Wheat gains on concern dry weather in Russia may curb supply
Wheat futures gained in Chicago on concern that dry weather in Russia, the world's second-largest exporter, and other producing countries in Europe and Central Asia may curb harvests, paring global supply.
Russia says it will ban grain exports for the rest of the year after a severe drought destroyed 20 percent of its wheat crop.Russia is among the world's largest exporters, and fears that it would cut exports had already helped drive up wheat prices by nearly 70 percent since early June.