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Plant Pest Diagnostics Center

Deborah Meyer

Deborah J. Lionakis Meyer

Environmental Program Manager I
(Nematology, Plant Pathology, Seed Science)

Plant Pest Diagnostics Branch, California Department of Food & Agriculture
3294 Meadowview Road, Sacramento, CA 95832-1448, U.S.A.
916-262-1137 office, 916-262-1190 fax, deborah.meyer@cdfa.ca.gov

 

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Curriculum vitae

Education

  • Master of Arts in Biological Sciences (Plant Taxonomy), California State University, Sacramento, May 1986 Thesis: Grasses of Placer County, California. Advisor: Dr. Michael Baad.
  • Bachelor of Arts in Biological Sciences (Plant Biology), California State University, Sacramento, January 1978. Advisor: Dr. Jeri Langham.

EMPLOYMENT RECORD

  • 2015–present Environmental Program Manager I, CDFA Plant Pest Diagnostics Branch
  • 2012–2015 Program Supervisor, CDFA Plant Pest Diagnostics Branch
  • 2004–2012 Senior Seed Botanist–Supervisor, CDFA Seed Laboratory
  • 2000–2004 Senior Seed Botanist, CDFA Seed Taxonomy Laboratory
  • 1984–2000 Associate Seed Botanist, CDFA Seed Taxonomy Laboratory
  • 1982–1984 Seed Botanist II, CDFA Seed Taxonomy Laboratory
  • 1980–1981 Agricultural Inspector I, CDFA Seed Physiology Laboratory and Botany Laboratory
  • 1978–1980 Agricultural Aid, CDFA Seed Physiology Laboratory and Botany Laboratory

AREAS OF SPECIALIZATION IN PRESENT POSITION

  • Program supervisor for three diagnostic laboratories, 8 scientific specialists, 8 environmental scientists, 4 technicians and several seasonal staff
  • Diagnostic responsibilities include:
    • Identification of seeds, fruits, and other plant propagules from all plant families on a worldwide basis.
    • Performs laboratory seed quality testing (primarily purity analyses, other species examinations, germination and viability testing).
    • Provides scientific consultation on seed identification and seed quality assessment.
    • Performs research and develops new diagnostic methods related to the specialized fields of seed taxonomy and seed quality assessment.
    • Serves as Quality Assurance Manager for the Seed Laboratory.

PROFESSIONAL CERTIFICATIONS

  • Registered Seed Technologist (RST), accredited by the Society of Commercial Seed Technologists, 1998.
  • Certified Seed Analyst in Purity and Germination Testing (CSA ‒ P&G), accredited by the Association of Official Seed Analysts, Inc., 20 June 1985.

PROFESSIONAL AFFILIATIONS

  • Registered Member of the Society of Commercial Seed Technologists (SCST) since 1998.
  • Affiliate Member of the Association of Official Seed Analysts (AOSA) since 1982.
  • Personal Member of International Seed Testing Association (ISTA) since 2013.

DISTINCTIONS

Honors

  • 2013 AOSA Award of Merit, presented by the Association of Official Seed Analysts in recognition of outstanding service and achievement on behalf of the Association.
  • 2004 Alumni Honors Recipient, presented by the California State University–Sacramento, Department of Biological Sciences in recognition of service to the community.
  • 1999 AOSA Award of Merit, presented by the Association of Official Seed Analysts in recognition of outstanding service and achievement on behalf of the Association.
  • 1998 Anna Lute Award, presented by the Front Range Seed Analysts Association in recognition of worthy contributions to the field of seed testing method development, and national reputation as an interested, enthusiastic, and professional seed scientist.

