Evaluation location: Idaho, United States
Study Name: Resistance to Early Blight. Experiment Type: Greenhouse GREENHOUSE Study Year: 1986 Year started: 09/09/1986 Year ended: 03/10/1987. Plants were inoculated by spraying them with Alternaria solani inoculum three times at two week intervals. A disease index (0-5) was calculated by multiplying the fraction of individuals with symptoms times the average severity of symptoms.