Distribution of Values for
Bulb skin thickness (Bulb skin thickness)
| Code | Definition | Number of Accessions |
| 1 | 1 - No skin | 1 |
| 2 | 2 - Little skin | 11 |
| 3 | 3 - Thin | 31 |
| 4 | 4 - Thin - medium | 28 |
| 5 | 5 - Medium | 28 |
| 6 | 6 - Medium - thick | 38 |
| 7 | 7 - Thick | 53 |
| 8 | 8 - Thick - very thick | 4 |
| 9 | 9 - Very thick | 1 |