Weekly export sales for corn and wheat were slightly better than expected, and this helped trigger something of an early rally for futures prices during daytime trading. General Comments Weekly export sales for corn and wheat were slightly better than expected, and this helped trigger something of an early rally for futures prices during daytime trading. Export sales of old crop soybeans and products were slim as expected, although soybean export commitments are just 3 million bushels below USDA's forecast for all of 2014/15 with four-and-a-half months left.Soybean prices gained around 7-8 cents more or less defensively in reaction to the new roadblocks erected by independent truckers dissatisfied by the lack of government response to the...