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REFERENCES

  • Allen, G. S. (1961). Testing Douglas fir seed for provenance. Proc. int. Seed Test. Ass., 26, 388.
  • Barker, K. E. (1957). University of California System of Producing Healthy Container Plants. Manual 23, California Agricultural Experiment Station, Berkeley , California.
  • Bennet, E. (1964). Historical perspectives in genecology. Rep. Scott. Pl. Breed. Stn, 1964, 49.
  • Brink, V. C. & Farstad, L. (1949). Forest advance in north and central British Columbia. Can. Fld Nat., 37.
  • Burley, J. (1966). Genetic variation in seedling development of Sitka spruce Picea sitchensis (Bong). Carr. Forestry, 39, 68.
  • Chapman, J. D. (1952). The climate of British Columbia. 5th Conf. Colum. Nat. Resource, 1952, pp. 47.
  • Chapman, L. J. & Brown, D. M. (1966). The Climates of Canada for Agriculture. The Canada Land Inventory report No. 3. Canada Department of Forestry and Rural Development.
  • Ching, K. K. & Bever, D. (1960). Provenance study of Douglas fir in the Pacific northwest region. Silvae Genet., 9, 11.
  • Connor, A. J. (1949). The Frost-free Season in British Columbia, pp. 20. Meteorological Division, Department of Transport, Toronto .
  • Czabator, F. J. (1962). Germination value: an index combining speed and completeness of pine seed germination. For. Sci., 8, 386.
  • Diver, C. (1940). The problem of closely related species living in the same area. In: The New Systematic. (Ed. by J. S.Huxley). Oxford University Press, London .
  • Eastham, J. W. (1949), Observations on the flora of the southern Rocky Mountain Trench in British Columbia. Trans. R. Soc. Can., 43, 1.
  • Fowler, D. P. (1966). A new spruce hybrid-Picea schrenkiana×P. glauca. Second Genetics Workshop of the Society of American Foresters. Research paper NC-6, North Central Forestry Experiment Station, U.S. Forest Service, 4447.
  • Gardiner, A. S. & Jeffers, J. N. R. (1963). Analysis of the collective species Betula alba on the basis of leaf measurements. Silvae Genet., 11, 156.
  • Garman, E. H. (1957), The Occurrence of Spruce in the Interior of British Columbia. Technical publication, T 49. Department of Lands and Forests, British Columbia Forest Service.
  • Griffith, B. C. (1940), In a symposium on spruce regeneration in Canada, For. Chron., 16, 83.
  • Hanover, J. W. (1963). Geographic variation in ponderosa pine leader growth. For. Sci., 9, 86.
  • Hansen, H. P. (1947). Postglacial forest succession, climate and chronology in the Pacific Northwest. Trans. Am. Phil. Soc, 37, 1.
  • Hansen, H. P. (1955), Postglacial forests in South Central and central British Columbia. Am. J. Sci., 253, 640.
  • Heikinheimo, O. (1954). Taimitarkan Maantieteelinen sijainti, siomonen alkupera ja istutuskaudet. Geographische lage der Baumschule, Herkunft des Samens und Zeit der Pflanzung. Acta for. fenn., 61, 9.
  • Heslop-Harrison, J. (1964). Forty years of genecology. In: Advances in Ecological Research, Vol, 2 (Ed. by J. B, Cragg), pp, 159247. Academic Press, London and New York .
  • Heusser, C. J. (1960). Late-pleistocene Environments of North Pacific America, pp. 308. Special publication No, 35, American Geographical Society.
  • Horton, K. W. (1959). Characteristics of subalpine spruce in Alberta, Technical Note No, 76. Forest Research Division, Canada Department of Northern Affairs and National Resources.
  • Irgens-Moller, H. (1958). Genotypic variation in the time of cessation of height growth in Douglas fir. For. Sci., 4, 325.
