SCHEDULE 4Grading of seed potatoes
PART 3Seed potatoes capable of being marketed as certified seed potatoes
In the course of making a determination for the purposes of paragraph 1(b) of Schedule 1, where an authorised officer determines that seed potatoes are capable of being marketed as certified seed potatoes, that officer may grade them as seed potatoes of any of the grades specified in column 1 of Table 3 where that officer is satisfied following inspection that the requirements specified in column 2 in relation to that grade have been met and that the tolerances specified in column 3 have not been exceeded in respect of those seed potatoes.
Column 1 | Column2 | Column3 |
|---|---|---|
F1GB grade | Requirements | Tolerances |
A | The seed potatoes must be produced— | |
(a) directly from pre-basic seed potatoes, basic seed potatoes or certified seed potatoes that have been graded F2GB grade A or equivalent grade field generation eight; or | (i) Potato viruses Y, A and leaf roll either individually or in combination – 2.0% | |
(b) from a crop grown with the authority of or in circumstances notified in writing by the Welsh Ministers as being acceptable to the Welsh Ministers. | (ii) Other viruses - 2.0% | |
(iii) Combination of potato viruses Y, A and leaf roll and other viruses - 2.0% | ||
(iv) Blackleg - 2.0% | ||
(v) Deviations from variety and type or different variety, including groundkeepers -0.2% | ||
B | The seed potatoes must be produced— | |
(a) directly from pre-basic seed potatoes, basic seed potatoes, certified seed potatoes that have been graded F2GB grade A or equivalent grade field generation eight or certified seed potatoes that have been graded F3GB grade B or equivalent grade field generation eight; or | (i) Potato viruses Y, A and leaf roll either individually or in combination - 6.0% | |
(b) from a crop grown with the authority of or in circumstances notified in writing by the Welsh Ministers as being acceptable to the Welsh Ministers. | (ii) Other viruses - 6.0% | |
(iii) Combination of potato viruses Y, A and leaf roll and other viruses - 6.0% | ||
(iv) Blackleg - 4.0% | ||
(v) Deviations from variety and type or different variety, including groundkeepers -0.5% | ||