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Creator:: Thomas, Byron R.
Abstract:: Relationships between soil-water stress and plant-moisture stress were studied with respect to soil classification and cambial activity in Douglas-fir. The study sites were forested with Douglas-fir and located in McDonald Forest and near Marys Peak in the Oregon Coast Range. Soil-water depletion was followed by the use of gypsum blocks...
Resource Type:: Dissertation
Full Text:: ACTIVITY TN DOTIGT,ASFTR Redacted for Privacy Abstract approved: Gerald H. Simonson Relationships between

Creator:: Leininger, Wayne C.
Abstract:: A three-year investigation was conducted during 1980-1982 to evaluate the potential of using herded sheep as a silvicultural tool to suppress brush in Douglas-fir (Pseudotsuga menziesii) plantations of Oregon's Coast Range. Sheep browsing of Douglas-fir was highest in May soon after bud break. Averaged over the 2 years of grazing,...
Resource Type:: Dissertation
Full Text:: . Beschta, W. H. Emmingham, and H. F. Horton. Dr. W. C. Krueger was also very helpful during my tenure at

Creator:: Irgens-Moller, Helge
Resource Type:: Dissertation
Full Text:: initial phases of the studies; to Dr. Frank H. Smith for valuable advice on the presentation of the data

Creator:: Starbuck, Christopher J.
Abstract:: Experiments were conducted to determine if the plagiotropic growth habit of rooted cuttings of Douglas-fir might result from a system favoring the accumulation of indoleacetic acid in the adaxial side of the shoot in response to vertical placement. Actively growing excised branch terminals were subjected to gravitational disorientation to determine...
Resource Type:: Dissertation
Full Text:: members of my graduate committee: Drs. L. H. Fuchigami, P. J. Breen, W. S. McGuire, R. S. Quatrano

Creator:: Bhella, Harbans Singh
Abstract:: The relation of bud and cambial activity to root initiation and elongation in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stem cuttings was studied through two successive growth cycles. Stem cuttings of current season's growth were taken periodically from field-grown Douglas-fir trees to determine: (1) origin and development of root initials; and...
Resource Type:: Dissertation
Full Text:: H O O « H W U W 60 - LSD . 01 / - 50

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