UPDATE 3-U.S. groups urge Syngenta to hold back on GM corn barred by China
January 23, 2014 at 17:59 PM EST
WASHINGTON/CHICAGO, Jan 23 (Reuters) - Two leading U.S. grain groups have asked Syngenta AG, the world's largest crop chemicals company, to suspend the commercial use in the United States of two genetically modified (GM) strains of corn not currently approved in China.
