UVB bulbs...

[Guest]

Hiya mess

Good post, thanks for that. I plan to do this fairly methodically to figure out what effects different wavelengths have. I may well add some 310nm UV LEDs at a later date, they are bloody expensive as they are a specialist item, but that is a fair ways off yet as I have many months of experimenting with the UV sources I currently have. Add into that my experiments with blue light during flowering (440-470nm) and with phytochrome-fr forcing using 735nm and I have a long road ahead of me, but I;m sure I'll enjoy the journey!

 

[gramsci.antonio]

i think that a 40$ neon UVB lamp would be more effective, efficient and cost/effective.

 

[Guest]

Cheers for the haughty arrogant reply again, you always know better, don't you? Go back and re-read the last few posts. I'm using specific wavelengths to see their effect, begining with 365nm, 380nm, 390nm, 400nm, 410nm, once I have explored these I may move on to UV-B.

 

[lilo]

...hhhhh....

...Why would I lie ?????

I don't know, people just do it for whatever or no reason. Not calling you're a liar, but come on, there are people growing bushes in bottles with no roots in them and great tasting moldy buds

I never said plants in veg never have trichomes, mate. That's just not what I said. What I said/ment was - plants in veg without trichomes (visible).

Post some pics mate, it'd be cool to see those trichomes; still I'm not sure if it will explain everything cos I know stems do have high to them as well. I think it is a little more complicated then just trichomes although I know looks can be deceiving.

I won't be picking up a microscope just waste of cash for me and I'm so tired to waste cash on growing bells'n'whistles and see no real improment. This subject is purely entertainment to me because I'm already done with the uvb lighting and will not go there again all sold to a reptile freak. Let those mad scientists with unlimited funds do the experiments. One thing I know those experiments almost never get finished and results never posted

If I was to add 200w hps to my setup I'd get at least real 100gr or so of more bud per harvest and with reptisun uvb... well, noone in my family detected any improvement in smoke.

 

[gramsci.antonio]

Cheers for the haughty arrogant reply again, you always know better, don't you? Go back and re-read the last few posts. I'm using specific wavelengths to see their effect, begining with 365nm, 380nm, 390nm, 400nm, 410nm, once I have explored these I may move on to UV-B.

The only arrogant is the one who doesn't follow the advice of the wiser.
Moreover since i started the post saying: "i think".

Edit: i spent i don't remember how many words trying to explain the destructive interference, but still there's some moron that prefer to think with his cock rather than with his brain.

And you look more dumb, since i pointed you that you were using the wrong frequencies a long ago.

I'm out of this thread, keep on going with your medieval form of science.

Hey, why don't you start experimenting using the philosopher stone?

 

[messn'n'gommin']

Although, I have little faith these links will put a stop to the red-faced, jaw-clenched, maniacal screaming, I would hope, at the least, that it gave us pause to reconsider long held assumptions and beliefs.

This link takes you to the Beckley foundation's bibliography page and clicking any of the links will take you to the foundations home page, and you can make your search for that particular article there.

http://www.beckleyfoundation.org/librarycontents.html

This one is the IHA's archived issue's page and has some real nuggets of info, other than hemp, concerning the biological, historical, anecdotal, and medicinal qualities of Cannabis sativa L.

http://www.internationalhempassociation.org/jiha/index.html

Namaste, mess

 

[Guest]

The only arrogant is the one who doesn't follow the advice of the wiser.
Moreover since i started the post saying: "i think".

Edit: i spent i don't remember how many words trying to explain the destructive interference, but still there's some moron that prefer to think with his cock rather than with his brain.

And you look more dumb, since i pointed you that you were using the wrong frequencies a long ago.

I'm out of this thread, keep on going with your medieval form of science.

Hey, why don't you start experimenting using the philosopher stone?

Oh, I forgot you are an incredibly wise mathematical genius, oh hang on, no you're not you're just an egotistical arrogant twat, so fuck off back to writing down old rap lyrics and leave the people who actually grow weed to do their thing.

