Please lemme know when they are availableRandomblame wrote: ↑Sun Jun 23, 2019 7:08 pmYeah, its important to not use just 285nm without UVA. In nature UVA is always much more like UVB and if you use more UVB like UVA the damaging effect is much higher.unkle_psycho wrote: ↑Sun Jun 23, 2019 4:33 pmWhat the dude in the SETI video was saying was that to activate the stress pathway with 285nm you could use 10% of the power needed for 310nm. He was claiming 375nm was practically useless.TEKNIK wrote: ↑Sat Jun 22, 2019 11:52 pmThis is something that needs to be worked out I guess, I am sure there is a range of too little or too much that needs to be worked out, also spread needs to be worked out.
Or_Gro with his meters will be able to determine what is working best over a few grows.
I should also be able to provide some input regarding this with my meter once I have a UVB module set up.
10Watts of UVB should be plenty to cover a 4X4, maybe one module powered at 1W each per square foot should do it from what I have read.
I think the actual numbers were 0.1mW per cm2 with 285nm, and 1mW per cm2 with 310nm. 4h daily dose.
Randomblame was suggesting there is more involved, then simply activating a pathway, with benefits increasing aside dose.
Even if you look at the Solacure flowerpower spectrum you see only a few % is below 295nm. To create an LED light with its peak at 285nm is pretty easy but to get one that cuts off at 285nm exactly you need to add an additional filter.
A 290 or 295nm diode would have more than enough light in the 285nm range but you could be sure there is no UVC.
285nm is a really dangerous wavelength for plants cuz even in 4000m height there is no light below 290nm and its much easier to make mistakes with with such low wavelength. Imagine the timer gets a defect and does not switch off. With a 295/365nm combo a whole day is probably not a big issue but with a 285/365nm combo you would kill your plants within the same time.
I've a few Agromax pureUV bulbs (75/25% UVB/A) and have tried to use them at my prefered hanging height which is 12-20" but it was simply impossible to not damage the plants. I've even built something I have used as "super-spreader" to reduce the hotspot directly under that bulbs and throw the light back into the reflector to distribute it more evenly but it has not helped enough. Only 2h splitted into 4 treatments with 18-20" was enough to hit my girls so hard that they have immediately stopped growing. ...and they don't have recovered.
The only improvement was an exceptional dense trichome layer but I've lost 30% yield or so.
Leaves of the upper two nodes were rolled up like cigars an looked like zeppelins and the green has changed to an ugly olive. Within a few days this leaves became downright hard and brittle. As if all water has disappeared somehow. They were as hard as glass and they broke like that.
Since then I'm back to the good old reptile bulbs. Yeah, you can safe a lot of energy using Agromax/Solacure bulbs but there is no way to use them with less than 2ft distance and even then you have to be very, very careful. The only way I see is to make them dimmable, either with a dimmable ballast or using a variac and dimm the transformers/ballasts input.
10-14% reptile bulbs need to run 5x longer to cause the same effect which means 4x the energy is wasted but because these bulbs mimic the natural sun spectrum they can not harm the plants in the same way.
Even Solacure developes a T5 bulb currently which has only ~40% of the flowerpower spectrum(with UVB down to 285nm) combined with 60% visible light. One could say, its like a reptile bulb but with a tiny bit true 285nm light. As soon as they are available I'll try to get them because to me it sounds really promising.
2,5h would have the same effect like 1h of the T12 bulb so its a good compromise.
Or_Gro and the epic smackdown
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unkle_psycho
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I think the video was advising using a single 10mw 285nm diode for a regular growspace, and said they managed to do most of their work without damaging plants. I guess that means their power levels were really low.
0.1mw/ cm2 was enough to increase THC by 10%, and some cannabinoids and terpenes by up to 100%. It was also affecting the different aging processes in the bud, including trichomes turning amber faster.
0.1mw/ cm2 was enough to increase THC by 10%, and some cannabinoids and terpenes by up to 100%. It was also affecting the different aging processes in the bud, including trichomes turning amber faster.
"Nothing is true, everything is permitted"
Iirc, thc is the only cannabinoid shown to increase due to uvb, in the study i linked. In my own grow, i didn’t notice any diffs in “bud aging” or in trich ambering.unkle_psycho wrote: ↑Sun Jun 23, 2019 9:29 pmI think the video was advising using a single 10mw 285nm diode for a regular growspace, and said they managed to do most of their work without damaging plants. I guess that means their power levels were really low.
0.1mw/ cm2 was enough to increase THC by 10%, and some cannabinoids and terpenes by up to 100%. It was also affecting the different aging processes in the bud, including trichomes turning amber faster.
Could be they are seeing effects that are specific to their method...and not generalizable.
Like anything I have seen in relation to this plant under different lighting conditions every strain has a different reaction. There is no magic spectrum that suits everything apart from sunlight, it's possible that certain strains will have no benefit at all from running UVB although I suspect that all will have at least a minor benefit.
