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Thread: Sexing Seeds

  1. #1
    GrowRebel's Avatar
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    Question Sexing Seeds

    I did a search of this forum and I didn't find anything on the subject.

    In the faq section there is a graph showing how to sex a seed to see whether or not the plant will be female .... is this true? ..... has anyone tried this?

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  3. #2
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    don't know about the validity of this chart, but i'll be doing some experiments as i still have 14 femenized seeds. i'll end up posting on this thread, probably so keep it fresh!

    love, brooke

  4. #3
    harris7 is offline Registered+
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    hmm. I'm sure it is correct. I have a question tho, why are these seeds feminized. and why are some seeds not.

  5. #4
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    feminized seeds are produced when a female plant is over stressed and kicks a male flower (hermaphrodite) because both the mother and the father of the seeds are a female plant, the odds are greater of female/male. in other words, feminized seeds is sposed to give you more females.

    love, brooke

  6. #5
    roadcam Guest
    there is no way to determine the sex of a seed by looking at it ... NO way ... that is controlled by both genetics, and environment ...

  7. #6
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    Arrow

    Quote Originally Posted by roadcam View Post
    there is no way to determine the sex of a seed by looking at it ... NO way ... that is controlled by both genetics, and environment ...

    Then the chart is incorrect?

  8. #7
    luvtogrow is offline Registered+
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    There are ways to increase chance of female from seed. Keeping temps/humidity etc within proper parameters, more blue light. Dutch Passion lists the influencing factors on their website. My understanding is that your seed will decide sometime @week2-3 what sex it will be.

  9. #8
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    Had anyone ever tried the method in the chart to prove or disprove the theory?

  10. #9
    luvtogrow is offline Registered+
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    I remember this issue many years ago and have seen numerous responses from people who supposedly checked it out. It boils down to being a myth. I can remember a breeder pointing out that if it were possible, everybody would be doing it, it would be common knowledge.Just went and looked at the faq, and that's the same one I remember from years and years ago exactly. Too bad we don't have overgrow archives to show, but I can recall someone pointing out that those are not even mj seeds in the photos, they are a type of tree seed??

  11. #10
    roadcam Guest
    their 'chart', is, in a word, "horseshit" .... but, their photos of trichome changes IS correct ...

  12. #11
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    I've been listening to Zandor's podcast and he reckons that a plant's sex is in the RNA and not the DNA, that is, it is not determined until it is a few weeks into the grow. He also gave a list of influencing factors which I can't remember right now. However some of them were:

    Using a blue spectrum light (ie MH) in early veg should mean more females, whereas using a HPS would more influence males.

    24hrs of continuous light in veg can influence more males, whereas a lesser amount of light (I believe he said 14 hours but unsure) will tip the balance towards females.

    Check out the podcast anyway, it's pretty good. I tend to re-listen to them a lot because it's impossible to pick up everything on the first go (ps, not trying to kiss the dude's ass either, just my opinion).

  13. #12
    GrowRebel's Avatar
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    If the info in FAQ is incorrect then shouldn't they take it down? ... it can cause confusion.

    At least make a statement there is no proof this method works ....

  14. #13
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    Ya know, when I was a teen it was believed by all my friends, who'd gotten the info from an MJ authority, that you told the sex of the plant by counting the pucks on the leaves. If it had 5 pucks it was male and if it had 7 it was female. Or possibly the other way around, It's been a while so I don't recall clearly. The point is that this way something that everybody who knew anything about pot knew. The people that I'm talking about didn't even know it was the buds that you smoke. They thought it was the leaves, as did I because I knew as little as they, but they were authorities and would tell anyone who would stand still long enough.

    My guess is that someone who's ignorant of MJ thought that chart up and it's now become an urban ledgend, like counting the pucks, because people who don't know squat about the subject are always trying to make shit up to sound like they know everything.
    Last edited by Tommygirl; Oct-09-2006 at 20:33.

  15. #14
    m.g. is offline Banned
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    Quote Originally Posted by GrowRebel View Post
    I did a search of this forum and I didn't find anything on the subject.

    In the faq section there is a graph showing how to sex a seed to see whether or not the plant will be female .... is this true? ..... has anyone tried this?
    this is the 1st i've seen that chart. i've always assumed sex is determined after sprouting by happenstance and environment too but it will be interesting to see how accurate this chart is...and i just happen to be starting a new batch of seeds in the very near future and will definitely be using this chart. i'll get back to y'all with the details...

  16. #15
    roadcam Guest
    that chart has been around a long time, giving bad information ... that chart is BOGUS, don't waste your time ... won't prove anything even if you did get all females, using that idea, because I've only gotten two males in 41 years of growing, doing something different almost every grow ... doesn't prove one method over any other ... but, any serious investigation is worthwhile, because that's how we learn ... have at it ...

