Mau5Capades: builds & grow journal

Lmao gas lamp tech does not work very well. In fact it slows growth tremendously. Been there done that. . Best results come from mimicking nature. You will learn that the hard way
 
hyroot said:
Lmao gas lamp tech does not work very well. In fact it slows growth tremendously. Been there done that. . Best results come from mimicking nature. You will learn that the hard way
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GLT is drastically different in that it artificially splits a flowing length dark period while not reducing the daylight duration.

@Stephenj37826 has a solid and independently verified theory to support his approach. I intend to try it- and for what it's worth, I've also tried GLT and I agree with your assessment of it.

Gas Lantern Techniques' chief advantage is its ability to prevent full on flowering of photosensitive species in winter, so it's really more of a greenhouse technique than anything helpful from an indoor standpoint.

You'd have realized this yourself if you'd quit hating long enough to think clearly.
 
hyroot said:
Lmao gas lamp tech does not work very well. In fact it slows growth tremendously. Been there done that. . Best results come from mimicking nature. You will learn that the hard way
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I always used the same amount of daylight hours just split up. I've run 6 3 several cycles and in my experience is faster and closer internodal spacing. Gas lamp is different in that you aren't providing the same amount of light as 18/6 in a given 24 hr period. Also 18/6 isn't quite natural is it?
 
Stephenj37826 said:
Plants photosynthesize most efficiently the first 6-8 hours of daylight.
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Where did you get that from? All normal diurnal photosynthesis cycles I saw showed peak photosynthesis in the middle of the day and less at the start and end.

Fig%20Gei%205[1].jpg
http://biology.mcgill.ca/Phytotron/LightWkshp1994/1.1 Geiger/Geiger text.htm

I see this in the charts from the data logger of my own grows as well. The plants drink a lot more water in the middle of the "day" than at the start and end.
 
ttystikk said:
GLT is drastically different in that it artificially splits a flowing length dark period while not reducing the daylight duration.

@Stephenj37826 has a solid and independently verified theory to support his approach. I intend to try it- and for what it's worth, I've also tried GLT and I agree with your assessment of it.

Gas Lantern Techniques' chief advantage is its ability to prevent full on flowering of photosensitive species in winter, so it's really more of a greenhouse technique than anything helpful from an indoor standpoint.

You'd have realized this yourself if you'd quit hating long enough to think clearly.
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I
Glt is flower but what you are doing in veg is basically the same thing. It's not hating when what I say is fact. I've tried it. And it doesn't work. Alot of times theory or math on paper doesn't quite work the same in reality..

When you do this tech all that happens is the plants think it's shorter days towards fall. Some strains will start flowering in veg right away. Some will take longer. If you go less than 16 hours of light.

Also stretch will be much more too. With less nodes.

Take it or leave it. It's a waste of time and plants. Savings is minimal.
 
Stephenj37826 said:
I always like to run 6-2. Never really tried the other way though sounds interesting. A friend of mine had limited circuits so I told him to run a cfl on 18/6 and run his 400 mh 12 hours when his bloom lights where off. he said it worked out perfect.
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Yeah 6/2 is a good idea, or 5/3 to save more power. I'm going for maximum power savings with the 3/3 though. So far so good.
 
Stephenj37826 said:
I always used the same amount of daylight hours just split up. I've run 6 3 several cycles and in my experience is faster and closer internodal spacing. Gas lamp is different in that you aren't providing the same amount of light as 18/6 in a given 24 hr period. Also 18/6 isn't quite natural is it?
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That's not running the same amount of day light. That just makes the plants think it's shorter days. After 2 hours the plants goes into its phytochrome state. Which is full sleep mode. Like rem sleep for us. If using 730's the plants will go into phytochrome state in minutes.
 
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wietefras said:
Where did you get that from? All normal diurnal photosynthesis cycles I saw showed peak photosynthesis in the middle of the day and less at the start and end.

View attachment 3570669
http://biology.mcgill.ca/Phytotron/LightWkshp1994/1.1 Geiger/Geiger text.htm

I see this in the charts from the data logger of my own grows as well. The plants drink a lot more water in the middle of the "day" than at the start and end.
Click to expand...
No, those charts are from experiments where they replicated a natural day, meaning starting with low PPFD and rising to a maximum in the middle (noon) and then declining. Good article though. Glad you posted it. Lots of good stuff in that one. For instance it shows how plants use all light between about 400-680 with just a slight dip in the mid 500s. It's not as concentrated in the blue and red spectrums as many believe.
 
nogod_ said:
This autoflower/alternative day length discussion is really tedious.

Neeexxxxxtttt.

Growmau5 please save your thread from mediocrity with another compelling video.
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But IS it? Because what if Growmau5 were to veg his plants with a non-diurnal light cycle and found it was more energy efficient? Or what if he grew some autos? Those are both new territory for mau5.
 
hyroot said:
That's not running the same amount of day light. That just makes the plants think it's shorter days. After 2 hours the plants goes into its phytochrome state. Which is full sleep mode. Like rem sleep for us. If using 730's the plants will go into phytochrome state in minutes.
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I understand my theory from my observations is the 2 hours the light isn't running gives the plant am opportunity to build up the appropriate nutrients back into the leaves. Have you ever used optic foliar? Notice how the leaves stand back up when you use it mid day or later. The loss of photosynthetic efficiency is real. Just try it in a side by side with high PPF levels and you'll see what I'm talking about. Also when I say aggressive veg a 400 watt bulb in an og is very focused in a small area. It really only covers a 2x2 and is as intense in that area as a 1000 in a horizontal style hood over a 4x4. I've seen broth of 6+ inches in a 24 hr period a few times..... It could be placebo I suppose lol.
 
wietefras said:
That will work if you use very high PPFD levels, but if you stick with normal light intensity levels around a maximum of 800umol/s/m2 then you don't see this collapse in photosythesis.
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Do you guys calculate DLI (daily light integral) requirements yet?
 
I'm thinking about dimming and boosting the lights to create a light intensity curve like the sun would do in nature. ie less light in the "morning", most in the "afternoon" and then less again before "nightfall". The plants would get the same DLI, but I would vary the intensity over the day.

I would need to do that side-by-side though, because I doubt the differences would be big enough to be properly visual when done in sequential grows.
 
wietefras said:
I'm thinking about dimming and boosting the lights to create a light intensity curve like the sun would do in nature. ie less light in the "morning", most in the "afternoon" and then less again before "nightfall". The plants would get the same DLI, but I would vary the intensity over the day.

I would need to do that side-by-side though, because I doubt the differences would be big enough to be properly visual when done in sequential grows.
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So can you use an arduino to control the dimming pot on a mean well driver?
 
I got inspired from the @Growmau5 DIY YT Videos and like to build my own DIY LED Panel.
But i'm pretty new to DIY. So I need some help please. (And sorry for my Englisch. It's not my main Language!)

I like to build my Panel with:
5x CXB3070 3500k
5x Ideal Holder
1x HLG240H-C1400B
5x Alpine 11 Plus OR Alpine 64 Plus
1x Universal NT for the Alpine

What ya'll think about the parts?
Does it work out with the 5 CXBs and just 1 HLG240H-C1400B ?? I think that's my biggest concerns!

Which Alpine works "better" with the Ideal Holder?

Thanks in advance!!
 
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