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Evaluation Of The Early Establishment Phase Of Agropyron Desertorum, Medicago Sativa And Atriplex Canescens In Monocultures And Mixtures, Oscar Luis Prado Escobar

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study evaluated the early establishment phase of various monocultures and mixed species plantings of Agropyron desertorum (AGDE), Medicago sativa (MESA), and Atriplex canescens (ATCA). The study was conducted under both greenhouse and field conditions. In the greenhouse, the experimental design was a split-plot, randomized-block design in time, using transplanted seedlings. The treatments were exposed to three water levels to determine species response to varying moisture availability. Plastic pots of 15.4 cm (diameter) by 17.9 cm (depth) were filled with 2,800 g of sandy-loam soil and brought to field capacity. The pots were weighted twice weekly and the water lost …

Rhizosphere N2 Fixation In A Forest Ecosystem In Situ Assays And Evaluation Of The Acetylene Reduction Technique, Inger Börjesson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In situ assays of N₂ fixation activity, using the acetylene reduction technique, were performed in four successional stages of a Northern Wasatch Mountain subalpine forest ecosystem, elevation 2,800 m. Emphasis was made on rhizosphere fixation in association with Antennaria microphylla and Achillea millefolium. The vegetation period was approximately 100 days.

Assays were performed in Saran bags. A defined amount of propane was injected at initiation of the assay and acetylene was generated from CaC₂. Samples were analyzed for ethylene and propane. Data were evaluated assuming that the ethylene production was directly proportional to the increase in …

Implementation Evaluation Of A Social Detoxification Program, Thomas M. Slaven

Theses and Dissertations in Urban Services - Urban Education

While cities across the United States are attempting to revitalize their central business districts, the presence of the public inebriate remains one of the most neglected urban problems hampering redevelopment efforts. An evaluation of the implementation of a social detoxification program was conducted to monitor planning, initial staffing, training, building community linkages, impact on the criminal justice system, and changes in clients' working and drinking behavior. Public Drunkenness arrests, and working and drinking behavior were measured at intake, three month and six month follow-up with a sample of clients undergoing detoxification, a comparison group of individuals jailed but not detoxified, …

The Formulation Of An Adult Dramatic Program For The Division Of Recreation And Parks In Henrico County, Virginia, Sandra Bishop

Theses and Dissertations

It is hoped that the contents of this thesis will help to provide a course of action through which the dramatic arts program may move closer to the objectives established for it by the HDRP administration. The dramatic arts program for adults, as set forth in the thesis, should create specific goals so that the HDRP may provide a consistent direction for the development of a dramatic arts program for adults. The adult dramatic arts program as formulated in the thesis should, combined with the already established dramatic arts program for youth, form a major portion of the comprehensive cultural …