Beginning in the fall of 1957, Iowa State College oat variety recommendations will be made on the basis of four state areas. Who determined the areas? Why, none other than the oat varieties themselves.
Frey, K. J. and Horner, T. W.
"New Area Recommendations For Oats,"
Iowa Farm Science: Vol. 11
, Article 2.
Available at: https://lib.dr.iastate.edu/farmscience/vol11/iss11/2