Fig. 1

Virulence of strains of F. oxysporum f. sp. apii and f. sp. coriandrii on celery and coriander. a-p Two-month-old celery cultivars were transplanted into uninfested soil (mock) or soil infested with either F. oxysporum f. sp. apii (Foa) race 2 (FoaR2), Foa race 3 (FoaR3), Foa race 4 (FoaR4), or the F. oxysporum f. sp. coriandrii strains Foci3–2 and FociGL306. (A-L) After 49 days, the median plant (n = 20) in height was photographed. (M-R) Kaplan-Meier plots of time to above-ground symptoms (left) and death (right) of the celery plants shown in either the photographs (m-p) or on coriander cv. Longstanding (q-r); coriander was direct-seeded. Treatments with 0% affected during the entire trial are not shown. Additional results from the same trial are shown in Additional file 3. For both days to symptoms and days to death, for each cultivar, P < 0.001 for the Log-Rank and Wilcoxon tests