LED and BUD QUALITY

[Ca++]

I have not seen a positive test result from UV or Blue light use. With the use of Blue getting more and more bad press. Perhaps the Agrobars have something else going for them?

The phosphors used in lighting, are a bit like a filter. Looking at the flo is a good start. It originally used mercury as a gas discharge lamp. Which is a predominantly UV light. The white coat we see looking at a flo, is the phosphor. The UV wasn't meant to make it through. The UV photon carries a lot of energy, which excited the phosphors. They in turn glow.

With the LED is makes sense to start with blue, as it's the highest power photon in white light. As it does work, it's loosing energy, or having it's energy divided up, which in either case is shifting blue towards red. If instead we started with red, than making blue would be challenging. Though two reds do make a blue in energy terms, I'm not sure that a phosphor getting a pair of reds would get excited enough to make blue, without loosing energy before then. Such as green.
There are some basic phosphors used, and some rare one's. The pinnacle of office lighting was the tri-phosphor lamp for good colour rendering. Three? that's not particularly impressive. Not when lighting companies are now making proprietary blends to try and work specific bands only.


Stoned moment: Imagine feeding the right phosphates for a plant to light itself. Perhaps in a microwave. Or with sun spot activity.

 

[Crooked8]

I have not seen a positive test result from UV or Blue light use. With the use of Blue getting more and more bad press. Perhaps the Agrobars have something else going for them?

The phosphors used in lighting, are a bit like a filter. Looking at the flo is a good start. It originally used mercury as a gas discharge lamp. Which is a predominantly UV light. The white coat we see looking at a flo, is the phosphor. The UV wasn't meant to make it through. The UV photon carries a lot of energy, which excited the phosphors. They in turn glow.

With the LED is makes sense to start with blue, as it's the highest power photon in white light. As it does work, it's loosing energy, or having it's energy divided up, which in either case is shifting blue towards red. If instead we started with red, than making blue would be challenging. Though two reds do make a blue in energy terms, I'm not sure that a phosphor getting a pair of reds would get excited enough to make blue, without loosing energy before then. Such as green.
There are some basic phosphors used, and some rare one's. The pinnacle of office lighting was the tri-phosphor lamp for good colour rendering. Three? that's not particularly impressive. Not when lighting companies are now making proprietary blends to try and work specific bands only.


Stoned moment: Imagine feeding the right phosphates for a plant to light itself. Perhaps in a microwave. Or with sun spot activity.

UVs impact has been studied at length and is clearly ineffective at increasing cannabinoids, terpenes or yield. However, Blue wavelength diodes in more abundance anecdotally are consistently showing me better morphology and yield vs leds that didnt have them. Just my experience.

 

[Ca++]

UVs impact has been studied at length and is clearly ineffective at increasing cannabinoids, terpenes or yield. However, Blue wavelength diodes in more abundance anecdotally are consistently showing me better morphology and yield vs leds that didnt have them. Just my experience.

I would never doubt your experience bud. I imagine the blue is giving you a more squat grow. Making better use of your space or time for training. The number of leads reaching out far from the canopy should be reduced, allowing a more uniform lighting approach. I'm guessing these are the scenario's you are taking advantage of?

 

[Crooked8]

I would never doubt your experience bud. I imagine the blue is giving you a more squat grow. Making better use of your space or time for training. The number of leads reaching out far from the canopy should be reduced, allowing a more uniform lighting approach. I'm guessing these are the scenario's you are taking advantage of?

Things stack better and its easier to have a uniform canopy for sure. The blue light and enough drybacks early on seem to be the ticket these days.

 

[Cerathule]

Do you have you sources for that?

For what?

 

[kro-magnon]

and of course u need to grow indoors under a lig

i have been in the uk probably 50times...LUV IT.... but u guys can sell the seeds... u just can't grow em... weird laws... and not just in the uk...

Your country had some pretty stupid laws as well and many states have still prohibitive laws. A lot of growers around the world have to be creative to grow safely. I find very condescending you look down on growers who have to do their best to grow in adversaries conditions and I don't speak of all growers who lives where the climate does not allow to grow outdoor.

 

[Hammerhead]

I haven't been able to grow outdoors in over a decade.. Its not for not wanting to. Where I live there are no backyards.

HLG Diablo
Haze dom genetics 51 days today ..

 

[kro-magnon]

I haven't been able to grow outdoors in over a decade.. Its not for not wanting to. Where I live there are no backyards.

HLG Diablo
Haze dom genetics 51 days today ..
View attachment 18846570

View attachment 18846571

Same for me I live in a city in a 3 rooms apartment no personal garden so even if the law allowed me to grow which is not the case I could not have plants outdoor. And the climate where I live is very wet very often(less and less recently) so it's mould city for a lot of outdoor growers here who take the risks.
When I was in south of France I could do some nice crops outdoor, I'll return there in a few years and I really hope the law will be different.

 

[Hammerhead]

I live in Cali where it is legal but there are still laws about growing outdoors. Plants cant be seen from the street and must be in an enclosed yard.

