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

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.
> From: Douglas Ewing 
> 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


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