Anheuser-Busch , the largest U.S. Beer brewer and the No. 1 buyer of Rice in the United States said it would not purchase rice grown in Missouri if it were Genetically Modified . This decision was prompted by a Ventria Bioscience plan to grow 200 acres (800,000 m&2) of genetically engineered rice in Missouri. [http://news.yahoo.com/news?tmpl=story&u=/ap/20050412/ap_on_bi_ge/beer_genetic_crops_1 (AP)]