A new hybrid popcorn variety, Iowa 4258, is being introduced in Iowa. Tests to date indicate some superiortiy to Iopop 6 and that the new hybrid can be grown wherever Iopop 6 can be grown sucessfully.
Thomas, W. I. and Eldredge, John C.
"Introduce New Hybrid Popcorn,"
Iowa Farm Science: Vol. 13
, Article 6.
Available at: https://lib.dr.iastate.edu/farmscience/vol13/iss9/6