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nafex - Re: [nafex] Compatable pears???

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  • From: Scott Smith <scott@cs.jhu.edu>
  • To: nafex mailing list at ibiblio <nafex@lists.ibiblio.org>
  • Subject: Re: [nafex] Compatable pears???
  • Date: Thu, 29 Mar 2012 09:27:06 -0400

There are many cases of asymmetric compatibility like this, for example
Japanese plums generally work well on Euro plum stock but not well
vice-versa, and apricots work on peaches but not vice-versa. It is an
asymmetric relationship in terms of the flow of sap so that must have
something to do with it, but I never heard a good scientific explanation.

Scott

On Mar 26, 2012, at 10:46 PM, Steve wrote:

> I agree that the result is surprising. Not what I would have expected.
>
>
> On 3/26/2012 10:26 PM, Jim Fruth wrote:
>> A friend has a wild pear (pyrus spp.) that bears inedible fruit. To
>> help him out, I grafted scionwood from my pears onto his wild pear. His
>> tree accepted all of my grafts. Several of those grafts were from my Ure
>> Pear. When I saw the abundance of edible fruit on his tree, I grafted his
>> wild pear scionwood onto my Ure but the Ure rejected all grafts. That is
>> curious: How can scions be accepted onto a tree whose scions are rejected
>> by the other? I guess that is one of the mysteries of Nature.
>>
>> Jim Fruth
>> Brambleberry Fruit Farm
>> 4002 Davis Street
>> Pequot Lakes, MN 56472





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