Resources

AOSCA Grass Variety Fluorescence Levels Master Calibration Samples Seed Testing Research Foundation Guide for Interpreting Report of AnalysisSeedling Image DatabaseWebinarsPractice Questions & TestsHistorical Documents

Rules Proposals & Changes

2025 AOSA Rule Changes
2025 AOSA Rule Change Proposals
2024 AOSA Rule Changes
2024 AOSA Rule Change Proposals
2023 AOSA Rule Changes
2023 AOSA Rule Change Proposals
2022 AOSA Rule Changes
2022 AOSA Rule Change Proposals
2020/2021 AOSA Rule Change Proposals
2019 Rule Change Proposals
2019 AOSA Rule Proposals
2018/2019 Rule Changes
2018 AOSA Rule Proposals
2016 AOSA Rule Changes

Training & Education

Transgenic Traits Herbicide Bioassay
Canadian Weed Seeds Order 2016 & Idseed.ca
AOSA & SCST Consolidation Proposal
Grass Seed Structures & ID of Lolium & Festuca Species
Seed ID from the American Seed Trade Association (ASTA) Uniformity Study (2020)
Identifying Select Brassica & Setaria Species
PCR Master Mix Calculation
How to Conduct Successful Research for Rules Proposals, Referees, and Scientific Studies
IEF Gel Testing for Kentucky 31 Tall Fescue Variety by Esterase Enzyme
AOSA Rules for Testing Seeds Vol 2. Uniform Blowing Procedure
Organization Merger Update
USDA Accredited Seed Laboratory Program
Seed Identification from the Uniformity Study
Little Yellow Seeds in the Brassicaceae
Germination: Seedling Evaluation
Building Virtual Reference for Seed ID
Basics of TZ Testing
Uniform Classification of Weed and Crop Seeds
Practical Considerations of Commercial Seed Storage
Seed Vigor related to Seed Production and Processing
Report of Analysis Proficiency Test
ASTA/AASCO Uniformity Study
Review of the Proposed United Seed Testing Organization (USTO) Models
Pure Seed Unit Descriptions and Botanical Terms
Introduction to Bromegrass
How to Study For The Examinations
All State Noxious Weed Seed List
AOSA Rule on Mixture Containing Coated & Non-Coated Seed
Labeling Seed According to the Federal Seed Act
International Seed Morphology Association
Biomarker Testing
Seed Sampling & Characteristics of Seed Lots
Variability in Seed Testing
Seed Testing & Reporting Requirements for Importing Seed into Canada
On the Road to One – Consolidation Update
Questions About Membership?
Contact AOSA-SCST
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