Northwest and Allee Research and Demonstration Farm
This study was done to evaluate the potential leaf burn (phytotoxicity) of two fungicides on 32 commonly grown soybean varieties. These 32 varieties represented diverse genetic backgrounds and ranged in maturity from late maturity group (MG) 0 to late MG II. Most of the varieties were in the late MG I to early MG II maturity range and would be commonly grown in northern Iowa.
Iowa State University
Kassel, Paul C., "Soybean Fungicide Phytotoxicity Study, Northwest Research Farm" (2006). Iowa State Research Farm Progress Reports. 1133.