Meanwhile with crops such as corn, you have entire land grant universities planting test crops as we speak and biology departments dedicated to maize genetics, and thats true for almost every other large commercial crop. Billions are spent on research by the federal and state governments. Agriculture takes advantage of all of this research and development when producing commercial crops, but none of this investment is being made for cannabis and when it is done by these private companies they are not proliferating their findings.
There are so many cannabis forums on the internet (I used to be on the top 5 waaaaay back in the day) that you can find tons of research and tips on various culture methods. Right down to micro-sample cloning techniques.
It is a fascinating plant.