THE OPEN July beans:  20 lower July meal:  6.20 lower July soyoil:  64 lower July corn:  17 lower July wheat: 7 1/2 lower The markets opened in line with trade expectations, but poor export sales and a negative reaction to the report yesterday set a deeper sell-off in motion.  Sell-stops were triggered in many of the markets as prices worked lower making today an exchange of ownership as funds sold into commercial scale-down pricing activity.  Oilshare traded higher as traders were back to buying soyoil/selling meal once again, though weaker crude and lower .   In stories, the US Coast Guard announced on Wed. that it has closed the Mississippi River near Memphis, Tenn., due to a crack near the...