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Evaluating the quality of Douglas-fir (Pseudotsuga menziessii (Mirb.) Franco) seedlings : a comparison of some current and proposed evaluation methods

Creator:: McCreary, Douglas D.
Abstract:: The physiological condition of tree seedlings at the time they are planted can have a profound impact on their subsequent field performance. Damaged or low vigor seedlings have a much greater chance of dying in the field, or at best, of growing slowly during their initial establishment period. Several methods...
Resource Type:: Dissertation

Frost hardiness of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings raised in three nurseries

Creator:: Schuch, Ursula K.
Abstract:: Two-year-old Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] seedlings of two seed sources raised in three nurseries in Oregon and Washington were tested for differences in frost hardiness from September 1985 to March 1986. The objective of the study was to determine whether nursery location had an influence on seedling acclimation, deacclimation...
Resource Type:: Masters Thesis

The starch content of roots and the osmotic concentration of expressed xylem sap as predictors of Douglas-fir seedling quality

Creator:: Forry, Keith R.
Abstract:: The goal of this study was to evaluate the ability of two seedling quality evaluation methods to predict the field survival of Douglas-fir (Pseudotsuga menziesii) seedlings. The starch reserves in seedlings have been suggested as a possible predictor of seedling quality. Starch reserves have been shown to decrease during cold...
Resource Type:: Masters Thesis
Full Text:: seedling quality evaluation methods to predict the field survival of Douglas-fir (Pseudotsuga menziesii

Ionic balance and the constituent organic acids of current-year foliage of western redcedar, western hemlock, and Douglas-fir seedlings

Creator:: Graff, Joseph Edward
Abstract:: Western redcedar, western hemlock, and Douglas-fir seedlings were transplanted into pots in one of two soils representative of high and low levels of available NO3 (and total N). The soils were collected from sites at Cascade Head (Oregon Coast) and Wind River (Washington Cascades). Whole plant and component relative dry...
Resource Type:: Dissertation

Comparison of 1-1 stock with 2-0 stock

Creator:: Carson, Homer
Resource Type:: Undergraduate Thesis

Certain factors affecting establishment of the Douglas fir (Pseudotsuga taxifolia (Lamb.) Britt.) seedlings

Creator:: Owen, Herbert Elmer, 1925-
Resource Type:: Masters Thesis
Full Text:: Thesis is presented_ -Ap.iJ ________ T Fir (PsedotsugataxioJ.. (Lamb.) Britt.) Seedling Abstract

Racial variation in seedling development of Douglas fir, Pseudotsuga menziesii (Mirb.) Franco

Creator:: Owen, Herbert Elmer, 1925-
Resource Type:: Dissertation
Full Text:: Racial Variation in Seedling Development of Douglas Fir

The influence of seedbed microenvironments upon the establishment of Douglas fir (Pseudotsuga menziesii (Mirb.) Franco)

Creator:: Hermann, Richard K.
Resource Type:: Dissertation
Full Text:: . -. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 26. One -year old Douglas fir seedling killed by Page several -month old heat injuries in

The influence of ectomyorrhizae on drought tolerance characteristics of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) seedlings

Creator:: Dosskey, Michael G.
Abstract:: Douglas-fir seedlings were inoculated with different species of ectomycorrhizae-forming fungi in order to test the concept that ectomycorrhizae enhance the drought tolerance of seedlings and to investigate the mechanisms responsible for this effect. Seedlings were transplanted at age 6 to 8 weeks into pots containing pasteurized loam soil and inoculated...
Resource Type:: Dissertation
Full Text:: , fertilizer P concentration, and seedling age when transplanted. 18. Leaf area of 6-month-old Douglas-fir

The effects of nursery incurred tap-root wounds on growth of Douglas-fir seedlings

Creator:: Whiting, Elizabeth Cameron
Abstract:: Tap-root wounds frequently occur on seedlings during lifting in forest tree nurseries. Data are needed to clarify guidelines for culling wounded seedlings. Two-year-old bareroot Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings were wounded by hand on the tap-root to lengths of either 3/8, 1, or 3 inches. Wounded seedlings were used...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Evaluating the quality of Douglas-fir (Pseudotsuga menziessii (Mirb.) Franco) seedlings : a comparison of some current and proposed evaluation methods

Frost hardiness of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings raised in three nurseries

The starch content of roots and the osmotic concentration of expressed xylem sap as predictors of Douglas-fir seedling quality

Ionic balance and the constituent organic acids of current-year foliage of western redcedar, western hemlock, and Douglas-fir seedlings

Comparison of 1-1 stock with 2-0 stock

Certain factors affecting establishment of the Douglas fir (Pseudotsuga taxifolia (Lamb.) Britt.) seedlings

Racial variation in seedling development of Douglas fir, Pseudotsuga menziesii (Mirb.) Franco

The influence of seedbed microenvironments upon the establishment of Douglas fir (Pseudotsuga menziesii (Mirb.) Franco)

The influence of ectomyorrhizae on drought tolerance characteristics of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) seedlings

The effects of nursery incurred tap-root wounds on growth of Douglas-fir seedlings

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