[NAFEX] Pyrus Betulaefolia

Lon J. Rombough lonrom at hevanet.com
Fri Oct 28 19:32:45 EDT 2005


I don't believe anyone is growing it commercially.  My trees are 
something I was going to use for a special experiment.  The experiment 
was never  done, but was intended as a way to produce grafted trees in 
one year, versus two or three the usual way.  Wayne doesn't sell his 
stuff, either.  I don't know if the NCGR has trees or just the original 
seed in storage.
-Lon Rombough
Grapes, writing, consulting, my book, The Grape Grower, at 
http://www.bunchgrapes.com  Winner of the Garden Writers Association 
"Best Talent in Writing" award for 2003.
On Oct 28, 2005, at 2:53 PM, tanis cuff wrote:

Will there be enough of this material available soon enough that we 
should
start planning to grow it, for grafting or just regional trials?


----Original Message Follows----
From: "Lon J. Rombough" <
To: North American Fruit Explorers <>
Subject: Re: [NAFEX] Pyrus Betulaefolia
Date: Mon, 24 Oct 2005 17:28:30 -0700

Most of the commercial P. bet.  was originally collected from the 
southern
part of the range and lacks winter hardiness.  There IS cold hardy 
material,
from the northern part of the range that is hardy to -40 or more, but 
it's
not  sold commercially.  I spent some time at the National Clonal 
Germplasm
Repository at Corvallis, OR where the pear collection is kept and got a
little seed of some of the cold hardy stuff.  I don't live in a cold 
area,
but I sent some to Wayne Fuhr in Canada and he reported that the 
seedlings
took some extremely cold temperatures with no more than a little tip 
damage
to some of the shoots.   I have a few of the trees and most are small,
almost shrubby things, with the tallest no more than about 12 to 15 feet
tall.  That's the mature height.  They have potential as dwarf stocks, 
if
not cold hardy stocks, if they were propagated.
-Lon Rombough


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