https://www.google.com/#q=mycorrhiza...+with+tomatoes
Anne check the link above for the relationship between mycorrhizae and tomato roots and benefits to the plants.
There are different kinds of mycorrhizae, and it seems to explain what I and others have seen, albeit not very frequently'
I'm not talking about adaptation in terms of landraces, heaven forbid, for we've had some very contentious threads here about landraces recently which is why I wanted to make it abundantly clear that it had nothing to do with landraces...
As you can see from the source list in the back of my book my Hungarian Oval seeds were from TN and my Santa Clara seeds from the USDA when it was still possible to request tomato seeds from the USDA/
Another one I initially had problems with was:
http://tatianastomatobase.com/wiki/A...%27s_Jumbo_Red
Which is in my book and my seeds were from Andrew Raharts son John who grew his father's varieties in WY and I mention it now b'c it was John who first suggested to me about a possible mycorrhizae association, but my Google search above shows that much more info is now known, note the link to the one lab where that's all they study.
And I'm also remembering that he sent me quite a few Devil's Claw pods, but I never removed the seeds, and which I hadn;t even asked him for.
Carolyn