Life Sciences Commons^™

The Relationship Between Oxygen Consumption Of Excised Roots And Susceptibility To Chlorosis In Several Varieties Of Grapes, Walter J. Kochan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Chlorosis is a serious problem when varieties of Vitis labrusca are grown on calcerous soil. However, chlorosis is mild or non-existant in varieties of Vitis vinifera when grown on the same type of soil.

Salt Movement And Forage Crop Establishment In A Saline-Alkali Soil As Influenced By Ridges And Furrows, Sprinkler Irrigation, And Soil Amendments, D. C. Purnell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

An estimated two to four million acres of irrigable saline and alkali soils of the United States return very little income to land owners (17,19). Increased needs for forage crops, and the relatively high salt and alkali tolerance of some improved forage species, once established, suggests a way of increasing revenue from some of these lands without costly reclamation.

The Influence Of Temperature Gradients On Soil Moisture Flow, Luigi Cavassa

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The isothermal movement of liquid water in saturated soil has been intensively studied, and a sound theoretical basis has been developed. Considerably less is known about the flow of water in unsaturated soils, but a general theory based on Darcy's law of flow is beginning to develop. A good theoretical basis exists for the vapor diffusion under isothermal conditions. Inconsistent data and theories are found in the literature concerning the movement of water in both the vapor and liquid phases, under the influence of thermal fields.

Studies In The Life History And Ecology Of The American Pintail (Anas Acuta Tzitzihoa Vieliot) In Utah, Robert W. Fuller

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Wildlife management has been defined as lithe manipulation of wild populations of vertebrate animals in their relation to man and his interests" Wildlife management, then, could not exist in the absence ot either wildlife or humans. Converting this idea to the waterfowl situation, we can say that there are no waterfowl problems other than as they exist in the minds of men. (Wil1s, 1951) These words by the Chief of the IllinoIs Natural History Survey precede a plea for fundamental facts and a basic understanding of waterfowl upon which sound management can in turn be based. l"or only through sound …

The Total Surface Of Some Soils As Related To Permeability And Water Retention Characteristics, Warren W. Rasmussen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

It is generally recognized that many of the chemical and physical properties of soils are dependent upon the surface activity of the finer soil fractions. The importance of the magnitude of the surface areas to such properties as base exchange, water-holding capacity, absorption of gases, and the plasticity of soils has been demonstrated. Attempts have been made to determine or estimate the surface of soils and soil fractions by various methods and to relate the values obtained to the physical and chemical characteristics exhibited by these materials. Most determinations have been based on calculations of surface area from mechanical analysis …

Inheritance Of Ten Characters In Barley Crosses, Hazim Ahmed Al-Jibouri

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Inheritance of many characters in barley has been studied, and two or more genes have been located in each of the seven pairs of chromosomes. Studies of the mode of inheritance of these characters will aid plant breeders materially in working with plants of diverse genetic make-up. Hybridization followed by selection and testing can improve present varieties by replacing them with new ones having more desirable characters.

Barley (Hordeum sp.) is one of the few species of plants widely distributed which is well adapted to genetical analysis. This plant has a lower number of chromosomes, complete self fertility, and a …

The Influence Of Time And Rate Of Application Of Urea Spray On The Yield And Protein Content Of Winter Wheat, Vern L. Marble

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Winter wheat, with an annual average acreage of about 300,000 acres, forms an integral part of the farm economy of Utah.

For many years intermountain agronomists and farmers alike have known dry-land wheat production to be limited by low summer rainfall. In the past 15 years, however, it has become apparent through intelligent research that in many cases lack of nitrogen has been the limiting factor. When this occurs, winter wheat production can be increased by correcting this nitrogen deficiency

A Linkage Study Of Chromosome Iv In Barley, Earl William Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Barley (Hordeum sp.) is a principal cereal crop throughout much of the world and is of great economic importance in the United States. Spring barley is a leading cereal crop in Utah.

Barley has many desirable characteristics which make it an excellent plant for genetic studies. Some of these characteristics are low chromosome number, almost complete self-fertilization, relative ease of hybridization, and easily classified hereditary characters.

The establishment of genes or factors at definite loci in linkage groups is a valuable aid in furthering breeding programs and the ultimate improvement of barley. All seven linkage groups have been established …

Merchandising Of Turkeys In The Principal Cities Of Utah, 1951-52, Joseph A. Bailey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The production of turkeys comprises an important part of the cash farm income in Utah. In 1951 the cash receipts from turkeys amounted to $13,986,000, or 7.4 percent of the cash income from all farm commodities (4). In the year 1951 Utah ranked seventh in the nation in turkey production (5). The production of turkeys has risen from a humble beginning to one of the important agriculture enterprises in Utah.

Whereas a portion of the crop can be marketed at home, approximately 90 percent of the turkeys must be shipped to eastern markets. The Utah Turkey Federation, together with the …

The Influence Of Amounts Of Propionibacterium Shermanii On Eye Formation And Flavor Of Swiss Cheese, Dan G. Turner

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Swiss cheese has been rightly called "king of the cheeses." It has been prized the world over for its stately appearance and sweet "hazelnut" flavor. In grading Swiss cheese, these two things,appearance and flavor, are important considerations in determining the cheese score. Appearance is judges according to the number, type, and size of eyes present in the cheese, with color and body and texture also considered. Flavor is judges according to the degree of sweetness and the amount and kinds of off flavors present.

