| Code | Definition | Number of Accessions |
| 1 | Slight root darkening, vigorous, healthy | 49 |
| 2 | (0 = Resistant, no response, healthy; 9 = Susceptible, dead plants) | 71 |
| 3 | Brown roots, slight stunting, very small lesions on stems or small water-soaked lesions at base of stem, browning of primary root | 75 |
| 4 | (0 = Resistant, no response, healthy; 9 = Susceptible, dead plants) | 115 |
| 5 | Brown roots, small lesions on stems, lower leaves wilted, stunted plants, partial girdling at stem base | 152 |
| 6 | (0 = Resistant, no response, healthy; 9 = Susceptible, dead plants) | 191 |
| 7 | Brown roots, large lesions on stems, girdling, whole plant wilted and stunted | 215 |
| 8 | (0 = Resistant, no response, healthy; 9 = Susceptible, dead plants) | 399 |
| 9 | Dead plants | 1630 |