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Filtering by: Date issued sim 1975-06 Degree Name Doctor of Philosophy (Ph.D.)

Utilization of the night-interruption phenomenon to hasten the seed increase of long-day cereals during short-day regimes in California and Arizona

Creator:

Ebeltoft, David C.

Abstract:

Tests were carried on in growth chambers and in the field to determine if the harvest of daylength-sensitive long-day cereals grown during the winter in Arizona could be hastened 30 days by the use of night interruption. Two durum lines which were near-isogenic for sensitivity to daylength were used throughout...

Resource Type:

Dissertation
Dynamics of crab larvae (Anomura, Brachyura) off the central Oregon coast, 1969-1971

Creator:

Lough, Robert Gregory, 1943-

Abstract:

Bimonthly plankton samples were collected from 1969 through 1971 along a transect off the central Oregon continental shelf (44° 39. l'N) to document the species of crab larvae present, their seasonality, and their onshore-offshore distribution in relation to seasonal changes in oceanographic conditions. A comprehensive key with plates is given...

Resource Type:

Dissertation
Soil and hydrologic factors affecting stability of natural slopes in the Oregon Coast Range

Creator:

Yee, Carlton S.

Abstract:

This study was conducted to examine certain soil and hydrologic properties of two major cohesionless soils Occupying 55% of the central portion of the Oregon Coast Range. Knowledge of these properties was desired to determine the role each played in the stability of slopes in this region. Bohannon and Klickitat...

Resource Type:

Dissertation