Trichomes, THC and UVB light.....

Here's a thread, especially for you nat'...

https://www.rollitup.org/toke-n-talk/40948-natmoons-problem-page.html#post431345

Maybe we should rename this section "Advanced Emotion Cultivation"

Hello again,

A quick response to one or two questions. The moonlight lamp I am using is Arcadia's Marine Actinic Blue. It is 60watts I believe, and is designed expressly to simulate moonlight at sea, and to promote photosynthesis in plants and simple organisms. I use it as a supplementary light and at the same range from the plants as my propagator tubes. The light values range between 360/420nm , all their tubes have the values illustrated. They have a range of superb, compact tube lights including daylight simulators(with a UV element) and a VERY trick sodium/mph array in a tank-top housing containing all ballasts and circuitry, including an accurate, robust timer. Plug and play.
All my plants are in good condition with strong growth. I am not much of a photographer, but will post some crap pix soon. Follow my adventures in https://www.rollitup.org/grow-journals/36611-switch-hydroponic.html Happy New Year in the Wonderful World Of Weed

Thanks for that psyclone, I'm going to look into your journal. Although what I will say here is that the only thing that does concern me with these tubes is how close to the plants they will need to be to be effective.

I need power. I'dmuch rather have bought a 400w UV light than a 300w.

I know what you mean, but is power as important as the Lux/Lumen output? for example, LED growlights use nugatory amounts of power compared to incandescant/Fluorescant lights. I would be wary in my set up of using too much power because a lot of that power ends up as expensive heat.
All that being said, of course I wish I had bought a 600-1000watt sodium/MPH, and I probably will.

Heat is fairly easy to get rid of, you just need a place for it to go. I do suffer now and again with heat issues, as i am yet to invest in a proper exhaust system. I run 1200w (3, 400W's) in my flowering area and use 2, 18" desk fans and 1, 7" desk fan to strategically push the hot air out through the grow space.

The trouble with this system is that if i move one of the fans, or turn one of them off by mistake and leave them... the next day i will see leaf curl from too high temp's. Aside from that, I can manage 1200w fairly adequately. I can also only grow 3ft plants, due to height restrictions, so this led to a bit of a nightmare one time growing a sativa strain.

But yes, my attitude is power first, then deal with the side effects. I'd also rather buy a co2 system than an exhaust system. With a regulated co2 system cannabis will thrive better than ever in temps as high as 96f.

psyclone said:

I know what you mean, but is power as important as the Lux/Lumen output?

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One begets the other. It takes power to provide the lumens necessary to provide your plants with good growth.

I think that cannabis has proved time and time again that it is lumens and not spectrum that counts in it's growth development.

skunkushybrid said:

One begets the other. It takes power to provide the lumens necessary to provide your plants with good growth.

I think that cannabis has proved time and time again that it is lumens and not spectrum that counts in it's growth development.

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This is very true,cannabis is highly light/lumen responsive and from what i have been able to tell it will adapt to as much or as little light as you give it.
The more light the better regardless of spectral output

hey everyone....some good discussion. I know wehat I want to do is have 3 x 250W 2-MH and 1-HPS and supplement with decent uvb output on a different timer, that comes of for say 8 of the 12/12 .....

hey psyclone....I'll be looking for your pics in your journal.....thanks for coming on by and answering those questions!

natmoon said:

This is very true,cannabis is highly light/lumen responsive and from what i have been able to tell it will adapt to as much or as little light as you give it.
The more light the better regardless of spectral output

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Natmoon.Thats not true. "the more light the better regardless of spectral output"... I'm calling you out on posting false statements and giving people bad advice. Light spectrum has a LOT to do with growing canibus. This links first post will take you to school on Lighting. Go here https://www.rollitup.org/general-marijuana-growing/723-things-know-about-lighting.html

Hey MB.....I believe that when compared directly across with all other variable being equal.....changing lumen/intensity....is going to make more of a difference than changing spectral properties.....its not that the spectrum is unimportant....it is less important the the intensity.....at least thats what I think....but I'm prolly wrong....(thnks YGF for that!)

munch box said:

Natmoon.Thats not true. "the more light the better regardless of spectral output"... I'm calling you out on posting false statements and giving people bad advice. Light spectrum has a LOT to do with growing canibus. This links first post will take you to school on Lighting. Go here https://www.rollitup.org/general-marijuana-growing/723-things-know-about-lighting.html

