comprehension you would have noticed the total amount of darkness gradually increases. Rather than staying the same. The diminishing light schedule also increases the total amount of darkness a short day / long night flower, such as cannabis, has to produce more flower clusters. More flower clusters means your dry harvest weight is heavier

As the total of amount of light gets closer to the plant's critical day length the plant begins to push itself, for the sake of seed production, as it's senescence takes over.

I tried 8 hour days on the last week of a recent batch and it came out noticeably less potent than 12/12. Surprisingly I did get a high yield. Don't know if it was from that or not, probably not since it was only one week. Maybe it makes more weight at the expense of potency.

 

[ttystikk]

been usin it for years and know several others usin it as well. No one I know that has tried it has gone back as the pros far outweigh the cons

Well, I believe I reported that I wasn't happy with the results. This would have been a couple years ago.

I'm now doing something similar; six on and two off, three times a day. I'm also running more light. Higher light intensity along with the short day cycles seems to be having a synergistic effect and my veg plants are growing more vigorously than ever.

Am I saving power? No, but I'm getting more growth for the same usage, which still chalks up as a win in my book! The real dividend is bigger plants- and you know what that means.

 

[ttystikk]

Hardly bro science! Tis called the Gas Lantern Routine because it was developed by green house growers back when they used gas lanterns for street lights in order to extend the growing season and deliver more flowering plants. Tis century old tech that is still used today

Quite. But it was still the same bright sunlight all day.

This leads me to wonder if those who have trouble with GLR don't have enough light intensity in veg for the technique to work properly.

 

[BobCajun]

If the 12/5.5 etc thing worked then 5/3 would have been better than 6/2, which it wasn't. Less light does not equal more growth. In flower mode there's some evidence that longer light hours inhibit flowering to some degree, so shorter days in flowering might be good, but not in veg mode. In veg mode it's overall light hours up to a certain point, which seems to be about 18 hours a day total. The shorter chunks of 6 hours is to avoid the midday depression thing of long days. I don't see how the 12/5.5 could be beneficial myself.

 

[ttystikk]

I tried 8 hour days on the last week of a recent batch and it came out noticeably less potent than 12/12. Surprisingly I did get a high yield. Don't know if it was from that or not, probably not since it was only one week. Maybe it makes more weight at the expense of potency.

There are people here running their whole bloom cycle this way. They get good results, even if yield is a bit lower.

 

[ttystikk]

If the 12/5.5 etc thing worked then 5/3 would have been better than 6/2, which it wasn't. Less light does not equal more growth. In flower mode there's some evidence that longer light hours inhibit flowering to some degree, so shorter days in flowering might be good, but not in veg mode. In veg mode it's overall light hours up to a certain point, which seems to be about 18 hours a day total. The shorter chunks of 6 hours is to avoid the midday depression thing of long days. I don't see how the 12/5.5 could be beneficial myself.

It's effective in my veg space right now. I am running high light intensity in my veg, without which I don't think it would work nearly so well.

Having related this a couple times, it occurs to me to ask where the idea of low light levels in veg got started, anyway? I sure don't like the results compared to higher intensity!

 

[torontoke]

I tried 8 hour days on the last week of a recent batch and it came out noticeably less potent than 12/12. Surprisingly I did get a high yield. Don't know if it was from that or not, probably not since it was only one week. Maybe it makes more weight at the expense of potency.

Or maybe you should just stop guessing and arguing with people actually using the technique and are happy with the results.
Switching your timer for the last week had about as much to do with your decrease in potentcy as the color of your shoes the day you chopped it.

smaller electricity bills ?

Lower electric bill
Tighter node spacing
Quicker transition to flower
Less heat to move

 

[iHearAll]

idk. it works for and i have nothing to compare it to but the sky is indeed black.

 

[BobCajun]

Of course it "works". 12 hours, or actually 13 with the one in the middle of the night, is enough for fairly healthy plant growth, as shown by the flowering cycle "working". But does it produce as much growth as say 18/6? I maintain that it does not.

If a person doesn't care that much about growth rate and just wants to save on power then the gaslight routine probably makes sense. But obviously if 13 hours produced as much growth as 18 then so would 15 or 16, which would also prevent flowering just like gaslight. So why would anybody use 18 hours instead of 15? Because studies have shown that it produces more growth. So it's a matter of what your priorities are, power savings or growth rate. RM3's priority is apparently power savings.