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Filtering by: Subject Douglas fir -- Testing Academic Affiliation Forest Management Advisor Lavender, Denis P.

Nutrient cycling under 450-year-old Douglas-fir stands

Creator:

Abee, Albert

Abstract:

To investigate the movement of elements (N, P, k, Ca, and Mg) from the tree crowns by natural litterfall and leave wash, plots were established on six 450 year-old growth stands at the H. J. Andrews Experimental Forest. The following are the results of the data analyses. Elemental concentrations contained...

Resource Type:

Masters Thesis

Full Text:

January 4, 1973. Title: IJutrient Cycling Under 450-Year-old Dougl~s-fir Stands. Abstract app roved e
Physiological and anatomical studies of several groups of Douglas-fir (pseudotsuga menziesii (Mirb.) Franco) seedlings which demonstrated differential survival potential under drought stress

Creator:

Heiner, Terry Charles, 1941-

Abstract:

Several hundred two year old Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings were planted in an enclosure designed to permit control of soil moisture. The seedlings came from five seed sources in southern Oregon and one seed source in northwestern Oregon. Mortality terminal and lateral budburst, and soil moisture were recorded...

Resource Type:

Masters Thesis
An anatomical study of the needles and hypocotyls of Douglas-fir seedlings grown under various environments

Creator:

Tucker, Richard Edward

Abstract:

Two seed sources of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings were grown under several environments in controlled growth chambers and in a natural environment. All seedlings were grown for six months and then harvested. One purpose of this study was to observe environmental influences on the anatomy of the needle....

Resource Type:

Masters Thesis

ScholarsArchive@OSU

Nutrient cycling under 450-year-old Douglas-fir stands

Physiological and anatomical studies of several groups of Douglas-fir (pseudotsuga menziesii (Mirb.) Franco) seedlings which demonstrated differential survival potential under drought stress

An anatomical study of the needles and hypocotyls of Douglas-fir seedlings grown under various environments

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