Sterile plants that won't set seed

[Sam_Skunkman]

Does anyone have a clone that won't set any seeds? Even white nubs?
I am looking for any plant that is this way. A dead leaf would maybe answer why it may be this way. If you think you have such a clone please PM me, so we can talk about the plant and how sure you are it is sterile.
I have never found one, I made a few that were 95% sterile but also made lots of white nubs. I want to understand why this is.
Even a tip where to look or who to ask is appreciated.
-SamS

 

[HidingInTheHaze]

I've got an interesting one, it has almost no stigmas. It throws nanners but never a single seed. I haven't tried to throw male pollen on it but I can't see how it could make seeds with almost no stigmas. It came to me as a mystery I have no idea what it is genetically.

 

[Sam_Skunkman]

Simple, try and pollinate it with fresh pollen several times near the beginning of flowering, if you have several different males all the better. So even though it makes male flowers you have never seen a seed on it or on near by plants? Try the pollen from the nanners it throws on a different variety female flowering clone, did it make seeds?
Let me know what happens I am interested....
-SamS

I've got an interesting one, it has almost no stigmas. It throws nanners but never a single seed. I haven't tried to throw male pollen on it but I can't see how it could make seeds with almost no stigmas. It came to me as a mystery I have no idea what it is genetically.

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[quokka]

I have a plant that seems to accept pollen on ~5% of it's pistils.

I have tried to pollinate it twice with different pollen, on 2 different occasions (different clones) but it still might be the pollen.

I am going to try once more with different pollen.

 

[Only Ornamental]

Female and male sterility can each have several causes. I have tried to reproduce the Syrian variety from the IPK but it doesn't really set seeds and just a very few white nubs. Tried it with two males from the same and from 3 (4?) other hemp varieties as well... will try again. In my case I suppose it's due to cultivation conditions. It's an old variety reproduce outdoors in Germany for many years and I tried it indoors under 'speed' conditions (12/12 at 4 weeks after sowing).

With the cannabis genome project in mind, you might want to read on sterility in other species such as Arabidopsis thaliana (thale cress) in order to predefine possible genes/proteins. The nice thing is that the most frequent causes of sterility but also many other mutations and aberrations are often the result of the same faulty protein no matter in which plant.
A second approach might be to get a living plant and try rescue strategies. These should also be found when looking into thale cress and give quite often a better idea on the reason for sterility (and hence reduces the possible genes and pathways considerably).

I'd highly appreciate if you could share your gained knowledge (lets hope you do find something worthy) here on ICMag! Plant sterility and even more so breeding with sterile plants is indeed a very fascinating topic.

 

[HidingInTheHaze]

Simple, try and pollinate it with fresh pollen several times near the beginning of flowering, if you have several different males all the better. So even though it makes male flowers you have never seen a seed on it or on near by plants? Try the pollen from the nanners it throws on a different variety female flowering clone, did it make seeds?
Let me know what happens I am interested....
-SamS

Despite the looks it is not infertile after all. I just found 2 seeds in a bud I assume are from a late flowering male flower.

 

[Sam_Skunkman]

No problem, I am still interested in any sterile female anyone thinks they have, I just need a dead leaf, but be as sure as you can it will not set seeds.
-SamS

Despite the looks it is not infertile after all. I just found 2 seeds in a bud I assume are from a late flowering male flower.

 

[Sam_Skunkman]

Bump...

 

[Chrondiddle O]

I'd be interested to see a pic of that plant posted above earlier in bloom.It looks to me like the calyxes have already extended over the pistils,but I can see barely any pistils protruding from the calyxes,but there's certainly a few visible.That's pretty interesting.

 

[HidingInTheHaze]

I'd be interested to see a pic of that plant posted above earlier in bloom.It looks to me like the calyxes have already extended over the pistils,but I can see barely any pistils protruding from the calyxes,but there's certainly a few visible.That's pretty interesting.

I can post one later on, it has almost no hairs even from day one. It just grows tight little buds. I've grown many plants and strains over the years I have never seen anything that grows like that plant before.

 

[HidingInTheHaze]

I'd be interested to see a pic of that plant posted above earlier in bloom.It looks to me like the calyxes have already extended over the pistils,but I can see barely any pistils protruding from the calyxes,but there's certainly a few visible.That's pretty interesting.

26 Days bloom

 

[RulaTone]

interesting find HitH
Never seen anything like that before...
watch out for a Skunkman dropping from the chimney in search of her!

 

[HidingInTheHaze]

interesting find HitH
Never seen anything like that before...
watch out for a Skunkman dropping from the chimney in search of her!

In all of my years of growing I have not seen another plant like this one. I wish I knew what it was whether it be an old strain or a new strain. To me it reminds me of the best bud we'd see in the 90's, its got a weird smell, and I could not trim it at all, just throw it in a bag and ppl would be cool with it. It's done in 50 some odd days too which is even weirder, potency is no slouch for such a short flowering time either. Interesting dope indeed.

 

[TerpeneDream]

What is the goal here…are you trying to recreate this gene set for future 'projects'?!

 

[Betterhaff]

Do you have any pollen? Those look like they could receive some.

 

[purple_man]

high fambz!

trying to figure out the next step in the seedgame??? sterile autoflowering feminized seeds i guess??? would be a treat for seedbanks, no more males n seeds nor moms n pops, aka farq you growers pay me (ze zeedbanks)

blessss
ps.: you could check out terminator genes in transgenic corn???

 

[pastor]

trying to figure out the next step in the seedgame??? sterile autoflowering feminized seeds i guess??? would be a treat for seedbanks, no more males n seeds nor moms n pops, aka farq you growers pay me (ze zeedbanks)

of course they will, if possible.
:/

 

[HidingInTheHaze]

Do you have any pollen? Those look like they could receive some.

I have some SSH and Highland Mexican x Blueberry pollen in my freezer, I was thinking of dusting a little of either on it.

 

[JohnKimble]

I had a male plant that wouldn't make any pollen. The flowers opened up but nothing came out. I even took the whole plant and shook it vigrously over the female plant and at harvest didn't get a single seed.

 

[HidingInTheHaze]

34 days