Ummm...if they're outdoors they're getting a better UV light source than any artificial source us indoor guys could hope to provide.

__________________
Your disappointments grow in direct proportion to your expectations.
If you are comfortable with your facts, you should assume I'll be comfortable challenging those facts.

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Aloha RT

The buds were grown under 660/ 470 indoors, No UVb at all
As was the front bud in the third picture.
The girl in the background is a sun grown AK-47.
The foreground is a White Widow grown under leds.

Now that I can get decent sized buds indoors, my concern is potency.
It may be that UVb affects isomerization in a positive way that balances the degradation.
O.M.s a better judge than me 'bout dat.
I get baked on one hit and objective quantification becomes very difficult.

Got some lungs visiting from the mainland soon.
I'll give them numbered samples and try to get a "1-10 scale" answer on potency.

Thanks for the myths link. LC-S knows what she's on about.

Mahalo,
Weeze

__________________
Plants do things for a reason.....they don't just decide one day to get root rot or act funny..... - Weedhound
"Their perception is their reality" - Irydyum

"Gotta keep in mind that people and pot plants are very much alike, how well and when you finish is based on genetics. - O. M.

My attitude? Deliberate Indifference! -Thanks D.H.

http://boards.cannabis.com/plant-pro...anted-one.html

Thanks. Necessity is the mother of invention. Plus, I'm a woodworker and have the tools and stuff.

I have a dual-bulb Sunpaq ballast from coral reefing. Plant's don't do well with just the "dual actinic" bulbs at all, and the times I've tried, quickly switched back to either the dual daylight bulbs, or CFL's. (dual actinics: square 4-pin 32w bulbs, 420nm and 460nm)

I've been giving around 4-6 weeks veg. Any longer veg than that, and in flower the plants will stretch way beyond my 3' effective light range and is pretty much a waste.

I'm all set-up for UV in veg, once the clones root. I do have a couple of mom's in there right now, but way too early to expect a difference.

Weezard: Sorry. The picture of the outdoor plants threw me. A nice nugget in the pocket is always a "10".

__________________
Your disappointments grow in direct proportion to your expectations.
If you are comfortable with your facts, you should assume I'll be comfortable challenging those facts.

Horticultural Myths and Folklore
Fox Farms Feeding Schedule
Dealing With Heat Issues in the Desert
Rusty's Bonsai Re-Vegging
CanCom Troubleshooting Forms

Way to go Rusty, from coral reefing to coral reefer, I love it.

I found the the aquarium people have alot of cool stuff...it's where I first saw the IceCap ballasts for driving fluroescents. Plus I've been impressed with the double ended MH bulbs found in thier hoods to have a much more balanced light foot print then the mogul ended ones commonly used by growers.

And hey, LED moonlights are pretty cool.
(now if I was into lunar cycles, I might just go and try those)LOL

__________________
Don't touch my Willie - Kevin Fowler
Keep it civil please, gentlemen. -stinkyattic
I think people should be educated to the fact marijuana is not a drug. Marijuana is an herb and a flower. God put it here and He wants it to grow, what gives the government the right to say God is wrong? -Willie Nelson

LMAO!

-shake

__________________
"happy trees"

troubleshooting form

"some of my sweets be tight and some of my sweets be fucked up, but all of my sweets gon' blow so killa smoke gets sucked up..." -Bun B

"But, when a long train of abuses and usurpations, pursuing invariably the same object, evinces a design to reduce them under absolute despotism, it is their right, it is their duty, to throw off such government, and to provide new guards for their future security." -Deceleration of Independence

Actually, from coral reefing to coral reefer to reefer madness.

I was told that the double-ended HQI's burn too hot for what I was doing with the corals, so chose the 400w MH's, and made a box to enclose and ventilate it. Meant I could move the ballast, and keep it from adding heat to the tank.

__________________
Your disappointments grow in direct proportion to your expectations.
If you are comfortable with your facts, you should assume I'll be comfortable challenging those facts.

Horticultural Myths and Folklore
Fox Farms Feeding Schedule
Dealing With Heat Issues in the Desert
Rusty's Bonsai Re-Vegging
CanCom Troubleshooting Forms

What exactly is Time Factor? Do you have them per wavelength?
Do I understand correctly you can age a plant faster?
If this is beneficial for the plant wouldn't it use more of these "fast" wavelengths?



