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Thread: D. madagascariensis Flowers, Self?

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    Tropical Fish Enthusiast jimscott's Avatar
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    D. madagascariensis Flowers, Self?

    A few years ago I had a plant flower. The pod, however, had no seeds. Were my conditions not optimal or did I need to hand-pollinate or did I need to have another plant? Another is sending up a scape. What should I do?




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    CPlantaholic's Avatar
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    hey jim, D. madagascariensis is self-fertile and can self-pollinate, but it never hurts to help them out occasionally. However, mine have always shot up into my light fixtures and burn once they've flowered, so I haven't been able to collect viable seed yet .
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    mcantrell's Avatar
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    Not sure, mine flowered and I have 2 little seedlings that came out, but I also had some roots break off during repotting which I just threw into the pot with the new soil. So... Could be either.

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    Hello, I must be going... Not a Number's Avatar
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    Most South African Drosera will self-pollinate but outside of D. capensis it is hit-or-miss. It helps to hand pollinate but even then it is hit-or-miss - just better chances of a hit.

    Drosera regia helps if you take day old pollen.
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    RL7836's Avatar
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    Quote Originally Posted by Not a Number View Post
    Most South African Drosera will self-pollinate but outside of D. capensis it is hit-or-miss. It helps to hand pollinate but even then it is hit-or-miss - just better chances of a hit.

    Drosera regia helps if you take day old pollen.
    While I'm not familiar with this plant, 2 issues come to mind with pollination - even if self-fertile:
    - inside a terrarium or very humid spot, pollen sometimes does not become friable and won't transfer from stamen to stigma. Many of my self-pollinating, self-fertile dews won't produce seed inside a terrarium...
    - iirc - with D. regia (like VFTs), the stamen becomes receptive after the pollen becomes mobile. This may be true with other dews...

    Sure wish we had a web-based reference with all of the dews and their pollination, fertilization status. Most dews are both self-pollinating & self-fertile. However, there are lots of exceptions & special cases... Petiolaris complex is neither, D. regia is self fertile but not self-pollinating (?), most D. binata's are not self-fertile iirc (w/ exception of one small red plant that becomes a weed), the 'sisters' rarely produce seed at all (not self-fertile?, conditions too humid for mobile pollen?) & on & on ... Hey Aaron - sounds like a great project (hint - hint) ....
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    Tropical Fish Enthusiast jimscott's Avatar
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    Thanks for the feedback. I'll have to try hand-pollinating. I understand that pollen is produced continuously for a few days. Is that right?

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    CPlantaholic's Avatar
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    Quote Originally Posted by RL7836 View Post
    Hey Aaron - sounds like a great project (hint - hint) ....
    haha. aww man, I actually tried starting that a while ago, but ran out of time. I'll try to work a little at a time to finish this one.
    Visit The Sundew Grow Guides: http://www.growsundews.com
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