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Filtering by: Committee Member Yoke, J. T. Non-Academic Affiliation Oregon State University. Graduate School Subject Douglas fir

Effect of thinning and fertilization on wood properties and intra-ring characteristics in young Douglas-fir

Creator:

Bodner, Josef

Abstract:

The purpose of this study was to determine if thinning, fertilization or a combination of thinning and fertilization had an effect on overall average specific gravity, modulus of elasticity, modulus of rupture, fiber length and intra-ring characteristics. Material for this experiment consisted of 7 trees randomly selected from each of...

Resource Type:

Masters Thesis

Full Text:

express appreciation to Dr. T. Brown, Dr. J. Tappeiner and Dr. J. Tedesco for serving on my committee
The role of soil-water depletion and plant-moisture stress in soil classification and cambial activity of Douglas-fir

Creator:

Thomas, Byron R.

Abstract:

Relationships between soil-water stress and plant-moisture stress were studied with respect to soil classification and cambial activity in Douglas-fir. The study sites were forested with Douglas-fir and located in McDonald Forest and near Marys Peak in the Oregon Coast Range. Soil-water depletion was followed by the use of gypsum blocks...

Resource Type:

Dissertation

Full Text:

implementation of this study. Acknowledgments a r e also made to Drs. J. K. Munford, W. W. Chilcote, R. Garren