[NAFEX] hybrid persimmons
Lon J. Rombough
lonrom at hevanet.com
Wed Dec 12 19:45:47 EST 2007
I read up on the Russian methods years ago. "Mentoring" usually meant
grafting the male parent on the female tree, or vice versa. In this
case, it probably means they used the female parent as rootstock for
the male, the male parent as rootstock for the female, then made the
cross that way. Supposedly, the female parent as rootstock would have
affected the male on it so that the pollen would be more biochemically
compatible. At the same time, grafting the female parent on the
species being used as the male would make the female more receptive to
that species' pollen. That way, the pollen from the treated male
would be more likely to be able to fertilize the treated female.
Or, Virginiana on kaki used to pollinate a kaki grafted on virginiana.
Grapes, writing, consulting, my book, The Grape Grower, at
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On Dec 12, 2007, at 2:35 PM, Jwlehman at aol.com wrote:
It was written in Russian at the Yalta station where Rosseyanka was
bred, it was achieved by "Many years double Mentor." When I asked what
that meant they didn't know and the author had died years before. Also
it was recorded as Rosseyanka 18 giving me the idea there were several
hybrids were achieved but #18 was the best. I've not been able to
confirm that either.
One method used to hybridize difficult species is doubling the
chromosomes using colchicine. If increasing the sets of chromosome to 4
makes it easier, why don't persimmon hybridize very easily as they have
3 sets of chromosomes? Go figure!
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