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Filtering by: Alternative title ssim EM 9033 Degree Field Botany and Plant Pathology

Responses of algal populations to parasitism by Aphelidium chlorococcarum and chytrids in an Oregon sewage lagoon

Creator:

Woods, Wendy W.

Abstract:

The abundance of algal species and their parasites was monitored weekly for two years in a sewage lagoon at the Corvallis Airport, Oregon. During the cooler months, Euglena species were dominant followed by a Chlamydomonas assemblage in the spring and a predominantly Scenedesmus assemblage in the summer and fall. Parasites...

Resource Type:

Dissertation
Mediation of conifer root growth by mycorrhizal fungi and plant growth regulators

Creator:

Scagel, Carolyn F.

Abstract:

Many mycorrhizosphere microorganisms can produce plant growth regulating compounds in vitro. Plant growth regulating compounds are known to mediate root growth and development. In reforestation practices, conifer tree seedling growth and survival are linked to rapid root growth and development after outplanting. Multifactorial experiments were conducted to document variations in...

Resource Type:

Dissertation