nigel "good point about modern corns - interested folks might try non-super-hybridized versions that can be found in heirloom seed catalogs (of course, these can be more regionally specific."
What I said applies to all domesticated varieties of corn. The only corn that it doesn't apply to would be the unknown ancestors that existed 1000 years ago. And not merely sweet corn, but all kinds of flour corn. They all have become dependent on human care, and been bred for large, tall plants above ground, with big ears, with less attention paid to whether the root system is strong enough to hold the bigger tops and bigger ears. The wild plants that corn came from probably had ears that were only about an inch long, and the whole plants were probably only about 4 feet high, and probably at least a bit more flexible. By time the time europeans started working with corn, the american natives had already quadrupled its size to about 4 inches, over who knows how many years, and which plants were its wild relatives, was a mystery, until relatively recent efforts were made, to dig up the facts.
While some non-hybrids would be a bit better than modern hybrids, still prone to loss due to wind. Also, the varieties that are less likely to be uprooted by wind, are also less likely to thrive if re-planted. Most of our domestic plants have become unintentionally selected for being resistant to damage from human handling, and for dependency on human help. You hill up around corn plants over thousands of years -- and eventually you unintentionally breed varieties that loose the ability to stay rooted if they aren't hilled up by humans.
Most people dont' realize that plant husbandry has caused many plants to be actually dramatically different than their wild ancestors. In some cases, the simply act of human cultivation, even without human breeding for intentionally and unintentionally selected characteristics, produces plants that are dramatically different than their wild brothers and sisters, even their wild genetically identical twins (vegetative reproduction is very common in the plant world).
The cabbage family is an interesting example. Brocolli, cauliflower, head cabbage, collards, and brussel sprouts -- are all the same species and all presumably derived from the same wild ancestors. They are also closely related to mustards, turnips, and radishes. Simply transplanting a wild mustard and feeding it on human-produced soil instead of natural soil, will result in a plant that is 10 times the weight, and with dramatically larger leaves -- hardly recognizable as the same plant. Coupled with breeding for adaptation to human-prepared soil, and the differences can be astonishing. Yet despite this, there are a few plants that are thought to be very close to their wild ancestors -- that seem to have refused to change much in response to closeness to humans.