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["lester davis" <lhdavis8@knology.net>]

I have 20 Kaki grafted onto Virginiana, many are 20 years and no sign
of incompatability.  Most are Mekawa Jiro, also some Jiro, Ichiki Kie Jiro,
Fuyu, and Hanafuyu as non-astrigents.  Also two astrigents, Saijo and
Giombo.     Hanafuyu does not make a pretty graft union, the bark is 
ruffled-up at the union which allows borers to penetrate the wood more easily.
The graft union  appears strong and all of the Hanafuyus have been 
topworked into Mekawa Jiros.     Fuyu has the same problem but to a much 
lesser degree.   The other varieties have smooth graft unions with
no over growth in either direction.  

Every variety of Kaki that grows here is susceptible to Kaki Sudden
Death but that is not a rootstock incompatability problem and I lose
at least one Kaki every year to it.

Lester H. Davis
Columbus, GA
8A-8B
>From Jwlehman@aol.com  Wed Aug 10 23:19:12 2011
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From: Jwlehman@aol.com
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Date: Wed, 10 Aug 2011 23:19:10 -0400 (EDT)
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Subject: [NAFEX] 90-C Persimmons graft-rection (long-term) on 60-C
        Persimmons?
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In a message dated 8/10/2011 2:50:41 PM Eastern Daylight Time,
filtertitle@aol.com writes:

> A friend of mine has shown me a scenario in which ALL of his Asian
> persimmons (D. Kaki; 90-chromosomes) experience the onset of 
> graft-rejection when
> grafted upon American persimmon (D. virginiana; 90-c strain) after about
> 15 years.  The only example in his orchard that does not demonstrate decline
> of D. kaki on D. virginiana is where a hybrid persimmon (D. kaki x D.
> virginiana cv. 'Rosseyanka') has been used as an interstem adjoining the two
> species.

Dr. Kay Ryugo, UC Davis, established a kaki orchard grafted onto 90 C
virginiana located at Winters CA. in the Wolfskill orchard, hort. test grounds
for UC Davis. I've had the wonderful experience of visiting that kaki orchard
at least 3 times starting about 1995. According to my records there are at
least 20 varieties and many are on two trees. I firmly believe at that time
the age of the kaki orchard section was well over 15 years. Having said that
I must admit I don't know when it was planted but the trees were all large
enough that I climbed around in them.  I don't remember noticing any signs of
graft incompatibility between any of the varieties and the virginiana
understock.

Maybe someone living near there could update us on the orchard condition.
Dr. Ryugo retired maybe 10 years ago.

Jerry