Breeding Heat-Resistant Cannabis Strains

I want to create a high-heat tolerant strain for my self...anyone know how to do it? like how to select and stress them etc...
I know there is many things need to take consideration like grow environment ,feeding all kind of staff.

my idea is try some f1 under a high-heat stress and see which one survive best...then start from there...is that easy?

Thanks in advance.

I would start out with genetics from warmer climates like Africa. Malawi, Durban, etc...