Wheat futures fell to a three-week low at the Chicago Board of Trade early on Tuesday due to long liquidation and outlook for much-need rainfall in dry aareas of Russia, traders said Corn and soyabeans also were weak amid seasonal harvest pressure but the declines were limited by a rebound in crude oil prices and a weak US dollar.
December wheat down 12-1/2 cents at $6.94 per bushel. December corn down 2-1/2 cents at $5.10-1/4 per bushel. November soyabeans down 1-3/4 cents at $11.26-3/4 a bushel.