Corn futures at the Chicago Board of Trade climbed early Wednesday as uncertainty about crop weather and possible frost next week in the upper Midwest spurred buying, traders said.
Corn futures through July 2005 were 2-1/4 cents to 3-1/2 cents per bushel higher by 10:20 am CDT (1520 GMT). September was up 3-1/2 cents at $2.31-1/4, finding an extra lift from no futures deliveries on Wednesday.
New-crop December was up 3-1/4 cents at $2.41, pushing through nearby support pegged at $2.40.
Funds were covering short positions, with ADM Investor Services buying 1,500 December. Cargill Investor Services and Tenco each bought 500 December, traders said.