North American Fruit Explorers mailing list at ibiblio

[Bob Bors <bob.bors@usask.ca>]

In zone 2, Saskatoon Saskatchewan we’ve been using Ottawa 3 but found it susceptible to fireblight in 2008 and 2009.

Bud 9 and Ottawa 8 were our next best choices.

We are trying some Bud 9 x Ottawa 3 seedlings that we made and have screened some for fireblight resistance but the lines are to young to know if they will be dwarfing.

 

The first 2 years are crucial, after that we tend not to have winterkill with dwarfing rootstocks.  We suspect that it is our hardy scion varieties that are carrying the borderline hardy rootstocks.

 

We’ve been growing the ‘V’ series which has been surviving above the snow line in winter for 2 winters. By that I mean letting the rootstocks grow into trees by themselves. But only this season did we get permission to propagate and test them on our varieties.

 

 

 

Dr. Bob Bors

Assistant Professor

Head of the Fruit Program

University of Saskatchewan, Plant Sciences Dept.

51 Campus Drive, Room 2C02

Saskatoon Saskatchewan, S7N 5A8

 

Fruit program website:

http://www.fruit.usask.ca

Phone 306-966-8583, Fax 306-966-5015

 

 

 

 

From: nafex-bounces@lists.ibiblio.org [mailto:nafex-bounces@lists.ibiblio.org] On Behalf Of david liezen
Sent: July-18-10 11:36 AM
To: Nat'l Ass'n of Fruit Explorers
Subject: Re: [NAFEX] Apple tree's/rootstocks for zone 3

 

Zone 2?!? Ach, du Lieber... 
Folks are often mystified to learn that, altho Spokane actually lies north of anywhere in Maine (and probably comparable to you in Minn.), our weather is both more moderate due to winds mostly coming from the Pacific O. and drier because of the intervening Cascade mts. Some cultivars don't do well with our fairly short growing season - or the heat, or the dry. Hence the spirit of adventure in contemplating apples not commercially grown around here.
                      Dave Liezen
 
> From: ernestplutko@wiktel.com
> To: nafex@lists.ibiblio.org
> Date: Sat, 17 Jul 2010 16:42:56 -0500
> Subject: Re: [NAFEX] Apple tree's/rootstocks for zone 3
>
> Dwarfing rootstock doesn't grow well (dies) in really cold areas. If
> your apple trees live where you are the cold weather will dwarf them
> to some extent. What zone do you live in and what area? If your
> trees are living and you get apples you are doing well. Ernie zone 2
> Minnesota
>
> ---- Original Message ----
> From: whirlinghurly@yahoo.com
> To: nafex@lists.ibiblio.org
> Subject: RE: [NAFEX] Apple tree's/rootstocks for zone 3
> Date: Sat, 17 Jul 2010 14:30:09 -0700 (PDT)
>
> > I just joined a couple weeks ago so I wanted to say hi, and to ask a
> >couple questions about growing apples in the cold zones like northern
> >Minnesota. I've read all the literature form the U of MN which isn't
> >bad, but there seems to be conflicting information so here I am.
> >Right now I have 2 haralson and 1 crabapple tree which do well here.
> >The only things I do is prune them a little and collect apples. Not a
> >lot of pests or insect damage so they've been pretty easy. We bought
> >them from a nursery long time ago so I'm assuming a standard
> >rootstock. I want to try some dwarfing rootstocks and some other
> >apple, but our nurseries around here don't sell them so I'd have to
> >look elsewhere.
> >Basically I have 2 questions:
> >What dwarfing rootstocks will grow well in the cold?We hit 40-50
> >below 0 frequently. I have about 18-24 inches of topsoil, with a
> >softer clay pan beneath it(meaning I can dig it out pretty easily)
> >and we grow a lot of corn, alfalfa and oats.
> >Also from the U of MN info, doesn't look like a lot will actually
> >grow for apples, maybe sweet 16 and haralson. Do you have any others
> >that you'd recommend. I am mostly looking for eating and cider
> >apples. The nursery had beacon and chestnut crab, goodland and a
> >couple others.
> >
> >thanks
> >jim
> >
> >
> >
> >
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