Susceptible check Straight Eight. Resistant check WI 1589 from Dr. C. E. Peterson. Resistant and susceptible checks are sown in row 6. The flats are placed on a heated germination bench. Newspaper on top of the flat prevents cooling by evaporation.
Newspaper is removed when seeds germinate.
Plants are rated as susceptible or resistant 5-7 days after inoculation. Susceptible plants wilt at point of inoculation. The wilt progresses along the stem. Resistant plants do not wilt. Susceptible plants die.