Offices Held

  • Executive Board Member, Association of Official Seed Analysts, Inc., 1990–1998 and 2015 - present.
  • Associate Editor, Seed Technology, 2001–present.
  • Executive Board Member, International Society of Seed Technologists, 2001–2003.
  • President, Association of Official Seed Analysts, Inc. (AOSA) 1994–1996. (AOSA is an international organization of government and university seed technologists and researchers from the United States and Canada who, in cooperation with the Society of Commercial Seed Technologists (SCST), strive to develop standardized methods to assess the quality of seed. The AOSA membership consists of 51 Official Laboratory Members, and 450+ Affiliate and Associate Members.)
  • Vice President, Association of Official Seed Analysts, Inc., 1992–1994.
  • Acting Vice President, Association of Official Seed Analysts, Inc., 1991–1992 (appointed by the AOSA Executive Board following resignation of Vice President).

Committee Assignments–current

  • Member, SCST Registered Seed Technologist Examination Board, 2001–present.
  • National Plant Board Representative, National Seed Health System–Policies and Procedures Advisory Board, 2000–present.
  • Chairperson, AOSA Purity Testing Subcommittee of the AOSA Research Committee, 1994–present.
  • Member, ISTA Purity Committee, 1995–present.
  • Member, SCST Teaching and Training Committee, 2015–present.

Committee Assignments–past

  • Chairperson, AOSA/SCST Rules Issues and Review Committee, 2006–2012.
  • Member, Community Advisory Council of the College of Natural Sciences and Mathematics, California State University, Sacramento, 2005–2015.
  • Chairperson, AOSA Rules Committee, 2001–2006.
  • Chairperson, AOSA Budget Committee 1992, 1994, 1995.
  • Chairperson, AOSA Annual Meeting Program Committee 1992, 1993, 1994.
  • Chairperson, Joint AOSA/SCST Referee–Research Committee, 1990–1994.
  • Chairperson, Southwest Region, Joint AOSA/SCST Referee–Research Committee, 1989–90.
  • Member, International Seed Testing Association (ISTA) Rules Committee, 2005–2006.
  • Member, AOSA/ISTA Seed Testing Harmonization Committee, 2002–2006.
  • Member, AOSA Laboratory Quality Assurance Committee, 1993–1995.
  • Member, AOSA Seed Testing Standardization and Research Funding Committee, 1990–1995, 2001–2006.
  • Member, AOSA Uniformity Subcommittee of the Seed Testing Standardization Committee, 1988–1993.
  • Member, AOSA Rules Committee, 1985–90.

