Section II PROTOCOL FOR RESISTANCE TESTING

United Kingdom

1. 1Division 1
2. 2Division 2
3. 3Division 3
4. 4Division 4
5. 5Division 5
6. 6The following standard populations of potato cyst nematodes shall be used against pathotypes Ro1, Ro5, Pa1 and Pa3:
7. 7Division 7
8. 8Division 8
9. 9Division 9
10. 10Division 10
11. 11Division 11
12. 12Division 12
13. 13Division 13
14. 14Division 14
15. 15Division 15
16. 16The relative susceptibility of the tested potato variety to the standard susceptible control variety shall be determined and expressed as a percentage according to the formula:
17. 17Division 17
18. 18Division 18
19. 19Division 19