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Thread: P. 'Sethos' x P. gypsicola

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    Moderator Joseph Clemens's Avatar
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    I received my start of this clone in trade with Pyro. Thank you Pyro.



    Curious how I produced about a dozen divisions of this same clone, yet only 2 of them have grown this large, the others have remained about 2 inches across and have yet to flower. This one is in a mix of 1/2 perlite and 1/2 vermiculite, the perlite was lightly coated with iron oxice powder while it was damp and before mixing.
    Joseph Clemens
    Tucson, Arizona, U S A

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    FarmerDave's Avatar
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    nice pic

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    throckmoron's Avatar
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    That's the second time I've seen you refer to your soil mix with iron oxide, so I have to ask. Do you know what it does for the plant? Just curious, I have not seen this practice referred to anywhere else. I do have the slow development issue with many of my clones so I'll try it--

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    Moderator Joseph Clemens's Avatar
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    I was having quite a bit of chlorosis (weak, pale, yellowish leaves), often a sign of lack of iron. Since my plants are indoors, they get little actual prey (natural source of iron), so I tried adding a little Iron oxide by lightly dusting a tiny amount of powdered Iron oxide onto the leaves of a few afflicted plants, then washing it into the root zone with a light spritz of water. This appeared to reduce or eliminate the problem, so I expanded to adding some to the media, now, chlorosis seems to be nearly eliminated on those plants so treated.
    Joseph Clemens
    Tucson, Arizona, U S A

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    throckmoron's Avatar
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    I had inferred from your other post mentioning the iron that you credit it with accelerated development of leaf clones.(?) Do you think it plays a role there at all? I have never had trouble with chlorosis but I do have some very slow developing clones often. And I very often encounter what you mentioned where one identical clone grows much faster than another in the same pot or same conditions.

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    Moderator Joseph Clemens's Avatar
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    The iron may well play a role, but I can't say for sure. My current procedure is to mix dried insect dust, with Trichoderma harzianum inoculum and a little Iron oxide powder, then I sprinkle a light coating into the planting hole before inserting the plant. Later I periodically dust the leaves lightly with the same mixture and then gently mist to moisten the dust and plant together (ensures good contact). This seems to inspire strong, rapid growth most of the time, careful, too much at one time can overwhelm the smaller plants -
    Joseph Clemens
    Tucson, Arizona, U S A

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    Cardiac Nurse JB_OrchidGuy's Avatar
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    Joseph, where do you obtain your Trichoderma harzianum inoculum and Iron oxide powder. Also what is the trichoderma? Thanks.

    ALso when orchids show signs of loosing ther green we give the plants a dose of magnesium sulphate (Epson salt) 1 tsp per gallon and I have heard people say you can watch the green go back into the leaves.

    Anywho I would love to find out where to purchase these ingredients. It sounds like an idea way to fertilize too.
    JB
    Friend me on facebook with JB_orchidguy@yahoo.com.
    Growlist Updated 05/08/13

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    Stay chooned in for more! Clint's Avatar
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    Symbiotic fungi that "attacks" other fungi. Probably does other stuff, too.

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