PUBLICATIONS

  1. Meyer, D. J. L. and J. H. Wiersema (eds.). 2015. AOSA Rules for testing seeds: Vol. 3. Uniform classification of weed and crop seeds. Association of Official Seed Analysts, Inc., Washington, DC. 286 pp.
  2. Meyer, D. J. L., Z. Ripka, C. Sahuguede, R. Wang.2014. Universal List of Species. International Seed Testing Association. Freely available
  3. Meyer, D. J. L. and J. H. Wiersema (eds.). 2014. AOSA Rules for testing seeds: Vol. 3. Uniform classification of weed and crop seeds. Association of Official Seed Analysts, Inc., Washington, DC. 274 pp.
  4. Meyer, D. J. L. and J. H. Wiersema (eds.). 2013. AOSA Rules for testing seeds: Vol. 3. Uniform classification of weed and crop seeds. Association of Official Seed Analysts, Inc., Ithaca, NY. 274 pp.
  5. Anderson, M. K., J. Effenberger, D. Joley, and D. J. L. Meyer. 2012. Edible small seeds and grains of California tribes and the Klamath Tribe of Oregon in the Phoebe Apperson Hearst Museum of Anthropology (PAHMA) Collections, University of California Berkeley. United State Department of Agriculture, Natural Resources Conservation Service. Freely available.
  6. Meyer, D. J. L. and J. H. Wiersema (eds.). 2012. AOSA Rules for testing seeds: Vol. 3. Uniform classification of weed and crop seeds. Association of Official Seed Analysts, Inc., Ithaca, NY. 278 pp.
  7. Walters, D. 2012. Table grape weed disseminules of California’s Central Valley. A Lucid® diagnostic key. Cooperative project with CDFA and USDA-APHIS-PPQ-CPHST. (D. J. L. Meyer, R. Price, and J. Effenberger contributors to the project).
  8. Meyer, D. J. L. and J. H. Wiersema (eds.). 2011. AOSA Rules for testing seeds: Vol. 3. Uniform classification of weed and crop seeds. Association of Official Seed Analysts, Inc., Ithaca, NY. 278 pp.
  9. Meyer, D. J. L. and J. H. Wiersema (eds.). 2010. AOSA Rules for testing seeds: Vol. 3. Uniform classification of weed and crop seeds. Association of Official Seed Analysts, Inc., Ithaca, NY. 270 pp.
  10. Garay, A., S. G. Elias, and D. J. L. Meyer. 2009. Development of a uniform blowing procedure for grass seeds: principles, applications and benefits. Seed Testing International, No. 138, pp. 26-32.
  11. Meyer, D. J. L. and J. H. Wiersema (eds.). 2009. AOSA Rules for testing seeds: Vol. 3. Uniform classification of weed and crop seeds. Association of Official Seed Analysts, Inc., Ithaca, NY. 290 pp.
  12. M. Baad, K. Lazar, D. Meyer and J. Van Ess. 2007. Checklist of the Vascular Plants of Placer County, California. Freely available.
  13. Meyer, D. J. L. 2007. Momordica charantia L., bitter cucumber, bitter melon, bitter, gourd, balsam-pear, balsam-apple. Cover illustration. Seed Technology 29(1)
  14. Meyer, D. J. L. 2006. Peanut, Arachis hypogaea L., seedlings. Cover illustration. Seed Technology 28(1).
  15. Meyer, D. J. L. and J. H. Wiersema (eds.). 2006. Uniform classification of weed and crop seeds. Contribution No. 25 to the handbook on seed testing. Association of Official Seed Analysts, Inc., Las Cruces, NM. 291 p.
