Re: [Aroid-l] Leaflet use for tuber production.

From: Douglas M Ewing <dewing at u.washington.edu> on 2007.01.27 at 19:30:08(15177) Bernhard, I use cuttings of 25-30cm long. I have to fold the leaflets a bit to get them inside the pop-bottle. The leaflet tissue takes maybe 4 months to die. Sometimes the tuber will take 3-4 months to send up a new leaf. Doug +More _________________/\/\/\______________________ Doug Ewing, Greenhouse Manager (206) 543-0436 Department of Biology University of Washington Box 351800 24 Kincaid Hall ( for UPS and FEDEX) Seattle, WA 98195-1800 On Thu, 25 Jan 2007, StroWi@t-online.de wrote: Doug, what is the actual size of the leaflet in cm or inch you use? And what is m eant by several month? I guess at least 2...... ;-) It is very impressive that you get tubers of several cm diameter. How long do they take to grow the first leaf then? Good propagating, Bernhard. -----Original Message----- Date: Thu, 25 Jan 2007 17:48:03 +0100 Subject: RE: [Aroid-l] Leaflet use for tuber production. To: Discussion of aroids I have been cloning A.titanum via leaflet cuttings for a number of years now. I put the piece of leaflet in a miniature greenhouse constructed of 2 clear 2 liter pop bottles. I insert the cutting into a block of rockwool, or a small pot of peat-based potting soil. I do not use rooting hormone applications- I was under the impression that this might delay, rather than speed, the development of shoots, since they are auxins. Either way, one is interested in getting the leaf cutting to produce a shoot ( albeit modified into a tuber) not roots. After several months of being closed in this high humidity capsule, the leaf turns yellow, then brown, then finally is removed and I find a tuber below the media surface that is a couple of centimeters in diameter. When setting up this cutting, and periodically as needed, I dust the plant with my fungicide of choice- cinnamon powder, the stuff you put on your oatmeal. This works remarkably well to reduce fungal problems in the high humidity. Doug _________________/\/\/\______________________ Doug Ewing, Greenhouse Manager (206) 543-0436 Department of Biology University of Washington Box 351800 24 Kincaid Hall ( for UPS and FEDEX) Seattle, WA 98195-1800 _______________________________________________ Aroid-l mailing list Aroid-l@gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l _______________________________________________ Aroid-l mailing list Aroid-l@gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l

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