When I came across that UVB story I -obviously- really wanted to believe that.
But I was a bit sceptical because all the hype seems to be based on one old research from back in 1987*.

So I did a lot of -desk- research and found out flowers don't look or smell so nice without UVB and also fruit, vegetables, etc don't taste so good. UVB helps to develop the flavour in many ways.
Also insects avoid plants grown under UVB and UVB light itself.
(but they are very attracted to UVA).

That was already good.

Then I came across some articles about crop loss caused by pathogens and so and learned you ALWAYS suffer from croploss. That's why you don't realise it, unless it is worse than normal.
This croploss in greenhouses is about 30% average the last 3 weeks.
So without it your yield would be 42% higher!!!

With UV treatment you can reduce this loss to 0%.
This was demonstrated and resulted in this patent.
The treatment works with every crop.

So I added -real- UVB in my room, because I am convinced it will do good.



* In even older research from 1974 "The cannabinoid content of Cannabis sativa L grown in England" Fairbairn and Liebmann compared 4 groups of the same plant in a greenhouse, greenhouse plus additional light, greenhouse plus additional UVB and outdoors. The first two groups had the same amount of THC, the 3rd group 20% more and the outdoors group 90% more.

Not me personally BUT all nm's have different time factors, some fast and some slow. One example is Red 660nm has one the slowest time factor under the sun and Far Red 730nm has one the fastest time factor. Yes I think the info on separate nm's time factors will be released Halloween 09 by a company called Temporal Photonics.



Yes. (One example is) a grower can almost rippin a flower on command with the proper use of incandescent bulbs (red or clear).





Now with led's, the grower has these separate fast wavelengths at their disposal.. We as growers just need to learn how to use them.

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I love this role playing shit
I didn't make up the rules I just follow them - Dogznova

Last nite marked 9 weeks that the WR has been blooming, and time has run out due to the next batch being ready to go. Usually it takes 7 1/2 to 8 1/2 weeks to finish, this time it had 9 weeks and it was at 90-95% cloudy trichomes with a few still clear, and no amber. Based on this, I believe the following;

1) UVb has a direct relationship on trichome finishing, ie getting them to turn amber.

2) the use of UVb in flowering hastens the finishing times, in this run/strain by at least a week.

Only two things left to do with this experiment, see what the finished dried wgt/plant is and to see if there is any difference in potency. While the second part will be tough work to do, I think I can handle it.

__________________
Don't touch my Willie - Kevin Fowler
Keep it civil please, gentlemen. -stinkyattic
I think people should be educated to the fact marijuana is not a drug. Marijuana is an herb and a flower. God put it here and He wants it to grow, what gives the government the right to say God is wrong? -Willie Nelson

oldmac,

how do you plan to scientifically determine which batch is more potent? Are you going to try and measure out extraction oils or something? Your method intrigues me.

SMG

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Hey Dogznova,

I look forward to someone releasing a chart or something listing the various "speeds of light" or time factors and there effect on plant growth at various stages of the plant's development. I have a hard time wrapping my brain around this, I would love to know why far red is fast yet red is so slow.

Hello Bubbleblower,

Interesting patent you posted, UVc has long been used for both air and water filtering for the very purpose of killing pathogens. The first line of defense in not having crop loss in a greenhouse (or an indoor growing area) is good hygiene. That is running as sterile environment as possible, but difficult when venting a greenhouse to keep spores and such out.

The possiblity that UVb may be the cause of more fragrence in flowers growing may account for the fact that growing with most LEDs causes much less smell problems then when growing under HPS.

Your use of UVb seems well thought out, just keep in mind your safety when using it.

__________________
Don't touch my Willie - Kevin Fowler
Keep it civil please, gentlemen. -stinkyattic
I think people should be educated to the fact marijuana is not a drug. Marijuana is an herb and a flower. God put it here and He wants it to grow, what gives the government the right to say God is wrong? -Willie Nelson

Unfortunately I have no scientific method, just my subjective opinion and my housemate Tonto's. Probably let a few others try this batch vs. last batch.

Already vaped a small bud last nite and I see no major differences in taste but did not try it against the last batch yet. But final taste and potency comparisons will wait till it's dried, manicured and cured.

Having just been thru finding the best of the 10 shiva skunks I grew out to select a mom, I know I'm up to the task. Here it's going to be easy just two samples.

