[NAFEX] Propagation of Prunus.

Mark Lee markl at nytec.com
Mon Apr 12 13:44:37 EDT 2004


I did some more digging around the GRIN database.  There is a hybrid
called "Appleberry" (X Sorbaronia sorbifolia) developed by N. Stewart in
New Brunswick.  The database says "Fruits black, taste like an apple and
very sweet".  That sounds like it has potential as an edible.  Material
is available for distribution from the repository in Corvallis.

-Mark Lee, Seattle


-----Original Message-----
From: nafex-bounces at lists.ibiblio.org
[mailto:nafex-bounces at lists.ibiblio.org] On Behalf Of Lon J. Rombough
Sent: Monday, April 12, 2004 10:02 AM
To: North American Fruit Explorers
Subject: Re: [NAFEX] Propagation of Prunus.


Of the bunch, only the Sorbopyrus (the so-called "Shipova") is edible.
The rest either don't have fruit, or it isn't palatable.  The Sorbaronia
has intense red, almost black foliage.  I have a Crataegomespilus and it
sets heavily, but the fruits are like pure hawthorn - they won't "blet"
like a medlar.  They are edible, but not that great unless you make
   Most of these seem to be of European, possibly eastern European
origin.  The Russians made all sorts of odd hybrids looking for more
fruits for cold climates.
-Lon Rombough

I have not heard of Sorbus-Crataegus hybrids before.  I checked the
ARS-Grin database and found a number of intergeneric hybrids of Sorbus
with other rose family ediblesŠ 

X Sorbocrataegus = Mountain Ash x Hawthorn 

X Sorbaronia = Mountain Ash x Aronia 

X Sorbomespilus = Mountain Ash x Medlar 

X Sorbopyrus = Mountain Ash x Pear 

At least one of these specimens is available for distribution from the
national repository system. 

What do you know of these hybrids (who produced them, where did they

Do any of them have culinary potential? 

-Mark Lee, Seattle 

-----Original Message-----
From: nafex-bounces at lists.ibiblio.org
[mailto:nafex-bounces at lists.ibiblio.org] On Behalf Of Lon J. Rombough
Sent: Sunday, April 11, 2004 8:03 PM
To: North American Fruit Explorers
Subject: Re: [NAFEX] Propagation of Prunus. 

This may help explain something that happened to me one time.  I had a
few cuttings of a Sorbus-Crataegus hybrid I stored in the refrigerator
and forgot.  When spring came, I found them and they had produced a ring
of callus.  I treated them with Dip -n- Gro liquid rooting hormone and
planted them.  I only had a couple, but they rooted and grew.  The
person I got them from said that they had never been able to root
cuttings previously, so the method may be something to try on other
things besides Prunus.
-Lon Rombough 

MRK wrote:

In the Autumn sixteen inch cuttings are taken from the parent plant.
ends of the cuttings are Immersed in 100 ppm IBA as IBA Water Soluble
dissolved in water for 6-12 hours.
Cuttings are then bundled in groups of 25. Bundles are wrapped in
transparent plastic sheeting.
The wrapped packages are placed into crates which are piled to allow air
The crates are left in cold storage at a temperature above freezing
for the Winter.
Ethylene generation is checked regularly as it could be toxic to the
During cold storage a callus ferrule forms around the lower end of the
In the Spring the cuttings are planted in the open.

Hello all,

I have used the above basic method to propagate P. cerasifera with
slight modification and it works very well. I take 12 inch cuttings
pencil size about Nov. 1 (zone 5B), remove leaves, quick dip bottom 1/2
inch in Woods Rooting Liquid, air dry until the liquid is dry (a few
minutes). Now I bundle (hand full size) these cuttings and place in 1
inch damp milled sphagnum in a vertical position at about 60 degrees for
two weeks. During this time the basel end callouses. I then reopen the
bundle insert a little more sphagnum along the length of the bundle to
retain moisture, but not wet, wrap entirely in heavy plastic and store
vertically positioned in the cooler at about 35 degrees. I also store
apples in this walk in cooler and haven't detected any degradation of
material. In early spring as soon as ground temp reaches about 60
degrees they are placed in the growing beds, 6 inches deep and 6 inches
above ground level. At this time some of the cuttings will have already
begun to root.     

Will this work with cherries, don't know, haven't tried it. 

Jerry Lehman 

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