Work on the variety trial program and the annual list of SCN-resistant soybean varieties is supported by soybean checkoff funds provided by the Iowa Soybean Association. One study found that yield of 67 different varieties with SCN resistance from PI 88788 yielded, on average, 22 bushel per acre less than varieties with Peking SCN resistance. The coalition works with industry to educate farmers and those who advise them about emerging management strategies such as transgenic SCN resistance and new seed treatments. One of those is a new type of SCN resistance being developed by BASF. Knowing if they are growing resistant varieties with Peking SCN resistance or PI 88788 resistance or some of each.