| Code | Definition | Number of Accessions |
| 1 | very few tillers | 84 |
| 2 | (1= very few tillers, 9= very numerous tillers) | 112 |
| 3 | (1= very few tillers, 9= very numerous tillers) | 320 |
| 4 | (1= very few tillers, 9= very numerous tillers) | 307 |
| 5 | (1= very few tillers, 9= very numerous tillers) | 361 |
| 6 | (1= very few tillers, 9= very numerous tillers) | 327 |
| 7 | (1= very few tillers, 9= very numerous tillers) | 328 |
| 8 | (1= very few tillers, 9= very numerous tillers) | 124 |
| 9 | very numerous tillers | 62 |