Making Auto seeds mixing strains

[Tactical Farmer]

So what general results would happen if a 70 day auto female was sprayed with colloidal silver which would produce fem pollen.

That auto fem pollen mixed with standard females ?

Would there be a mix of smaller faster flowering fem plants ?

 

[semilantacasa]

^ I have colloid silver and im going to make some fem seeds next summer from my auto crosses what i have maded past years.
I think that spraying is best to start when first pistils coming out? Just heard from breeders and readed that "fact". I don't have experience doing femseeds earlier, so don't listen me

 

[DoubleTripleOG]

From what I have read, the answer to your question is yes. Pretty sure it takes 5 generations of selective breeding to make a full on auto. The first 2-3 generations will have pheno's like you describe. Then as you go further the auto trait shows up more, until you have full auto's.

Sweet seeds did that with a few of their strains. Bred them with an auto to make them flower faster. They call them the "f1 fast version"

I have done the cs on an auto to produce auto-fems. Worked great. I would go for it if I was you. Here's a link to the sweet seeds fast version I have growing now.https://www.icmag.com/ic/showthread.php?t=301977

 

[semilantacasa]

Ok, i readed bit wrong your post Tactical farmer... i readed 70days 'old' auto...
I think there would be few different phenos, just like pollinating regfem x automale, but only females.
Picking right phenos, doing backcrossing several times there will be faster / smaller plants?

 

[IntelliGeneS]

From what I have read, the answer to your question is yes. Pretty sure it takes 5 generations of selective breeding to make a full on auto. The first 2-3 generations will have pheno's like you describe. Then as you go further the auto trait shows up more, until you have full auto's.

Autoflowering is assumed to be caused by a single recessive allele (I have not yet personally performed a trait characterization study, so I cannot verify, but this seems correct). Therefore, assuming you self pollinate after the initial cross (between an auto and a photo), it is possible to select fixed autoflowering individuals in the F2 population. The F1 will all be photoperiod sensitive, but the F2 should segregate 25% auto and 75% photo.

 

[DoubleTripleOG]

Autoflowering is assumed to be caused by a single recessive allele (I have not yet personally performed a trait characterization study, so I cannot verify, but this seems correct). Therefore, assuming you self pollinate after the initial cross (between an auto and a photo), it is possible to select fixed autoflowering individuals in the F2 population. The F1 will all be photoperiod sensitive, but the F2 should segregate 25% auto and 75% photo.

Yeah, I forgot that part in my post. There was a chart posted on this site somewhere that gives the exact breakdown of what percentage in each f series(f1,f2,f3...) will be auto.

I was speaking as if the goal was to make a photo into a full fledged auto, with all the seeds in the lot being auto.

 

[1madtrapper]

Here is a copy n paste for yha, from elsewhere thank you Zygote

 

[J-Icky]

Although I don't completely understand that chart, it does seem to conform to what I've learned about breeding autos, kinda. That would be that since the trait is recessive, that as long as you select 2 autos from the f2 that the f3 would be 100% auto and you can do your selections for phenos from there and would want to wait til at least the f5 to start backcrossing for stability reasons.

But that chart also shows that breeding 2 autos from the f2 can produce non-autos in the f4, and thats the part I'm not fully understanding. Can anyone help explain whats all going in the f2-f4 in that chart?

 

[MJPassion]

Auto x Photo = 100% Photo F1
F1 x F1 = 25% Auto, 75% Photo
Selected Auto F2 x Selected F2 auto should yield 100% Auto F3.
Selected F2 Auto x Original Auto = 100% Auto flowering back cross

 

[J-Icky]

Auto x Photo = 100% Photo F1
F1 x F1 = 25% Auto, 75% Photo
Selected Auto F2 x Selected F2 auto should yield 100% Auto F3.
Selected F2 Auto x Original Auto = 100% Auto flowering back cross

See thats how I understood it but that key shows, the non-auto recessive, and then it says a shaded circle is auto and a non-shaded circle with an X in it is a short photo but then in the actual, but then in the graph it shows a shaded circle with an x, which really doesn't make sense with the key. It also shows that selecting autos in the f2 can yield all sorts of non-autos in the future generations, which I kow is theoretically possible, just not in the percentages that graph is producing.

If auto is truly recessive then once you have a plant that is auto and you breed that with another auto plant then all future generations would be auto until you crossed it with a photo.