contain 20% THC, with a THC level of 5. The
same plant grown under better conditions and
light will produce 70% THC, with a THC level of
- The ‘5’ is genetic. The quantities of 20%
and 70% are under the grower’s control.
When examining a strain in a seed-bank
catalogue one is guided to check for the THC
levels of that plant to understand how potent
the plant is. Many seed sellers and breeders
measure their plants THC levels and give
accounts on how much THC their plants have. Of
course many breeders like to exaggerate on how
much THC their plants produce, but some do not.
If you wish to know more about THC levels it is
best to consult your seed-bank or breeder for
details.
No complete study of cannabinoids has been
made public since this book’s publication. This
is because cross breeding produces so many
different results that it is hard to keep track
on what is happening. Some 'old timer' strains
are still around and have been tested. This
information can be obtained from the larger
seed production companies in Holland. THC
testing is also an expensive process that
requires heavy amounts of research. The other