  16. Meyer, D. J. L. 2005. Seed development and structure in floral crops. In: McDonald, M. B. and F. Kwong (eds.). 2005. Flower seeds: biology and technology. CAB International Publishing, Oxfordshire, UK. p 117–144.
  17. Meyer, D. J. L 2005. Pepper, Capsicum annuum L., seedling. Cover illustration. Seed Technology 27(1).
  18. Meyer, D. J. L 2004. Carrot, Daucus carota L., fruit. Cover illustration. Seed Technology 26(1).
  19. Meyer, D. J. L, and J. Effenberger. 2004. Comparison of purity testing methods of weeping alkaligrass (Puccinellia distans (Jacq.) Parl.). Seed Technology 26(1):17–26.
  20. Meyer, D. J. L and J.H. Wiersema (eds.). 2001. Uniform classification of weed and crop seeds. Contribution No. 25 to the handbook on seed testing. Association of Official Seed Analysts, Inc., Las Cruces, NM. 266 p.
  21. Meyer, D. J. L 2001. Comparison of four purity testing methods for Festuca brevipila R. Tracey and F. ovina L. Seed Technology 23(1):35–49.
  22. Meyer, D. J. L Basic botany for seed testing. In: McDonald, M., Gutormson, T., and Turnipseed, B. (eds.). 2001. Seed Technologists Training Manual. Society of Commercial Seed Technologists, Ithaca, NY. Chapter 2, p 1–38.
  23. Meyer, D. J. L Seed identification. In: McDonald, M., Gutormson, T., and Turnipseed, B. (eds.). 2001. Seed Technologists Training Manual. Society of Commercial Seed Technologists, Ithaca, NY. Chapter 3, p 1–21.
  24. Meyer, D. J. L 2000. Comparison of two methods of purity testing for Festuca pratensis Hudson and Lolium x hybridum Haussknecht. Seed Technology 22(1):59–63.
  25. Meyer, D. J. L and J. H. Wiersema (eds.). 1999. Uniform classification of weed and crop seeds. Contribution No. 25 to the handbook on seed testing. Association of Official Seed Analysts, Inc., Lincoln, NE. 242 pp.
  26. Meyer, D. J. L 1998. Understanding grass family seed units. ISTA News Bulletin No. 116:32–41.
  27. Meyer, D. J. L 1998. Seed quality problems commonly encountered in the laboratory for vegetable and flower seeds. Seed Technology 20(2):136–161.
  28. Meyer, D. J. L 1997. Comparison of three methods of purity testing for Lolium multiflorum, L. perenne and Festuca arundinacea. Seed Technology 19(1):91–98.
  29. Meyer, D. J. L 1996. Understanding grass family seed units. AOSA News Letter 70(1): 49–59.
  30. Effenberger, J., B. Brown, D. L. Meyer and P. Peterson. 1990. Seed testing: The vegetable seed perspective. Journal of Seed Technology 14(2):138–140.
  31. Meyer, D. J. L 1987. Pictures and descriptions of certain Apiaceae (Umbelliferae) fruit not illustrated in U.S. Department of Agriculture Handbook No. 30. Journal of Seed Technology 11(1):35–41.
  32. Effenberger, J. M. and D. J. L. Meyer. 1986. Taxonomic characteristics of some noxious weed propagules of the Poaceae in California. Official Proceedings of the 34th Annual Meeting of the American Association of Feed Microscopists, p 22–25.
  33. Meyer, D. J. L 1986. Grasses of Placer County, California. Master's Thesis, California State University, Sacramento. 201 p.

