Gaines, You certainly can select for the best genetic traits when harvesting seeds. An average size tree may be a "tall" strain on a poor site, or a "short" strain on a good site. The biggest trees are almost assuredly a combination of "tall" strains on a good site. I can't address the Ontario materials you refer to as I have not seen them.
Ed http://nature-web-network.blogspot.com/ http://primalforests.ning.com/ http://www.facebook.com/profile.php?ref=profile&id=709156957
