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Creator:: Gerlach, J. P., Reich, P. B., Puettmann, Klaus J., and Baker, T.
Abstract:: Mortality from Armillaria root rot is a major concern of forest management. Field experiments were conducted in Minnesota to evaluate interspecific differential susceptibility and to assess whether density or species composition, specifically the proportion of conifers in a plot, influences seedling mortality from Armillaria spp. Seedlings of 10 tree species...
Resource Type:: Article
Full Text:: susceptibility (p < 0.0001); balsam fir (Abies balsamea(L.) Mill.), tamarack (Larix laricina (Du Roi) K. Koch

Creator:: Trummer, L. M., Hennon, P. E., Hansen, E. M., and Muir, P. S.
Abstract:: A model was developed to predict the severity of dwarf mistletoe (Arceuthobium tsugense (Rosendahl) G.N. Jones) in western hemlock trees (Tsuga heterophylla (Raf.) Sarg.) that developed within forests of Southeast Alaska that experienced near-catastrophic windthrow in the late 1800s. The model suggests that the degree of dwarf mistletoe severity on...
Resource Type:: Article
Full Text:: . 1996). Wildlife use of Can. J. For. Res.28: 1501–1508 (1998) © 1998 NRC Canada 1501 Received March

Creator:: Morrell, Jeffrey J.
Abstract:: The effect of various wood characteristics on decomposition of metham sodium to methylisothiocyanate in sixteen North American and Southeast Asian hardwoods and softwoods was investigated. While marked differences were noted in the degree of decomposition among some species, the relationship between decomposition and lignin content, extractive levels, wood pH, or...
Resource Type:: Article
Full Text:: AFFECTED BY WOOD SPECIES, TEMPERATURE, AND MOISTURE CONTENT1 Jefrey J. Morrell Assistant Professor

Creator:: Greber, Brian J.
Abstract:: In September 1991, the Bureau of Land Management asked the Secretary of the Interior to convene the Endangered Species Committee. The Bureau wanted permission to proceed with 44 timber sales In Oregon that the U.S. Fish and Wildlife Service had ruled would jeopardize the continued existence of the northern spotted...
Resource Type:: Technical Report
Full Text:: University, Corvallis. Special Publication 17. 20 p. JOHNSON, K.N., J.F. FRANKLIN, J.W. ThoMAS, and J

Creator:: Cornett, Meredith W., Puettmann, Klaus J., and Reich, Peter B.
Abstract:: There is concern that the conifer component of mixed conifer-deciduous forests in the Great Lakes region is on the decline, possibly the result of insufficient conifer regeneration. Limitations on conifer regeneration that occur during the first 18 months of seedling emergence and establishment were examined for Abies balsamea (L.) Mill....
Resource Type:: Article
Full Text:: –deciduous forests Meredith W. Cornett, Klaus J. Puettmann, and Peter B. Reich Abstract: There is concern

Creator:: Oregon State University. College of Forestry
Abstract:: Magazine of the OSU College of Forestry.
Resource Type:: Other
Full Text:: year, we received only about 30 p ercent of our total budgetary support from state funds. State funds

Creator:: Han, Kyung-Hwan, Gordon, Milton P., and Strauss, Steven H.
Abstract:: Many species of Populus, particularly cottonwoods of sections Aigeiros and Tacamahaca, remain recalcitrant to genetic transformation. We demonstrate that transgenic trees can be readily produced in several poplar genotypes using wild-type Agrobacterium rhizogenes. Hairy roots were produced in a variety of clones that included Populus trichocarpa Torr. & A. Gray,...
Resource Type:: Article
Full Text:: Agrobacterium rhizogenes Kyung-Hwan Han, Milton P. Gordon, and Steven H. Strauss Abstract: Many species of

Creator:: Doerr, Don R., Daley, P. Martin, and Byrne, Gregory G.
Abstract:: Internal controls have often been thought of as specific activities that are performed to ensure accounting transactions have been recorded properly and to ensure security over assets. This definition was supplemented in a previous monograph on internal controls, "Accounting Controls for a Forest Products Firm," published in January 1981 ....
Resource Type:: Technical Report
Full Text:: Number 39 December 1 993 Don R. Doerr P. Martin Daley Gregory G. Byrne Don R. Doerr is the

Creator:: Rui, Chen and Morrell, Jeffrey J.
Abstract:: Studies of the effects of various chemicals on fungal growth are difficult to perform on filamentous fungi because of the difficulty of observing the protoplasm through the rigid hyphal wall, and because most activity occurs in the region near the hyphal tip. However, hyphae can be exposed to certain enzymes...
Resource Type:: Article
Full Text:: -DEGRADING FUNGI Chen Rui Graduate Research Assistant and Jeflrey J. Morrell Assistant Professor

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