__________________
Don't touch my Willie - Kevin Fowler
Keep it civil please, gentlemen. -stinkyattic
I think people should be educated to the fact marijuana is not a drug. Marijuana is an herb and a flower. God put it here and He wants it to grow, what gives the government the right to say God is wrong? -Willie Nelson

Sooo, my 12 clones have all rooted, and am ready for the 'UV in Veg' attempt. Y'all want me to continue in this thread, or start one fresh?

An unrelated note: I'll likely be slowing-down my contributions here at CanCom for a couple/few weeks. Yesterday morning I was violently shaking a gallon of paint to paint my 12 appartment bird condo, and slammed my hand against the door jamb. (it jumped out of nowhere) Broke my hand. (longest pinky bone after the wrist...possibly the next one over, too) Needless to say it's a real bitch to type. If it get's any more painful, I might have to go get it looked at.

__________________
Your disappointments grow in direct proportion to your expectations.
If you are comfortable with your facts, you should assume I'll be comfortable challenging those facts.

Horticultural Myths and Folklore
Fox Farms Feeding Schedule
Dealing With Heat Issues in the Desert
Rusty's Bonsai Re-Vegging
CanCom Troubleshooting Forms

sorry to hear about your hand rusty. that stinks. it already seems like things are dwindling around here.

maybe it's just the crowd thinning out so some real work can get done?


-shake

__________________
"happy trees"

troubleshooting form

"some of my sweets be tight and some of my sweets be fucked up, but all of my sweets gon' blow so killa smoke gets sucked up..." -Bun B

"But, when a long train of abuses and usurpations, pursuing invariably the same object, evinces a design to reduce them under absolute despotism, it is their right, it is their duty, to throw off such government, and to provide new guards for their future security." -Deceleration of Independence

It would be great if you continued your experiment here, I know I and some others here are very interested in it. Plus maybe we can keep one thread active for UVb discussions.

Really sorry to hear of your accident, those small bones between knuckles and wrist can be a real pain. Broken bones in that area are usually referred to as "boxer fractures" and there is usually not much they can do for it except immobilize it. At one time or another I've managed to to break a few of those, some twice. I understand that mmj has properties that can relieve pain, maybe you should look into that.

__________________
Don't touch my Willie - Kevin Fowler
Keep it civil please, gentlemen. -stinkyattic
I think people should be educated to the fact marijuana is not a drug. Marijuana is an herb and a flower. God put it here and He wants it to grow, what gives the government the right to say God is wrong? -Willie Nelson

There is always an ebb and flow to the boards and right now there are alot of people on vacation, even those non-working types. I lack a housekeeper for the month of August and need to drag Tonto with me everywhere I go scince there is no one to watch him during the day. And that is the perfect excuse for us to take off a few days here and there and visit various casinos. (I'm still paying retribution for the sins of the white man)

Canna dot com may never be as big as it was pre-crash, but there are some good knowledgeable people around and I hope it will survive. Now if I can find where I left my vaporizer, I can get some real work done.
.

__________________
Don't touch my Willie - Kevin Fowler
Keep it civil please, gentlemen. -stinkyattic
I think people should be educated to the fact marijuana is not a drug. Marijuana is an herb and a flower. God put it here and He wants it to grow, what gives the government the right to say God is wrong? -Willie Nelson

Okey Dokey.

Isn't that just radical hippie rhetoric? The aspirin seems to be helping, too. (hope I don't turn hermie)

__________________
Your disappointments grow in direct proportion to your expectations.
If you are comfortable with your facts, you should assume I'll be comfortable challenging those facts.

Horticultural Myths and Folklore
Fox Farms Feeding Schedule
Dealing With Heat Issues in the Desert
Rusty's Bonsai Re-Vegging
CanCom Troubleshooting Forms

I've been lurk'n and read'n but have nothing constructive to add.

Keep this thread going, it's a question I'v been ask'n myself for a couple of decades.

BTW, sorry to hear about that hand.

Broke mine more times than I'd like to remember. Never a fun time, I'm afraid....

M.P.

LMAO!

i understand. and don't get me wrong, i love this place. 'tis home. and i look up to the experienced, knowledgeable growers around here. they are like surrogate big brothers, you included!

i appreciate all the info and wisdom that you guys share.

thank you all.

sorry to come across as ungrateful, because that is the farthest thing from the truth!

