The following information is a Web Extra from the pages of Farm Journal. It corresponds with the article "A Global Strategy" You can find the article in the 2014 Summer Seed Guide issue.
The U.S. imported corn seed from 19 countries in calendar year 2013, up two from the prior year. But 75% came from just two countries, Chile and Argentina, and 77% came from winter production in South America overall. Still, roughly 90% of U.S. corn seed is grown in the U.S., although it changes year to year largely based on U.S. growing conditions.
Country of origin for corn seed imported into the U.S.
Source: U.S. Census Bureau data compiled by USDA’s Foreign Agriculture Service.