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Welcome to the new AnalyzeSeeds Site!


The Association of Official Seed Analyst (AOSA) is an organization of member laboratories dedicated to education and research, including state, federal, and university laboratories from the United States and Canada. AOSA formally organized in Washington D.C. in 1908, developing rules and procedures for seed testing and the standardization of their interpretation (in conjunction with the Federal Seed Act) Contact: aosa@aosaseed.com


The Society of Commercial Seed Technologists (SCST) is an organization of professional seed technologists dedicated to research, proficiency and improvement in seed testing from private, and company laboratories across the United States and Canada. SCST originated in 1922, largely as a liaison between The Association of Official Seed Analysts (AOSA) and The American Seed Trade Association (ASTA). Contact: scst@seedtechnology.net


Welcome to the new analyzeseeds home

What We’re Offering



The AOSA and SCST publications are available through our website store. You are now able to purchase publications such as: AOSA Rules for Testing Seeds, AOSA Seed Moisture Testing Handbook, AOSA Seed Vigor Testing Handbook, AOSA Tetrazolium Testing Handbook, SCST Seed Technologist Training Manuals, and many others!

Exams & Certifications

Resources for Students and Professionals

SCST: In 1947, the Registered Seed Technologist exam was established. This exam needed a minimum score of 80% to pass

SCST: In 2001, the Registered Genetic Technologist examination was established

AOSA: Analyst certification program for purity and/or germination


Past Presidents of the AOSA & SCST