Experimental Madness - Fun With Photomorphogenesis & Other Things

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nick5311

Well-Known Member
Over on @Emilya Green 's thread I mentioned SuperAngryGuy's amazing work that he's published over on reddit. He's got at least one patent related to what he calls SLT - selective light training. He details a lot of his work there but I wanted to quickly summarize it and turn more people onto this type of light-based training.

For this post, I'll just focus on what he did with blue LEDs in particular. He found that if you keep high intensity blue light on the growing portion of the stem of a plant, that you can get super tight internodal spacing. The rest of the plant get's traditional lighting, but to make this work you have to keep constant blue on the stem. Here's a few pics of the light sticks he made for testing:
BL-sticks.jpeg

BL-sticks-on.jpeg

here's a bean pole that should be feet tall but is instead only 8" tall:
8inchbeanplant.jpg


So, you want to know what can this do with cannabis, don't you?
Here's a Jack Herer he grew with the same method:
jack.jpg


and here's a close up of a skunk that really shows the tight internodal spacing:
nodesperinchSkunk.jpg


I haven't yet had the chance to duplicate this, but I'm working on creating my own light sticks to play with something similar in the future. I'm personally really curious what kind of growth you would get with blue on the stem and red/far-red on the rest of the plant.

I have another experiment running that currently has my attention which I'll detail below.

SAG material I'm referencing:

Reddit - Dive into anything

www.reddit.com
 
nick5311 said:
I'm personally really curious what kind of growth you would get with blue on the stem and red/far-red on the rest of the plant.
Click to expand...
Nick, great posts and thanks for sharing.
I too am curious, when I was growing indoor I had thought about how to "feed" the stem with a separate light, but decided to go outdoor and let nature do it's thing.
Take care my friend
 
garybo said:
Nick, great posts and thanks for sharing.
I too am curious, when I was growing indoor I had thought about how to "feed" the stem with a separate light, but decided to go outdoor and let nature do it's thing.
Take care my friend
Click to expand...
I would love to grow outdoors - it's just not in the cards for me right now.
 
my current mad scientist project has to do with DLI and experimenting with day cycles. Here's a DLI chart you've probably seen:
DLI_chart_LEDTonic.png


I've got a test tote setup where I'm going to attempt to push 30 DLI in 2 hours of light, so that means 4000-5000 PPFD. Seems impossible to do without frying the plant, right? Well, I'm fully exchanging the air every second and the preliminary tests I did last time I had things setup were positive -- the plants could take extreme amounts of light for at least a few hours. What's the point? I want to run 2 on, 10 off along with the 730nm far red trigger to enable me to flower in 10 hours of dark... in essence, attempting a 12 hr day cycle. My seedlings are just about ready to get up-potted and hopefully I'll get this kicked off in the next few days.
 
Hope all is well in your world.

Thanks for sharing this grow with us.

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:Namaste:
 
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