[nafex] revisiting interstem

Lee Reich leeareich at gmail.com
Mon Jan 28 16:10:30 EST 2013


Nobody has fully explained how dwarfing rootstocks or interstems exert their effect. 

Lee Reich, PhD
Come visit my farmden at http://leereich.blogspot.com/
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On Jan 28, 2013, at 3:27 PM, tanis cuff wrote:

> 
> Please correct this if wrong.  If I remember my botany, some plant nutrients move upwards in the interior part of the stem, while others move downwards in the cambium just under the bark.  Both have an effect on the dwarfing of a graft.  If you switch the topwork & rootstock cultivars of an interstem combo, you are asking the 'assembly line' to run in the opposite direction.  I would like to see side-by-side comparisons, before relying on doing many for expected production.
> 
> tc, s.WI, 0 F one day, 0 C the next
> 
> ----------------------------------------
>> Date: Tue, 22 Jan 2013 16:08:52 -0600
>> From: antonptak at gmail.com
>> To: nafex at lists.ibiblio.org
>> Subject: Re: [nafex] revisiting quince - compatibility if reverse scion and rootstock
>> 
>> One more question on this - I find references to using OHF interstems on
>> quince to increase compatibility with some pear cultivars. If
>> compatibility works in one direction, should it not also work in the
>> reverse? i.e. if OHF pear interstems on quince are compatible, would
>> not quince grafted onto OHF, or is there some horicultural aspect of
>> compatibility that does not necessarily permit someone to draw that
>> conclusion? Alternatively, anyone's personal experience regarding this
>> would be also be quite interesting.
>> 
>> It would also be interesting to hear of this concept applied to other
>> species as well.
>> 
>> Anton Ptak
>> Zone 4a W. Wisc
>> 
>> 
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