Randomblame

Well-Known Member
for years i wanted that clw 440 with the tubes on each side, but none of the shops around me carried it. i wonder what bulbs they used? how long do you think it will be before the arcadia bulbs start to deteriorate the plastics & fibers in the tent?

They use 2ft Solacure Flowerpower bulbs which is the strongest UVB bulb with the right UVB to UVA ratio. At least 5 times stronger like reptile bulbs and their spectrum reach down to 285nm. That means 1-2h are enough and more would damage the plants already. Reptile bulbs go down to ~290nm and to compensate that you need just more time.

@Or_Gro
μW/cm/h multiplied be 0,036 gives you kJ/m². Lets say you have 6h with 100μW/cm² measured on the meter. Thats 600 per day x 0,036 = a dose of 21,6kJ/m². With only 3h it would be 10,8kJ and with 10h á 100μW/cm² the dose would be 36kJ/m². You only have to remember the multiplier 0.036...
 

Or_Gro

Well-Known Member
Sounds like you would need to harvest a few weeks early to extract it before it starts turning into CBD and THC.
i’m looking at them purely from a precursor perspective...there is a good chance of a benefit in increasing quantity, not just %, of thc, when used with uvb....check out chem analysis for change in cbg/cbga under uv, in agricultra article...

But, i had you in mind, when i saw the discussion on medical bens.

UVB increases thc%, but not cbd%; so, since cbg ia also a cbd precursor, there must be a different way to potentially boost cbd when excess cbg is available (maybe start by eliminating uvb, to reduce thc production, leaving more cbg available for conversion to cbd).
 
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Or_Gro

Well-Known Member
They use 2ft Solacure Flowerpower bulbs which is the strongest UVB bulb with the right UVB to UVA ratio. At least 5 times stronger like reptile bulbs and their spectrum reach down to 285nm. That means 1-2h are enough and more would damage the plants already. Reptile bulbs go down to ~290nm and to compensate that you need just more time.

@Or_Gro
μW/cm/h multiplied be 0,036 gives you kJ/m². Lets say you have 6h with 100μW/cm² measured on the meter. Thats 600 per day x 0,036 = a dose of 21,6kJ/m². With only 3h it would be 10,8kJ and with 10h á 100μW/cm² the dose would be 36kJ/m². You only have to remember the multiplier 0.036...
You da man, RB! Thx

So my numbers:
45uW/sq cm at wall, 80 at other edge
—> (45 + 80)/2 = 62.5 uW/sq cm average

6 hrs x 62.5 uW/sq cm = 375 uW/sq cm per day

375 uW/sq cm x 0.036 = 13.5 kJ/sq meter...this is at the top end in
https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1751-1097.1987.tb04757.x

Thinking of adding another hour, which would add another (62.5 x 0.036) = 2.25 kJ/sq meter, or 15.75 in total.
 

StickyBudHound

Well-Known Member
i’m looking at them purely from a precursor perspective...there is a good chance of a benefit in increasing quantity, not just %, of thc, when used with uvb....check out chem analysis for change in cbg/cbga under uv, in agricultra article...

But, i had you in mind, when i saw the discussion on medical bens.

UVB increases thc%, but not cbd%; so, since cbg ia also a cbd precursor, there must be a different way to potentially boost cbd when excess cbg is available (maybe start by eliminating uvb, to reduce thc production, leaving more cbg available for conversion to cbd).
From a cursory search, I'm finding agreeance on the web that there's no known way to increase CBD production levels in a plant beyond what it is genetically capable of producing. The best you can do is buy seeds for strains bred to have high CBD and low THC. There are ways to increase the CBD content to the maximum the plant is capable of producing.

"While you can’t force a plant to produce more CBD than it is genetically capable of, you can coax it into producing the maximum possible amount.

