To: "nafex@yahoogroups.com" <nafex@yahoogroups.com>
Subject: Re: [nafex] Pear rootstock question
Date: Sun, 13 May 2001 08:51:03 -0400 (EDT)
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Thanks to all for OH x F 513 info. I should have looked at your Web site,
Jim! It's also mentioned in Childers
and van der Zwet "The Pear".
I am surprised to see OH x F 51 described as susceptible to fireblight.
Carlton plants describe(d) it (circa
1982) as resistant. This has been borne out by my own experience with it.
My orchard is in the highest blight
pressure part of the country- the Southeast and I have never lost a single 51
to blight in over 15 years. In
fact, I have several mature 51 trees where the scion variety was killed by
blight years ago, but the blight
stopped at the 51 rootstock. Not even any blight cankers on any of the
several dozen 51 trees in the
orchard. It's part of the reason I so love that stock (and the fact that I
can pack the trees together on 8 foot
centers and they stay managable).
Yorrba
On Sat, 12 May 2001 18:18:45 +0000, jim wrote:
>OHxF 513 is quite different from OHxF 51.
>OHxF 513 is
> More vigorous (about 70% of standard);
> Fire blight resistant (OHxF 51 is susceptible);
> Cold hardy (OHxF 51 is relatively tender);
> Induces early fruiting (as does OHxF 51);
> Is propagated with difficulty;
> Liners have relatively few spines.
>
>//Jim
>www.cumminsnursery.com
>
>
>Yorrba wrote:
>
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>> One Green World lists Old Home x Farmingdale "513" rootstock in the
>> catalog. I can't find this accession
>> listed at NCGR and I've never heard of it. The description sounds a lot
>> like OH x F 51 which I have used
>> and is still my favorite pear roostock- but I've been unable to find a
>> source recently.
>>
>> Is "513" a typo? As you can see, I'm copying this to the NAFEX newsgroup,
>> 'cause I'd like to hear from
>> anyone, especially in the hot humid Southeast who has experience with OH x
>> F 513.
>>
>> Thanks,
>>
>> Yorrba
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