agustin franco

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  • Location
    Sydney, Australia
  • Interests
    cephalotus, Nepenthes, Heliamphoras

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  1. Hi all: It's been a while since i post anything on the forums. I would like to say that in my opinion, there are large cephalotus and regular size cephalotus. The main issue is how to differentiate these when both types produce small traps at some stage in the life of the plant. So far, i have only seen small cephalotus plants producing small traps and large cephalotus plants producing both small and large traps. This why i believe there must be a genetic predisposition for some cephalotus to produce large traps. Hence, we call these "giant forms Gus
  2. Hi Silverman93, perhaps the word tiny was not the appropriate one to use. If we go back and use a ruler, any cephalotus pitcher less than 4 cm from the bottom of the pitcher to the mouth should be considered typical. Any cephalotus pitcher, on the other hand, with a pitcher of more than 4 cm from the bottom to the mouth should be considered a giant form. Again, the lid should not be measured at all as it changes positions depending on the relative humidity around the plant. Gus
  3. Hi all: I am still convinced that the cephalotus follicularis has at least 2 forms. standard (tiny pitchers) and giant (large pitchers). While it's possible for a giant form to produce small pitchers, depending on the season, light, humidity, etc. I am yet to see a standard cephalotus produce a set of large pitchers. I do believe that there are genetic differences, but these need to be studied further. Gus
  4. Hi John: you should measure the pitchers from the bottom to the mouth. That's the standard way of measuring ceph pitchers. The lid does not count as it may move up and down depending on how much humidity the plants is growing in. Gus
  5. Hola Tuuagso: Muy bonita tu presentacion. El problema que veo es que cuando estas plants se conviertan en lianas, no va haber pescera grande que las contenga. Claro despues de 5 a 10 anios. Mientras tanto gozalas. Saludos Agustin
  6. Hi all: Thanks for your answers. I think some of you have answered the question. It's possible to induce mutations in tissue culture, as long as, the conditions are artificially created for this event to occur. Of course, a novice in the area, may inadvertently induce mutations, by adding too much hormones or specific chemicals. However, the point i would like to discuss is whether plant propagation in TC without any deliberate or accidental intervention induces mutation?. I believe the answer to be NO, but i may be wrong. Thank again Gus
  7. Hi all: I would like to open this discussion to present evidence for and against the hypothesis/theory that artificial plant propagation using standard Tissue culture procedures induces mutations. We all know that in the horticultural industry, plant tissue culture is widely used. However, some plant breeders criticise this practice, because of the reasons mentioned above. It'd be helpful if plant growers contribute to this discussion. My first question is: is there scientific evidence to corroborate this hypothesis? Cheers, Gus
  8. Hi there: has anyone actually done this experiment? How do we really know that some seedlings will be normal and some will be giant?. Maybe they are all normal or they are all giants! Gus
  9. Hi all: Even the word "purposeful" is misused in this context. there is no purpose as opposed to function. Purpose, again is mediated by rational thinking. Function, on the other hand, is what most biological structures have. If they don't have it, they lose it. ie, limbs in lizards as opposed to no limbs in snakes. Gus
  10. Hi there: I think it is a hybrid between nutans X heterodoxa.
  11. Hi Thez_yo: You would need temperatures down to 55ish for them to settle nicely. Gus
  12. Hi all: One of the worst things one can do to a cephalotus plant is to remove the soil around the roots. Unfortunately, it'll setback and you'll see more dead pitchers. sorry Gus
  13. Hi Phil: I definitely agree with you with regards easily having little genetic diversity and very difficult to have too much. However, the TC example is very limited and the logic will only work, if the TC technician decides to propagate a couple of clones when he or she may have actually 40 or so to choose from. If they propagate all of them, the genetic diversity inside the TC flask has been preserved. Now if you only have two clones to start with, and you only propagate from these two, yes there is not much genetic diversity at all. Gus
  14. Same here! No special growth requirement. The ventricosa red X talangensis clone is very prolific. which clone are you referring to? Gus
  15. Hi there: There may be many reasons why a ceph dies. After looking at your photo, i'd go for too much heat without humidity. If you notice the lids are closed. the pitchers look tender. Cephs can withstand heat, but with high humidity. Gus P.S By the way, i've killed at least 10 cephs, before i learned how to grow them