Because of current conditons, both Kansas City and Chicago wheat contracts will take price directions from corn contracts for a while longer as it is presently premature for them to assume an upward leadership role.Prices move higher in commodities when market conditions are such that the majority of traders buy either because they expect even higher prices or those holding short positions are forced to exit by purchasing back their contracts. In the short run, neither of those conditions seems to exist at current price levels for corn, wheat or soybeans. Therefore, a limited selloff is expected in the grains and soy complex that could last for a few weeks right into the first of August.The U.S. corn crop is poised to go into pollination wi...