Pieces of forest tree seed units… …Pieces of unscientific nonsense

Literature Cited

Anon. 1948. Woody-Plant Seed Manual. U.S. Dept. Agric. Misc. Pub. 654. 416p.

Anon. 1961. Forest Tree seed Number. Proc. Internat. Seed Test. Assoc. 26(3) (G.D. Holmes, Introduction: 363–365).

Anon. 2009. International Rules for seed testing, Edition 2009. The International Seed Testing Association, CH-8303 Bassersdorf, Switzerland. Pages numbered by chapter, 373 total.

Anon. 2012. High Times. PO Box 422560 Palm Coast, FL 32142-2560, USA.

Ashton, D. 2000. Assessment of half seeds (and other pure seed classification problems). Proceedings of the ISTA Purity Workshop, Budapest, Hungary, April 1–4, 1997: 56–63.

Bonner, F.T. 2008. Storage of seeds. IN: Bonner et al. 2008: 85–95.

Bonner, F.T., Karrfalt, R.P, and R.G. Nisley. 2008. The Woody Plant Seed Manual. U.S. Dept. Agric. For Serv., Agric. Handb. 727. 1223p.

Camenzind, W.G. 1990. A guide to aerial cone collection equipment and techniques in British Columbia. Silviculture Branch, B.C. Min. For. 30p.

Cayne, B.S. (Edit. Dir.) and D.E. Lechner (Manag. Ed.). 1987. The New Lexicon Webster’s Dictionary of the English Language. Lexicon Pub. Inc., New York. 1149p. + Encyclop. Suppl.

Chaisurisri K., D.G.W Edwards and Y.A. El-Kassaby. 1994. Effects of seed sizing on seedling attributes in Sitka spruce. New Forests 8: 81–87.

Dallimore, W. and A.B. Jackson. 1954. A Handbook of Coniferae including Ginkgoaceae. Edward Arnold Publishers, London. 686p.

Daws, M.I., J. Davies, E. van Gelder, and H.W. Pritchard. 2007. Two-hundred-year seed survival of Leucospermum and two woody species from the Cape Floristic region, South Africa. Seed Sci. Res.17: 73–79.

Dobbs, R.C., D.G.W. Edwards, J. Konishi and D.P. Wallinger. 1974. Cone picker’s manual. B.C. For. Serv./Can. For. Serv., Joint Rep. No. 1, 13p.

Dobbs, R.C., D.G.W. Edwards, J. Konishi and D. Wallinger. 1976. Guideline to collecting cones of B.C. conifers. B.C. For. Serv./Can. For. Serv., Joint Rep. No. 3, 98p.

Edwards, D.G.W. 1969. Investigations on the delayed germination of noble fir. Dissert. Abstr. Internat. 30/06 B: 2482.

Edwards, D.G.W. 1981a. Cone collection and processing effects on seed quality and yield. Pages 12–37, IN: R.F. Huber (comp.). Proc. Seed Workshop on High Quality Collection and Production of Conifer Seed. Can. For. Serv., Edmonton, 1979. 88p.

Edwards, D.G.W. 1981b. Impact of seed quality on costs of nursery stock. Pages 79–83, IN: R.F. Huber (Comp.). Proc. Seed Workshop on High Quality Collection and Production of Conifer Seed. Can. For. Serv., Edmonton, 1979. 88p.

Edwards, D.G.W. 1986. Cone prediction, collection and processing. Pages 78–102, IN: R.C. Shearer (comp.). Proc. Sympos. “Conifer tree seed in the Inland Mountain West.” Aug. 1985. Missoula, Montana, USA. U.S. For. Serv., Gen. Tech. Rep. INT-203.

Edwards, D.G.W. 2002. Seed-to-wing attachments in important members of the Pinaceae with additional observations on members of the Cupressaceae and Taxodiaceae. PowerPoint presentation, IUFRO International Symposium “Seed 2002,” Sept. 11–15, 2002, Chania, Crete.

Edwards, D.G.W. 2006. Reasons for revising pure seed definitions for important coniferous species—Pinaceae, Cupressaceae, Taxaceae, Taxodiaceae. PowerPoint presentation, ISTA Forest Tree and Shrub Seed Committee Seminar, Sept. 12–15, 2006, Verona, Italy.

Edwards, D. George W. 2008. Abies P. Mill. Fir. IN: Bonner et al. 2008: 149–198.

Eis, S. 1973. Cone production of Douglas-fir and its climatic requirements. Can. J. For. Res. 3: 61–70.

Eremko, R.D., D.G.W. Edwards and D. Wallinger, 1989. A guide to collecting cones of B.C. conifers. Joint For. Can. B.C. Min. For. FRDA Report 055. Victoria, B.C. 90p. & App.

Esbo, H. 1965. Testing for purity. Proc. Internat. Seed Test. Assoc. 30(1): 29–37.

Gorian F., M.I. Daws and S. Pasquini. 2006. Qualitative testing on particle sizes of Larix decidua Mill. seeds. PowerPoint presentation, ISTA Forest Tree and Shrub Seed Seminar, Verona, Italy, September 12–15, 2006.

Grove. P. B. (Ed. in Chief). 1971. Webster’s Third New International Dictionary. Merriam-Webster Inc., Springfield, Mass., U.S.A. 2662p.

Justice, O.L. 1965. Aims, functions and achievements of the International Seed Testing Association. Proc. Internat. Seed Test.Assoc. 30 (1): 3–13.

