North American Fruit Explorers mailing list at ibiblio

["Rodney Eveland" <Reveland@collinscom.net>]

http://www.msue.msu.edu/fruit/rootstck.htm

You can follow the Ron Perry routes if you prefer apples (as if that
were possible). Click on Greg Lang if you prefer real fruit (cherries).
After taking the preferred "Lang" route, click on sweet cherry research
on the left side of the page, then sit back and enjoy the material.
There are lots more links you can then follow. At the bottom of Root
Stock page you can find even more places to follow and read. The gist of
it is that rootstocks are as important as scions - maybe even more so if
that is possible.  Rodney Eveland