13.—(1) In these Regulations, in relation to black mustard, brown mustard, flax, hemp, linseed, soya bean, sunflower, swede rape, turnip rape and white mustard, other than a hybrid, “basic seed” means seed that —
(a)has been produced by or under the responsibility of the breeder according to accepted practices for the maintenance of the variety, and
(b)is intended to be used for the production of —
(i)in the case of black mustard, brown mustard, dioecious hemp, sunflower, swede rape, turnip rape and white mustard, CS seed;
(ii)in the case of flax, linseed, monoecious hemp and soya bean, C1 seed;
(iii)in the case of flax, linseed, monoecious hemp and soya bean, C2 seed; or
(iv)in the case of flax, C3 seed.
(2) In these Regulations, in relation to a component of a hybrid variety, or an inbred line that is a component of a hybrid variety, “basic seed” means seed that is intended to be used for the production of CS seed of a hybrid variety.
(3) In these Regulations, in relation to a simple hybrid that is a component of a hybrid variety, “basic seed” means seed that is intended to be used for the production of CS seed of a double or three way cross hybrid variety.