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Pollination affected by temperature?

This is a discussion on Pollination affected by temperature? within the Breeding & Hybridization forums, part of the Orchid Propagation category; I cross orchids all the time, and my pollination success rate in about 90%. Having ...

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  1. #1
    dudleyleroux's Avatar
    dudleyleroux is offline Senior Member
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    Default Pollination affected by temperature?

    I cross orchids all the time, and my pollination success rate in about 90%.

    Having said that, I have this gorgeous Phal NOID on my desk at work that refuses point blank to be pollinated. I have tried "selfing", I've brought in some pollen from another plant in my greenhouse, I've even tried taking some of it's pollen and crossing it with a plain white phal at home. Nothing works.

    My office aircon is set to around 68 F, i'm now wondering if this has something to do with it, or is this hybrid just plain sterile?

    I don't really want to resort to stem propagation, but this is such a beauty.

  2. #2
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    Unfortunately it may be just plain sterile. There are lots of "mules" out there. I haven't found temperature to be an issue when pollinating. Could it be lack of humidity with the air conditioning?

  3. #3
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    Perhaps I should move this phal into my greenhouse for a week and try again. I hope it isn't a mule. Here is the plant in question.
    Attached Images Attached Images  

  4. #4
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    I can see why you want to pollinate it. Very nice. It's a shame it's a NOID.

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    Hopefully, the temps will make a difference. I like your phal and can see why you would want to cross it. Good luck!

    Cheers,
    BD

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    I wish you good luck, I wouldn't mind doing stem propagation either

  7. #7
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    Quote Originally Posted by jeffrey6115 View Post
    Unfortunately it may be just plain sterile. There are lots of "mules" out there. I haven't found temperature to be an issue when pollinating. Could it be lack of humidity with the air conditioning?
    I would agree. It's most likely a Taiwanese import and many of those are genetically incapable of reproducing. They are often treated with chemicals to make them blooom/have more spikes that can cause problems with reproduction down the line. Also, they can be 3N which essentially makes them mules.

    Susan

  8. #8
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    I think i have identified this orchid eventually, Phalaenopsis ever-spring king "king".
    The supplier said it was "something king". Anyways, It's off the to greenhouse to warm up and hopefully produce some seed for me.

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    Phal. Ever-Spring King is a tetraploid (4N). It has over 60 registered crosses as pod and pollen parent. It breeds quite well. It must be something else that is either triploid (3N) or aneuploid. These are very hard to cross but will happen occasionally as the pod parent. Good Luck as it is a nice looking flower!

  10. #10
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    If this plant is the offspring of Ever Spring King, unless the other parent was also a tetraploid (4N), then it is almost certainly a triploid (3N) and, therefore, sterile. (A tetraploid crossed with a diploid normally results in a triploid.) I think Susan may have nailed it in her assessment.

    There are some fabulous triploid phals out there--I've been told Sogo Grape is one, for example--and it's really unfortunate when you would like to breed from them. Having said that, I think it's possible to treat the plants with something like colchicine to double the chomosomers and if that can be done, you could probably get offspring.

    Cheers,
    Rob

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