| Code | Definition | Number of Accessions |
| 1 | very short <25,0 mm | 2 |
| 2 | very short to short 25,0-30,0 mm | 3 |
| 3 | short 30,1-35,0 mm | 18 |
| 4 | short to intermediate 35,1-40,0 mm | 27 |
| 5 | intermediate 40,1-45,0 mm | 25 |
| 6 | intermediate to long 45,1-50,0 mm | 13 |
| 7 | long 50,1-55,0 mm | 7 |
| 8 | long to very long 55,1-60,0 mm | 1 |