understanding seed quality terminology

Seed quality characteristic


Genetic purity

First generation seed only. Inspection by trained production specialists to ensure crop isolation and hygiene. Management by professional seed growers under contract.

Minimum germination


Minimum seed purity


Freedom from other seeds

Maximum tolerance 0.1% other seeds. Guaranteed tested free of noxious weeds seeds, including wild radish.

Herbicide tolerance 

Field screening of all seed lots for tolerance to registered herbicide in selected herbicide system such as Clearfield® or Roundup Ready®.

Adventitious presence

Laboratory bioassays and field screening of all parent seed and seed lots to detect any contamination or off-typ


Greater than 90%. 

Seed size

 All seed lots conditioned and graded through sieves and on gravity table to meet minimum requirement and uniformity