Amorphophallus Propagation

From: "WEAVER,BILL (HP-USA,ex3)" bill_weaver at hp.com> on 2001.10.11 at 21:43:03(7623) Someone on this list had previously mentioned the possibility of stem (or more precisely petiole) propagation of Amorphophallus species. I was wondering if I would have any success with leaf(let) propagation of some of the larger species? Specifically I was planning to remove a single leaflet from my A. titanum, treat it with rooting gel, bury the cut end in potting soil and put the whole thing in a plastic bag. Would I and up with a new plant or just mush? Thank You for any help Bill Weaver +More bill_weaver@hp.com

From: Clark Riley drriley at mypcr.com> on 2001.10.12 at 03:15:16(7629) I have tried petiole propagation of Amorphophallus titanum thrice with no success. Doesn't mean it can't be done, just my results. I will keep trying. Clark Riley +More Baltimore, Maryland, USA Clark T. Riley drriley@mypcr.com http://drriley.mypcr.com/ Production Services by Clark Riley Full Service . . . Pen to Page since 1990

From: "Petra Schmidt" petra at plantdelights.com> on 2001.10.18 at 15:15:31(7638) I've done leaf cuttings in the past (at MO and now at PDN) and some species do very well; patience is the key because with or without rooting hormone, the new leaf/tuber that forms is slow-going. I've found certain areas of the leaf "take" better than others and that keeping the cut leaf material ever-so-slightly misted works better than watering with a typical water-breaker head; therefore, if you have a mist chamber or automated misting system, you'll increase your success rate. I've also tried petiole cuttings and am not quite convinced they'll "take" as well as the leaf cuttings but I'm finding that partially cutting through the full-length of the petiole (keeping the petiole whole) and laying the petiole onto slightly damp milled spaghnum (covered with a plastic domed lid) seems to work; the cuts slowly callous and form tubers. In any case, this is still an experiment in progress and I've tried quite a few different cuts and methods of rooting leaves and petioles. The really exciting news is that this spring I tried tuber cuttings...yes, tuber cuttings; diced and sliced and chopped and cut those tubers into chunks and pieces and bits; I won't go into details right now on this but I've recently dug up those tubers and have seen very good results. Those that survived put out good growth for the summer and the new tuber that formed is perfectly normal; those tubers that took longer in producing new growth are just now forming leaf buds, some with 2-3-4 buds per cut-tuber...it was exciting to see these slower-recovering cut pieces because I could look at the cut pieces and see what was happening with the new tuber...anyway....I'll continue this process next season and will keep you posted. Petra +More ----- Original Message ----- To: "Multiple recipients of list AROID-L" Sent: Thursday, October 11, 2001 5:43 PM Subject: Amorphophallus Propagation > Someone on this list had previously mentioned the possibility of > stem (or more precisely petiole) propagation of Amorphophallus > species. I was wondering if I would have any success with leaf(let) > propagation of some of the larger species? Specifically I was > planning to remove a single leaflet from my A. titanum, treat it > with rooting gel, bury the cut end in potting soil and put the > whole thing in a plastic bag. Would I and up with a new plant > or just mush? > > Thank You for any help > > Bill Weaver > bill_weaver@hp.com >

From: StroWi at t-online.de (StroWi) on 2001.10.19 at 04:53:27(7644) Petra, do you maybe have some pictures of the leaf and/or petiole cutting method so that it is more understandable for me (and mybe others) how this kind of vegetative propagation works with Amorphs? Or would you know a site where the methods are visualized? I heard from Wilbert before that these methods are also used with A.titanum, but I am afraid I did not get it how it is really done. It would be great to get some advise. Greetings, Bernhard. +More Dollbergen/Germany approx. zone 6/7 Petra Schmidt wrote: > I've done leaf cuttings in the past (at MO and now at PDN) and some species > do very well;

From: Durightmm at aol.com on 2001.10.19 at 05:54:03(7645) It seems that more success propagating Amorph leaves are from those with heavy texture and noticably enlarged axils. It is trickier to get otheres to respond favorably. As for tubers they are much like DIOSCOREA that seem indestructible. D. elaphantopis tubers survived the mower. They grow in shallow soil and under pine trees exceptionaly well. It seems reasonable that as with caladiums most ropical tubers respond to disecting Joe

From: Betsy Feuerstein ecuador at midsouth.rr.com> on 2001.10.19 at 15:26:35(7646) Joe, your Dioscorea can be grown from a stem cutting. It takes one heck of a long time, but I vouch from personal experience that it can be done. I did it before I knew that it was not supposed to be done. Someone had one I wanted and I remember asking, does that grow from cuttings and he gave me a cutting to get me off of his back for wanting a tuber. It worked. I still have the plant. Betsy +More Durightmm@aol.com wrote: It seems that more success propagating Amorph leaves are from those with heavy texture and noticably enlarged axils. It is trickier to get otheres to respond favorably. As for tubers they are much like DIOSCOREA that seem indestructible. D. elaphantopis tubers survived the mower. They grow in shallow soil and under pine trees exceptionaly well. It seems reasonable that as with caladiums most ropical tubers respond to disecting Joe

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