Fehr, WalterClark, Robert2021-04-302021-04-301969-11-01https://dr.lib.iastate.edu/handle/20.500.12876/104975<p>Wirth, a new soybean variety released by the Iowa State University- U.S. Department of Agriculture soybean breeding program, has outyielded current varieties of similar maturity in northern tests. This article discusses its development, performance, adaptation and distribution.</p>articleisulib-bepress-aws-west305122035763farmscience/vol24/iss5/3Agriculture