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And i am calling you out for being an asswipe.
Retract your comments or i will post the pms that you sent me about skunky.
You misinterpret everything and jump to conclusions and you don't know what you are talking about.

tahoe. why do you say that changing lumen/intensity is more important than changing spectral properties? Are you telling me that force feeding a thousands of lumens to a plant in a spectrum that the plant doesn't use to make food is benificial? Lets say you have an 400w HPS lit up its giving off mostly yellow, orange, and red spectrum.canibus ONLY USES part of the spectrum. Mostly red. as for the yellow spectrum, the plant does NOT use this light to make food AT ALL no matter how powerful it is. Its "wasted" energy.If what you are saying is true, then how come Incanscent lights are so bad for growing? They give off plenty of Lumens, but very little usable light.

munch box said:

tahoe. why do you say that changing lumen/intensity is more important than changing spectral properties? Are you telling me that force feeding a thousands of lumens to a plant in a spectrum that the plant doesn't use to make food is benificial? Lets say you have an 400w HPS lit up its giving off mostly yellow, orange, and red spectrum.canibus ONLY USES part of the spectrum. Mostly red. as for the yellow spectrum, the plant does NOT use this light to make food AT ALL no matter how powerful it is. Its "wasted" energy.If what you are saying is true, then how come Incanscent lights are so bad for growing? They give off plenty of Lumens, but very little usable light.

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You can grow weed in the light of a fireplace it wont do well but it will grow,the bigger the fire the better it will do.
Your the one who doesn't understand what he is talking about and a plant will adapt to the available light as would a human to the available food sources.
Now remove your post slagging me off or i will post your messages for all to see what a prick you really are

natmoon said:

And i am calling you out for being an asswipe.
Retract your comments or i will post the pms that you sent me about skunky.
You misinterpret everything and jump to conclusions and you don't know what you are talking about.

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Your statement was clear, and there is very little room for misunderstanding. If don't know then please explain it to me. That is, if you can without confusing yourself. Go ahead and post all that skunky shit, I've got nothing to hide. This is hardly the forum to do so, but if you feel the need for all that. then do it

thanks MB.....I agree theree are portions of the spectrum that are not as useful as the blue and red portions. My comments are limited to the range of spectrum that the plant does use....i.e., by changing the spectrum from blue to red or vice versa will not make as much of a difference as improving the overall lumen and intensity from say 250W to 600W. the plants under identical "other" conditions will grow better with more light energy directed as either blue or red than a change between blue and/or red light will have at the same intensity.

Nat & MB .... please take this somewhere else.....I am most interested in progressing our debate and discussion....I would prefer that this communication be kept separate. thanks.

psyclone said:

natmoon said:

You can grow weed in the light of a fireplace it wont do well but it will grow,the bigger the fire the better it will do.
Your the one who doesn't understand what he is talking about and a plant will adapt to the available light as would a human to the available food sources.
Now remove your post slagging me off or i will post your messages for all to see what a prick you really are

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munch box said:

Your statement was clear, and there is very little room for misunderstanding. If don't know then please explain it to me. That is, if you can without confusing yourself. Go ahead and post all that skunky shit, I've got nothing to hide. This is hardly the forum to do so, but if you feel the need for all that. then do it

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Just proving that your a lil prick really who don't know what hes talking about,slagging me of because i wouldn't look at your thread when you send me pms saying that skunky is sending people some kind of smear material about me and i find out its all a big lie that you made up to get attention for yourself.
Now your trying to make me angry by stalking me and posting more shit about me into a decent conversation.
I think that you will find that pming saying that skunk is doing this and that talking about me behind me back and sending people shit when he wasn't will make skunky pretty damn angry.
I would be careful if i were you

So you are saying that if I veg under HPS and flower with a MH that I would get the same results if I were to veg w/ MH and flower w/ HPS?

I do not mean to say that.....If I am understanding this discussion correctly, the question to me is what attribute makes a more significant difference in observed growth? - lumens/intensity or spectrum. if you have a situation where you have the exact same plants (clones) and they are grown in 250W vs 600W (say for example MH) the measureable growth differential between the two scenarios would be a greater measureable differential than between 2 grows side by side of the same plants but one in under blue and the other under red of the same lumens. So it is the growth differential observed by the same plants when lumens/intensity are changed versus the growth differential when the specturm is changed. I believe the growth differential from lumens/intensity change would be greater than the growth differential from a spectral change.