Researchers at Washington State University say they have found no additional sign of the genetically modified wheat discovered at one Oregon farm this spring.
The tests involved wheat varieties developed at Washington State, the University of Idaho and Oregon State University, plus varieties from Westbred/Monsanto and Limagrain Cereal Seeds.
WSU said this week that the time-consuming study included checking more than 20,000 individual plots.
WSU says the collaboration with the other universities and the commercial seed companies was unprecedented. It reflects the common goal of trying to determine if the genetically modified wheat discovered in Oregon was an isolated case or if the industry had a larger problem.
WSU says its study clearly suggests that the Oregon farm was an isolated case.