| Code | Definition | Number of Accessions |
| 1 | 1= [absent or very weak], 2= [medium], 3= [strong], 4= [very strong] | 8 |
| 2 | 1= [absent or very weak], 2= [medium], 3= [strong], 4= [very strong] | 2 |
| 3 | 1= [absent or very weak], 2= [medium], 3= [strong], 4= [very strong] | 7 |
| 4 | 1= [absent or very weak], 2= [medium], 3= [strong], 4= [very strong] | 2 |