  17. #16
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    Yes .... I think we should have a serious investigation .... the Neville's Haze I planted I used the method .... I too will report back when I sex the plants.

    41 years of growing and only two males? That seems impossible.

  18. #17
    m.g. is offline Banned
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    no time wasted checking a seed before planting...no cost either. seems like a simple 'field test' will put all arguments to rest.

    and i agree about the 2 males in 41 years seeming impossible...if that happened to me i'd be sharing my method!

  19. #18
    roadcam Guest
    no 'method', just blind luck, and love of the plant ... lol send me the seeds you refuse ... I had a male many years ago, and another a couple of years ago ... in fact, I tried purposely stressing the hell outta my last crop, in an effort to force a hermie, as I want to make some seeds ... no luck, they all stayed female ... how's that for shitty luck ? ... ... P.S. ... as any of my friends would vouch , "I don't lie" ...

  20. #19
    stinkyattic's Avatar
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    Sexing a seed is just a myth.
    You want more girls, treat them better.

  21. #20
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    It's also a myth that 24 hour lighting produces more males, at least directly. The reason why SOME people see more males with continuous lighting is because of inadequate ventilation to deal with the heat. HEAT (or other stresses) can cause more males. Erratic photoperiods can cause more males. But a nice temperature-controlled environment with continuous light does not cause more males.
    "Before you consider one an enemy, first walk a mile in his shoes. Then, if he *is* an enemy, you're a mile ahead, and you have his shoes."

  22. #21
    roadcam Guest
    not getting into an argument here, but several knowledgable sources, including Mel Frank, Ed Rosenthal, and an article I read from one of the big breeders about 'feminizing' seeds, all stated quite clearly that additional hours of light DO contribute to more males developing ... I am not a scientist, and don't pretend to be one, but I repeat: I have had only TWO males in 41 years of growing quite a few plants ... I'm not that 'gifted' of a grower, in fact, my plants seem to be either female and healthy, or female and dying ... my point is, I always followed the growing books by Frank/Rosenthal, and had great results at 18 hours of vegging light, 12 hours of flowering light ... if 24 hours works for you, hey, go for it ... but, I bet you've seen a LOT more male plants than I have ...

  23. #22
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    Quote Originally Posted by roadcam View Post
    always followed the growing books by Frank/Rosenthal, and had great results at 18 hours of vegging light, 12 hours of flowering light ... if 24 hours works for you, hey, go for it ... but, I bet you've seen a LOT more male plants than I have ...
    I follow that same pattern .... 18 hours of light veg .... 12 hours flower .... I've had plenty of males .... but I have had a good turn out of females. I usually get a female from each strain I plant.

    I'm not saying you aren't being truthful .... I just found it incredible.

  24. #23
    roadcam Guest
    well, I used to think I had a 'green thumb', but soon found out I don't ... while I have only had two males appear, I have killed many seedlings and females, by over-watering, over-nuting, too hot, too cold ... lol ... I've made every dumb mistake there is, but, somehow always managed to get females in the end ... must be my compassionate karma rewarding me, or something ...

  25. #24
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    Well I know I don't have a green thumb .... I have to work at this ..... and I have been doing it for years. For a short time I had plenty of smoke, but I let myself get lazy and I was satified with just enough to smoke ... I've gotten so lazy that I was out for a month which should not happen. I'm in terrible financial trouble .... could lose the house if I'm not careful .... but my ladies could have helped me during the crisis .... but can't because I was lazy.

    That has all changed now .... seeing that my ladies are happy is top priority now. If I can get out of this mess I mean to make sure I have enough smoke to help me out in times like this.

    I've planted several new strains thanks to friends online that donated seeds. I used that chart in selecting some of my seeds .... anytime I start with seeds I will use the chart then report back on the results when I sex the plant. .... so watch for this thread in a few months.

  26. #25
    luvtogrow is offline Registered+
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    I'm most skeptical because I know those are not mj seeds in the photo. But, I'll be watching your results and if you get 100% female (how many seeds starting?), then maybe we can get a scientific study done(kidding). I'm really interested in roadcam's growing style. What in the world could one do to get 2 males in 41 years? Besides grow only 4 seeds in 41 years. My first grow @10 years back, got all females. Never happened since, usually 60-75% female and try to follow all the instructions on high female from seed output. There must be a secret. The only thing about my first grow and this is something that supposedly brings in more females, is potted up in 5gal pots from seed. That isn't realistic to do in my grows and only did it because I didn't know better. Roadcam has a secret!!!! Please tell us.

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