Masterkush pollinated by RomP19.

[syko2]

 

Back crossing and inbreeding are different. Backcrossing a F1 cross to it's parent genetics would again create a back cross F-1 not an F-2. A F-2 is inbreeding the MK x RomP-19 strain with it self by using the RomP-19 x MK seeds and using a male and female RomP-19 x MK strain to make more seeds. A F-3 would be seeding a female 3rd generation MK x RomP-19 with 3rd generation male.

Simply crossing 2 strains making seeds is a F-1, use these seeds to grow out a male & female and make more seeds would be F-2. Using the F-2 seeds to make more seeds by using a male & female would create a F-3 and so on.

Back crossing is usally done in the 2nd and 3rd generations to create a more stable strain. Back crossing would be done by re-introducing the parent genetics back into the cross. Say in the 3rd back crossing of the MK x RomP-19 instead of using a RomP-19 x MK male to seed a MK x RomP-19 female one would use a RomP-19 or MK male and seed a MK x RomP-19 female or you could use a RomP-19 female and seed it with a RomP-19 x MK male and so on...

s2