Krugman S.L. and C.D. Whitesell, 2008. Eucalyptus L’Her. Eucalyptus. IN: Bonner et al. 2008: 504–512.

Leadem, C.L.1993. Respiration of Tree Seeds. In: Edwards, D.G.W., comp. & ed. Proc. Internat. Sympos. "Dormancy and Barriers to Germination". IUFRO Proj. Group P2.04.00 (Seed Problems): 1991, Victoria, B.C. Victoria: Forestry Canada, Pacific Forestry Centre: 57–66.

Lowry, W.P. 1966. Apparent meteorological requirements for abundant cone crop in Douglas-fir. For. Sci. 12: 185–192.

Morton, J. 1987. Avocado. IN: Fruits of warm climates (Julia F. Morton) Miami, FL : 91–102.

Murray, Sir. J.A. 1971. Compact edition of the Oxford English Dictionary. Complete text reproduced micrographically. Oxford at the Clarendon Press. 2 volumes. 4015p.

Owens, J.N. and M. Molder. 1985. The reproductive cycle of the true firs. Victoria, B.C.: B.C. Min. For., For. Br., Res. Div., 32p.

Portlock F.T. 1996. A field guide to collecting cones of British Columbia conifers. British Columbia Tree Seed Dealers’ Assoc. Joint For. Can. B.C. Min. For.: FRDA II. 91p.

Porsild, A.E. 1967. Lupinus articus Wats. Grown from seeds of Pleistocene Age. Science 158: 113.

Schopmeyer, C.S. 1974. Seeds of woody plants in the United States. U.S. Dept. Agric. For. Serv., Agric. Handbook 450, 883p.

Schubert, T.H. and J.K. Francis, 2008. Tectona grandis L.f. teak. IN: Bonner et al. 2008: 1099–1101.

Shepperd, W.D. 2008. Gingko biloba L. Gingko. IN: Bonner et al. 2008: 559–561.

Stein, J. (Ed. in Chief) and L. Urdang (Manag. Ed.), 1967. The Random House Dictionary of the English language. Random House, New York, 2059p.

Vozzo, J.A. (Ed.), 2002. Tropical tree seed manual. U.S. Dept. Agric. For. Serv., Agric. Handb. 721, 899p.

Wang, B.S.P. 1974. Tree seed storage. Pub. 1335. Ottawa, Canada Dept. Environ., Can. For. Serv. 32p.

Young, J.A. and C.G. Young, 1992. Seeds of woody plants in North America. Revised and enlarged edition. Discorides Press (an imprint of Timber Press, Inc.), Portland, OR. 407p.

Reviewer’s Qualifications

Education

University of Aberdeen, Scotland—B.Sc.(Forestry), 1959.

University of Washington, Seattle, WA—Master of Forestry, 1963. Thesis: The effect of soil type on growth of noble fir (Abies procera) seedlings.

University of Washington, Seattle, WA—Ph.D. (Forestry), 1969. Thesis: Delayed germination in noble fir (Abies procera) seeds.

Employment History

Forestry Commission, Forest Research Station, Farnham (England), Seed Laboratory, Technician—1961–62.

University of Washington, College of Forest Resources, Seattle (Washington), Research Assistant—1959–1960.

University of Washington, College of Forest Resources, Seattle (Washington), Research Assistant and Teaching Assistant— 1963–68.

Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre, Victoria, Research Scientist—1968–1996.

Proprietor, FTB Forest Tree Beginnings, Consulting Company, Victoria, British Columbia—1996–present.

Associations/Professional Affiliations

International Seed Testing Association (ISTA)—Official member (CAN07) accredited to issue International certificates of seed quality, 1975–1999, Pacific Forestry Centre, Canadian Forest Service, Victoria, British Columbia, Canada.

Member of the Forest Tree and Shrub Seed Committee, 1972–2006.

International Union of Forest Research Organizations (IUFRO), Research Group 2.09.00 (Seed Physiology and Technology)—member 1972–2002, Chairman 1991–2001.

Association of the Official Seed Analysts of North America (AOSA)—member of the Forest Tree Seed Committee.

Organization for Economic Cooperation and Development (OECD)—Official Representative for the Canadian Designated Authority for the scheme for certification of forest reproductive materials moving in international trade, 1983–1989.

Pacific Northwest Seed Certifiers Association—member, 1971–1990.

IUFRO Working Party S2.03-14 (Seed Legislation)—member.

Western Forest and Range Seed Council—member, past Chairman.

Canadian Tree Improvement Association, Tree Seed Working Group—founding member.

Canada/British Columbia Cone and Seed Committee—member, past Chairman.

British Columbia Tree Seed Dealers’ Association—associate member.

Honorary memberships/awards

Member, Society of the Sigma Xi, University of Washington Chapter, 1964.

Distinguished Leadership Award, Extraordinary Service to Forest Tree Seed Science, American Biographical Institute, 1992.

Distinguished Service Award, International Union of Forestry Research Organizations (IUFRO), 2000.

Editorial Review Boards

New Forests, Tree Physiology

Journal Referee

Annals of Botany

Canadian Journal of Botany

Canadian Journal of Forest Research

Forest Ecology and Management

Forest Science

Forestry Chronicle

Journal of Southern Forestry

Journal of Plant Physiology

Journal of Tropical Forest Science

New Forests

Seed Science and Technology

Silvae Genetica

Tree Physiology

Faculty Membership

Adjunct Professor, Department of Forest Sciences, University of British Columbia.

