MARIJUANA CANT BE MEDICAL UNLESS UV LIGHT

[Stonefree69]

I still like MH especially for veg but I think you guys have talked me out of gettin any zoo med reptile uv lights for veg or flower. The main reason I use a MH in flower (with HPS) is for the blue spectrum known benefits and vertical "surround grow" bare bulb puts out more lumens over half of it being reflected - not really to get more UV. Some say 25-33% 3000k or aqua-red type T5 bulbs works great in veg. I won't pay more than $10 a bulb though Plantmax good enough for me...

I like more Indica dominant - but they also say the higher altitudes Indica grew in (the Hindu Kush region) could have adapted to with the higher UV levels there. So Indica could be "uv adapted" just as well as Sativa?

 

[Weezard]

Howzit Yesum?

Your observations are spot on.
The difference is striking.
Not so sure it has anything to do with UV though.

Here's something to consider.
Thanks to our location, us tropical folk do get more UV.

However, we also get more PAR light as well.

It's proportional.
More intense white light?
Mo' betta buds.

That might explain why our seeds grown indoors are more trippy and flavorful as well, in the higher latitudes.

I'm thinking, you can lower your indoor lights until just below the saturation point.

You northern clime folks just can't do that with sun though, yah?
There's a bottom limit dictated by your latitude.

Here in the tropics, we virtually raise the sun, (with shade cloth), to just above the saturation point.

Just thinkin' out loud y'all.
Hope cronicle don't mind.

It's not about right nor wrong, my friends.
This is about figuring stuff out for our mutual benefit.

Aloha,
Weeze

 

[The OrigF/clred]

I agree with Lemongrove.

And will add that I have grown buds with, and completely without, UV A or B.
The buds grown without it were some of the strongest and frostiest bud you'll find anywhere, indoor, or out.
Grown with nothing shorter than 460 nm. blue, and a metric shitload of 660 nm. deep red.

I now use a UV blocker for my greenhouse roofing as I have proven, to myself at least, that UV is not necessary to grow medical quality herb.
What's more it is almost as harmful to plants as it is to unprotected skin.

Also did some experimenting with UVc via a germicidal mercury vapor lamp.
Fried a few limbs with it.
And had a serious loss of potency compared to the un-fried limbs of the same plant.
So, my conclusion, based on experimentation is, sunlight, good. UV, bad.

Responses based on unproven belief systems will be soundly ignored.
But, if you have any science?
Bring it!
We'll talk.

Aloha,
Weezard

"I don't want to believe, I want to know!" --Carl Sagan

Thank you for that - i've asked countless times, in various forums discussing the "greatest newest light with UV spectrum" if anyone had something clinically indicating UV light was a GOOD THING. Usually got ignore but best answer i saw was "......but it's natural!!"

I've googled the hell out of it, and best research i could find was a couple of USDA funded studies that came back with results indicating it was not definitive, but indications were UV light was not good. It does stimulate production of one protein associated with the reproductive process but the study was on agricultural type crops - came back that for the most part, crop production results were negative on use of UV (whether a or b) but that a few strains within the same plant family did exhibit some increased production, exposed 15 minutes per hour of lights on time.

Didn't sound too promising to me - love hearing someone has done some testing in cannabis

multi multi grazi for sharing some empirical experiences / observations

BTW: "...[FONT=Arial, Helvetica, sans-serif]I now use a UV blocker..." [/FONT]you mightwant to look into UV absorbers they capture UV light and refract it to a visible section of the light spectrum. If you weren't living where you are, it'd mean more useable light to the target.[FONT=Arial, Helvetica, sans-serif]
[/FONT]

 

[supermanlives]

get the zoo med but buy a reptile too who will benefit from it from the get go.vit d I think it helped em with . I miss my iguana she was a tough bitch. she scared a chiuaua sp? once when I walked her. ya she had a leash. lol

 

[Rusty Trichome]

Back in the 1990's and 2000's, I played with UV lighting. I used 5.0 and a 10.0 reptile bulbs, actinic's and even tried dragging the little darlings outside daily.

