On Wednesday, corn rallied in tandem with wheat and quickly prompted a flurry of short-covering.

Sep. corn closed up 13 1/2 cents to $3.76 1/4, while Dec. corn finished up 13 3/4 cents to $3.90 3/4.

Most traders concur that wheat was a major catalyst for the move in corn.

It is now widely known that there are lingering issues with the wheat crop in Russia and traders foresee a reduction in available feed-quality wheat, which, naturally, is a competitor for corn.

While wheat has put on a great show in recent days, corn clearly usurped its thunder.

Mike Zuzolo, president of Global Commodity Analytics & Consulting, tells the Dow Jones Newswire that a widening wheat-corn spread "will make corn more attractive price-wise to end-users."

"The corn is stealing demand from the wheat right now in my opinion," he said.

Zuzolo added that traders are "more concerned about the weather for soybeans, which has a later growing season. A rally in soybeans would support corn."

Next on the radar for many traders, of course, is the weather for soybeans. Should any factors emerge that ultimately drive beans higher, corn could get further support from that development.