-shake

__________________
"happy trees"

troubleshooting form

"some of my sweets be tight and some of my sweets be fucked up, but all of my sweets gon' blow so killa smoke gets sucked up..." -Bun B

"But, when a long train of abuses and usurpations, pursuing invariably the same object, evinces a design to reduce them under absolute despotism, it is their right, it is their duty, to throw off such government, and to provide new guards for their future security." -Deceleration of Independence

still haven't seen anything...to want me to give up my CMH bulb...

Attached Images

young-frankenstein_26.jpg (6.8 KB, 88 views)

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"Consider yo' bad self enlightened, homeslice"-StinkyAttic

I've used the UV bulb in flower for a while (6 months...?) with mixed results. Even within strains. Not sure why, but was informed by a dispensary provider that it would do me better in veg, so I'm giving it a go.

Was real pleased with the positive results directly attributable to the bulb, but since the results varied, was disappointed with results that were less than spectactular. Evidently, your disappointments grow in direct proportion to your expectactions.

__________________
Your disappointments grow in direct proportion to your expectations.
If you are comfortable with your facts, you should assume I'll be comfortable challenging those facts.

Horticultural Myths and Folklore
Fox Farms Feeding Schedule
Dealing With Heat Issues in the Desert
Rusty's Bonsai Re-Vegging
CanCom Troubleshooting Forms

I don't think you should Dutch, right fine bulb to use. Much better spectrum then a regular MH.

Gotta a question for you, I know you start cuts or seedlings under a fluro tube, do you use the CMH to veg with? or just to flower?

BTW you look alot older in your pic there then I would have imagined.

__________________
Don't touch my Willie - Kevin Fowler
Keep it civil please, gentlemen. -stinkyattic
I think people should be educated to the fact marijuana is not a drug. Marijuana is an herb and a flower. God put it here and He wants it to grow, what gives the government the right to say God is wrong? -Willie Nelson

Hi... Mac

I go three weeks under 6500k fluoro tubes...then, I go CMH all the way to harvest.

the grow before that, I went Hortilux HPS all the way. Less stretching with the CMH, about a foot shorter and the CMH ran cooler temps in my closet.

Reflectors play a big part with UV light; I think, too? Not all reflectors are created equal. I think the dimpled ones are better. I have a smooth polished one......and have to 'offset' my plants some; not directly under the bulb....so I rotate daily.

Lots of peeps like the 'warm' 4000k MH bulbs, too....(like sunmaster's for example)

__________________
"Consider yo' bad self enlightened, homeslice"-StinkyAttic

Thanks for that DP, I was real interested because of what Rusty was going to try with vegging using UVb. Since you are not about to give up your CMH I will assume that the overall out come was superior to the HPS.

I think the CMH bulbs have the best spectrum over all of any HID bulb available. Only draw back for some is it's availability in 200w and 400w only; if they made a 600w I'd be trying one by now.
I am very impressed with the SunPulse bulbs that are rated in K temp terms. They make 4 flavors; 3k, 4k, 6.5k & 10k. The 3k is great for flowering but the 10k is loaded with UV.

Recently saw the new "light spinners" from Life Light Technologies, these combined with a mix of SunPulse bulbs seem to be a pretty cool set up for achieving a great mix of spectrums for growing. Almost got me thinking about moving away from my LEDs, but want to try and put 4- TI ProBlooms over a 4'x4' aero/fog tray first to see if I can achieve LED superiority to anything else.

__________________
Don't touch my Willie - Kevin Fowler
Keep it civil please, gentlemen. -stinkyattic
I think people should be educated to the fact marijuana is not a drug. Marijuana is an herb and a flower. God put it here and He wants it to grow, what gives the government the right to say God is wrong? -Willie Nelson

damn, oldmac. that sounds like a pretty nice little experiment! when does the log start?


-shake

__________________
"happy trees"

troubleshooting form

"some of my sweets be tight and some of my sweets be fucked up, but all of my sweets gon' blow so killa smoke gets sucked up..." -Bun B

"But, when a long train of abuses and usurpations, pursuing invariably the same object, evinces a design to reduce them under absolute despotism, it is their right, it is their duty, to throw off such government, and to provide new guards for their future security." -Deceleration of Independence