 

[moose eater]

In Alaska, by law, plants aren't supposed to be publicly visible.

Unanswered gray-types of questions such as those pertaining to the viability or legality of 'smoked' or translucent greenhouse paneling and legislators who pass laws without being able to think very deeply or creatively/abstractly about the subject they're passing laws about, never mind often having no experience or knowledge of the subject matter.

But for years as an indoor grower, who only had a few plants over the years outdoors, at least 2 of which were surprises to me, and particularly during the period of time the State was violating the 1975 Ravin Decision and messing with people, my rule was relatively firm; if growing indoors, don't advertise by growing outdoors. and if growing outdoors, don't create increased risk by having more weight indoors.

Similar reasons for not doing retail if you're doing wholesale. Too many lines in the water means you're apt to catch too many fish, and in some instances, that's not a positive metaphor.

 

[zachrockbadenof]

Your country had some pretty stupid laws as well and many states have still prohibitive laws. A lot of growers around the world have to be creative to grow safely. I find very condescending you look down on growers who have to do their best to grow in adversaries conditions and I don't speak of all growers who lives where the climate does not allow to grow outdoor.

can u fukin read??? i thought i said 'not only in your country'...

 

[Hammerhead]

IMO UV is more helpful in helping plants fight off molds. There was a test done that too much UV would be detrimental to all plant life not just cannabis. I do think UV plays a role in plant health. I don't belive UV adds resin or improves terps in any way.

 

[kro-magnon]

can u fukin read??? i thought i said 'not only in your country'...

Can you fucker? That's not the main point.

 

[moose eater]

Do you ever get the sense in some of these threads that folks maybe aren't smoking enough of their own product? Or maybe need to grow a better product?

Of course, there's always Lorazepam.

 

[Hammerhead]

I could sware I already posted that Cannabis doesn't grow headless trics, must be in the other LED thread.. It's not the light that is causing the heads to go missing lol. It's from Bad handling or removed on purpose. Ive never seen any grow no heads in 50 years.

 

[Cerathule]

I could sware I already posted that Cannabis doesn't grow headless trics, must be in the other LED thread.. It's not the light that is causing the heads to go missing lol. It's from Bad handling or removed on purpose. Ive never seen any grow no heads in 50 years.

Yeah they always grow but then they keep exploding, maybe from too much ammoniumnitrate fert or gunpowder for +P

 

[Ca++]

IMO UV is more helpful in helping plants fight off molds. There was a test done that too much UV would be detrimental to all plant life not just cannabis. I do think UV plays a role in plant health. I don't belive UV adds resin or improves terps in any way.

Further to this point of view, cuttings treated with UV, seems to be about as much UV as we need. Just a bit of a scrub clean after that initial battle where they had poor health (like an open wound where roots should be). A good start in life is what we build upon. Cuttings done in a co2 rich environment also do better for life, it used to be said.

 

[JKD]

The little known ‘terrorist mite’.

 

[WingzHauser]

IMO UV is more helpful in helping plants fight off molds. There was a test done that too much UV would be detrimental to all plant life not just cannabis. I do think UV plays a role in plant health. I don't belive UV adds resin or improves terps in any way.

Solacure has a money back guarantee.

No more gross greenhouse tomatoes: Study finds way to alter the taste

Purdue researchers have solved the mystery of the terrible tasting greenhouse tomatoes. The team found a lack of ultraviolet (UV) light stresses plants and alters their flavor. But artificial UV light can fix it.

www.dailymail.co.uk

Any frequency can be too intense. Leaves in this tent were touching quantum boards for a week after stretch, until I decided to bypass the hangers with S hooks and gain 6", at which point the tops actually started growing.

(One way to speed up your lowers I guess.)

So full spectrum horticultural led only needs 6-8"of headspace. But if I ran UVB at that height, I could only run it for a minute or two at a time. I'll run 10000K instead.

When the plants first touched the lights my reaction was to spray them with zincmag. I'm kinda stupid in that way, thinking every problem can be solved with nutrition. Most problems can be. When I started under led my plants were purple and not skunky. The same cuts were green and skunky outdoors. Perhaps when you get rid of one antioxidant mechanism (anthocyanin) the plant calls upon another (thiols). People claim purple stems are normal, or from light burn at 30". There's a reason everyone thinks purple stems are normal or that led lights need to be dimmed. Everyone wants to run a Cannabis nute company or be a Cannabis consultant, yet no one wants to know about nutes or cannabis before doing so. I have heard of a organic soil producer with a special LED blend. Click on the Instagram, purple petioles everywhere,with lights wasting away on the ceiling... Unintentional lollipop, probably dimmed also..


Too long didn't read:

Led with proper nutes = good. Led with improper nutes = bad

UVB with proper nutes and spacetime parameters = good. UVB with improper nutes and spacetime parameters = bad

 

[Crooked8]

Yeah they always grow but then they keep exploding, maybe from too much ammoniumnitrate fert or gunpowder for +P

I doubt this highly. Is there an article or study that shows them “exploding”?