Publications

a. Published reports

Chaisurisri K., D.G.W Edwards and Y.A. El-Kassaby. 1993. Accelerated aging of Sitka spruce seeds. Silvae Genet. 42: 303–308.

Chaisurisri K., Y.A. El-Kassaby and D.G.W Edwards. 1993. Genetic control of seed size and germination in Sitka spruce seeds. Silvae Genet. 41: 338–354.

Davidson, R.H., D.G.W. Edwards and O. Sziklai. 1985. Treatment and temperature effects on the germination of Pacific silver fir. Program and Abstracts, Northwest Scientific Assoc. Mtg. Montana Acad. Sci. Cont., Montana 1984, Authors Index no. 94.

Davidson, R.H., D.G.W. Edwards, O. Sziklai and Y.A. El.-Kassaby. 1995. Genetic variation in germination parameters among Pacific silver fir populations. Silvae Genet. 45: 165–171.

Dobbs, R.C., D.G.W. Edwards, J. Konishi and D.P. Wallinger. 1974. Cone picker’s manual. B.C. For. Serv./Can. For. Serv., Joint Rep. No. 1, 13p.

Dobbs, R.C., D.G.W. Edwards, J. Konishi and D. Wallinger. 1976. Guideline to collecting cones of B.C. conifers. B.C. For. Serv./Can. For. Serv., Joint Rep. No. 3, 98p.

Edwards, G. 1962. The germination requirements of Abies species. Proc. Internat. Seed Testing Assoc. 27: 127–210.

Edwards, D.G.W. 1969. Investigations on the delayed germination of noble fir. Dissert. Abstr. Internat. 30/06 B: 2482.

Edwards, D.G.W. 1970. Book review of “The New Forest: an ecological history” by Colin R. Tubbs. David & Charles: Newton Abbot, 248p. Forest History 14(1): 35–36.

Edwards, D.G.W. 1970. Moisture relations during stratification of noble fir seed. Abstracts, First North Am. For Biol. Workshop, Mich. State Univ., August 1970. (Pages unnumbered).

Edwards, D.G.W. 1971. The kinetics of water absorption in stratifying and non-stratifying noble fir (Abies procera Rehd.) seeds. Can. J. For. Res. 1(4): 235–240.

Edwards, D.G.W. 1971. An aberrant cone in western hemlock. Canada Dept. Environ., Bi-Mon. Res. Notes 27(5): 33.

Edwards, D.G.W. 1973. Effects of stratification on western hemlock germination. Can. J. For. Res. 3(4): 522–527.

Edwards, D.G.W. 1973. Effect of a soil wetting agent on germination of four important British Columbia conifers. Forest. Chron. 49(3): 1–4.

Edwards, D.G.W. 1973. Polaroid film for rapid seed radiography. International Symposium on Seed Processing, IUFRO WP, Bergen, Norway. Vol. 1—Paper No. 6. 8p.

Edwards, D.G.W. 1974. A germination dish for testing tree seeds. Dep. Environment, Can. Forest. Serv., Bi-Mon. Res. Notes 30(4): 26–27.

Edwards, D.G.W. 1974. More on radiographs. Tree Planters’ Notes 25(2): 21.

Edwards, D.G.W. 1975. Abnormal germinants of western hemlock. Seed Sci. and Technol. 5: 799–803.

Edwards, D.G.W. 1975. Propagation of yellow cedar. “High elevation reforestation problems.” Interim Research Results No.1, B.C.F.S./C.F.S. Joint Report: 4.

Edwards, D.G. 1976. Seed physiology and germination in western hemlock. Pages 87–102 in Atkinson, W.A. and R.J. Zasoski (eds). Proc. Western Hemlock Management Conference, May 1976, Alderbrook, Washington. College of Forest Resources, University of Washington. 317p.

Edwards, D.G.W. 1976. World Directory of tree seed workers. Pub. by Can. For. Serv. for IUFRO, 133p.

Edwards, D.G.W. 1977. Tree seed research, Pacific Forest Research Centre, B.C. Proc. 16th.Meeting Canad. Tree Imp. Assoc., Part I: 209–216.

Edwards, D.G.W. 1979. An improved air seed-sorter for laboratory use. Dep. Environ., Can. For. Serv., Pac. For. Res. Cent., Victoria, B.C. BC-X-188, 11p.

Edwards, D.G.W. 1979. Maturity and Seed Quality: a state-of-the-art review. Pages 233–263 in F.T. Bonner (ed.). Proc. USFS/IUFRO/Miss. St. Univ., Intern. Sympos. “Flowering and seed development in trees.” May 1978. Starkville, Miss. U.S. For. Serv., Southern For. Exp. Sta., Starkville, Miss. 380p.

Edwards, D.G.W. 1979. Tree seed research, Pacific Forest Research Centre, B.C., 1977–1979. Proc. 17th Meeting Can. Tree Imp. Assoc., Part I: 231–236.

Edwards, D.G.W. 1980. A new pre-chilling method for true fir seeds. Proc. Joint Mtg. Intermountain Nurseryman’s Assoc. and Western Forest Nursery Assoc., Boise, Idaho, Aug. 1980: 58–65.

Edwards, D.G.W. 1980. Maturity and quality of tree seeds—a state-of-the-art review. Seed Sci. and Technol. 8: 625–657.

