Autoflower crossing? in the
The Grow Room forums; Hi guys
If I have a few autoflower seeds that I grow, and a male plant (lets say ...
If I have a few autoflower seeds that I grow, and a male plant (lets say indica dominant) or pollen, and I pollinate the auto's. What would the resulting seeds be? would they be auto's or would it be a hit and miss situation?
I'm asking as auto's are interesting and would like to play around with them.
Although its the recessive gene, if both parents are autos then i think most the offspring will be auto. I couldn't rell you the ratios lol but yeah, its supposed to work well. There is a thread on here for seed production with autos, search for it and check it out. You can even use colloidal silver to make a female plant produce some male flowers, and then if you use that pollen to fertilise some seeds then they will turn out femenized and auto too
thanks for that, will have a look at the other thread, and read up on colloidal silver method.
The most common (lowryder) autoflowering gene is recessive.
Originally Posted by DL83
So if you cross two autos, all the offspring will be autos.
If you cross an auto and a regular plant NONE of the offspring will be autos. If you then cross two of THOSE offspring plants, 1/4 of the offspring of that cross will be auto.
but the f1 generation from an auto and a non auto parents will finish roughly 2 weeks earlier than the photosensitive strain on its own,so if it finished october 1st it would now finish around september 15th,with a few later and a few earlier,but the f1's like buddy said will have 0% autoflowring,cross 2 auto's and 100% of the offspring will be auto,i think it takes at least 4 generations to produce a full auto from auto and non auto parents.
Didn't know this, though it is good to know.
Originally Posted by chongsbuddy
I don't think so.
i think it takes at least 4 generations to produce a full auto from auto and non auto parents.
If you were to cross an auto and non-auto the F1 offspring should all be auto heterozygotes (ie each F1 plant will carry one and only auto gene from its autoflowering parent; you need two to be autoflowering).
If you then crossed any two F1s to create an F2 generation, about 1/4 of those F2 plants will be expected to carry two autoflowering genes and be themselves autos.
So you really only need two generations of crosses to create SOME auto offspring from auto and non-auto parents.
Assuming you generated enough F2s to do the selection, you could then select out both an auto male and an auto female, and cross them to get 100% auto F3 offspring, etc.
At that point you've created an entirely new autoflowering hybrid line.
Now in practice, you probably wouldn't stop your breeding project there, since even though your new line should be 100% autoflowering (or nearly so), you still haven't stabilized any OTHER traits you were interested in when you started the project. Your F3 all auto plants would still throw off lots of different phenotypes.
If you want to do REAL breeding, you're either going to want to backcross your new autos with the non-autoflowering plant and repeat the cycle (requiring more selection to retain the autoflowering trait), or alternatively do your original F2 selections from LOTS of autoflowering plants, so you'd have plenty of male and female autos to choose from so you could select the absolutely best ones for further refinement.
Last edited by chongsbuddy; 10-13-2012 at 10:26 PM.
Its interesting to see that there are so many cannabis forums out there!
Originally Posted by chongsbuddy
Unfortunately, I'm not willing to join a new one just to read those two posts. You have to be a member to read them.
Can you summarize what they say, or maybe do an attributed "cut and paste"?
Yes, I know that in practice, if you were to cross a male F2 auto with a female F2 auto you might not see absolutely 100% auto F3s because of some genetic chicanery I'd rather not get into now. But you should get pretty close (ie >95% autos), which is why I said "or nearly so" above.
But again, whether you did or didn't, for any reasonable breeding project, you're not going to be done with just an F3. You'll need at least 3 more generations of crosses to create anything approaching a stable new line.
its like 12 pages of info,im not copying and pasting all that.i didnt know you had to be a member to read....just join,its an amazing tight knit community of outdoor growers,lots of valueable info,and they are connected to rcmcollective which is a canadian seedbank that specializes in early outdoor dank
Breeding Map For Auto~Flowering (Day-Neutral)
I was asked to do a write up on how I breed for auto-flowering (Day-Neutral).
I thought it would be a lot simpler to understand, if I made a breeding Map.
The map is not perfect, but is does get idea a cross.
Hope it is put to good use.
They say a picture
is worth a 1000 words.
A breeding Map is worth 5000 words!
Even if it looks like it was drawled by a 6 year old.
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