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nafex - Re: [NAFEX] Hawthorn as rootstock for Rosaceae

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  • From: William McNam <billmcnam@yahoo.com>
  • To: North American Fruit Explorers <nafex@lists.ibiblio.org>
  • Subject: Re: [NAFEX] Hawthorn as rootstock for Rosaceae
  • Date: Wed, 3 Mar 2010 13:44:19 -0800 (PST)


 
I don't see any advantage to using hawthorn as a rootstock,
except where drought tolerance is needed.
Apparently hawthorn has a very deep root system.
My grafts were placed high (12 feet) into the crown of a mature C.oxycantha "Paul's Scarlet" becuz I had no other suitable rootstock available.
Results might be different if grafts were placed near ground level.
Medlar is doing well on the hawthorn!
One could also try using an interstem of one species or another.
 
 
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

--- On Wed, 3/3/10, Douglas Woodard <dwoodard@becon.org> wrote:

From: Douglas Woodard <dwoodard@becon.org>
Subject: Re: [NAFEX] Hawthorn as rootstock for Rosaceae
To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
Received: Wednesday, March 3, 2010, 2:44 AM


Yes, quince is susceptible to fireblight. However growing pear on quince
suppresses secondary blossom in the pear which is a major route of
fireblight infection here in the Niagara Peninsula.

The reason for my inquiry is that I have noticed a few references to
lower fruit quality in pear on hawthorn, including in the Pomona over
the years, though I have no personal experience with it. But there are
*many* different species of hawthorn.

Doug Woodard
St. Catharines, Ontario, Canada


William McNam wrote:
> Doug Woodard,

> I have grafted pear and quince on hawthorn (Paul's Scarlet...C. oxycantha?)
> The grafts  produced normal-sized fruit .
> The pear grafts have since expired ( scions were not certified
> virus-free ,or they may have succumbed to graft-incompatibility or decline.
> The quince branch is still doing well.

> There are wild/native hawthorn trees (I don't know the species) here wch
> are exceptionally drought tolerant.
> So if water is difficult to come by,pear and apples might be
> successfully fruited on this rootstock with little or no irrigation.
>  Also Quince is very susceptible to*  "fire blight" *if grown under
> irrigation wch promotes vigorous growth.
>  If you want to do an authentic test,use only virus-free grafting wood.

>  >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>
> --- On *Tue, 3/2/10, Lon J. Rombough /<lonrom@hevanet.com>/* wrote:
>
>
>     From: Lon J. Rombough <lonrom@hevanet.com>
>     Subject: Re: [NAFEX] grafting native crabs
>     To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
>     Received: Tuesday, March 2, 2010, 5:06 AM
>
>     I haven't noticed anything really obvious.
>     -Lon Rombough
>     
>      >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>     On Feb 28, 2010, at 9:05 PM, Douglas Woodard wrote:
>
>     Lon, have you noticed any difference in fruit quality or production
>     among your pears on pear, quince and hawthorne roots?
>
>     Doug Woodard
>     St. Catharines, Ontario, Canada
>
>      >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>
>     Lon J. Rombough wrote:
>      > I have Bartlett, Fall Butter and Old Home pears on Crataegus
>     douglasii
>      > that are over 40 years old.
>      > -Lon Rombough
___________


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