It's almost 6' tall now, and holding on to brown leaves. Two others for cross-pollination aren't as vigorous (~3'), prb'ly 'cause of limestone where they're planted near the road. I give them some acid fertilizer. I'm finding that anything I plant close to this road doesn't do well, other than Osage orange, European x Japan larch and Pitch x Loblolly pine. Hybrid vigor maybe?

That's good to hear, though I do hope that reintroduction doesn't end up tied down with red tape forever.

The college is not a secret, its SUNY College of Environmental Science and Forestry in Syracuse, where I am currently finishing my undergrad. I've gotten to know some of the professors working on this project over the years and they have been working very hard on getting this to be a success and are very friendly people. I took a tissue culture course that was taught by some of the people working on the project and got to see firsthand some of the laboratory difficulties and challenges that had to be overcome to make it work. Elm grows like a weed in terms of micropropagation but chestnut is an absolute nightmare! Resin- I beleive the gene used in the chestnut project came from a species of Wheat that just happened to have some sort of natural mechanism for fighting a similar pathogen, and it happened to work. There may in fact be a group of genes being used, I have no formal training in genetics and was never introduced to that aspect of the project. For the elms I beleive this is the case, as there are several different diseases attacking them that needed to be addressed (i.e. elmy yellows, blight). I don't know too much about that project, although as part of the field trials several of the "immune" plants were planted in a group with "baseline" american elms in front of our campus library. they are monitored 24 hours a day for both security and to compare their growth to the normal seedling elms. Only the professors know which is which. Some of the biogengineered elms come from a few plants that were found thriving in the nearby solvay wastebeds in absolutely atrocious, dry, polluted, compacted conditions- the idea being that our trees should be quite urban-tolerant!

Sharon, You make a good point, I really don't know, but what you say makes very good sense. On the site that sells Chestnut trees to the growers, they were talking about what the 'Growers' should do to maximize their crop yield is intersperse a one to ten ratio of a different hybrid. We don't need 'maximized crop yields', just enough for the furry tailed tree critters with some left over for us :) I will be starting the seeds in my green house with a heat mat under under the pots. I will post the progress on them. These are gorgeous looking nuts, far superior to those Chinese nuts you get in stores, Lou