North American Fruit Explorers mailing list at ibiblio

[Lee Reich <garden@leereich.com>]

I actually did my doctoral research investigating, among other things, the effect of mycorrhizal inoculation on blueberries, then went on to look at mycorrhiza on apples. Briefly, what I found is that under field and nonsterile conditions, mycorrhizal infection is ubiquitous and the effect of deliberate inoculation is inconsequential. Sometimes it's even hard to prevent infection even with sterile soil under greenhouse conditions. Other research, however, has occasionally shown benefit of inoculations to young plants before they are field-planted. (See, for example, work by Dr. Doud, with the USDA). At any rate, I don't imagine that mycorrhiza would have a specific effect on grafts beyond their effect on plant growth.

Lee Reich, PhD

http://leereich.com/

Books by Lee Reich:

The Pruning Book

Weedless Gardening

Uncommon Fruits for Every Garden

A Northeast Gardener's Year

On Oct 25, 2007, at 11:48 PM, dmnorton@royaloakfarmorchard.com wrote:

James,

 

You might want to check with the guys at AgriEnergy Resources in Princeton, IL.  We had them give us a second soil analysis in our soil testing this year to see how mycorrhizal treatments might benefit our apple trees this next year.  You can find them at  http://www.agrienergy.net/  Hope this helps!

 

 

Dennis Norton
Royal Oak Farm Orchard
http://www.royaloakfarmorchard.com
http://www.theorchardkeeper.blogspot.com
http://www.revivalhymn.com

----- Original Message -----

From: James G Steen

To: North American Fruit Explorers

Sent: Wednesday, October 24, 2007 6:57 PM

Subject: [NAFEX] my undergraduate research-mycorrhizae and grafting

NAFEXers,

I'm a student at Warren Wilson college in Asheville, NC.
A natural science seminar research project is required of all
science majors here and I'm thinking to test the effect of
mycorrhizal treatments on grafted potted trees (apples, pears,
or persimmons) against a control without treatment (sterile soil
medium). I would like to observe the success rate of the graft
taking.

Some questions I have are:
     1.) some mycorrhizae are specie specific, which one to use?,
     2.) where can I find a tired and true mycorrhizal inoculant suited to
      fruit trees, and
     3.) where can I find standard success rates to compare with in peer-reviewed  literature for grafting these types of fruits.

Any commentary would be appreciated, especially a pointer to where to find good research on grafting rates for persimmons, apples, and pears and where to find a mycorrhizal inoculant for them.

Fruit for humanity,

Geoffrey Steen
701 warren wilson Road
swannanoa, NC 28778
828 771 5842

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