| Code | Definition | Number of Accessions |
| 2 | very short - short 3,0- 4,5 cm | 17 |
| 3 | short 4,6- 6,0 cm | 310 |
| 4 | short - medium 6,1- 7,5 cm | 900 |
| 5 | medium 7,6- 9,0 cm | 1893 |
| 6 | medium - long 9,1-10,5 cm | 1127 |
| 7 | long 10,6-12,0 cm | 176 |
| 8 | long - very long 12,1-13,5 cm | 30 |
| 9 | very long >13,5 cm | 7 |