Edwards, D.G.W. 1980. Progress report of the Working Group on germination of other seeds. Rep. to For. Tree Comm., Internat. Seed Testing Assoc., 19th Congr., Vienna, Austria, 1980. Seed Sci. and Technol. 9(l): l90–l9l.

Edwards, D.G.W. 1980. The Western Forest Tree Seed Council. Proc. Joint Mtg. Intermountain Nurseryman’s Assoc. and Western Forest Nursery Assoc. Boise, Idaho Aug. 1980: 29–31.

Edwards, D.G.W. 1980. Sampling and purity testing. Pages 37–113, Proc. IUFRO/ISTA/INIF Int. Workshop on Tropical Seed Problems, Mexico, 1980. Instituto Nacional de Investigationes Forestales, SARH. 352p.

Edwards, D.G.W. 1981a. Cone collection and processing effects on seed quality and yield. Pages 12–37 in R.F. Huber (comp.). Proc. Seed Workshop on High Quality Collection and Production of Conifer Seed. Can. For. Serv., Edmonton, 1979. 88p.

Edwards, D.G.W. 1981b. Impact of seed quality on costs of nursery stock. Pages 79–83 in R.F. Huber (comp.). Proc. Seed Workshop on High Quality Collection and Production of Conifer Seed. Can. For. Serv., Edmonton, 1979. 88p.

Edwards, D.G.W. 1982. Storage of pre-chilled Abies seeds. Pages 195–203 in B.S.P. Wang and J.A. Pitel (comp. and eds.). “Seed storage.” Proc. IUFRO WP S2.01.06 Intern. Sympos., Petawawa Nat. For. Inst. Sept. 1980. Can. For. Serv., Min. Supply and Serv., Ottawa. 243p.

Edwards, D.G.W. 1982. Collection, processing, testing and storage of true fir seeds—a review. Pages 113–137. IN: C.D. Oliver and R.M. Kenady (eds.). Proc. True Fir Symposium, Biology and Management in the Pacific Northwest, Seattle, Feb. 1981. US For. Serv., Pac. Northwest and Range Exp. Sta. and Univ. Wash., Coll. For. Resources.

Edwards, D.G.W. l982. Improving seed germination in Abies. Proc. Internat. Plant Propagators’ Soc. Mtg., Richmond, B.C., Canada, l98l: 69–78.

Edwards, D.G.W. l983. Role of the Pacific Forest Research Centre in testing tree seeds under international rules. For. Chron. 59: 67–69.

Edwards, D.G.W. 1984. The role of seeds and seed research in combating the exploitation of the world’s forest resources. Seed Sci. and Technol. 12: 757–765.

Edwards, D.G.W. 1985. Cone prediction, collection and processing. IN: Proc. Conifer Tree Seed in the Inland Mountain West, Symposium, Missoula, MT. U.S. Dep. Agric. For. Serv. Rep. INT-203.

Edwards, D.G.W. 1985. Seed Vac. In, ISTA Handbook for home-made equipment for seed testing (E. Madsen, ed.). Internat. Seed Test. Assoc. Zurich: 171–173.

Edwards, D.G.W. 1985. An improved air seed cleaner/sorter. In, ISTA Handbook for home-made equipment for seed testing (E. Madsen, ed.). Internat. Seed Test. Assoc., Zurich: 44–46.

Edwards, D.G.W. 1986. Special pre-chilling techniques for tree seeds. J. Seed Technol. 10: 151–171.

Edwards, D.G.W. 1986. Cone prediction, collection and processing. Pages 78–102 in R.C. Shearer (comp.). Proc. Sympos. “Conifer tree seed in the Inland Mountain West.” Aug. 1985. Missoula, Montana, USA. U.S. For. Serv., Gen. Tech. Rep. INT-203.

Edwards, D.G.W. 1987. Methods and procedures for testing tree seeds in Canada. Can. For. Serv., For. Tech. Rep. 36 (bilingual), 31p.

Edwards, D.G.W. 1988. Forest tree seed certification in Canada under the OECD scheme and ISTA rules: 1981–1985. Can. For. Serv., Info. Rep. BC-X-299, 16p.

Edwards, D.G.W. (comp. and ed.). 1993. Dormancy and barriers to germination. Proc. Internat. Sympos. IUFRO Project Group P2.04-00 (Seed Problems). April 1991, Victoria, B.C., Canada. Can. For. Serv., Pacific Forestry Centre. 153p.

Edwards, D.G.W. 1993. An historical overview of seed upgrading techniques and on to new roads of discovery. Pages 21–24 IN: F.T. Portlock (comp.). Proc. Joint Mtg. B.C. Seed Dealers’ Assoc./West. For. Range Seed Counc. June 1993. Vernon, B.C. For. Canada/BC Min. For. 53p.

Edwards, D.G.W. 1997. The stratification-redry method with special reference to true fir seeds. Pages 172–182. IN: T. Landis (ed.). National Proc.: Forest and Conserv. Nurs. Assocs. Mtg., Salem, Oregon; August 1996. USDA For. Serv. Gen. Tech. Rep. PNW-GTR-389.

Edwards, D.G.W. 1999. Two newer methods for improving physical quality of forest seeds. Pages 165–182. IN: Edwards D.G.W. and S.C. Naithani (eds.). Seed and nursery technology of forest trees. New Age International (P) Ltd., Publishers. New Delhi, India. 309p.

