Dockworker strikes in South America and official long-term weather guesses made for mixed results in the commodity markets. For the week, July wheat gained 20 cents and, after several volatile sessions, the nearby corn contract lost 4 cents. Bears trampled last week’s gains in the soy complex as the July contract clawed its way back to close 3 cents lower. July meal dropped $5 per ton. December cotton compressed $3.13 per hundred weight. Over in the dairy parlor, July Class III milk futures spilled 17 cents.