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nafex - Re: [NAFEX] Do your Asian persimmons/Kaki graft-reject on D. virginiana or D. lotus rootstock? Data...

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  • From: Hal Love <lovehd@comcast.net>
  • To: North American Fruit Explorers <nafex@lists.ibiblio.org>
  • Subject: Re: [NAFEX] Do your Asian persimmons/Kaki graft-reject on D. virginiana or D. lotus rootstock? Data...
  • Date: Wed, 4 May 2011 15:03:52 +0000 (UTC)

My D. kaki have not been grafted over 15 years, just 7 years, so this may not
be relevant, but they are on wild D. virginiana. I am almost certain that we
do not have the 90-c persimmons here in TN, just the 60-c. They are doing
great with no sign of rejection. My D. kaki are astringent types (Hachiya and
Chocolate) plus one hybrid (Rosseyonka). The graft unions are very normal
looking, and if not for differences in the bark, it would be hard to really
see the unions.

Hal


----- Original Message -----
From: "Steven Covacci" <filtertitle@aol.com>
To: nafex@lists.ibiblio.org
Sent: Tuesday, May 3, 2011 11:07:44 PM
Subject: [NAFEX] Do your Asian persimmons/Kaki graft-reject on D. virginiana
or D. lotus rootstock? Data...

Group:


For all who grow Asian persimmon (D. kaki) and have had their trees for OVER
15 years that are on either D. lotus or D. virginiana rootstock....




Please describe your LONG-term experience with Asian persimmon on D. lotus
(date-plum) or D. virginiana (Americana persimmon) roostock. List cultivar,
roostock (D. lotus or D. virginiana), and age of tree/graft.


Some say that their trees reject after 10 to 15 years; I suspect either graft
rejection due to incongruence between the scion and understock, eventually
being made manifest OR perhaps... borers, that are attracted to the scaring
between the two - which could, if so, be treated.


Notes: D. kaki and D. lotus are 90-chromosome species, yet some describe a
difference in graft-compatability (inter-specific) between astringent D. kaki
and D. lotus and non-astringent D. kaki and D. lotus. D. virginiana is either
60-c or 90-c (northern strain); only the 90-c strain will be suitable for D.
kaki, being of like number. I'm not sure if I recall that some cultivars
(astringent or non-astringent) are not suitable for being placed upon D.
virginiana.


Thanks,
Steve; NJ 7a/6b
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