Syngenta says it has received regulatory approval to sell its quadruple-stacked corn seed in Argentina. The Agrisure Viptera 4 seed adds Syngenta’s MIR604 corn rootworm trait to its triple-stack corn seed, approved last November, that includes the Bt11, MIR162, and GA21 traits that collectively confer herbicide tolerance and above-ground insect control. The triple-stack trait will be available to Argentine growers in the 2012/2013 season, but the company did not specify when the quadruple-stack trait will be commercially...
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