i do not think they will be a pure auto just cause u mix a pheno than breed that pheno with a auto does noy mean you will get auto's atm i am speaking to someone from barneys farm to jump on and explain the process to us
I just posted above how Auto genes work.
Im well aware of how they work.
Quote from another forum
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Auto = aa
Photo = AA
Auto x Photo = Aa (will not auto)
Aa x Aa (two of the non-autoing offspring crossed together) = AA, Aa, Aa, aa (One fourth will auto. Keep that one)
*Note: During all steps, only select the offspring with your favorite traits to continue breeding with (ie. Not all of the autoflowering offspring in this step will be identical).
aa x aa (two auto'ing offspring from the last generation) = aa (all auto'ing)
Your new auto's would have 50/50 genetics from the auto and the photo parent.
You can then repeat the process with that new autoflower you just made, instead of the one you used originally, to make the genetic percentage lean more and more towards the photo parent, through back-crossing (crossing the new auto offspring to the original photo parent). The catch is, the percentage difference each time is exponentially less, and never reaches 100% (you need at least the autoflower gene(s) from the auto parent).
50/50 -> 75/25 -> 87.5/12.5 -> 93.75/6.25 -> etc.
Therefore, within four rounds of this breeding, your auto would be very very close to the original photo. Depending on how suitable your auto parent choice was, you might not be able to even tell the difference between the new autos and their photo parents.
Ideally, after you settle on having back-crossed enough times, you would take your latest batch of seeds, and label them F1.
Then cross siblings from each generation, until you hit F7 to have a very stable strain that shows little difference (Should have one phenotype).
It sounds like a ton of work, and it definitely isn't easy, but given the life cycle of most auto's you should be able to finish the process in a few years if you are really on top of your game.
The reason there is so much variation in commercial seeds, is that it is much easier and more cost effective to make a simple cross, and start selling it while leaving it in an early generation, because 1, you benefit from hybrid vigor, and 2 people cant just spray one with cs and inbreed them for more seeds that will be the same, because there will be a ton of variation due to it not being stable yet.