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Thread: GA3 or Smoke Discs?

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    Brolloks's Avatar
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    GA3 or Smoke Discs?

    Hi all,

    I have got some Roridula and Byblis seeds which I have been itching to see if I can get to germinate.
    Now for seed treatment, I have got both GA3 and Smoke Discs but which would work better?

    Regards

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    BigBella's Avatar
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    Quote Originally Posted by Brolloks View Post
    Hi all,

    I have got some Roridula and Byblis seeds which I have been itching to see if I can get to germinate.
    Now for seed treatment, I have got both GA3 and Smoke Discs but which would work better?

    Regards
    Given that you have it on hand, I'd go with the GA3, at about 250 ppm . . .
    “Sì perché l'autorità dell'opinione di mille nelle scienze non val per una scintilla di ragione di un solo . . ."

    -- Galileo "Biff" Galilei

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    Brolloks's Avatar
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    Hi BigBella,

    Any reason why GA3 would be chosen over Smoke primer?
    I have also read that you need to use a few drops of rubbing alcohol to dissolve the GA3 before you add water, is this true?

    Thanks

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    hcarlton's Avatar
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    Yes, a small amount of rubbing alcohol is required to dissolve pure (or nearly so) gibberellins, because the chemical is naturally hydrophobic. However, the amount of alcohol used in comparison to the amount of water the solution is placed into is negligible.
    Everything has a reason, whether big or small. Never underestimate the power of what is or is not.
    There is far more to everything than meets the eye.
    Growlist

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    Brolloks's Avatar
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    ok, I have got 85% GA3 powder so will use a bit of Alcohol. The only issue is measuring such a small amount of powder is proving to be a challenge..

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    BigBella's Avatar
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    Quote Originally Posted by Brolloks View Post
    ok, I have got 85% GA3 powder so will use a bit of Alcohol. The only issue is measuring such a small amount of powder is proving to be a challenge..
    There are a number of sites which will instruct you on mixing GA3 and ball-parking the concentrations necessary for success. It is generally helpful to have a small digital scale on hand, which can be had for less than US 20.00 on eBay.

    Gibberellic acid GA3 a potent plant growth regulator
    “Sì perché l'autorità dell'opinione di mille nelle scienze non val per una scintilla di ragione di un solo . . ."

    -- Galileo "Biff" Galilei

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    Brolloks's Avatar
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    Thanks for the info!

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    Brolloks, did it work? I came across this paper recently:
    Seed germination of the carnivorous plant Byblis gigantea (Byblidaceae) is cued by warm stratification and karrikinolide - Cross - 2013 - Botanical Journal of the Linnean Society - Wiley Online Library

    Full text is probably not accessible for non-academic site. But they tested the germination of B. gigantea. Basically GA didn't have positive effect for seed germination under most conditions (temp, light combinations). But karrikinolide (KAR1) has increased the gemination rate significantly. KAR1 has been identified as the bioactive components of aqueous smoke for seed germination in many species. So smoke water would have been a better bet.

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