i personally think adding UVB to a plant is not going to make it more potent or Frostier its genetics period most of the UVB in nature is blocked from our atmosphere if it really was the case then high altitude areas would be killing strains grown as for THC / resin production being grown near the equator yet its not happening
UVB not only causes cancer to us but destroys DNA in plants people start to believe in something and will switch to the idea and believe there is a difference when in fact there wasn't
Same thing can apply for a high THC sativa strain where it tests 20 percent THC grown out door at the equator place same strain at 9800 feet above sea level north of the 60th parallel and strain would be lucky to get 12 percent THC just saying and being 9800 feet above sea level have lots of UVB hitting plant
people tend to think that stressing the plant or placing it in a harsh climate possibly Higher UVB area its going to produce more resin to protect it self ,, personally having this happen or to see a change would be like evolution ape to man its not going to happen litterally over night all you would be doing is damaging the plants genetics this is just my thoughts thou UVB is important an i think its more of a triggering effect process for the plant
UV-B that reaches the earth is absorbed by the stratospheric ozone layer and therefore UV-B wavelengths are only a small fraction of sunlight at the earth's surface. Nevertheless, since UV-B is the most energetic part of the daylight spectrum it has the potential to damage macromolecules such as DNA and proteins, generate reactive oxygen species (ROS) and impair cellular processes.
However, UV-B is not solely an agent of damage and has an important role as a regulatory signal. In particular, the perception of low levels of UV-B by plants actively promotes survival because it stimulates responses that help to protect against and repair UV-damage. Plants are unavoidably exposed to UV-B because they need to capture sunlight for photosynthesis. The fact that plants rarely display signs of UV-damage in the natural environment demonstrates that they have evolved very effective mechanisms for UV-protection and repair. The protective mechanisms include the deposition of UV-absorbing phenolic compounds in the outer epidermal tissues and the production of anti-oxidant systems. Repair of UV-damage involves enzymes such as DNA photolyases. Furthermore, responses to UV-B modify the biochemical composition of plants, influence plant morphology and help to deter pests and pathogens. It is well established that many plant responses to UV-B involve the regulation of gene expression. UV-B exposure stimulates the expression of hundreds of genes, including those involved in UV-protection and repair.
It is important to understand how plants respond to UV-B and to determine the contribution of UV-B responses to normal plant growth and development. In fact, it will not be possible to obtain a complete understanding of the role of light in controlling plant development without knowledge of the regulatory effects of UV-B. Much remains to be learnt about the cellular and molecular mechanisms of UV-B perception