The UV didn't necessarily increase potency, but it did age the affected parts of the plant closest to the source (growing tip leaves and trichomes) a bit quicker...which I guess I could see a novice mistaking it for a benefit. But in the long run...all I was doing was adding heat to an already hot grow room.

If you use any form of supplemental UV lighting...ALWAYS USE PROPER EYE PROTECION. Eye damage is likely permanent.
For those on meds preventing you from direct sun exposure...cover your skin, too. But if you do get skin cancer...look-up Rick Simpson Oil...

 

[Fly by Night]

Indo sho look purty

Indo sho look purty

to get the full 'medical' effect the equator grown has way more heath inducing quality.

 

[sutra1]

Very good! ^^^^^^^^Uv, it works!

 

[Fly by Night]

Proof

Proof

Well oiled UV has magnetic properties, attracting jealous little haters!

 

[Stonefree69]

 

[Ranger]

I've heard Master gardeners say the depleting Ozone layer and increased UV wreaks havoc on food crops aswell and that most food crops actually grow best with shade cloth over them.

that and our sun doesn't produce the same spectrum nor the same output from day to day. perhaps that's something to try although i would venture a guess neither do grow lights.

 

[burmese]

what i know, uv light is maybe not best for the plants, but is very useful for chemical reaction of ,,possibly dangerous chemicals//fertilizers, plants produced semi chemicals//,, to natural plant chemicals//sugars, thc .....//. ----like peoples witamin D
So for ours health is always better with uv,

 

[The OrigF/clred]

[FONT=Arial, Helvetica, sans-serif]Weezard - curious how you grew w/o UV light - i know glass can be had with UV filters built in

tks in advance
[/FONT]

 

[Weezard]

[FONT=Arial, Helvetica, sans-serif]Weezard - curious how you grew w/o UV light - i know glass can be had with UV filters built in

tks in advance
[/FONT]

Don't have to filter out, what is not there in the first place.

I used 660nm. red, and 460nm. blue, LEDs.

While those LEDs do not produce coherent light, they do have a very narrow bandwidth.
The "skirts" on the blue led have close to, 0 UV.

The outdoor greenhouse is roofed with polycarbonate that is designed to filter out UV.

I still get a little bit of direct sun under the eaves, early morning and late evening, but the atmosphere filters out the UV for me then.
A little bit is jus' fine, but our UV index around noon here, is high enough to damage plants, and people.

Aloha,
Weeze

 

[The OrigF/clred]

tks - my brain was locked on PL-L tubes and found studies showing some UV B "leaked" in flourescent bulbs 5000K and up

 

[Garhart]

Very nice.

 

[BlazinPurps]

Thank you for sharing your personal experiences Weezard I appreciate it!

 

[wantaknow]

man that chick is baked!

 

[Rusty Trichome]

When I was actively keeping corals, I tried using the aquarium actinic bulbs (Sunleaves 64w ballasted lights, 460 nm bulbs) in early veg, as supplemental to CFL's. Seedlings stretched like a SOB, had to bury a few inches of stem when I transplanted, or they'd have had to be permanently trained on stakes. Clones didn't seem to give a crap either way. There weren't enough 'garden positives' to continue wasting time and electricity and adding heat.

It's fun to think that there's a magic bullet that will grow us the eternal buzz. But watch for red herrings...

How's your seedlings, Weez...? Standing tall and sucking-up resources?

 

[supermanlives]

red herring would prob be a good striper bait. lol great thread guys,,,,,,, and I don't believe in the magic bullet type thing but am open to new ideas and techniques and science.

 

[cronicle]

Fly by night - the tanning chic hilarious crack up any time I view forget to post who's the two fags in the second is dat the imfa mis GOTTI BOYS --guessing lol