Upcoming Events
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16.11.2026 - 16.11.2026
X-ray Testing of Forest Seeds: From Principles to Practice and Standardisation
This webinar is organised by members of the Forest Tree and Shrub Seeds Committee and will explore the historical use of X-ray testing in forest seed testing, its advantages and disadvantages, and the experiences of two laboratories in the United States and Poland. It will also discuss how clients use the results and provide an overview of Chapter 14 of the ISTA Rules.Read more -
9.12.2026 - 9.12.2026
The changing landscape of seed health testing - a story of the ISTA Reference Pest List and other ISTA contributions
Register via the external website link below:Read more -
14.12.2026 - 14.12.2026
The Science and Practice of Seed Priming: Molecular Insights and Challenges in Seed Testing
The webinar aims aims to provide participants with insights into the molecular mechanisms underlying seed priming, its effects on seed germination, performance and storability, and the challenges it may present for seed quality assessment. It will also explore the practical interpretation and application of the ISTA Rules when testing treated, coated, pelleted and primed seeds, with particular attention to purity analysis, Other Seed Determination (OSD) and germination testing. By combining scientific knowledge with practical guidance, the webinar aims to support accurate seed testing, reliable interpretation of results and a better understanding of the implications of seed priming for seed quality evaluation.Read more
Participation is free and is open to everybody. Don’t miss this opportunity to engage with leaders in the field!
Click on the link below to register.
News
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18.09.2026
The ISTA Reference PEST List v16.0 has been officially released! This latest version includes five species from the Apiaceae family: celery, coriander, dill, parsley and parsnip. Additionally, the Scientific names of the pests, the No evidence list, and the Saprophytes have been updated. Finally, 11 new pests have been added to the alfalfa list.
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12.10.2026
The new issue of Seed Testing International (No. 172) is out now! Discover the latest association news and insightful articles, available to everyone as open access.
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01.12.2025
The latest Handbook on Tetrazolium Testing, 3rd Edition, 2025 has been released. Whether you are an experienced tetrazolium tester or looking to deepen your expertise, this handbook is an invaluable resource.
Buy Now
Publications
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The International Rules for Seed Testing (ISTA Rules) are ISTA primary tool to promote uniformity in the seed testing industry. Featuring 19 sections, the International Rules for Seed Testing have definitions and standardised methods to be used in sampling, testing seed lot quality and reporting results for international trade. The ISTA Rules are voted, amended and approved annually at the Ordinary General Meeting after considering the Technical Committees recommendations.
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Seed Science and Technology (SST) is an international journal, featuring original papers and articles on seed quality and physiology related to seed production, harvest, processing, sampling, storage, genetic conservation, habitat regeneration, distribution and testing. A journal that meets the needs of researchers, advisers and all those involved in the improvement and technical control of seed quality.
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Seed Testing International (STI) is the ISTA News Bulletin, distributed to over 1700 subscribers worldwide. STI includes reports from ISTA President, Technical Committees, and Secretariat. It also includes articles, addressing various aspects, concerning seed testing in general.
This is the reason why STI is read by parties, interested in seeds, including ISTA Members and their laboratory personnel in more than 70 countries/distinct economies.
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