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Thread: Tissue culture "runts"

  1. #1
    killerplantsguy's Avatar
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    Hello all,
    One of my older Nepenthes is a N. aristolochiodes I've been growing over 5 years. It is still less than 7 cm across, and is producing lower pitchers about 2 cm high.

    Anyway, I'm wondering if it might be a tissue culture weakling. Plants such as N. talangensis, N. hamata and N. macrophylla are growing well in the same environment.

    Anyone out there have a similar experience?
    Thanks,
    KPG
    "You cannot depend on your eyes when your imagination is out of focus" - Mark Twain

    "Don't let it end like this. Tell them I said something." - Pancho Villa, last words.

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    In good conditions, N. aristolochioides can be an extremely fast grower, in fact it can grow like a weed. If it's more than 5 years old and is only the size oyu describe, then there is something very wrong either with the plant or the growing conditions. Given that you've got talangensis growing well, I doubt that it's the conditions (they're closely related, and require the same conditions, although talangensis can be more demanding).

    It could be a TC runt. I've got a couple of plants from TC that just don't do well, "blind shoots" being a common problem. I got so sick of one I simply binned it.

    Other than repotting your aristo, I can think of much to suggest, other than getting yourself a new one. It is a species than can go from seedling to flowering size in under 5 years, so it shouldn't be that slow.

    Hamish
    Demystifying Nepenthes: http://www.nepenthesforeveryone.com

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    Nepenthes Specialist nepenthes gracilis's Avatar
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    N. aristolochioides, in my experience and plant from TC SUCKS. It really is a disappointment to have because it does nothing, all the other highlanders do fine, so go figure.

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    well, sounds like you have nothing to lose. You might try repotting, and then spray with alliette, and or zyban. alliette has worked wonders on my aristo, and my edwardsiana hybrid. In fact I just sprayed all my plants with it to fight off some fungus that the plants in my yard like to spread to my neps.

    robin [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile.gif[/img]

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    killerplantsguy's Avatar
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    Thanks guys, for your input.

    Plant is recently repotted, and I see no signs of a fungal problem. I see on one vendors new price list, N. aristolochiodes plants are described as "most vigorous clones ever". Leads me to suspect there may have been a problem with some previous plants.

    I might add the plant looked pretty sad when I bought it. The original growing point had died, and plant was a small side shoot. The seller said most of his plants were like that.

    I'm going to try one of the "new" clones.

    Thanks and good growing,
    KPG
    "You cannot depend on your eyes when your imagination is out of focus" - Mark Twain

    "Don't let it end like this. Tell them I said something." - Pancho Villa, last words.

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    Can you summarize the conditions under which you are cultivating this plant? In particular, data such as temperature regime, water source, compost, photoperiod, whether or not you feed/fertilize the plant, presence of pests or diseases, source(s) of illumination, etc. Such information may enable other growers to provide more useful comments regarding this matter.

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    killerplantsguy's Avatar
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    Well, let me see. Day Temperatures are allowed to reach about 80F - then evaporative cooling starts up. Night teps kept around 50-52F.

    Light levels 3000 to 3500 fc - Duration varies with the season - whatever the sun provides (60% shade fabric over greenhouse).

    Daytime humidity is kept above 60% (usually around 70%), nights go above 90%.

    I water with RO water - > 10ppm ds. Plants are foliar fed monthly with MSU R.O. water formula at 1/4 tsp/gal, and I frequently supplement with ants or crickets.

    The N. aristolochiodes is growing in live sphagmum moss. Leaves are clean and healthy. It is growing alongside N. hamata, N. jacquelinae and other highlanders, which are growing very well.

    I'm really inclined to believe the plant is a genetic weakling, for whatever reason.
    KPG
    "You cannot depend on your eyes when your imagination is out of focus" - Mark Twain

    "Don't let it end like this. Tell them I said something." - Pancho Villa, last words.

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    conditions sound perfect. It could be the clone then. Do you have any pictures?
    robin

    [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile.gif[/img]

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