Wrong frequencies? I don't think so, have you ever bothered to look at a photosynthetic spectral chart?

Look at how high the rate of photosynthesis is between 380 and 420nm, so go on, tell me again I'm using the wrong wavelengths!

Exposing plants to 310nm UV-B is a completely different experiment, and as to you comments about using a $40 neon lamp instead, that would not allow accurate experimentation as it emits radiation in a fairly broad range whereas LEDs emit in a narrow band allowing accurate and detailed experiments.

Anyways, fuck off back to your maths books you arrogant fuckwit, why you hang around a ganja forum in the first place is beyong me cos all you do is criticise others, knobhead!

 

[gramsci.antonio]

i'm sorry, i'm just a dickhead

Don't worry pasha, nobody is perfect

This doesn't mean you can't change for the better

Good luck bro, the quest for becoming a better person follow a quite hard path, but i'm sure you'll succeed.

 

[Guest]

I tell you what, I'll declare a truce till the results of my experiments are in then we can debate some real results rather then theorising.

Becoming a better person is something all of us should work on every day...

 

[marijuanamat]

There's a 300w UV-B light called ultra-vitalux and a few smaller more effeciant models which zoo's use.

 

[Guest]

I think 300w of UV-B would be overkill, but thanks for the info. I'm thinking a small number of high power 310nm LED emitters is what I will eventually purchase, that way I can study the effects of 310nm UV-B seperately from the study of the effects of 380-410nm UV-A.

 

[gramsci.antonio]

I tell you what, I'll declare a truce till the results of my experiments are in then we can debate some real results rather then theorising.

Becoming a better person is something all of us should work on every day...

that's quite a honorable choice.

 

[dontstepongrass]

glad to see u guys finally(i hope?) squashed this arguing. let's stay to personal experiences and such.

lilo - no noticed difference at all? how were you implementing it?

 

[Jalisco Kid]

You can read up on Raphael Mechoulam research on uvb and thc. You can check out Phillipp's 100w uvb and I beleive it is at 316 or 324 nm. JK

 

[dontstepongrass]

so i was in my cab watering today when i had a thought. if uvb rays have effects on humans within minutes (sunburn) what effects would the uvb rays have on any sort of insect that could live with your plants?

 

[ScrogHog]

so i was in my cab watering today when i had a thought. if uvb rays have effects on humans within minutes (sunburn) what effects would the uvb rays have on any sort of insect that could live with your plants?

I am sure it would have a detrimental effect on certain molds and insects but im sure many are pretty tolerant of intense uvb light. Could be wrong im just taking a stab at it.

 

[inflorescence]

so i was in my cab watering today when i had a thought. if uvb rays have effects on humans within minutes (sunburn) what effects would the uvb rays have on any sort of insect that could live with your plants?

From what I gather in this thread, pretty much all commonly used growing lights hardly produce any uv if at all so all this thread is talking about is adding uv JUST to get it back to where sunlight would fall.

This means adding uv will just replicate the sun and whatever can live under the sun will live under this additional uv.

The reason I think UV works as a good sterilizer of water in hydro (for instance) is because most of those bacteria aren't ever exposed to uv so it kills them pretty quick and the amount of uv in hydro water sterilzation is way higher than the sun so it can't be compared to what we are talking about here.

 

[messn'n'gommin']

I believe that the UV that is used for sterilization purposes are in the UVC range. That is why science kicked up such a fuss a few years ago when the ozone layer seemed be thinning. The ozone prevents most if not all UVC from reaching the earth. No ozone, no life.

Namaste, mess

 

[inflorescence]

I believe that the UV that is used for sterilization purposes are in the UVC range. That is why science kicked up such a fuss a few years ago when the ozone layer seemed be thinning. The ozone prevents most if not all UVC from reaching the earth. No ozone, no life.

Namaste, mess

Thank you.

I humbly stand very corrected.

 

[messn'n'gommin']

Thank you.

I humbly stand very corrected.

My apologies, my response was meant less a correction than a clarification.

Namaste, mess