Celery fusarium yellows resistance

Resistance estimated on a scale from 1 to 5: 1, no discoloration in the vascular crown or primary roots, healthy plants; 2, slight discoloration in the crown and no discoloration in the primary roots, normal plant growth; 3, medium to severe discoloration in the entire crown and many of the primary roots, retarded plant growth; 4, rot in the crown and primary roots, small yellow plants; 5, dead plants. Plants rated 1 or 2 were considered to be resistant, and those rated 3, 4, or 5 were considered to be susceptible.