Two individuals viewing seed conditioning equipment

Training Opportunities at the Seed Science Center

For more than 100 years, the Seed Lab and the Seed Science Center at Iowa State University have provided training for seed industry professionals by hosting short courses and workshops.  Each April through August Seed Conditioning Specialist Alan Gaul and Seed Lab Manager Mike Stahr facilitate workshops covering topics ranging from seed testing and cleaning, to gravity separation, color sorting, and seed treatment. 

Regularly scheduled courses in seed conditioning and seed analysis, as well as periodic workshops in testing for genetic traits and seed health are available.

Seed Conditioning Workshops:

Seed Analyst Short Course:

2022 Seed Analyst Short Course

Three individual workshops:

  • Beginner Purity             April 18-21, 2022          Purity exam April 22 (?)
  • Germination                  April 25-28, 2022          Germination exam April 29
  • Advanced Purity           May 2-5, 2022               Purity exam May 6 (?)


Please contact Mike Stahr for additional information –

NOTE ABOUT AOSA & SCST CONSOLIDATED EXAMS: You MUST qualify to take either or both exams.  This is done by contacting the AOSA SCST Executive Director (information available at


Germination Testing Week

Date: April 25-28, 2022

Agenda:  During Germination week, participants gain experience evaluating seedlings of 16 species (crops, vegetables, flowers grasses, etc.) using the warm germination test, plus working with the cold test, accelerated aging test, tests for biotech traits (herbicide bioassay, immunoassay), tetrazolium and more. A popular and unique highlight of the week is a three-hour session of moving between stations for hands-on work in the Germination lab.

Purity Testing Weeks

Dates: Beginner April 18-21, 2022; Advanced May 2-5, 2022

Agenda:  The emphasis of the Purity workshops is to provide “how to” information on seed identification by printed and electronic materials to be taken home, working with samples, advice from instructors, and use of electronic and hard copy references. Participants will have the opportunity to work with a variety of species of seeds: grasses, legumes, cereals plus weed species present in some of the samples. Hands-on activities also include using seed blowers, mechanical dividers, seed counters and a moisture meter. Lectures will be interactive and will include the AOSA Rules for Testing Seeds, uniform blowing procedure, multiple unit procedure, tolerances, varietal purity, sampling and coated unit procedures. 

Society of Commercial Seed Technologists (SCST) Super Workshop


Seed Science, 2115 Osborn Drive, Iowa State University, Ames, Iowa

Tentative Dates: February 7-11, 2022.  CGT/RGT Exam: February 7

Organized by the SCST Genetic Technology Committee

The Society of Commercial Seed Technologists Genetic Testing Super Workshop is held every other year and is the equivalent of five individual workshops in one week. The workshop is targeted towards those preparing to take the Genetic Technologist exams (RGT, CGT), individuals looking for a refresher course, and those beginning in this field. Workshops include lecture, hands-on activities, and materials to take home. Time will also be spent discussing preparing for the exams, genetic testing issues, new technology, training resources, and sources of information for testing products. 


  • Molecular Biology
  • Herbicide Bioassay
  • Immunoassay (ELISA, Lateral Flow Strips)
  • Electrophoresis
  • PCR

Graduate Program in Seed Technology and Business Short Courses & Webinars

Seed Science & Technology webinar series: October 24 - 29th, 2021 

Seed Business Management webinar series: TBD spring 2022