Purpose:
- To maintain and make available to the public high-quality seeds and propagating materials of genetically distinct crop varieties.
Certification Involves:
- Certified seed produced by elite growers and seedsmen
- Careful quality control system
- Pedigreed planting stock
- Field inspection(s) during the growing season
- Seed inspection(s) following harvest
- Ascertains varietal purity
History
- Began in U.S. and Canada during the early 1900's
- Lead to formation of crop improvement associations and certification agencies
- Provided impetus for release of high quality public varieties
Present status
- Each state has a certification agency
- Administered by Dept. Agric. or Ext. Service in the U.S.
- Administered by Canadian Seed Growers Assoc. in Canada
Association of Official Certifying Agencies (AOSCA)
- Umbrella organization in U.S., Canada and several other countries
- Functions:
1. Establish minimum certification standards
2. Standardize certification regulations and procedures
3. Encourage cooperation between interested agencies
4. Assist member agencies in promotion, production and distribution
Generation scheme
- Breeder
- Produced under the supervision of the plant breeder
- Represents the true pedigree of the variety
- Foundation
- Produced by the seedstocks personnel of the parent organization
- Has a white seed tag
- Registered
- Produced from Foundation seed and intended for production of Certified class seed
- Has a purple seed tag
- Certified
- Produced from Registered or Foundation grade seed
- Is considered as the commercial class
- Has a blue seed tag
Canadian system
- Differs from the U.S. system as follows:
1) Breeder seed is sold to seedsmen,
2) Has a Select class between Breeder and Foundation classes
Requirements for Eligibility as a Variety
Varietal Release
- A standard procedure must be followed whether public or private
Variety Description
- The variety must be properly released, named and described
- Varietal definitions are available to all interested organizations
Varietal Review Boards
- Consist of representatives from six interested agencies
- Operate under AOSCA
- Review required for certification eligibility
Certification procedures
Planting stock
- Must be from Registered, Foundation or Breeder seed
Application
- Must be submitted to appropriate agency accompanied by one or more seed tags
Field Inspections
- Are conducted in the field when off-types and other crops can be identified
- Timing of inspection(s) will depend upon the crop
Harvesting
- Special care must be given to maintain purity and high seed quality
Conditioning
- Purity must meet the standards for the seed class
- Care must be taken to maintain seed quality
- Crop kind and purity standards will determine the machine utilization
Sampling
- Samples should be taken on a regular interval and be representative of the lot
- Samples may be taken during conditioning or in storage after conditioning
Seed Inspection
- Must be certified for purity, germination and weed seeds
- Phytosanitary certificate may be required for interstate or international transport
- Sampling may be conducted by seed regulatory agency
Seed Tagging
- May be a one-tag or two-tag system
- A Bulk Certificate may be used for seed delivered in bulk condition
Marketing
- May be done by the grower, a processor, seedhouse, etc.
Interagency Certification
- Involves cooperation of two or more certification agencies
- Required when seed is produced out of the agency's jurisdiction
Organization for Economic Cooperation and Development (OECD)
- A seed scheme for international marketing of certified seed
- Members include European, Japanese and North American countries
- U.S. Agric. Research Service is the official agency representing the U.S.A.
Recent additions to certification services
Certification on Varietal Purity Only (CVPO)
- Varietal purity is only criterion for certification
- Does not apply in ND
Certification of Blends
- All components of the blend must represent certified seed
- Proportions must be specified, predetermined and commercially acceptable
- The consumer is not appraised of the composition of the blend
- Does not apply in ND
Sod Certification
- Certification is usually for purity, composition and freedom from diseases and insects
Tree Seed Certification
- Certification may apply to the seed purity and quality or origin of the seed
- Origin of seed assures adaptability to environments
Phytosanitary Certification
- Certifies only that the field was free of specific diseases
- Certification is normally conducted by state dept. agric.
Quality Assurance
- Provides a uniform and unbiased quality control system for private companies
- Typically involves field inspections to assure purity