WORK IN PROGRESS

  1. Meyer, D. J. L. 2016. Seed purity testing handbook: in accordance with the AOSA Rules for Testing Seeds. Association of Official Seed Analysts.

SPECIAL REPORTS AND PRESENTATIONS

  • Meyer, D. J. L. 2015. Seed Testing.  Seed Biology, Production and Quality Course. UC Davis Seed Biotechnology Center; February 10-12, 2015, Davis, CA.
  • Meyer, D. J. L. 2013. Seed Quality Testing. Seed Biology, Production and Quality Course. UC Davis Seed Biotechnology Center; February 12-14, 2013, Davis, CA.
  • Meyer, D. J. L. 2011. Inter-laboratory referee on contaminant classification according to AOSA Rules Vol. 3. Report presented and distributed at AOSA/SCST Annual Meeting; 2011 June; Williamsburg, VA.
  • Meyer, D. J. L. 2011. Seed purity, viability, and vigor testing. Seed Biology, Production and Quality Course. UC Davis Seed Biotechnology Center; February 16 & 17, 2011, Davis, CA.
  • Meyer, D. J. L. 2010. The evolution of seed testing. California Seed Industry Conference; May 11, 2010; Modesto, CA.
  • Meyer, D. J. L. 2007. Pure seed versus inert matter: importance of representative pure seed units in viability testing. The 7th Annual Native Seed Quality Symposium. AOSA/SCST Annual Meeting; 2007 June 4–10; Cody, WY.
  • Meyer, D. J. L. and L. J. Prentice. 2007. Sources of variability in native seed testing. The 7th Annual Native Seed Quality Symposium. AOSA/SCST Annual Meeting; 2007 June 4–10; Cody, WY.
  • Meyer, D. J. L. 2005. Proficiency in classification of weed and crop seeds in purity testing: comparison of AOSA handbook 25 referee testing for 2002 and 2005. Seed Technologist Newsletter 79(3):50–57. Presented at AOSA/SCST Annual Meeting; 2005 Jun; Saskatoon, Saskatchewan, Canada.
  • Meyer, D. J. L., and J. Effenberger. 2002. Comparison of purity testing methods of weeping alkaligrass (Puccinellia distans (Jacq.) Parl.). Poster presentation at AOSA/SCST Annual Meeting; 2002, Jun; Sioux Falls, SD.
  • Meyer, D. J. L. 2001. Comparison of four purity testing methods for Festuca brevipila R. Tracey and F. ovina L. Poster presentation at AOSA/SCST Annual Meeting; 2001 Jun; Albuquerque, NM.
  • Meyer, D. J. L. 1999. Comparison of two methods of purity testing for Festuca pratensis Hudson and Lolium x hybridum Haussknecht. AOSA Purity Subcommittee Research Project Report presented and distributed at AOSA/SCST Annual Meeting; 1999, Jun; Omaha, NE.
  • Meyer, D. J. L. 1998. Seed quality problems commonly encountered in the laboratory for vegetable and flower seeds. Society of Commercial Seed Technologists Vegetable and Flower Seed Quality Symposium. AOSA/SCST Annual Meeting; 1998, Jun; Boise, ID.
  • Meyer, D. J. L. 1997. Comparison of three methods of purity testing for Lolium multiflorum, L. perenne and Festuca arundinacea. Poster presentation at AOSA/SCST Annual Meeting; 1997, Jun; Savannah, GA.
  • Meyer, D. J. L. 1996. Uniform classification of weed and crop seeds handbook #25 referee. AOSA Referee/SCST Research Committee Project Report distributed at AOSA/SCST Annual Meeting; 1996, Jun; Fort Collins, CO.
  • Meyer, D. J. L. 1995. Uniform classification of weed and crop seeds handbook #25 referee. AOSA Referee/SCST Research Committee Project Report presented at AOSA/SCST Annual Meeting; 1995, Jun; Sacramento, CA.
  • Meyer, D. 1995. Development of new laboratory testing methods and choosing a seed testing laboratory. Presented at the Association of American Seed Control Officials Annual Meeting; 1995, Jul; East Lansing, MI.
  • Meyer, D. 1994. Pure seed classification for ryegrass (Lolium spp.). AOSA Referee/SCST Research Committee Project Report presented and distributed at AOSA/SCST Annual Meeting; 1994, Jun; Portland, OR. AOSA News Letter 68(3) [abstract].
  • Meyer, D. L. 1990. Winterfat purity, germination and pure live seed determination. AOSA Referee/SCST Research Committee Project Report presented and distributed at AOSA/SCST Annual Meeting; 1990 Jun; Annapolis, MD. AOSA News Letter 64(3) [abstract].

SEED TESTING PROCEDURES

  • Author or co-author of numerous seed testing procedures adopted by the Association of Official Seed Analysts for use in North America.

TEACHING AND TRAINING EXPERIENCE

  • Instructor at numerous workshops sponsored by the California Department of Food and Agriculture, California Seed Analysts and Seed Researchers, and other organizations. Topics covered various aspects of plant propagule identification and seed quality assessment.
  • Instructor for numerous Registered Seed Technologists candidates preparing for the national Registered Seed Technologist Examination. Topics covered various aspects of plant propagule identification and laboratory purity testing procedures.

