Octopus

My results: 8 females out of 12. Now remember I didnt get the nanas under them until day 26 and kept replacing them untill all were sexed. Maybe if I'd gotten them under there earlier I'd have an even better ratio. I'm gonna go ahead and attribute the 8th fem and maybe even the 7th to the bananas, but even if they had nothing to do with it, I only spent around 6 bucks on bananas all together.

The messed up thing about this being a "religion" is my ratio is 66.666..
so maybe bananas are the devils work? (I know it's actually rounded to 66.7 but kinda eerie none the less )


ps thanks to Bluecheese for getting this going, I love learning while I grow!

eyes88

That's cool Octopus!

For fun, I ran a quick Chi Square analysis on those numbers: 8 Females and 4 Males... Assuming that there is a 50/50 chance of getting males and females (i don't know if this is true or not, but let's assume that it is), then the probability of getting 8 females and 4 males out of 12 plants is p = 0.248. In other words, the chance of getting this ratio randomly is 1 in 4.

peace,
- eyes88

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Oh So Grow So

Terri Gross had a guest on Fresh Air (NPR show) to talk about about naners going extinct. There was a virus that almost killed them off a while back, until farmers came up with a new strain of naner that is resistant to the virus. well the same virus is back and the better strain of naner is no longer resistant to it. they talked about Ethylene gas too. heheh.

damnit! save the naners!

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bobbooty

there are basically 2 schools of thought on this:

one camp believes that sex of MJ plant is determined within first 2-4 weeks of growth, after seed germination, and that a plant is non sex before that. this camp also believes that environmental factors play a role in producing male or females. i think breeder sensi seeds even promoted this idea at a time, they may still?

one camp believes that sex is always 50/50, right at the seed. environmental factors do not apply to this thought as far as i understand.

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Stone

Maybe I can add a bit more to this debate in terms of numbers...
I currently have 72 seeds (7 strains) in ziplocks with banana skins and paper towels. I plan on them being in there for about 7-10 days, then into Oasis cubes with bananas and maybe an apple or two until week 4+ (or until they go out).
Possibly even more interesting is one of the strains is Nirvanas Early Special. This is an Indica-Ruderalis autoflowering hybrid. I'm interested to see how the ruderalis hybrid responds to this method.

P.S. I should mention that I'm also using folic acid on the germ so that may also effect the ratio. Not exactly a double-blind controlled study, but at least we'll be able to see the effects on a larger amount.

xyz

I admit I haven't read the entire thread but did keep up with it for a few weeks when it started. I just don't use seeds and thought to read the thread when I did.

This quote by bobbooty gets me thinking...
I am running a colchicine test. I started from seeds I crossed my self.
Long story short it appears I have at least 3 out of 10 being male (maybe a couple more will show today/tomorrow)

Each of the 10 plants was topped prior to going 12/12 and the clones are doing well.

Would it be worth it to grow the clones out a bit using a banana and go to 12/12 to see if the sex might reverse itself?

Has this been done yet-worth it???

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xyz

Time to grow some hempy naners

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bluecheese

Bananas (ethlyene gas) will not reverse sex.

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eyes88

If you could reverse the sex of a clone then that would really be something!

I have two clones right now that were from male plants as well, maybe i should add to them to the test.

...from what i've read about the banana religion the critical window is hypothesized to be between 3-4 weeks post germination. In all likelihood the clones were taken after that point (i know mine were). If has the ability to responde to chemical triggers in the environment that influence the sex phenotype, then i wonder if this so called window has already opened and closed for a clone?


peace,
- eyes88

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stelow

I would just plant extra seeds. I usually get more than enough females and I end up getting rid of some, there's just not enough room for all of them for me to grow indoors sometimes. I like my plants to have plenty of room not crowded into a small area.

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