Grain prices moved higher Monday as dry weather scorched the southwestern Plains states in the U.S. and as the conflict in Ukraine escalated.
Wheat for July delivery rose 13 cents to $7.29 a bushel, the highest price in a year.
Wheat has been rising sharply since the beginning of 2014. It has increased 31 percent since hitting a recent low of $5.51 a bushel on Jan. 29.
Corn prices also rose. The July contract rose 9 cents to $5.08 a bushel.
Todd Hultman, a grain analyst with DTN in Omaha, Nebraska, said the drought in the southwestern Plains states was pushing wheat prices higher.
"The drought situation is extremely serious," Hultman said.
A flare-up of tensions in Odessa over the weekend also threatened to jeopardize Ukraine's sizable corn and wheat exports from the Black Sea.
Ukraine is the world's No. 3 exporter of corn behind the U.S. and Brazil, Hultman said, making up about 16 percent of world exports of the grain.