Edwards, D.G.W. 2000. Forest tree seeds at the end of the 20th. Century: major accomplishments and needs. A State of the Knowledge Report on forest tree seeds, prepared for the International Union of Forestry Research Organizations (IUFRO) XXI World Congress, Kuala Lumpur, Malaysia. 10p. Full text can be accessed at:
http://iufro.boku.ac.at/iufro/iufronet/d2/hp20900.htm

Edwards, D.G.W. 2002. Seed-to-wing attachments in important members of the Pinaceae, with additional observations on members of the Cupressaceae. IN: Thanos, C.A., Beardmore, T., Connor K., Tolentino, I., eds. Proceedings IUFRO Research Group 2.09.00 (Seed Physiology and Technology) International Symposium, “Tree Seeds 2002,” Chania, Crete; Sept. 11–15, 2002; Univ. Athens, MAICh, Hellenistic Ministry of Agriculture, International Soc. for Seed Science; 59–69.

Edwards, D.G.W. 2008. Abies P. Mill. fir. Pages 149–198. IN: Bonner, F.T., R.P. Karrfalt and R. Nisley. The Woody Plant Seed Manual. United States Dept. Agric., For. Serv., Agric. Handbk. 727. 1223p.

Edwards, D.G.W. and Y.A. El-Kassaby. 1988. Effect of flowering phenology, date of cone collection, cone-storage treatment and seed pretreatment on yield and germination of seeds from a Douglas-fir seed orchard. J. For. Ecol. and Manag. 25: 17–29.

Edwards, D.G.W. and Y.A. El-Kassaby. 1993. Ex-situ conservation of forest biodiversity in British Columbia. Pages 65–67. IN: V. Marshall (comp.). Proc. For. Ecosystem Dynamics Workshop. February 1993. Pac. For. Cent., Victoria, BC. Can./Brit. Columbia. Partnership Agreement on For. Res. and Dev: FRDA II. FRDA Rep. 210. 98p.

Edwards, D.G.W. and Y.A. El-Kassaby. 1995. Douglas-fir genotypic response to seed stratification. Seed Sci. & Technol. 23: 771–778.

Edwards, D.G.W. and Y.A. El-Kassaby. 1996. The effect of stratification and artificial light on the germination of mountain hemlock seeds. Seed Sci. & Technol. 24: 225–235.

Edwards, D.G.W. and Y.A. El-Kassaby. 1996. The biology and management of coniferous forest seeds: genetic perspectives. Forest. Chron. 72: 481–484.

Edwards, D.G.W. and C.L. Leadem. 1988. The reproductive biology of western red cedar with some observations on nursery production and prospects for seed orchards. Proc. Conf. “Western red cedar—does it have a future?” Univ. Brit. Columbia., July 1987: 102–113.

Edwards D.G.W. and M.D. Meagher. 1995. Mountain hemlock (Tsuga mertensiana [Bong.] Carr.)—an annotated bibliography. Can. For. Serv., Pac. For. Cent., Victoria, BC. Info. Rep. BC-X-352. 45p.

Edwards, D.G.W., M.D. Meagher and Y.A. El-Kassaby. 1993. Genetic diversity in mountain hemlock (Tsuga mertensiana [Bong.] Carr. Pages 68–71 in V. Marshall (comp.). Proc. For. Ecosystem Dynamics Workshop. Feb. 1993. Pac. For. Cent., Victoria, BC. Can./Brit. Columb. Partnership Agreement on For. Res. Dev: FRDA II. FRDA Rep. 210. 98p.

Edwards, D.G.W., G.E. Miller, F.T. Portlock and J.R. Sutherland. l984. Tree Seed Research and Certification, Pacific Forest Research Centre l98l-82. Proc. l9th Meeting Canad. Tree Imp. Assoc., Part I: 210–215.

Edwards, D.G.W., G.E. Miller, F.T. Portlock and J.R. Sutherland. 1986. Cone and seed research and seed certification, Pacific Forestry Centre 1983–1984. Proc. 20th Meeting Can. Tree Imp. Assoc. Part I: 219–224.

Edwards, D.G., S. Eis, G.E. Miller, F.T. Portlock, J.R. Sutherland and D.W. Taylor.1988. Cone and seed research and seed certification, Pacific Forestry Centre 1985–86. Proc. 21st. Meeting Canad. Tree Imp. Assoc. Part I: 127–131.

Edwards, D.G.W. and A.K. Mitchell. 1993. Conserving genetic resources of forests in the Pacific and Yukon Region: an introduction to Project PC-71-50. Pages 63–64. IN: V. Marshall (comp.). Proc. For. Ecosystem Dynamics Workshop. Feb. 1993. Pac. For. Cent., Victoria, B.C. Can./Brit. Columb. Partnership Agreement on For. Res. and Dev.: FRDA II. FRDA Rep. 210. 98p.

Edwards, D.G.W. and P.E. Olsen. 1972. R-55 rodent repellent: effect on germination in Douglas-fir and western hemlock. Can. J. For. Res. 2(3): 256–263.

Edwards, D.G.W. and P.E. Olsen. 1973. A photoperiod response in germination of western hemlock seeds. Can. J. For. Res. 3(1): 146–148.

Edwards, D.G.W., Pollard, D.F.W. and B.S.P Wang. 1988. Guidelines for grading and labeling forest tree seeds in Canada. For. Chron. 64: 334–344.

