View attachment 4804759
^^^Study done by experts, guys with PhD's.
- 25mg THC per 1g of bud at <1KJ/m2/day UVB
- 32mg THC per 1g of bud at ~13kJ/m2/day UVB
32mg ÷ 25mg = 1.28;
28% increase
This study was done decades ago in the 1980's. Tbh UVB and the effect on THC is kinda an old discovery but imo its now gaining popularity again due to increasing legality. MJ hasn't been legal till recently so there hasn't been a push to sell products designed to optimize their cultivation till more recently, ie UVB. All the UV sources currently being used are being repurposed from other industry and devices and aren't specifically designed for MJ, and imo the headache of trying to fit the square peg into the round hole has kept most away from implementing. The upside can be significant (or so its been documented) but you can also fry your plants and hurt your eyes and skin with great ease (and perhaps there's other biochemical pathways being investigated that are safer that achieve the same outcome). Imo manufacturers aren't adding UVB rn due to liability and safety concerns. Also, The cost hasn't been very effective and the longevity is far reduced. There's just a lot of hurdles industry wise before it can become widely accepted. If you do a bit of learning and dig to find the relevant factors then you can implement and design your own UVB system.
- Review photoreceptors and their role
- Understand what absorption, transmittance, and reflectance spectra are
- Understand the difference between energy of the emission vs the energy required by the source
- Understand how to extrapolate relative spectrums into real life data
- Understand UVI and its implications in determining doseage
- Understand what irradiance is and how to calculate
- Understand the relationship between photons and energy, though most of the units that you'll be dealing with will be in terms of energy, so is probably last on the list
Off the top of my head that's kinda what you'd want to familiarize yourself with if you were trying to design a DIY custom UV system yourself. You don't need to become an expert, but having a bit of knowledge on what you're trying to target and how intense and for how long ect will help you narrow it down a little bit better.
Idk about exact THC % increases, and obvi a company selling a product is going to oversell than under sell. I don't think you'll get a garunteed X% increase, but the science does point to a correlation between UVB intensity and THC concentration.