Grains mostly lower in Chicago CHICAGO, April 4 (UPI) -- Grain futures were mostly lower Wednesday with the dollar index up 0.44 percent on the International Exchange. Corn was off 1 1/4 to off 3 3/4, soybeans were off 1/4 to up 3 1/4, wheat was off 18 3/4 to off 19 3/4 and oats were off 1 to off 2 1/2. Corn futures dropped slightly with prices supported by South Korea's purchase of 59,000 metric tons. Wheat prices consolidated with rain forecast for parts of Europe that have been dry, including Spain which just completed the driest winter in 65 years. Soybean futures managed gains with Taiwan tendering for up to 60,000 metric tons and Brazil's crop facing downgrades. Corn: May 6.56 3/4 off 1 1/2, Jly 6.50 3/4 off 2 1/4, Sep 5.64 3/4 off 3 3/4, Dec 5.44 1/4 off 1 1/4. Soybeans: May 14.19 1/2 up 2 3/4, Jly 14.23 3/4 up 2 1/2, Aug 14.16 3/4 up 3 1/4, Sep 13.92 3/4 off 1/4. Wheat: May 6.39 1/4 off 18 3/4, Jly 6.49 3/4 off 19 1/4, Sep 6.63 3/4 off 19 3/4, Dec 6.85 1/2 off 19 1/2. Oats: May 3.35 off 1, Jly 3.33 1/4 off 2 1/2, Sep 3.33 1/4 off 1 3/4, Dec 3.39 off 2.