This collection is the largest data set with the most comparisons of various company varieties (Roundup Ready, LibertyLink and non-GMO) for North Dakota and western Minnesota. Because the data are averaged across four locations with four replications per location, the data are quite reliable in helping growers select the best varieties for their IDC-prone fields. These data enable growers to increase their yield on IDC-prone fields because varieties with the least amount of yellow IDC symptoms will yield the best for fields that have that problem.