I have just been reading about a new project in Scotland that plans to build a huge stock of seed in domestic freezers within Highland communities, against the hard times to come when peak oil causes widespread disruption of food supplies to the region. You can read more at:
I wonder, I bet CSU (Colorado State University) would know.
I'll look around and see if I can find some source info for you. (No guarantees, so if I don't get back to you, I couldn't find it.)
if you think brussel sprouts are yummy, you should try any other food. And this tiny ad:
Dave Burton's Boot Adventures at Wheaton Labs and Basecamp