| Code | Definition | Number of Accessions |
| 2 | 1% to 3% of root system galled | 4 |
| 3 | 4% to 10% of root system galled | 13 |
| 4 | 11% to 25% of root system galled | 33 |
| 5 | 26% to 35% of root system galled | 201 |
| 6 | 36% to 50% of root system galled | 201 |
| 7 | 51% to 65% of root system galled | 150 |
| 8 | 66% to 80% of root system galled | 168 |
| 9 | 81% to 100% of root system galled | 118 |