| Code | Definition | Number of Accessions |
| 3 | low 170,1-190,0 (g.kg-1) | 1 |
| 4 | low to medium 190,1-210,0 (g.kg-1) | 4 |
| 5 | medium 210,1-230,0 (g.kg-1) | 5 |
| 6 | medium to high 230,1-250,0 (g.kg-1) | 8 |
| 7 | high 250,1-270,0 (g.kg-1) | 4 |
| 8 | high to very high 270,1-290,0 (g.kg-1) | 1 |
| 9 | very high >290,0 (g.kg-1) | 1 |