Originally Posted by Hookahhead
It seems that a lot of people are concerned about "limiting the gene pool". The main driving force behind selective breeding is specifically to limit the genetic variance in a population.
Its true that in selective breeding you as a breeder select the desirable traits you want. Having said that....it depends on how you apply selective breeding in conjunction with your breeding system.
If you're in-breeding very closely related pair "repeatedly" (such as brother to sister) and breed the offspring again with each other (brother to sister) then yes you run the risk of most of your genome turning homozygous or as you say limit the genetic variance. Which is not the way to do in-breeding.
However, you can apply selective breeding to an in-breeding program for instance without sacrificing genetic variance by creating a program/system focusing or closely monitoring your in-breeding coefficient. This been done and in fact strengthen the purity of a breed without losing vigor.
The OP topic is breeding female to female. This is not selective breeding in a true sense.
The grower might be trying to save a strain for his/her grow or trying to produce more seeds for his/her future grow. If this is the goal of the grower then by all means...we have to do what we have to do to produce ganja....there's nothing wrong with that.
But as a viable breeding program in the truest sense, I still maintain that this is not the way to go as I already have pointed out.