Throughout the world, the cannabis plant is gaining in popularity and legitimacy as a medical treatment for a broad range of illnesses. Now, researchers at the laboratory of Professor Alexander (Sasha) Vainstein at the Hebrew University of Jerusalerm (HU)'s Robert H. Smith Faculty of Agriculture, Food and Environment, in partnership with and funding from Mariana Bioscience Ltd., have successfully engineered a cannabis plant with higher levels of medically important substances, such as THC. 
The researchers successfully increased the level of THC (tetrahydrocannabinol), the main psychoactive component in cannabis, by close to 17%, and the level of CBG (cannabigerol), often referred to as the mother of all cannabinoids, by close to 25%. Further, Vainstein and his team were able to increase the ratio of terpenes, which are responsible for maximizing the euphoric effects of cannabis, by 20–30%.

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physorg, 22.05.31.

https://phys.org/news/2022-05-cannabis-strain-thc-medical-applications.html