Edwards, D.G.W. and F.T. Portlock. 1985. Certification of lodgepole pine seeds of Canadian origins under the OECD scheme. Page 374, IN: Baumgartner, D.M., R.G. Krebill, J.T. Arnott and G.F. Weetman, comp. and eds.). Proc. Sympos. “Lodgepole pine, the species and its management.” May 1984. Univ. Brit. Columbia, Wash. St. Univ. Coop. Extension. 381p.

Edwards, D.G.W. and F.T. Portlock. 1986. Expansion of Canadian tree seed certification. For. Chron. 62:461–466.

Edwards, D.G.W. and F.T. Portlock. 1993. Forest tree seed certification in Canada. Pages 21–127, IN: H. Wolf (ed.). Seed procurement and legal regulations for forest reproductive material in tropical and subtropical countries. Proc. IUFRO WP S2.02.21 First Internat. Sympos. Nairobi, Kenya. October 1992. GTZ-Forestry Seed Centre Muguga, Nairobi, Kenya.

Edwards, D.G.W., F.T. Portlock and D.W. Taylor. l983. The “Seed-Vac,” a homemade device for transferring seed samples. Canada Dept. of Environment, Can.. For.. Serv. Research Notes 3(4): 22–24.

Edwards, D.G.W. and J.R. Sutherland. 1979. Hydrogen peroxide treatments of Abies seeds. Dep. Environ., Can. For.. Serv., Bi-Mon. Res. Notes 35(1): 3–4.

Edwards, D.G.W., J.R. Sutherland and G.E. Miller. l982. Tree Seed Research, Pacific Forest Research Centre l979-l980. Proc. l8th Meeting Canad. Tree Imp. Assoc., Part I: 69–73.

Edwards, D.G.W. and D.W. Taylor. 1985. Germination of commercially-collected lodgepole pine seeds from British Columbia and the Yukon Territory. Page 375, IN: D.M. Baumgartner, G. Krebill, J.T. Arnott and G.F. Weetman (comp. and eds.). Proc. Sympos. “Lodgepole pine, the species and its management.” May 1984. Univ. Brit. Columb. Wash. State Univ. Coop. Extension. 381p.

Edwards, D.G.W., Taylor, D.W. and E.C. McKendry. 1985. Enhancing seed lot quality in lodgepole pine by flotation sorting. Pages 375–376, IN: D.M. Baumgartner, D.M., R.G. Krebill, J.T. Arnott and F.G. Weetman (comp. and eds.). Proc. Sympos. “Lodgepole pine, the species and its management.” May 1984. Univ. Brit. Columb. Wash. St. Univ. Coop. Extension. 381p.

Edwards, D.G.W. and B.S.P. Wang. 1995. A training guide for laboratory analysis of forest tree seeds. Nat. Res. Can., Can. For. Serv., Pacific and Yukon Region, Info Rep. BC-X-356, 64p.

Edwards, D.G.W., B.S.P. Wang et P.A. Boross. 1994. Guide des essais de semences forestières en laboratoire. Res. Nat. Can., Serv. Can. For., Inst. For. Nat. Petawawa, Rap. d’Info. PI-X-110F, 57p.

El-Kassaby, Y.A., A. Benowicz, and D.G.W. Edwards. 2001. Genetic variation in germination attributes and response to accelerated aging in western hemlock seeds. Submitted to For. Ecol. and Manag.

El-Kassaby, Y.A., K. Chaisurisri, D.G.W. Edwards, and D.W. Taylor. 1993. Genetic control of germination parameters of Douglas-fir, Sitka spruce, western redcedar, and yellow-cedar and its impact on container nursery production. Pages 37–42, IN: D.G.W. Edwards, comp. and ed. Proc. IUFRO Sympos. “Dormancy and barriers to germination,” Victoria, BC, Canada. April 1991. For. Can., Pac. For. Cent. 153p.

El-Kassaby Y.A. and D.G.W. Edwards. 1998. Genetic control of germination and the effects of accelerated aging in mountain hemlock seeds and its relevance to gene conservation. For. Ecol. and Manag. 112: 203–211.

El-Kassaby Y.A. and D.G.W. Edwards. 2001. Germination ecology of mountain hemlock (Tsuga mertensiana [Bong.] Carr.). For. Ecol. and Manag. 144: 183–188.

El-Kassaby, Y.A. D.G. Edwards and C. Cook. 1990. Impact of crop management practices on seed yield in a Douglas-fir seed orchard. Silvae Genet. 39: 226–230.

El-Kassaby, Y.A., D.G.W. Edwards and D.W. Taylor. 1990. Effect of water-spray cooling treatment in a Douglas-fir seed orchard on seed germination. New Forests 4: 137–146.

El-Kassaby, Y.A., D.G.W. Edwards and D.W. Taylor. 1992. Genetic control of germination parameters in Douglas-fir and its importance for domestication. Silvae Genet. 41: 48–54.

Eremko, R.D., D.G.W. Edwards and D. Wallinger, 1989. A guide to collecting cones of British Columbia conifers. Canada/Brit. Columbia For. Resource Development Agreement (FRDA) Rep. 055, 114p.

Gordon, A.G. and D.G.W. Edwards. 1991. Testing the germination of tree seeds. Chapter 5 in A.G. Gordon, P. Gosling and B.S.P. Wang (eds.). Tree and shrub seed handbook. Internat. Seed Test. Assoc., Zurich, Switzerland. (Pages numbered by chapters.)

