First Advisor

Robert O. Tinnin

Term of Graduation

Winter 1979

Date of Publication

1979

Document Type

Thesis

Degree Name

Master of Science (M.S.) in Biology

Department

Biology

Language

English

Subjects

Rhododendrons, Allelopathy

DOI

10.15760/etd.2762

Physical Description

1 online resource (2, x, 86 pages)

Abstract

The purposes of this study were to determine if Rhododendron macrophyllum has the potential to inhibit the growth of other species through the production of water-soluble toxins which are leached out of its litter by rainfall, and to determine if this potential is realized in the field. The study was therefore composed of two part: 1) a series of bioassays to determine the presence an activity of water-soluble phytotoxins in R. macrophyllum leaf litter, and 2) a field study to describe vegetational patterns associated with R. macrophyllum in a western Cascades clearcut.

Rights

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Comments

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Persistent Identifier

http://archives.pdx.edu/ds/psu/17057

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