Evaluation location: Idaho, United States
Study Name: Resistance to Verticillium Wilt. Experiment Type: Field FIELD Study Year: 1984 Year started: 09/01/1984 Year ended: 01/12/1985. Seedlings were transplanted into Verticillium dahliae infested soil (470 colony forming units/g soil mix). Criteria to assess resistance were 1) time of appearance of symptoms, 2) fraction of individuals showing symptoms and severity of symptoms, and 3) fraction of individuals with stems colonized by Verticillium dahliae. The accessions were given an index score (0-10) based on these criteria.