  • Irgens-Moller, H. (1962). Genotypic variation in photoperiod response of Douglas fir seedlings. For. Sci., 8, 360.
  • Jeffers, J. W. R. (1965), The Study of Variation in Taxonomic Research. Statistics section paper No. 90, British Forestry Commission.
  • Jentys-Szaferowa, J. (1959). A graphical method of comparing the shapes of plants. Rev. Polish Acad. Sci., 4, 9.
  • Karschon, R. (1949). Untersuchungen Uber Die Physiologische Variabilität Von Fohrenkeimlingen Autochtoner Populationen. Mitt. schweiz. Anst. forstl. VersWes., 26, 205.
  • Kozlowski, T. T. (1957). Seasonal height growth of conifers. For. Sci. 3, 61.
  • Krajina, V. J. (1965). Ecology of Western North America, Vol. I. Department of Botany, University of British Columbia.
  • Langlet, O. (1936), Studien uber die physiologische Variabilitat der Kiefer und deren Zusammenhang mit dem Klina. Beitrage zur Kenntnis der Okotypen von Pinus Sylvestris L. Meddel. Skogsfors Anst. Exkurshed., 29, 219.
  • Langlet, O. (1959). A cline or not a cline—a question of Scots pine. Silvae Genet., 8, 13.
  • Langlet, O. (1962). Ecological variability and taxonomy of forest trees. In: Tree Growth (Ed. by T. T.Kozlowski). Ronald Press Co., New York .
  • Langlet, O. (1953a). Patterns and terms of intra-specific ecological variability. Nature. Lond., 200, 347.
  • Langlet, O. (1963b). Practical Results and Current Problems in Provenance Research in Sweden, pp. 12. Report of world consultation on forest genetics and tree improvement (Section 3), Stockholm , August 1963, F.A.O. Rome .
  • Little, E. L. (1953a). Check List of the Native and Naturalized Trees of the United States (Including Alaska). Agricultural Handbook No. 41. Superintendent of Documents, Washington , D.C. .
  • Little, E. L. (1953b). A natural hybrid in Alaska. J. For., 51, 745.
  • Little, E. L. & Pauley, S. S. (1958). A natural hybrid between black and white spruce in Minnesota. Am. Midi. Nat. 60, 202.
  • McKinnon, F. S. (1938). The Relative Importance of White Spruce in the Forests of the Upper braser Valley. Research note No. 5. British Columbia Forest Service.
  • Mitchell, A. F. (1965). The growth in early Ufe of the leading shoot of some conifers. Forestry, 38, 121.
  • Morris, W. G., Silen, R. R. & Irgens-Moller, H. (1957). Consistency of bud bursting in Douglas fir. J. For., 55, 208.
  • Moller-Olsen, C., Simak, M. & Gustafsson, A. (1956), Germination analyses by the X-ray method: Picea abies (L.) Karst. Meddn St. SkogsforskInst., 46, 1.
  • Myers, O. & Bormann, F. H. (1963). Phenotypic variation in Abies balsamea m response to altitudmal and geographic gradients. Ecology, 44, 429.
  • Nienstaedt, N. (1967). Chilling requirements in seven Picea species. Stlvae Genet., 16, 65.
  • Nitsch, T. P. (1963) The mediation of climatic effects through endogenous regulating substances. In: Environmental Control of Plant Growth (Ed. by L. T.Evans). Academic Press, New York .
  • Olson, T. S. Sterns, F. W. & Nienstaedt, H. (1959). Eastern Hemlock Seeds and Seedlings: Response to Photoperiod and Temperature, Bulletin 620. Connecticut Agricultural Experiment Station, New Haven , U.S.A .
  • Orr-Erwing, A. L. (1966). Inter- and intraspecific crossing in Douglas fir (Pseudotsuga menziesii (Mirb.) Franco). Silvae Genet., 15, 121.
  • Parker, T. (1961). Cold resistance in woody plants. Bot. Rev., 29, 123.