It's only been the last 10 years that thorough research has really been done relating to spectrum but there are so many strains that it will take another 10 years before spectrum is isolated to strains.
Genetic selection over the past 30 years of what works best under HPS has evolved what is grown indoors alot.
Broad spectrums that have a bit of everything seem to work best for now, we know that heavy red works best for the majority of strains but I really believe that we are missing major developments and I hope to be part of a breakthrough with this.
I believe that spectrum needs to change and should not be set for the entire 12 hours, the only reason this isn't happening is due to cost and complexity. I can't give an answer on how it needs to change either all I can suggest is to look at nature.
An outdoor grow destroys an indoor grow in nearly every aspect, why?
It's only been the last 10 years that thorough research has really been done relating to spectrum but there are so many strains that it will take another 10 years before spectrum is isolated to strains.
Genetic selection over the past 30 years of what works best under HPS has evolved what is grown indoors alot.
Broad spectrums that have a bit of everything seem to work best for now, we know that heavy red works best for the majority of strains but I really believe that we are missing major developments and I hope to be part of a breakthrough with this.
I believe that spectrum needs to change and should not be set for the entire 12 hours, the only reason this isn't happening is due to cost and complexity. I can't give an answer on how it needs to change either all I can suggest is to look at nature.
An outdoor grow destroys an indoor grow in nearly every aspect, why?
Find me on Instagram led_teknik
Starting to get moving on my setups....found some time today to finish my dwc buckets:
8-gal ez-stor bucket (16.25”L x13.25”W x 12.75”H) & lid. The bucket has holes with zipties around the lip, as tiedowns; and airhose holes on one side, about 3” below the top.. The lid has a center hole for a 3” netcup and access holes in diagonal corners (cut to fit neoprene collars).
And wheels:
I spin my buckets 180 each day, to get better coverage below the tops; wheels also make various defol and positioning work easier.
As for bubbles: i use one of these per tent:
In the past i have used a single medium airstone per bucket, last grow i used a pair of large airstones per bucket. I’m hoping to have some time to do a test of the two large airstones setup vs four (one in each corner). If i can get the same molecular oxygen levels with the four airstones, i’ll go with that so the bubbles will be better spread out when the roots fill the buckets.
I don’t generally cool or heat my buckets, they are in a location w concrete floors that generally keeps the water 66-72F.
And wheels:
As for bubbles: i use one of these per tent:
I don’t generally cool or heat my buckets, they are in a location w concrete floors that generally keeps the water 66-72F.
No disrespect intended, but I certainly don’t agree with that last sentence, at least quality-wise; and where i live, a larger yield wouldn’t matter because it would rot before it reached the same level of ripeness as I can get indoors. I also tend to disagree that diff strains frequently present large differences in reaction to similar lighting and growing conditions.TEKNIK wrote: ↑Sun Jun 23, 2019 10:32 pmLike anything I have seen in relation to this plant under different lighting conditions every strain has a different reaction. There is no magic spectrum that suits everything apart from sunlight, it's possible that certain strains will have no benefit at all from running UVB although I suspect that all will have at least a minor benefit.
It's only been the last 10 years that thorough research has really been done relating to spectrum but there are so many strains that it will take another 10 years before spectrum is isolated to strains.
Genetic selection over the past 30 years of what works best under HPS has evolved what is grown indoors alot.
Broad spectrums that have a bit of everything seem to work best for now, we know that heavy red works best for the majority of strains but I really believe that we are missing major developments and I hope to be part of a breakthrough with this.
I believe that spectrum needs to change and should not be set for the entire 12 hours, the only reason this isn't happening is due to cost and complexity. I can't give an answer on how it needs to change either all I can suggest is to look at nature.
An outdoor grow destroys an indoor grow in nearly every aspect, why?
I look forward to seeing what additional benefits you can produce with spectra beyond uva/b, blues, and reds....
Last edited by Or_Gro on Mon Jun 24, 2019 12:10 am, edited 1 time in total.
They're doing great man. All 4 seeds popped. Got 2 Auto Diesel's in from Royal Queen, and then the two Alaskan Purple from Seedsman I guess. Gonna see if I can't work out an 8-line mainline this time with them. I am doing well, still some lingering stomach issues but nowhere remotely as bad as before lol. Still got that appointment on the 12th of July, just wish it would hurry up and be the 12th already I wanna know what's going on in there lol.
Yep, i been thinkin about how hard it is to wait for an apptmt like that...well hopefuly those girls distract a little...only 3 wks now...IbnVapin wrote: ↑Mon Jun 24, 2019 12:19 amThey're doing great man. All 4 seeds popped. Got 2 Auto Diesel's in from Royal Queen, and then the two Alaskan Purple from Seedsman I guess. Gonna see if I can't work out an 8-line mainline this time with them. I am doing well, still some lingering stomach issues but nowhere remotely as bad as before lol. Still got that appointment on the 12th of July, just wish it would hurry up and be the 12th already I wanna know what's going on in there lol.