EXAMPLES OF TRAINING MATERIALS

  1. Meyer, D.J.L. and J. Effenberger. 2010. California Noxious Weed Pest Disseminules Identification Manual. California Department of Food & Agriculture, Sacramento. 63 pp. (4.3MB). [PDF freely available]
  2. Meyer, D. J. L. and J. M. Effenberger. 2007. California noxious weed pest propagules identification manual. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture, Sacramento. 88 pp. [superceded by 2010 version]
  3. Meyer, D. J. L. and J. M. Effenberger. 2007. Pure seed vs. inert matter: How do you know? Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  4. Meyer, D. J. L. and J. M. Effenberger. 2006. Seed descriptions of Trifolium species in the AOSA Rules. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  5. Meyer, D. J. L. and J. M. Effenberger. 2006. Seed and fruit descriptions of selected Kummerowia, Lespedeza, Lotus, Medicago, and Melilotus. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  6. Meyer, D. J. L. 2005. Virtual purity analysis—a review of the AOSA purity rules. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  7. Meyer, D. J. L. and J. M. Effenberger. 2005. Brassicaceae seed identification: Part I – Identification of Brassica and Sinapis and Part II – Identification of Brassicaceae crops other than Brassica and Sinapis. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  8. Meyer, D. J. L. and J. M. Effenberger. 2005. Identification of large-seeded Fabaceae. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  9. Meyer, D. J. L. and J. M. Effenberger. 2004. Noxious weeds and lesser-known crop members of the Fabaceae. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  10. Meyer, D. J. L. and J. M. Effenberger. 2004. Small-seeded weedy grasses. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  11. Meyer, D. J. L. and J. M. Effenberger. 2003. Scrophulariaceae seed identification. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  12. Meyer, D. J. L. and J. M. Effenberger. 2003. Malvaceae fruit and seed identification. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  13. Meyer, D. J. L. 2002. Important seed characters for certain species in Convolvulaceae and other closely related families. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  14. Meyer, D. J. L. and J. M. Effenberger. 2002. Identification of miscellaneous Solanaceae seed. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  15. Meyer, D. J. L. and J. M. Effenberger. 2002. Identification of Lamiaceae nutlets. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  16. Effenberger, J. and D. J. L. Meyer. 2002. A basic guide for wheatgrass identification. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  17. Meyer, D. J. L. and J. M. Effenberger. 2001. Identification of Poaceae seed units: Aegilops, Alopecurus, Phalaris, Setaria, Panicum, Urochloa. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  18. Meyer, D. J. L. and J. M. Effenberger. 2001. Identification of Polygonaceae seed units. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  19. Meyer, D. J. L. 1999. Seed unit identification in the Asteraceae. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  20. Meyer, D. J. L. 1999. Seed unit identification in the Apiaceae (Umbelliferae). Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  21. Meyer, D. J. L. 1999. Descriptions of Trifolium species in the AOSA Rules. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  22. Meyer, D. J. L. 1999. Selected characters of the Poaceae. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  23. Meyer, D. J. L. and J. M. Effenberger. 1999. Identification of large-seeded Fabaceae. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  24. Meyer, D. J. L. and J. M. Effenberger. 1999. Descriptions of selected small-seeded legumes. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  25. Meyer, D. J. L. and J. M. Effenberger. 1999. Botany, a brief introduction for purity analysts. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.
  26. Meyer, D. J. L. 1993. The grass caryopsis. Available from: Plant Pest Diagnostics Center, Calif. Dept. of Food & Agriculture.

SEED TESTING WORKSHOP TOPICS PRESENTED BY MS. MEYER

CDFA Sponsored Seed Testing Workshops

  • 2010 Lecture and laboratory practical on California noxious weed seed disseminule identification.
  • 2007 Lecture and laboratory practical on the following topics: Pure seed unit classification according to the AOSA Rules for Testing Seeds and identification of propagules from California noxious weed species.
  • 2006 Lecture and laboratory practical on seed and fruit identification of small-seeded legumes.
  • 2005 Lecture and laboratory practical on seed and fruit identification of Brassicaceae crops other than Brassica and Sinapis. Lecture entitled “Virtual purity analysis—a review of the AOSA purity rules.”
  • 2004 Lecture and laboratory practical on the following topics: Identification of large-seeded Fabaceae (legume family); seeds and fruits of noxious weeds and lesser-known crop members of the Fabaceae; seeds and florets small-seeded weedy grasses. Lecture: Strange stuff; identification of unusual things submitted to the CDFA Seed Laboratory.
  • 2003 Lecture and laboratory practical on the following topics: Identification of Malvaceae (mallow family) fruits and seeds and Scrophulariaceae (snapdragon family) seeds.
  • 2002 Lecture and laboratory practical on the following topics: Identification of Lamiaceae (mint family) nutlets and Solanaceae (nightshade family) seeds.
  • 1986 Lecture and laboratory practical: Identification of Apiaceae (carrot family) fruits.
  • 1985 Lecture and laboratory practical on the following topics: Purity testing of Brassica oleracea L., and cereal grains; purity testing of Poa pratensis and Dactylis glomerata using the uniform blowing procedure and multiple floret factor method; seed identification of Vicia spp. and the noxious weed seeds of California.
  • 1983 Lecture and laboratory practical: various aspects of germination testing.

