North American Fruit Explorers mailing list at ibiblio

[Lucky Pittman <lucky.pittman@murraystate.edu>]

From: "Ethan Natelson, M.D." <natelson@stehlinclinic.com>
To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
Date: Fri, 9 Dec 2005 10:30:08 -0600

Actually, OH x F 513 as an interstem does produce dwarfing, in contrast to Pyrodwarf, which does not.  Conference as an interstem is alleged to produce 50% dwarfing on seedling.  The interstems should be at least 12 inches in length to get the maximal effect.  I believe the Van Weil Nurseries sell Pyrodwarf.
[Ethan Natelson, M.D.]
 -----Original Message-----
From: nafex-bounces@lists.ibiblio.org [ mailto:nafex-bounces@lists.ibiblio.org]On Behalf Of lee reich
Sent: Friday, December 09, 2005 8:59 AM
To: North American Fruit Explorers
Subject: Re: [NAFEX] Best Dwarfing Rootstock for Pears?

That Pyrodwarf rootstock looks good. I wish I had known about them -- I grafted a bunch of pears last spring using a seedling rootstock and an interstem of OH X F 513. I was told that that the dwarf interstem on pear would not necessarily dwarf the tree. Where can Pyrodwarf rootstocks be purchased?

Lee Reich

On Dec 8, 2005, at 10:19 PM, Lamb Abbey Orchards wrote:

I'd have to go with Natelson's recommendation for Pyrodwarf.  My orchard is located Zone 5a/Coastal Maine and I had about 250 trees budded onto Pyrodwarf this past August after having looked into a handful of dwarfing pear rootstocks.  The best option for a hardy dwarfing pear rootstock by far looked to be this rootstock.  Check out the following PDF file:

http://tinyurl.com/dcpo3

It provides not only a good visual comparison between trees on Pyrodwarf vs. Quince EMLA C, but also quantifies fruit weight, relative yield and a few other characteristics.    I'll be planting these new trees in Spring of '07 and another block on Pyrodwarf in Spring of '08, 30 varieties total.   Ask me next Summer and I'll let you know which varieties look to be compatible with the Pyrodwarf.   I'm excited about trying it.

Cheers,

John

* * * * *

Lamb Abbey Orchards

Union, Maine  04862

lambabbey@gmail.com

http://tinyurl.com/7htst

44° 15' 47" N / 69° 18' 42" W

Message: 1

Date: Thu, 08 Dec 2005 13:25:36 -0600

From: sherwindu <sherwindu@comcast.net >

Subject: [NAFEX] Best Dwarfing Rootstock for Pears?

To: nafex@lists.ibiblio.org

Message-ID: < 439888B0.F594F2C8@comcast.net>

Content-Type: text/plain; charset=us-ascii

I'm trying to determine the best dwarfing rootstock for pears in zone

5.  I have

used Quince EMLA C in the past, with uneven results.  I realize that

there are

compatibility issues with certain varieties of pears, and that

interstems have been used

to solve that.  Just like to get the latest info on what is available.

My objectives would

be the most dwarfing possible, heartiness for zone 5, and compatibility

with pear

varieties (interstems would be acceptable, but not desirable).