One of the nation’s largest grain marketers has thrown a curve to grainelevators on the eve of the fall harvest. Archer Daniels Midland officialsare warning grain suppliers to segregate genetically-modified crops fromconventional corn and beans. Jim Penny, general manager of the Heart ofIowa Co-op in Nevada (nuh-VAY’-duh), says separating grain that’sgenetically-modified is a huge request. Penny says much of the 1998 harvestremains in Iowa grain elevator storage — and it’s not segregated.Penny says during harvest season, thousands of bushels of grain are hauledto elevators each day — and there’s no time to conduct tests to determinewhich grain is what. Penny’s Heart of Iowa Co-Op receives up to250-thousand bushel of grain a day during the height of harvest.