California Seed Analysts and Seed Researchers Workshops

  • 2000 Santa Barbara Community College, Santa Barbara, CA
    Lecture and laboratory practical on identification of grass seed units and grass caryopses.
  • 1999 California State University, Fresno, CA
    Lecture and laboratory practical on the following: Seed identification of large-seeded legumes, small-seeded legumes, and Trifolium spp. (Fabaceae); fruit identification of Apiaceae (carrot family) and Asteraceae (sunflower family).
  • 1998 University of California Davis
    Lecture and laboratory practical on general botany.
  • 1997 California State University, Fresno, CA
    Lecture and laboratory practical on the following: Seed unit identification in the Poaceae (grass family), seed identification in the Convolvulaceae (morning-glory family), Trifolium (Fabaceae), and Vicia (Fabaceae).
  • 1996 California State University, Fresno, CA
    Lecture and laboratory practical on seed unit identification in the Asteraceae (sunflower family).
  • 1994 Gavilan Community College, Gilroy, CA
    Lecture on purity testing of 45 species. Lecture and practical on the proper use of AOSA Handbook #25: Uniform Classification of Weed and Crop Seeds
  • 1993 Petoseed, Saticoy, CA
    Lecture and laboratory practical on identification of Asteraceae and Poaceae fruits.
  • 1992 Ransom Seed Laboratory, Carpinteria, CA
    Lecture and laboratory practical on identification of Asteraceae and Apiaceae fruits, and identification of Cucurbitaceae and Fabaceae seeds.
  • 1991 Gavilan Community College, Gilroy, CA
    Lecture and laboratory practical on seed identification of small- and large-seeded legumes (Fabaceae) and large-seeded grasses (Poaceae).

Other Workshops

  • 2015 AOSA Rules Purity Testing Workshop.  Association of Official Seed Analysts – Society of Commercial Seed Technologists Annual Meeting, Tampa Florida, May 2015.  Lecture and laboratory practical on basic tools for purity testing; seed sampling in the warehouse and laboratory; morphological characters of pure seed unit; testing coated seed; how to identify and classify seeds and other non-seed structures; laboratory report of analysis requirements; statistical tolerances for purity testing.
  • 2013 AOSA Rules Purity Testing Workshop. Association of Official Seed Analysts – Society of Commercial Seed Technologists Annual Meeting, Boise Idaho, May 18, 2013. Lecture and laboratory practical on equipment calibration and monitoring; obtaining the working sample; pure seed versus inert matter; grass caryopses in the AOSA Rules; other crop and weed seeds versus inert matter; how to use AOSA Rules Volume 3 for classification of other crop and weed seeds; purity analyses of single kinds and mixtures of species.
  • 2011 International Seed Testing Association (ISTA) Purity Testing Workshop – Saskatoon, Saskatchewan, Canada. Lecture and laboratory practical on botanical terminology, purity analysis methods and procedures, and seed identification.
  • 2005 Association of Official Seed Analysts – Commercial Seed Analysts Association of Canada – International Seed Testing Association Rules Workshop, Saskatoon, Saskatchewan, Canada. Lecture and laboratory practical on the similarities and differences in standardized seed laboratory testing methods among the AOSA Rules for Testing Seeds, ISTA Rules for Seed Testing and the Canadian Food Inspection Agency Methods and Procedures for Testing Seed.
  • 2005 Idaho Seed Analysts Association Workshop, Harris Moran Seed Co., Nampa, ID. Lecture and laboratory practical on seed development and morphology of large-seeded members of the Fabaceae.
  • 2003 International Seed Testing Association Purity Testing Workshop, Seattle, WA. Lecture on comparison of AOSA and ISTA grass seed purity testing.
  • 2003 Seed Analyst Training Workshop, Mid-West Seed Services, Inc., Brookings, SD. Lecture on general botany. Lecture and laboratory practical on the following: seed unit identification in the Poaceae (Aegilops, Alopecurus, Phalaris, Panicum, Setaria, Urochloa, Elytrigia, Agropyron, Elymus, Pascopyrum, Pseudoroegneria, and Psathyrostachys) and fruit identification in the Polygonaceae (knotweed family), Apiaceae (carrot family) and Asteraceae (sunflower family).
  • 2002 Idaho Seed Analysts Association Workshop, College of Southern Idaho, Twin Falls, ID Lecture and laboratory practical on the following: Writing and using dichotomous seed keys and character tables. Seed identification in the Solanaceae and Convolvulaceae. Identification of Lamiaceae nutlets.
  • 1999 Seed Analyst Training Workshop, Mid-West Seed Services, Inc., Brooking, SD. Lecture on general botany. Lecture on the use of AOSA Handbook 25, Uniform Classification of Weed and Crop Seeds. Lecture and laboratory practical on the following: seed identification in the Fabaceae, and fruit identification in the Apiaceae (carrot family) and Asteraceae (sunflower family).

