Division (2) The conditions for basic seed potatoes of ‘Union grade SE’ shall be as follows:

conditions concerning seed potatoes:

1. (i)

   the number of plants not breeding true to the variety and the number of plants of a different variety shall, together, not exceed 0,1 %;

2. (ii)

   the number of growing plants affected by blackleg shall not exceed 0,5 %;

3. (iii)

   in the direct progeny the number of plants with symptoms of virus infection shall not exceed 2,0 %;

4. (iv)

   the number of growing plants with mosaic symptoms or symptoms caused by leaf roll virus shall not exceed 0,5 %;

5. (v)

   the number of generations, including pre-basic in the field and basic generations, shall be restricted to six;

6. (vi)

   if the generation is not indicated on the official label, the potatoes concerned shall be considered as belonging to the sixth generation;

tolerances applicable to lots, as regards the following impurities, blemishes and diseases:

1. (i)

   seed potatoes affected by rots, other than ring rot or brown rot, shall not exceed 0,5 % by mass, of which seed potatoes affected by wet rot shall not exceed 0,2 % by mass;

2. (ii)

   seed potatoes affected by black scurf over more than 10 % of their surface shall not exceed 5,0 % by mass;

3. (iii)

   seed potatoes affected by common scab over more than one third of their surface shall not exceed 5,0 % by mass;

4. (iv)

   seed potatoes affected by powdery scab over more than 10 % of their surface shall not exceed 3,0 % by mass;

5. (v)

   shrivelled tubers due to excessive dehydration or dehydration caused by silver scurf shall not exceed 1,0 % by mass;

6. (vi)

   seed potatoes with external blemishes, including misshapen or damaged tubers, shall not exceed 3,0 % by mass;

7. (vii)

   presence of earth and extraneous matter shall not exceed 1,0 % by mass;

8. (viii)

   the total percentage of seed potatoes covered by tolerances, as referred to in points (i) to (vi), shall not exceed 6,0 % by mass.