  • Pauley, S. S. & Perry, T. O. (1954). Ecotypic variation of the photoperiodic response in Populus. J. Arnold Arbor., 25, 167.
  • Raup, H. M. (1945). Forests and gardens along the Alaska highway. Geogr. Rev., 35, 22.
  • Recknagel, A. B. (1939). Some notes on the upper Fraser River spruce of British Columbia. J. Forestry, 37, 656.
  • Roche, L. (1965). A Note on Spruce Branching Habit and Bark Type, pp. 4447. B.C. Forest Service Research Review, for year ended March 1965.
  • Rowe, J. S. (1959). Forest Regions of Canada, Bulletin 123. Canada Department of Northern Affairs and National Resources Forestry Branch.
  • Ruby, J. L. (1967). The correspondence between genetic, morphological, and climatic variation in Scots pine. Silvae Genet., 16, 50.
  • Stanek, W. (1966). Occurrence, growth, and relative value of todgepole pine and Engelmann spruce in the interior of British Columbia. Ph.D. thesis, University of British Columbia.
  • Stebbins, G. L. (1950). Variation and Evolution in Plants. Columbia University Press, New York .
  • Taylor, T. M. C. (1959). The taxonomic relationship between Picea glauca (Moench) Voss and P. engelmannii Parry. Madrono, 15, 112.
  • Timofeeff-Ressovsky, N. (1940). Mutations and geographical variations. In: The New Systematics (Ed. by J. S.Huxley). Oxford University Press, London .
  • Turesson, C. (1923). The scope and impact of genecology. Hereditas, 4, 171.
  • United States Naval Observatory (1946). Tables of Sunrise, Sunset and Twilight. Supplement to the American Ephemeris. United States (government Printing Office, Washington .
  • Vaartaja, O. (1959). Evidence of photoperiodic ecotypes in Trees. Ecol. Monogr., 29, 91.
  • Van der Veen, R. (1951). Influence of day length on the dormancy of some species of the genus Populus. Physiologia Pl. 4, 35.
  • Vegis, A. (1963). Climatic control of germination, bud break, and dormancy. In: Environmental Control of Plant Growth (Ed. by L. T.Evans). Academic Press, New York .
  • Wareing, P. F. (1950a). Growth studies in woody species. I: Photoperiodism in first-year seedlings of Pinus silvestris. Physiologia Pl. 3, 258.
  • Wareing, P. F. (1950b). Growth studies in woody species II: Effect of day length on shoot-growth in Pinus silvestris after the first year: Physiologia Pl. 3, 300.
  • Wareing, P. F. (1950c). Extension and radial growth in trees. Nature. Lond., 166, 278.
  • Wareing, P. F. (1951). Growth studies in woody species III. Further photoperiodic effects in Pinus silvestris. Physiologia Pl. 4, 41.
  • Wareing, P. F. (1956). Photoperiodism in woody plants. A. Rev. Pl. Physiol, 7, 191.
  • Wareing, P. F. (1966). The physiologists approach to tree growth. In: Physiology in Forestry (Ed. by R. W. V.Palmer). Supplement to Forestry, 39, 7.
  • Watts, W. A. & Wright, H. E. (1966). Late-Wisconsin pollen and seed analysis from the Nebraska sandhills. Ecology, 47, 202.
  • Whitford, H. N. & Craig, R. D. (1918). Forests of British Columbia, Commission of Conservation, Ottawa , 1918.
  • Wiersma, J. H. (1958). De Betckenis van de Fotoperiodiciteit voor de praktijik van de Bosbouw. Ned. Boschb-Tijdschr. 30, 139.
  • Wright, J. W. (1955). Species crossability in spruce in relation to distribution and taxonomy. For. Sci., 1, 319.
  • Wright, J. W. & Bull, I. W. (1963). Geographic variation in Scotch pine. Silvae Genet., 12, 1.