Monsanto has tested its existing corn varieties to determine which ones are better for ethanol production.

SC 407 have been proven to be common corn variety that are resistant to grey leaf spot.

It is still used for Ag related research for corn varieties.

In certain corn varieties, kernels can be infected later in the growing season after flowering occurs.

All sweet corn varieties are susceptible to wilt in the first leaf stage.

This diversity also extends into agricultural crops with local corn varieties resistant to drought.

In addition to its sharply different color, blue corn has several nutritional advantages over standard yellow or white corn varieties.

As a result, the corn variety produces a toxin which affects the corn borer.

So how did transgenes ever find their way into traditional Mexican corn varieties?

His work made possible the development of the outstanding field corn varieties that are so much a part of agricultural commerce today.