Breeding Question

Hi Folks
I have a question about squaring and cubing to an IBL. If you start with two P1's that are not homozygous and you cross them are you still able to produce a pure breeding plant?
If you cube the offsprings will you get an true breeding cross?
One last question
If one of the P1's has unknown genetic orgin(not sure whats in the cross) will it be a factor in cubing the cross of the 2 P1's.
Thanks for any help

 

Only if they are withing the same genotype, and unknown parentage it is difficult to determine- might take years.
Cubing I would not reccommend.
I wouldnt reccommend using an unknown hybrid- too hard to determine heritage.
If you use unknowns use landrace.

 

but, but..tie, ain't you the one picking seeds out of a pile 20 years old and placeing names on 'em?