Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Subject Defoliation -- Oregon Subject Defoliation

Growth responses of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) to defoliation

Creator:

Osman, Khalid Amir

Abstract:

The effect of defoliation intensity and season on Douglas-fir growth were studied in three replications in the Siuslaw National Forest during 1988-1990. Four intensities of defoliation were applied once in either spring or summer 1988. Stem diameter and canopy area were linearly inversely proportional to the level of defoliation. Defoliation...

Resource Type:

Dissertation

Full Text:

Defoliation. Khalid A. Osman and Steven H. Sharrow Department of Rangeland Resources, Oregon State
Oregon vegetable digest ; Vol. 15 No. 1

Creator:

Oregon State University. Agricultural Experiment Station, Crabtree, Garvin Dudley, Mack, H. J., Baggett, James R., Crowell, H. H., Duncan, Andrew A., and Siemer, Sidney R.

Abstract:

Published January 1966. 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:

fifteenth year of publication of the Oregon Vegetable Digest. In our first issue, Director F. E. Price
The effects of red alder leaf fall on the water color and other water quality characteristics of a small watershed in northwest Oregon

Creator:

Taylor, Robert Lynn

Abstract:

This study was initiated to make some preliminary evaluations of the effects of red alder (Alnus rubra, Bong.) leaf fall on stream water quality, particularly water color. Laboratory tests were also conducted to better understand the effects of leaf loading, duration of leaf leaching, and type of leaching on changes...

Resource Type:

Masters Thesis