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Creator:: Zaerr, Joe B., Lavender, Denis P., and Oregon State University. Forest Research Laboratory
Abstract:: Results reported here are from a large study designed to evaluate the effects of certain nursery procedures on subsequent survival of Douglas-fir seedlings. The effects of storage conditions and lifting dates were reported elsewhere (9). The determination of the optimum size of seedling for planting on different sites has been...
Resource Type:: Technical Report
Full Text:: Size and Survival of 270 Douglas-Fir Seedlings Joe B. Zaerr Denis P. Lavender Research Paper 32

Creator:: Heiner, Terry Charles, 1941-, Lavender, Denis P., and Oregon State University. Forest Research Laboratory
Abstract:: Although the Douglas-fir region of the northwestern United States and British Columbia is frequently considered to have a common silviculture, obstacles to successful regeneration of the species range from competing vegetation and mammals on the mesic sites to extreme drought and heat on the xeric southerly exposures in northern California...
Resource Type:: Technical Report
Full Text:: differences by seed source of response to drought stress of Douglas-fir seedlings under laboratory and

Creator:: Zaerr, Joe B., Lavender, Denis P., and Oregon State University. Forest Research Laboratory
Abstract:: The Dwight L. Phipps State Forest Nursery at Elkton annually supplies 22 million 2-0 Douglas-fir seedlings to Oregon land managers. Some managers report excellent success in planting, but others report failures, particularly when planting late in the season. In some instances poor survival seemed to be related to storage. Physiological...
Resource Type:: Technical Report
Full Text:: PLANTING 2-0 DOUGLAS-FIR IN OREGON A PRELIMINARY REPORT Joe. Zaerr Assistant Professor of Forest

Creator:: Hermann, Richard K., Ching, Kim K., and Oregon State University. Forest Research Laboratory
Abstract:: Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) is one of the world's most important and valuable timber trees. Its natural distribution in North America resembles an inverted V with uneven sides. From the apex in British Columbia, the western half extends along the Pacific mountain ranges into California for about 2,200 km...
Resource Type:: Technical Report
Full Text:: of Distinguishing Coastal from Interior Douglas Fir Seed." British Columbia Lumberman 44:26-30

Creator:: Lavender, Denis P., Overton, W. Scott, and Oregon State University. Forest Research Laboratory
Abstract:: The effects of a range of thermoperiods and soil temperatures upon growth of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings were studied. The seeds, of varieties glauca and menziesii, came from eight widely separated areas. Plants from both varieties made maximum growth with soil and air temperatures between 18 and 24...
Resource Type:: Technical Report
Full Text:: and root growth of seedlings grown from Douglas-fir seed collected in Arizona and British Columbia

Creator:: Wright, Ernest, 1899- and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: ; to K. K. Ching, R. K. Hermann, and D. P. Lavender for Douglas-fir seed; to personnel of the U.S

Creator:: Del Rio, Ernest, Berg, Alan B., and Oregon State University. Forest Research Laboratory
Abstract:: Growth was assessed for Douglasfir reproduction which had established naturally beneath three intensities of overstory thinning in a 65-year-old stand of Douglas-fir on the east side of the Oregon Coast Range. The age of advanced reproduction ranged from 4 to 15 years. Understory environments were described in terms of sunlight,...
Resource Type:: Technical Report
Full Text:: Douglas- fir reproduction which had estab- lished naturally beneath three in- tensities of overstory

Creator:: Berg, Alan B. and Oregon State University. Forest Research Laboratory
Abstract:: This bibliography lists selected references useful to the forester in managing young forests in the Douglas-fir region. The references pertain to those management activities that are carried on in the forest from stand regeneration until final harvest. Emphasis is on silvicultural, operational, and economic aspects of management, but social and...
Resource Type:: Technical Report
Full Text:: Douglas-Fir Region Alan B. Berg Research Paper 29 May 1976 Forest Research Laboratory School of

Creator:: Faqir Mohammad Khan, Bell, John F., Berg, Alan B., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: HEIGHTS IN YOUNG DOUGLAS-FIR TREES' Faqir Mohammad Khan Graduate Student John F. Bell Professor of

Creator:: Dykstra, Dennis P. and Oregon State University. Forest Research Laboratory
Abstract:: This report supplements Research Bulletin 18 (1975) of the Forest Research Laboratory, School of Forestry, Oregon State University. Bulletin 18 summarized analyses of data for the first field season of the Pansy Basin Study. This Bulletin extends those analyses to the second, and final, field season. Time-study observations during the...
Resource Type:: Technical Report
Full Text:: successful tests of shelterwood harvesting in the Douglas-fir region (15), have led to an increase in partial

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