| Code | Definition | Number of Accessions |
| 0 | No rating possible | 62 |
| 1 | Very insensitive, headed out, seed produced | 422 |
| 2 | Insensitive, very late maturity, seed produced | 93 |
| 3 | Less sensitive, several heads but limited seed produced | 178 |
| 4 | Sensitive, few heads, no seed production | 166 |
| 5 | Very sensitive, totally vegetative | 612 |