SPECIAL PROJECTS

Floristic Study

  1. Meyer, D. J. L., 1997. Preliminary checklist of grasses: South Cow Mountain OHV Recreation Area (Mayacmas Mountains), Mendocino Co., CA. Part of a floristic study for the U.S. Dept. of Interior, Bureau of Land Management. Project coordinator: Dr. Michael Baad.

Archaeological Projects (Identification of various carbonized plant propagules and vegetative fragments)

In cooperation with the California Department of Parks and Recreation, Cultural Heritage Section, Archaeological Laboratory.
  • 1990. Santa Cruz Mission State Historic Park, angled adobe specimens (ca. 1800–1824 CE) and mission rooms 1–7 (ca. 1824–1840 CE).
  • 1990. Sonoma Coast, Duncans Landing, Sonoma Coast State Beach, CA-SON-348/H.
In cooperation with the California Department of Transportation, Division of Project Development, Office of Environmental Analysis, Cultural Resources.
  • 1998. Los Angeles Co., near Hwy. 126, CA LAN 2233 1994. Tehama Co., Hwy. 36, south fork of Dibble Creek, CA-The-789 1991. Tuolumne Co., CA-TUO-2642. 1991. Stony Creek, Glenn Co. 1990. Sonora Pass, Tuolumne Co., CA-TUO-2197, ca. 1400 CE. 1990. Tuolumne Co., CA-TUO-2194.
In cooperation with the Far Western Anthropological Research Group, Davis, CA.
  • 1991. Feather River, 10 mi. south of Marysville, Sutter County, CA-SUT-17, post 1400 CE.
  • 1991. Gilroy, Highway 152, Santa Clara Co.
  • 1990. Redding, Sacramento River, Shasta Co., 1,000–1,600 CE.
  • 1990. Coso Mountains, China Lake Naval Weapons Center.
  • 1990. Glenn, Colusa and El Dorado Counties.
  • 1990. Mariposa Co., Yosemite, CA-MRP-902.
  • 1990. Sequoia National Park.
  • 1990. North Fork of Cottonwood Creek, Shasta Co., 800–1800 CE.
  • 1989. Indian site north of Redding, Shasta Co., SHA-1588.
  • 1988. Glenn Co., CA-GLE-105.
Identifications for the Department of Anthropology, University of California, Davis
  • 1995. Cave deposits (600–1200 CE), Volcanic Tableland, northern Owens Valley, CA

SPECIAL SKILLS

  • Botanical illustrator: numerous illustrations appearing in a variety of scientific and technical publications.