Leadem, C.L. and D.G.W. Edwards. 1984. A multiple-compartment tree seed tumbler-drier. Tree Plant. Notes 35(3): 23–25.

Pollard, D.F.W., D.G. Edwards and C.W. Yeatman (eds). 1982. Seed orchard strategies for tree improvement. Proc. 18th. Meeting Canad. Tree Imp. Assoc. Part II: 1–194.

Sutherland, J.R. and D.G.W. Edwards. 1976. Pigments for use on conifer seeds sown in forest nurseries. Can. For. Serv, Rep. BC-X-146, 12p.

Sweeney, J.D., Y.A. El-Kassaby, D.W. Taylor, D.G.W. Edwards and G.E. Miller. 1991. Applying the IDS method to remove seeds infested with the seed chalcid, Megastigmus spermotrophus Wachtl., in Douglas-fir, Pseudotsuga >menziesii (Mirb.) Franco. New Forests 5: 327–334.

Tanaka, Y. and D.G.W. Edwards. 1986. An improved and more versatile method for pre-chilling Abies procera Rehd. seeds. Seed Sci. and Technol. 14: 457–464.

b. Unpublished Reports

Auclair, A.N.D., D.G.W. Edwards (and others). 1984. Scoping issues and research problems: forest renewal, stand tending and resource inventory in British Columbia. Canada, Pac. For. Res. Cent. Misc. Pub. 126. 73p.

Edwards, D.G.W. 1974. Seed treatment. IN: Western Hemlock Regeneration, a synthesis of current research and knowledge: 2–4. Hemlock Regeneration Workshop, Weyerhaeuser Co. For. Res. Cent., Centralia, WA.

Edwards, D.G.W. 1974. Root growth and regeneration. IN: Western Hemlock Regeneration, a synthesis of current research and knowledge: 10–12. Hemlock Regeneration Workshop, Weyerhaeuser Co. For. Res. Cent., Centralia, WA.

Edwards, D.G.W. l978. Photoperiod and germination: a review. Presented at BCFS Reforestation/Research Div. Tech. Mtg, Jan. l978. 4p.

Edwards, D.G.W. l979. Collection, processing, storage and testing of Abies seed: a state-of-the-art review. Paper presented at the True Fir Management Cooperative Symposium on Regeneration and Management of Young True Fir Stands, Redding, Calif. May l979. 43p.

Edwards, D.G.W. 1984. (Chairman). B.C. Ministry of Forests/Canadian Forestry Service Joint Cone and Seed Committee, Cone and seed research needs and priorities. Report presented to the Joint Cone and Seed Comm. Management Steering Comm. 9p.

Edwards, D.G.W. 1985. Forest Tree Seed Certification under the OECD scheme in Canada 1984–1985. Report presented at the 1985 Meeting of OECD Designated Authorities, Paris, France. 5p. plus appendix.

Edwards, D.G.W. 1985. Operation of the OECD scheme in Canada. Report presented at the 1985 Meeting of OECD Designated Authorities, Paris France. 4p.

Edwards, D.G. 1986. Report on seed drying tests made at Pine Ridge Seed Processing Centre, Alberta, April 1986. June 1986. 14p.

Edwards, D.G.W. 1986. EEC import restriction of tree seeds. Briefing Note for the Associate Deputy Minister, Dept. of Agriculture. Pacific Forest. Cent., Nov. 1986. 2p.

Edwards, D.G.W. 1987. Progress Report—Western white pine germination research. Report presented to the Western Forest and Range Council Meeting, Langley, B.C. March 1987. 9p.

Edwards, D.G.W. 1987. Forest Tree Seed Certification under the OECD scheme in Canada 1986–1987. Report presented at the 1987 Meeting of OECD Designated Authorities, Paris, France. 3p.

Edwards, D.G.W. 1989. Forest Tree Seed Certification under the OECD scheme in Canada 1988–1989. Report presented at the 1989 meeting of OECD Designated Authorities, Paris, France. 3p.

Edwards, D.G.W. 1989. Report on Seed Technology Training Course, National Institute of Agricultural Botany, Cambridge, England, July 1989. 5p.

Edwards, D.G.W. Report on the First Annual Garry Oak Ecosystems Recovery Team Research Colloquium; Pacific Forestry Centre (PFC), Victoria; March 28, 2003.

Edwards, D.G. and D.W. Taylor. 1988. Report on seed drying tests made at Surrey Seed Centre, BC, March 1987. Mar 1988. 10p. (plus appendix).

Pollard, D.F.W. and D.G.W. Edwards. 1981. Seeds Act of Canada: Reasons for forest tree seeds regulations. To accompany Draft 3 of Proposed Forest Tree Seeds Regulations, circulated Canada-wide. 1p.

Pollard, D.F.W., D.G.W. Edwards and B.S.P. Wang. l98l. Canada Seeds Act: Forest Tree Seeds Regulations and Schedules. Four drafts developed in collaboration with Petawawa Nat. For. Instit. Draft l June l980, l0p.; draft 2, Aug l980, l0p.; draft Schedule A, Oct. l980, l6p.; draft 3, Jan l98l, 9p.; draft 4, Sept. 1982; draft 5, June 1984; draft 6, July 1985.

c. Special Presentations

Edwards, D.G.W. 1977. Separation of Abies seeds by flotation. Proc. Assoc. Offic. Seed Analysts/Soc. Commerc. Seed Technologists Ann. Mtg. Amherst, Mass. 6p.

