Certification South Africa
The certification scheme is based on a dual phasing-out system, which takes the generation and quality class into consideration.
Generation
The permissible disease content of seed potatoes increases with consecutive generations and the phasing-out is coupled to the generations. Seed potatoes may be multiplied for eight consecutive generations, after which they may not be registered in terms of the Scheme again.
Quality classes
Within each generation there is made provision for three classes which represent the quality of the seed potatoes in respect of tuber diseases:
- Elite
- Class 1
- Standard Grade
Seed potatoes which are certified as Elite and Class 1 of a specific generation may again be used for the production of seed potatoes of the following generation ( e.g. G1=>G2).
Seed potatoes which are certified as Class 1 may qualify for the Elite class of the following generation( e.g. G1=>G3).
Standard Grade seed cannot be registered for the further production of seed potatoes.
TOLERANCES FIELD INSPECTION----TOLERANCES QUALITY CLASSES