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Creator:: Helgerson, O. T.
Abstract:: Red alder (Alnus rubra Bong.), scotch broom (Cytisus scoparius L.) and snowbrush (Ceanothus velutinus Dougi ) were planted under precommercially thinned Douglas-fir (Pseudotsuga iuenziesil Mirb Franco) in the central Oregon Cascades. Plug grown red alder had significantly greater survival than all wildling propagules except for the second broom planting Browsing...
Resource Type:: Dissertation

Creator:: Helgerson, O. T., Wearstler, Kenneth A., Bruckner, Werner K., and Oregon State University. Forest Research Laboratory
Abstract:: The effects of naturally shaded microsites on survival and height growth of natural and planted seedlings were evaluated after an initial shelterwood harvest in the eastern Siskiyou Mountains of southwestern Oregon. After 2 years, the probabilities of survival for planted Douglas-fir (84 percent) and ponderosa pine (56 percent) were significantly...
Resource Type:: Technical Report
Full Text:: 5Do 5L) FORE/ T REIEARCH LABORATORY REJERRCH flOTE69

Creator:: Hobbs, S. D. (Stephen D.), Helgerson, O. T., Southwest Oregon Forestry Intensified Research Program, and Oregon State University. Forest Research Laboratory
Resource Type:: Conference Proceeding
Full Text:: minimize regeneration damage D. H. Lysne S. D. Teach O. T. Helgerson L. Brush K. A. Wearstler, Jr

ScholarsArchive@OSU