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Thread: how to get gemmae?

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    alec's Avatar
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    how to get gemmae?

    Right now my pygmy drosera is in my growrack at a 14 hour photoperiod. I will probably lower the photoperiod to 13 for a couple months this winter, but I want to get gemmae sooner for a trade.
    could I move the plant to a windowsill?
    it would be colder and there would be less light, but It seems like too much of a change.
    Should I just change the photoperiod in rack now?- would 1 or 2 hours different even be enough for it to produce gemmae?
    Thanks a bunch,
    Alec

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    Tropical Fish Enthusiast jimscott's Avatar
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    Gemmae are typically produced in the fall / winter time, following the hot and dry period (nature). But even our window sill plants that aren't getting the extremes, mimicking nature, they still produce the gemmae as the temps drop and photoperiod decreases. As with any of our plants, it is best to do things gradually.

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    Hello, I must be going... Not a Number's Avatar
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    People that I've talked to that reduce their artificial light period usually lower it by 4 to 6 hours.
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    Hm, should I be worried that my plants haven't started making Gemmae? I have some D. 'pulchella x nitidula' and a single surviving D. scorpioides in a communal pot. They are on a shelf next to my window with a 60W desk lamp on them, I turn on the lamp at 7 AM when I leave for work and turn it off when I get home at 7-8 PM, they also get decent enough sun, indirect all day and direct sun that starts around 1-2 PM and ends around 6 PM.

    They were originally in 2 individual pots and a communal saucer, that wasn't working so I transferred them into one big 7.5" pot and they actually started thriving. I repotted them because the media started to smell a bit, I was over-watering and the media was rotting. At the same time I repotted I started watering more frequently but with less water, using a turkey baster or 2 each day.

    Any way to induce gemmae growth, or should I just assume that due to their rough summer they won't be doing it this year?

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    well, my pulchella x nitidula didn't produce any gemmae either, but keep in mind, mine were kept indoors in around 75-80 degrees F w/ a 10 hour photoperiod. The only thing that produced gemmae under these conditions were the omissa x pulchella. So if you're planning to keep them indoors, changing the photoperiod may not do it for you.
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    mcantrell's Avatar
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    Outdoors isn't an option, I'm in Zone 6 (or 5, depending on who you ask). Outside would kill them rather quickly, I think.

    I guess I'll worry about it more once I have a plant rack set up and can reliably work on photoperiods. Hope they don't die before I can get some Gemmae.

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    白人看不懂 Drosera36's Avatar
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    If you do reduce your photoperiod, do not do it all at once; it should be gradual over the course of several weeks. Ideally, you should've started that a few months ago, but it should still be ok. They might not produce gemmae, or, if they do, it will be considerably later than normal.

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    CPlantaholic's Avatar
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    Quote Originally Posted by Drosera36 View Post
    If you do reduce your photoperiod, do not do it all at once; it should be gradual over the course of several weeks.
    maybe that was my problem....
    what pygmies produce gemmae for you when you use this technique, Drosera36?
    are there certain types that don't work w/ this method?
    thanks,
    Aaron
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