In a 2011 study* by Sikora, Berenji, and Latkovic, researchers looked at six years’ worth of data on the growth of industrial hemp. They found that there were specific growing conditions associated with CBD-rich plants (though it is important to note that while the study was both lengthy and detailed, it only tested 20 samples).

Assuming you choose seeds with the right genetics, your next step is to ensure your plants are in soil that is warm approximately 5 cm down. Also, the more precipitation the hemp was exposed to in the 2011 study, the lower the CBD content. Overall, make sure your growing room temperature is between 68 and 70 degrees Fahrenheit, and when it comes to watering, err on the side of caution."

That doesn't mean some process like addition of UV light at some level couldn't help produce more. Just that there isn't any such info available. It will probably end up coming from science minded growers like you, OG.

https://www.marijuanabreak.com/how-to-grow-high-cbd-marijuana-strains
 

Or_Gro

Well-Known Member
From a cursory search, I'm finding agreeance on the web that there's no known way to increase CBD production levels in a plant beyond what it is genetically capable of producing. The best you can do is buy seeds for strains bred to have high CBD and low THC. There are ways to increase the CBD content to the maximum the plant is capable of producing.

"While you can’t force a plant to produce more CBD than it is genetically capable of, you can coax it into producing the maximum possible amount.

In a 2011 study* by Sikora, Berenji, and Latkovic, researchers looked at six years’ worth of data on the growth of industrial hemp. They found that there were specific growing conditions associated with CBD-rich plants (though it is important to note that while the study was both lengthy and detailed, it only tested 20 samples).

Assuming you choose seeds with the right genetics, your next step is to ensure your plants are in soil that is warm approximately 5 cm down. Also, the more precipitation the hemp was exposed to in the 2011 study, the lower the CBD content. Overall, make sure your growing room temperature is between 68 and 70 degrees Fahrenheit, and when it comes to watering, err on the side of caution."

That doesn't mean some process like addition of UV light at some level couldn't help produce more. Just that there isn't any such info available. It will probably end up coming from science minded growers like you, OG.

https://www.marijuanabreak.com/how-to-grow-high-cbd-marijuana-strains
Thanks dude!

8C129F33-3B95-4940-ACA2-69B030FB2D2E.gif
 

Ibn Vapin

Well-Known Member
Woo man. Just now starting to get over a medication-induced sickness. I swear to baby Jesus, that the time I was 5 with the flu when me and mama were holding fucking hands and taking turns puking...it was way worse than that :(. Never let a dumbass tell you to increase the dose on a med that's making you sick!! I'm down to 18+ pounds lost over a few weeks. -.- Buck that part of the system!!

Ngl I was so sick I could t even bring myself to smoke any fucking weed. -.- getting better now though. I'm still on the 96 train. I've seen how those bitties yielded for me. I'm confident that OG's will yield appropriately too.
 

Or_Gro

Well-Known Member
Woo man. Just now starting to get over a medication-induced sickness. I swear to baby Jesus, that the time I was 5 with the flu when me and mama were holding fucking hands and taking turns puking...it was way worse than that :(. Never let a dumbass tell you to increase the dose on a med that's making you sick!! I'm down to 18+ pounds lost over a few weeks. -.- Buck that part of the system!!

Ngl I was so sick I could t even bring myself to smoke any fucking weed. -.- getting better now though. I'm still on the 96 train. I've seen how those bitties yielded for me. I'm confident that OG's will yield appropriately too.
Hey man, hope you’re movin in the positive now...
 

mr. childs

Well-Known Member
They use 2ft Solacure Flowerpower bulbs which is the strongest UVB bulb with the right UVB to UVA ratio. At least 5 times stronger like reptile bulbs and their spectrum reach down to 285nm. That means 1-2h are enough and more would damage the plants already. Reptile bulbs go down to ~290nm and to compensate that you need just more time.
what do you believe is the right ratio percentage wise? or what is the ratio of the solar cure? i remember these https://www.solacure.com/horticulture.html
found it (34% UVB/66%UVA 280nm-380nm)
 
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