??? Pollinating Auto-Flower Plants with Photo-Period Pollen???

[Californacation71]

:tiphat:Hello Fellow AutoFlower Enthusiasts:tiphat:​

Am interested in starting with some breeding and could use a few pointers. I'm primarily interested in continuing with Auto's but keep coming accross strains that I find interesting that arent available as an Auto. Not to mention probably like others here who see a possability of turning our hobby's into possible biz's/careers considering the way things are going with the acceptance of Medical MJ.

So some insight on my first primary question would be greatly appreciated!
-When pollinating Auto-Flower Plants with Photo-Period Pollen will it maintain the same Auto traits? I have read a few times about back crossing???

Would greatly apreciate any fellow enthusiasts that can take a moment to touch on the subject. Atleast enough to get me started. Any knowledge of apropriate articles for me to check out???

Really curious how many grows (back and fourth if necessary) would be needed to Pollinate an autoflower with a photoperiod while maintaining its autoflower traits???

Thanx Already for all insight....

 

[farmergreen007]

All of what I am about to write is only from what I have read so if I geget anything wrong I'm sure someone will come by and straiten me out.

To cross an auto and a photo for the auto trait but the plant to favor the photo parent you wilol have to brend it to at least an F3 to stabilize the autoflowering at that point you can back cross to the photo parent to bring F3 again to bring out the traits from the photo parent more

As for what to read, read all the stickies above this post that is where I started

 

[Eekman]

Mendelian Genetics







​Eek

 

[EverythingsHazy]

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.

 

[natertots]

From what folks have told me on here, some breeders work with the aa's only from the f2's and some just keep using the traits they are looking for and let it auto on down the line. I dont know what the consensus is.