All-Female Cultivars

Rasterman

In Bloom
I thought a good breeding shortcut would be to breed cannabis without using males, ever. I asked around some and was told that doing that, eventually you'll run into problems because the male passes on genes that females need. Because females eventually become sterile. Because breeding without males will eventually create a cultivar with strong intersex tendencies.

None of those things sounds logical to me, but that's the wisdom. I recently canceled an open pollination because all of my seeds (at least the ones I didn't cull) came out female and you can't get good genetics without males.

Then Twenty20 Mendocino admitted that's what they do. (Read the comments section):



I did another web search and couldn't find squat. But I did find a single podcast discussing the topic:

. Skip to minute 70 for the discussion.

It validated what seems to me to make sense. Males are irrelevant, and problematic, when growing drug cannabis. There might be some genetics passed through part of one male chromosome, but if the ladies being bred together are both fine specimens with desired traits, their genetic material will combine as expected. If some necessary trait was passed only through male chromosomes, it would certainly make feminized seeds a crap shoot.

For home growers with a plant count limit, this is good news. No need to grow out males and hang onto their clones until their children can be examined and compared with children of other males, for example. No false starts and resets because the chosen male was the wrong one.

So I say kill all the males, pick the best females and breed your own IBL in the most efficient way possible. It's what Twenty20 does, and I've grown some of their stuff, so why not?

Thoughts?
 
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Gentlemancorpse

Cannabis Chaotician
Staff member
Moderator
Can you breed cannabis without males? Yeah, sure, lots of breeders have been doing it for decades.

Should you breed cannabis without males as an individual? Completely subjective and dependent on your space and needs.

Should everyone breed cannabis without males? Almost definitely not. It would be crazy resource intensive and less reliable, plus regular seeds tend to be more vigorous. Plus it involves using hazardous chemicals typically, which isn't for everyone.
 

Gentlemancorpse

Cannabis Chaotician
Staff member
Moderator
It's a pain having to remember to spray every day. But I think it's selfed plants that cause a loss of vigor - that and inbreeding. I don't think female sibling breeding would be any worse than m/f sibling breeding.

I completely agree that it's not for everyone. But for someone with plant count limits it can help.
Just from my own observations almost all feminized plants I've grown grow slower than regs. Obviously there's the occasional exception but I run fems and regs side by side a lot and the fems pretty much always lag behind at first. Doesn't really affect the end results typically but I do also seem to find more mutants and oddities in fem seeds. Not enough to discourage me from growing or making feminized seeds obviously,, but enough for me to understand where some people would prefer growing regs
 

Amarok

bad mother chucker
Staff member
Moderator
I'm not really sure why I run regs, but it feels right. Kind of like buying a kit and assembling it as opposed to building something from scratch. The kit makes things easier and smoother, but it just feels to me like I'd be depriving myself of a part of the process, and of the knowledge(and sense of accomplishment) to be gained by completing that process.

Of course I have time and space(and a stable of moms). I am very aware that we all have different circumstances.
 

Rasterman

In Bloom
Just from my own observations almost all feminized plants I've grown grow slower than regs. Obviously there's the occasional exception but I run fems and regs side by side a lot and the fems pretty much always lag behind at first. Doesn't really affect the end results typically but I do also seem to find more mutants and oddities in fem seeds. Not enough to discourage me from growing or making feminized seeds obviously,, but enough for me to understand where some people would prefer growing regs
I've noticed that too with some fems but not others. I wonder how many feminized seeds were created by selfing and how many are F1s from females coming from two separate lines?
 

Gentlemancorpse

Cannabis Chaotician
Staff member
Moderator
I've noticed that too with some fems but not others. I wonder how many feminized seeds were created by selfing and how many are F1s from females coming from two separate lines?
I feel like the majority are F1s these days. At least most of what I run certainly is which may skew my perspective a bit there. I don't run many S1s
 
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