@Rayman,
If I apply indica ruderalis, I am informed by Xotic Seeds, I will get regular autos. That is partially what I am seeking to do. But if I apply regular pollen to an auto, do I get autos? Or do I get a mixture?
That was apply indica ruderalis to a regular.
Not in the first generation. You’ll need to back cross the progeny to the auto strain to get the recessive auto trait to express itself. With this back cross you should statistically get half autoflowering and half photo plants. 2nd back cross to auto 75% auto expression, 3rd 87%, 4th 95%(considered stabilized auto)
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@joheimgrohen,
of the autos in the 2nd generation, would they be regular autos - male and female?
I’ve crossed a few auto x photos over the years. None of the first generation will be auto flowers . But if you grow them outdoors they will.flower before normal photoperiod do. I’ve found quite a few will be ready for harvest before sativa strains start to flower .
@joheimgrohen, @Billybob,
thank you for the information. I think I might purchase the indica ruderalis and try it while trying the regularXauto
As long as you are using a male in the crosses, the offspring will be regs. Feminized would require reversing a female to pollinate another female, removing the male chromosomes from the equation.
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Here’s the full explanation
For this representation aa will be auto since it’s recessive
AA will be photo since it’s dominant
Aa and aA are gonna be fast finish autos
Let’s be begin shall we?
Cross a photo period AA with an auto aa
What results is the f1 seeds from that cross being ALL fast finished photos
So next we take those fast finish photos and cross them together again for the f2
Now u will expect in the f2 offspring to have 25% photoperiod, 50%fast finishing photos, and 25% autos
Let’s now cross the 25% autos found in the f2 and make our f3 generation
What u now have is 100% autos
Now for another curveball let’s take our f2 seeds and cross a fast finish photo with the autos we found
What u will have is 50% fast finishing photos and 50% autos
As far as breeding programs go, the f3 typically gets accomplished to get the desired autos isolated then one more run of em is done taking them to f4 and that’s typically the point the companies and breeders will make the seed stock available as they should be 100% auto at that time and stabilized for the traits they were chasing
Hope this helps to answer and give a complete understanding of what to expect
Cheers yall
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I’m really curious where ur getting those percentages when the math is basic on a punnett square, I mean I suppose u could skip a step and skip to getting the f1 of all fast finisher (Aa)photos and back cross right back to the original auto (aa) which would give u 50/50 in the f2 generation BUT we cross photos with autos to make autos more potent as ruderalis isn’t potent to begin with, so Immediately backcrossing to the auto and ur making the traits and potency lean more towards that autoflower parent. Good breeding takes time and working the lines, not finding the shortcuts
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Thats photos and autos alike, u want Fem seeds u reverse the female and let her pollinate, u want reg seeds u find ur male to do the dusting. Using a male or using a female as the auto or photo will not have any bearing on the offspring as far as what to expect with pp vs auto
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@AzSeaindooin420,
for me an excellent explanation. It is why I joined overgrow, to glean from those experienced.
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I appreciate the correction. I was running off memory and didn’t have paper in front of me to work it out, and I was at work. I swear i wasn’t trying to mis inform. I’ve also never worked with pure ruderalis, but I was thinking the same thing as far as the ruderalis’ traits overshadowing what ever they’re trying to breed into an auto. As far as the math, I was starting with 50% auto rather than the 25% as it should have been.
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What I am hoping to do it develop an auto Strawberry Snow Cone. Strawberry Snow Cone has a long flower time and living north of the 45, that comes close to frost time. I favor Sativas but they take too long to make it to harvest here. For one thing, even getting fast photos of them would be an improvement.
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I would continue to refer to @AzSeaindooin420, as he sounds much more knowledgeable than I. I’m only just getting into breeding as well, (making my own auto is on my list also) so I’m learning too.
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Thank you for the explanation! This is one of the clearest explanations on the topic that I have read. I think I even fully understand it on the most basic level. You rock.
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Ya I’m right there with ya, the long finishing sativas drive me crazy too, 12-16 weeks of flower is just rediculous
No prob! Happy to share the knowledge!
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@joheimgrohen
we all make mistakes. I remember when I first started taking and interest in cannabis I kept referring to hemmies in conversation instead of hermmies. I wondered why no one would have understood what it was I was trying to say.
Would someone tell me what Bx1 means in regard to a strain. I received some seeds, Thug Rose Bx1 but I do not know what that means. I do not know if i want to brother growing it.
Back cross 1, means the plant banged one of its uncles and made babies or one of the aunts got it on with their nephew and made babies
In other words it could have been taken to an f3 and that f3 was backcrossed to the f1 or f2 generation
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