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Thread: Getting larger pitcher's

  1. #17

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    Dear Neps:

    Your points are taken, but I don't necessarily agree with them. For starters, putting a plant on top of a saucer with water can not be compared with putting something humid around the pitcher. the evaporation of the water will come from the sphagnum wrapped around the pitcher, as opposed coming from the saucer. Water molecules coming from the saucer may touch or not the plant when they turn vapor, while the water evaporating from the sphagnum almost always evaporates around the pitcher.

    Furthermore, the tendril wrapped around the dowel may just be a need for the epiphytic types of nepenthes to find support to develop a pitcher. Don't forget that not all nepenthes are epiphytic. On top of that, i happen to have a maxima ventricosa (epyphitic type) that even though 3 tendrils are wrapped around three different plastic rods for support are yet to develop pitchers.

    Colinliew:

    The time it takes for a pitcher to develop even in optimal conditions will depend on the type of nepenthes you are growing. the consensus is now that if you wrap around a strand of shagnum moss around the pitcher way mimic optimal conditions for pitcher development.

    Agustin

  2. #18

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    I am quite well aware that not all Nepenthes are ephiphytes.
    N. rafflesiana, the subject of my example, is not, to the best of my knowledge, an epiphytic species.

    Moreover, I was addressing the issue of merely placing a tendril on moss. Wrapping one in it, or enclosing it in a bag, is another issue. [img]http://www.**********.com/iB_html/non-cgi/emoticons/smile.gif[/img]

  3. #19

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    Well I've got a rafflesiana pitcher, a sanguinea pitcher and a truncata pitcher resting on sphagnum moss, we'll see if anything comes of it.

  4. #20

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    Dear all:

    I wanted to ask if any of you have read about photosynthesis in a nepenthes pitcher. I am sure that the pitcher contains chlorophyll which is necessary for photosynthesis, but I am also sure that the unmodified part of the leaf (regular shaped leaf) has more chloroplasts (bodies where the chlorophyll is stored) than the pitcher itself. The function of the pitcher is obviouly to trap insects or anything with protein in it.

    If this train of thought is correct then, if the pitcher receives less light thant the rest of the plant, perhaps it would not have much of an effect on the integrity of the same.

    Agustin

  5. #21
    Nepenthes Specialist nepenthes gracilis's Avatar
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    Augstin, all Nepenthes (Cp's in general and regular plants too) need light to photosynthesize regardless of the part of the plant growing. Pitchers would have a good amount of chlorophil in them but not as much as the leaves do, if a pitcher dies (which readily happens) then the ability to photosynthesize is lost, whilst a leafe is generally a much longer lived part of the plant and therefore can be concluded that it should have more chloropasts in it,as the plant can make much more use of it. The pitcher is basically a temporary food obtaining aparatus while a leafe is a much longer (not perminate) part of the plant.

  6. #22

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    Quote (neps @ Sep. 13 2003,11:39)
    Rather, I think that the reason people are seeing increased pitcher size in this context is simply due to the fact that the developing tendrils have support (they are not hanging). Consequently, larger pitchers may grow from such points without putting undue strain on the plant itself. I've observed this phenomenon many times, with plants growing in many different media. A particular example which comes to mind is that of an N. rafflesiana which was producing an upper pitcher for me about six years ago. As the tendril lengthened, I placed a wooden dowel in its path, around which it subsequently wound. This dowel was anchored to provide support to the pitcher which developed from the tendril, and it grew into the largest N. rafflesiana upper I've ever had -- 40 cm long! It was fantastic, and the dowel provided no extra humidity at all!

    The moral of the story: if you want larger pitchers, provide optimal conditions for the entire plant, and support the tendrils as they develop with whatever you have at hand.[/QUOTE]
    I have to disagree in a way. personally, my nepenthes ventricosa started to get bigger pitchers in the fall, when humidity was raised. one pitcher was on the soil, and it grew to about 4-5 inches. it then grew another pitcher that hung, which grew to almost 5 inches.

    this might not make sence, but i have to disagree with you with plants with small pitchers, at the plant can easily support it, but i agree with you with plants with large pitchers. the plant with large pitchers can't support the pitchers easily (like your 15 inch rafflesiana pitcher), so when it has support, you get larger pitchers.

    (this may go against what i have just said, but maybe lower pitchers are generally larger because they have support!? )

    ok, does this make any sence to you guys? if not, remember i stayed up till midnight, and didn't get to sleep untill 2... [img]http://www.**********.com/iB_html/non-cgi/emoticons/rolleyes.gif[/img]

  7. #23

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    ok, does this make any sence to you guys? if not, remember i stayed up till midnight, and didn't get to sleep untill 2... [/QUOTE]

    That's why a lot of things I say don't make sense. [img]http://www.**********.com/iB_html/non-cgi/emoticons/tounge.gif[/img]
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  8. #24
    Moderator Schmoderator Fluorescent fluorite, England PlantAKiss's Avatar
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    Long ago I noticed that any tendril resting on the moss in my tank seemed to produce pitchers very fast (I don't know about "larger" as there is no way to compare what the pitcher would have been sans moss). I don't know why, but its what I've observed and I'm no nep expert. So I try to make sure that moss is around my plants and it seems the leaves often drop til the tendril is resting...as if they seek it. All this, bearing in mind my neps are not HUGE, they are inside tanks and not out in a free environment like a hanging basket.

    Just my observations. But kinda neat to see others have noticed this as well.

    Suzanne
    "Fox terriers are born with about four times as much original sin in them as other dogs." - Jerome K. Jerome

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