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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:: plant dry weight that was foliage was noted. The failure of the range of environments tested to affect

Creator:: Lavender, Denis P. and Oregon State University. Forest Research Laboratory
Abstract:: Perennial woody plants have a complex annual cycle keyed to the environment. Temperate plants have an annual dormant period commonly broken by exposure to low temperatures, although daily photoperiods of 16 hours or longer may partially substitute for the chilling. Shoot growth in the spring is normally stimulated by rising...
Resource Type:: Technical Report
Full Text:: CHILLING REQUIREMENTS 5 LIGHT 5 PHOTOPERIOD B TEMPERATURE 6 Air Temperature 7 Soil Temperature 8 PLANT

Creator:: Newton, Michael, 1932-, Starker, Bruce, Blanchard, Gary, and Oregon State University. Forest Research Laboratory
Abstract:: Douglas-fir seedlings were planted in 1963 near Burnt Woods, Oregon, on land covered with grass, salal, or bracken to test the effects of terracing on regeneration. After 9 years, survival was best (about 95 percent) among seedlings machine-planted along the centers of the terraces and was better on south than...
Resource Type:: Technical Report
Full Text:: Terrace Planting in the Oregon Coast Range Some Toad

Creator:: Filip, Gregory M., Kanaskie, Alan, Kavanagh, Kathleen L., 1955-, Johnson, Greg, Johnson, Randy (G. Randy), Maguire, Douglas A. (Douglas Alan), and Oregon State University. Forest Research Laboratory
Abstract:: For the past ten years, Douglas-fir on the Oregon and Washington coast has shown a progressive decrease in height and diameter increment as a result of Swiss needle cast, which is caused by Phaeocryptopus gaeumannii. In this contribution, we discuss the effects of silvicultural operations on Swiss needle cast and...
Resource Type:: Technical Report
Full Text:: cast ............................................. 10 LIST OF FIGURES Figure 1. In the Coast Range

Creator:: Oregon State University. Forest Research Laboratory, Walstad, John D., and Dost, Frank N.
Resource Type:: Technical Report
Full Text:: Northwest Forest and Range Experiment Station, Corvallis; and Sheldon A. Wagner, professor, Department of

Creator:: Hann, David W., Wang, Chao-huan, and Oregon State University. Forest Research Laboratory
Abstract:: Models of stand growth and yield must include an estimate of mortality. For individual-tree/distance-independent growth-and-yield models. it is necessary (1) to predict the probability of death of individual trees and (2) to keep stand projections within reasonable biological limits (e.g., the maximum basal area that the stand can achieve). In...
Resource Type:: Technical Report
Full Text:: limited to the potential range of probabilities of mor- tality. "With the selection of the proper set of

Creator:: Schmitz, Richard F., Rudinsky, J. A. (Julius Alexander), 1917-, and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: research entomologist with the Forestry Sciences Laboratory, Inter- mountain Forest and Range Experiment

Creator:: Loucks, Donna M., Knowe, Steven A. (Steven Alan), 1954-, Shainsky, Lauri J., Pancheco, Alex A., and Oregon State University. Forest Research Laboratory
Abstract:: This annotated bibliography was compiled to provide a comprehensive list of sources on the ecological factors that affect forest regeneration. Abstracts from 494 publications are indexed by author, species, and subject, and are arranged into 4 major sections. Topics include the effects of biotic factors, abiotic factors, and stand and...
Resource Type:: Technical Report
Full Text:: , animals, mycor- rhizae, pathogens, and plant associations; and stand and site history, including

Creator:: Oregon State University. Forest Research Laboratory, Gholz, Henry L., Grier, C. C., Campbell, A. G., and Brown, A. T.
Abstract:: Reliable estimates of plant biomass and leaf surface area are essential for studying primary production, nutrient cycling, hydrology, wildlife management, and fire. This paper presents equations that can be used to make such estimates for most plant species-trees, shrubs, and herbs-dominant in western and central Oregon.' We also document the...
Resource Type:: Technical Report
Full Text:: - ure, a researcher in the field can estimate average plant weights and leaf areas for a wide range of

Creator:: Olsen, Eldon D., Keough, David S., LaCourse, Diane K., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: Proposed Oregon Forest Practices Rules on Industrial Forest Lands in the Oregon Coast Range: A Case Study

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