[pacnw-dan]

You’re referring to “selfing”? That’s where you apply a chemical (often silver thiosulfate) to one plant’s flowers, they “reverse” into male flowers producing (feminized) pollen and then you apply that pollen to another female (either a clone of itself or another female cultivar).

The results will be Feminized S1 seeds, which are basically F1’s (first filial generation, “sisters”), similar to breeding two sibling plants together. You will get a similar genetic expression from that plant as if you had bred it with a similar sibling. So in theory, about 50-75% of those seeds will be very similar to the parent(s) (not clones). In those, you’re likely to find a plant that will be close enough. 25% of those seeds will be outliers, expressing genetics from past generations rather than the parent plant.

If you want to create seeds that are near-100% identical to the parent, you’ll need to go multiple generations into probably F3’s (take the progeny from the first reversal, grow them out, find the one that’s most similar or exact to your goal plant, then reverse and breed that one to the original). Grow them out, hunt, repeat. By the time you get 3 generations in, you should have a bag of seeds that will produce progeny that are overwhelmingly similar to your goal plant, and you’ll have your genetics for storage.