Edwards, D.G.W. 1977. Upgrading seedlots and other work in progress at the Canadian Forestry Service, Pacific Forest Research Centre. West. For. Tree Seed Counc. Ann. Mtg. Portland, Oregon. 11p.

Edwards, D.G.W. 1978. Germination after redrying stratified Abies seeds. West. For. Tree Seed Counc. Ann. Mtg. Corvallis, Oregon. 4p.

Edwards, D.G.W. 1982. Tree seed sampling. West. For. Tree Seed Counc. Workshop. Tacoma, Wash. 3p.

Edwards, D.G.W. 1984. The IDS seed sorting process. West. For. and Range Seed Counc. Ann. Mtg. Portland, Or: 5p.

Edwards, D.G.W. 1984. Upgrading conifer seedlots by means of the IDS flotation-separation method. Assoc. Offic. Seed Analysts/Soc. Commerc. Seed Technologists Ann. Mtg. Boise, Idaho 9p.

Edwards, D.G.W. 1985. Special pre-chilling techniques for tree seeds. Assoc. Offic. Seed Analysts/Soc. Commerc. Seed Technologists Sympos. “Major seed problems in forestry,” Virginia. 15p. plus slides. (Invited presentation).

Edwards, D.G.W. 1985. Use of the IDS seed sorting method on BC conifers. Brit. Columbia Nurseryman’s Ann. Mtg. Duncan, B.C.. 4p.

Edwards, D.G.W. 1985. Seed research update. West. For. and Range Seed Counc. Ann. Mtg. Portland, Oregon. 3p.

Edwards, D.G.W. 1985. Proposals for changes to the AOSA Seed Testing Rules. Submitted to Assoc. Offic. Seed Analysts/Soc. Commerc. Seed Technologists Ann. Mtg., Davis, Ca. 11p.

Edwards, D,G,W. 1986. Effect of compound stratification on the germination of western white pine. Assoc. Offic. Seed Analysts/Soc. Commerc. Seed Technologists Ann. Mtg. Minneapolis, Minn. 7p.

Edwards, D.G.W. 1987. Current seed research in Canada. Invited Seminar, Dept. Forest Genetics, Swedish University of Agricultural Sciences, Umea, Sweden.

Edwards, D.G.W. 1988. Proposals for changing the Purity Test for conifer seeds. Submitted to Internat. Seed Test. Assoc. For. Tree and Shrub Seed Comm. Workshop. Macon, Ga. 6p.

Edwards, D.G.W. 1988. Observations on Table 6A (Procedures for tetrazolium tests) and Preparation and Evaluation Guides. Submitted to ISTA-FTSSC Workshop, Macon, Ga. 6p.

Edwards, D.G.W. 2002. Breaking dormancy in tree seeds with special reference to firs (Abies species)-the 1.4x solution. 44th Annual Horticulture Growers’ Short Course, together with the Pacific Agriculture Show; February 7–9, 2002; TRADEX, Abbotsford, British Columbia.

Edwards, D.G.W. 2002. Proposal to update the World Directory of Tree Seed Workers. Presented at the IUFRO Research Group 2.09.00 (Seed Physiology and Technology) International Symposium, “Tree Seeds 2002,” Chania, Crete; Sept. 11–15, 2002.

Edwards, D.G.W. 2002. Proposal to create a Global Bibliography of Tree Seeds. Presented at the IUFRO Research Group 2.09.00 (Seed Physiology and Technology) International Symposium, “Tree Seeds 2002,” Chania, Crete; Sept. 11–15, 2002.

Edwards, D.G.W. 2002. Seed-to-wing attachments in important members of the Pinaceae with additional observations on members of the Cupressaceae and Taxodiaceae. PowerPoint presentation, IUFRO International Symposium “Seed 2002,” Sept. 11–15, 2002, Chania, Crete.

Edwards, D.G.W. 2006. Reasons for revising pure seed definitions for important coniferous species—Pinaceae, Cupressaceae, Taxaceae, Taxodiaceae. PowerPoint presentation, ISTA For. Tree and Shrub Seed Comm. Seminar, Sept. 12–15, 2006, Verona, Italy.

Edwards, D.G.W. 2003. Breaking dormancy in tree seeds with special reference to firs (Abies species)—the 1.4x solution. Sixth Biennial Exotic Conifer Conference and Field Day; September 9–10, 2003; Clinton, Iowa and Fulton, Illinois.

Edwards, D.G.W. 2003. Breaking dormancy in tree seeds with special reference to firs (Abies species)—the 1.4x solution. Sixth International Christmas Tree Research and Extension Conference; September 14–19, 2003; Hendersonville and Boone, North Carolina.

Edwards D.G.W., Y.A. El-Kassaby and M.D. Meagher. Biology and genetics of Garry oak (Quercus garryana). Presented at the International Garry Oak Symposium; University of Victoria; Victoria, British Columbia; May 1999.

Edwards, D.G.W. and C.L. Leadem. 1995. The effect of temperature cycling on germination in four conifers. Paper presented at the IUFRO XX World Congress, Tampere, Finland, Aug. 95. 12p.

Pollard, D.F.W. and D.G.W. Edwards. 1981. Outline of cone and seed studies conducted at the Pacific Forest Research Centre. Can. For. Serv. Workshop on Cone and Seed Research, Pac. For. Res. Cent., Victoria.