Index Catalog // ScholarsArchive@OSU

Physiological and morphological responses to water deficit in seedling progeny of four populations of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco)

Creator:: Joly, Robert J.
Abstract:: The relationships among total water potential (psi), osmotic potential ([pi]), pressure potential (P), and relative water content (R*) were determined during four consecutive soil drying cycles for shoots of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) seedlings. In each cycle, seedlings were sampled for pressure-volume determinations as soil water was depleted gradually...
Resource Type:: Dissertation

Survival and some physiological aspects of tissue cultured cells from Douglas-fir (Pseudotsuga menziesii Mirb. (Franco)) and a poplar hybrid after freezing to liquid nitrogen temperature

Creator:: Binder, Wolfgang Dieter
Abstract:: Cell aggregate size in both Douglas-fir and poplar suspension cultures was reduced by the addition of the chelator compounds EDTA and CDTA at concentrations under 100 ppm. Reduced cell aggregate size increased growth efficiency of suspension cultures of both species. Cell aggregates 550 j.z. or smaller in size were used...
Resource Type:: Dissertation

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:: Quality Abstract approved: Joe B. Zaerr The goal of this study was to evaluate the ability of two

Patterns of growth and seasonal changes in the concentrations of abscisic acid and indoleacetic acid in roots of western hemlock

Creator:: Brown, Charles Joseph
Abstract:: The capacity for root growth and concentration of indole-3-acetic acid and abscisic acid in the roots of western hemlock seedlings was investigated. The root regenerating capacity (RRC) was defined as the increase in root length, greater than 5 mm, following a 28-day test period. RRC measurements over a two-year period...
Resource Type:: Masters Thesis
Full Text:: WESTEBN HEMLOCK Signature redacted for privacy.Abstract approved: - Joe B. Zaerr The capacity for root

Ionic balance and organic acids in western redcedar, western hemlock, and Douglas-fir seedlings grown in low- and high-N soils

Creator:: Graff, J. E., Hermann, Richard K., and Zaerr, J. B.
Abstract:: Seedlings of western redcedar (Thuja plicata Donn ex. D. Don), western hemlock (Tsuga heterophylla (Raf.) Sarg.), and Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) were transplanted into soils with low and high levels of available NO3 – (and total N). Current-year foliage was sampled after 10 weeks to determine the effect of...
Resource Type:: Article
Full Text:: . Zaerr Abstract. Seedlings of western redcedar (Thuja plicataDonn ex. D. Don), western hemlock (Tsuga

Effects of CO₂ enrichment during flowering and podfill on net photosynthesis, dry matter accumulation and yield of beans, Phaseolus vulgaris L.

Creator:: Gustafson, Steven Wayne
Resource Type:: Dissertation
Full Text:: BEANS, PHASEOLUS VULGARIS L. Abstract approved: ^^ _^ . Patricj^J. Breen Beans were grown

Early Selection for Improving Volume Growth in Coastal Douglas-fir Breeding Programs

Creator:: Ye, T. Z. and Jayawickrama, K. J. S.
Abstract:: Measurements on growth traits up to 41 years of age from 68 progeny sites in eight first-generation breeding zones of coastal Douglas-fir (Pseudotsuga menziesii [MIRB.] FRANCO var. menziesii) in the US Pacific Northwest were used to investigate age trends of genetic parameters and to determine optimum age of selection. Heritabilities...
Resource Type:: Article
Full Text:: . A., S. A. CAMPBELL, J. R. POWELL, B. E. WOLFE, R. M. CALLAWAY, G. C. THELEN, S. HALLET, D. PRATI

Size and survival of 2-0 Douglas-fir seedlings

Creator:: Zaerr, Joe B., Lavender, Denis P., and Oregon State University. Forest Research Laboratory
Abstract:: Results reported here are from a large study designed to evaluate the effects of certain nursery procedures on subsequent survival of Douglas-fir seedlings. The effects of storage conditions and lifting dates were reported elsewhere (9). The determination of the optimum size of seedling for planting on different sites has been...
Resource Type:: Technical Report
Full Text:: Paper 72, 26 p. 1965. 9. ZAERR, J. B. and D. P. LAVENDER. Some guidelines for planting 2-0 Douglas-fir

Some guidelines for planting 2-0 Douglas-fir in Oregon : a preliminary report

Creator:: Zaerr, Joe B., Lavender, Denis P., and Oregon State University. Forest Research Laboratory
Abstract:: The Dwight L. Phipps State Forest Nursery at Elkton annually supplies 22 million 2-0 Douglas-fir seedlings to Oregon land managers. Some managers report excellent success in planting, but others report failures, particularly when planting late in the season. In some instances poor survival seemed to be related to storage. Physiological...
Resource Type:: Technical Report
Full Text:: PLANTING 2-0 DOUGLAS-FIR IN OREGON A PRELIMINARY REPORT Joe. Zaerr Assistant Professor of Forest

How to recognize frost damage in forest trees... and what to do about it [1946]

Creator:: Hermann, Richard K., Zaerr, Joe B., and Oregon State University. Extension Service
Abstract:: Published August 1946. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Other
Full Text:: periods when plants acquire or lose frost resistance. Richard K. Hermann and Joe B. Zaerr Professor of

ScholarsArchive@OSU

Physiological and morphological responses to water deficit in seedling progeny of four populations of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco)

Survival and some physiological aspects of tissue cultured cells from Douglas-fir (Pseudotsuga menziesii Mirb. (Franco)) and a poplar hybrid after freezing to liquid nitrogen temperature

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

Patterns of growth and seasonal changes in the concentrations of abscisic acid and indoleacetic acid in roots of western hemlock

Ionic balance and organic acids in western redcedar, western hemlock, and Douglas-fir seedlings grown in low- and high-N soils

Effects of CO₂ enrichment during flowering and podfill on net photosynthesis, dry matter accumulation and yield of beans, Phaseolus vulgaris L.

Early Selection for Improving Volume Growth in Coastal Douglas-fir Breeding Programs

Size and survival of 2-0 Douglas-fir seedlings

Some guidelines for planting 2-0 Douglas-fir in Oregon : a preliminary report

How to recognize frost damage in forest trees... and what to do about it [1946]

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