SOCR 201 - Seed Development and Metabolism

  • 1 credit
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This seed development and metabolism course introduces students to the basic concepts of seed physiology. An understanding of the processes which occur during seed development, maturation, storage and germination is needed to clarify why certain procedures are used for seed germination, why some seeds do not respond to procedures used, and to help analysts explain to customers why their seed is of low quality. Seed composition is a critical factor in how well seed stores or germinates. Stage of seed development and maturity will also influence seed storability, germination and growth.

This course is beneficial for individuals interested in learning about seeds and for those who are studying to become registered seed technologists or certified seed analysts. Individuals registered or certified by the Society of Commercial Seed Technicians or by the Association of Official Seed Analysts are in demand by seed companies and by state and federal seed laboratories.

This course has print-based exams that require a proctor. Exams may be taken at the University Testing Center at Colorado State University, or at an accredited College or University Testing Center in your area. To request to take your exam at an accredited testing site in your area, please submit a Proctor Identification Form at least two weeks prior to the first exam in the course.


BZ 104 (Basic Concepts of Plant Life) or BZ 110 (Principles of Animal Biology) or BZ 120 (Principles of Plant Biology) or HORT 100 (Horticulture Science) or LIFE 102 (Attributes of Living Systems) or SOCR 100 (General Crops).

Important Information

The online verson of this course must be completed within six months of registration. No extension is available.

Textbooks and Materials

Textbooks and materials can be purchased at the CSU Bookstore unless otherwise indicated.


  • Principles of Seed Science and Technology, 4th Ed. (2001)
    Copeland and McDonald
    ISBN: 978-0792373223


Loren Wiesner

(970) 391-9223 |

Loren E. Wiesner earned his Ph.D. from Oregon State University in 1971. Since that time, he has conducted research in seed physiology on cereals and forage legumes and grasses, developed techniques for establishment of dormant species, and studied the effects of environment on seed dormancy, and the relationship of seed vigor to field establishment of grasses.

Dr. Wiesner has taught courses in seed production and conditioning, and forage crops and seed physiology at Montana State University. He has authored and co-authored more than 67 publications . He has also served as editor of the Journal of Seed Technology and technical editor for Crop Science.

Roger Levy