Evaluation location: Illinois, United States
Evaluations were conducted once for each race in a greenhouse. One seed of each accessions was planted in each of three pots in soil infested with either race 3 or race 4 of soybean cyst nematode (SCN), Heterodera glycines. After the completion of the first generation in approximately one month, numbers of females on roots were determined and a resistance score was assigned based on a scale of 0 - 4 where 0 = no females, 1 = 1 - 4 females, 2 = 6 - 10 females, 3 = 11 - 30 females, and 4 = > 30 females per root system. If the resistance score is either 0 or 1, an accession is considered highly resistant and is moderately resistant if the score is 2.