In the past, there has been considerable variation in the quality of the Swiss cheese produces. …

Mileage Per First Service As Affected By Shape Of Area And Number Of Cows Serviced By A Technician Of A Utah Artificial Breeding Association, Geren V. Howell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Artificial insemination of dairy cattle is one of the recent enterprises of dairymen in this area. It is an enterprise which has expanded rapidly and will likely continue to expand during the next few years. In this area the technician or inseminator collects from $6.00 to $10.00 at the time of first service. This entitles the dairyman to two repeat inseminations for that cow, if necessary, to get the cow pregnant. Of this amount the technician receives $2.75. A bonus payment is made so that technicians inseminating fewer than 500 cows receive a total payment of $3.60. The bonus payment …

The Cinnamon Teal (Anas Cyanoptera Vieillot): Its Life History, Ecology, And Management, Howard E. Spencer Jr.

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

It takes but a perusal of literature pertaining to waterfowl to realize the paucity of information regarding the Cinnamon Teal. The Redhead, Blue-winged Teal, and Canvasback have all been exhaustively studied by Low (1941). Bennett (1938), and Hochbaum (1944), respectively; and other species are now receiving attention from other workers. In order to help round out these studies of particular species, the writer undertook the project of a detailed study of the life history, ecology, and management of the Cinnamon Teal.

The Lounging Barn Management Versus The Psture Management For Milk Production At The Tennessee A & I State University's Farm During Mid-Summer, Homer Rex Wheaton

Tennessee State University Alumni Theses and Dissertations

No abstract provided.

The Influence Of Temperature Gradients On Soil Moisture Flow, Luigi Gavazza

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The isothermal movement of liquid water in saturated soil has been intensively studied, and a sound theoretical basis has been intensively studied, and a sound theoretical basis has been developed. Considerably less is known about the flow of water in unsaturated soils, but a general theory based on Darcy’s law of flow is beginning to develop. A good theoretical basis exists for the vapor diffusion under isothermal conditions. Inconsistent data and theories are found in the literature concerning the movement of water in both the vapor and liquid phases, under the influence of thermal fields.

Distribution Of Fluorine In Utah County, Utah, Soils And Uptake Of Fluorine By Plants, E. Don Hansen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Fluorine released from industrial operations is eventually deposited on the surface of the earth, intercepted by plants, or absorbed in open bodies of water. the term fluorine as used in this thesis will be considered to refer to fluorine in combined form.

Industrial expansion has caused atmosphere pollution from fluorine in many parts of the United States. Utah County, Utah, is one of the affected area, and is the principal area of concern in this thesis.

In the spring of 1951, Utah Agricultural Experiment Station initiated a broad investigation on soil, water, plant, and animal problems arising from fluorine atmospheric …

An Improved Technique For The Demonstration Of Tissue Lipids, Bryan G. Hoerl

Master's Theses (1922-2009) Access restricted to Marquette Campus

Progress in science frequently depends upon proper tools to demonstrate, enhance, integrate, substantiate or refute contentions. Among the means that make possible the advance of biological science is histological technique. Improved microscopic procedures result from a constant refining process and the search for new methods. To merit the adjective "improved" a new or refined technique must display a superiority to similarly employed processes. Such superiority might be shown by its speed, economy, practicality, ease or faithfulness of reproduction, or same other attribute. This paper portends to present an improved technique for the demonstration of tissue lipids .

The Respiratory Response To 6.2 Percent Carbon Dioxide And Various Concentration Of Oxygen At A Ground Level Of 5000 Ft. (Av. Bar. 630 Mm Hg), Astrid Lindholm

Biology ETDs

In this study the literature has been reviewed with [the aforementioned] facts in mind. It was of interest to note the lack of agreement among investigators concerning the respiratory response not only in inhaling 100 percent oxygen, but also to breathing gas mixtures containing low oxygen. Very few papers were found in which as systematic respiratory study had been made to determine the variations in ventilation produced by a given concentration of carbon dioxide at various concentrations of oxygen. On a whole, considerable individual difference in respiration was reported and it seemed worthwhile to study carefully a specific acclimatized subject …

Growth And Respiratory Studies Of Saccaromyces Cerevisiae In The Presence Of Selenium, Robert M. Pengra

Electronic Theses and Dissertations

The occurrence of selenium in certain soils of the United States and its detrimental effect upon livestock pastured on or fed forage from these areas has been well established. Selenium poisoning will not be reviewed here as several excellent reviews have been published (1, 2, 3). Studies on the metabolism of selenium by Sac-charomyces cerevisiae have been reported by Potter and Elvehjem (4), Lardy and Moxon (5), and Fels and Cheldelin (6, 7, 8). An attempt has been made in this thesis to repeat and enlarge on some of these studies. While this investigation may contribute information on the selenium …

The Bacterial Flora Of The Alimentary Canal Of Passalus Cornutus Fabricius, George Taylor Tunstall

Master's Theses

The author has carried out an investigation of the bacterial flora of the alimentary canal of twenty-five specimens of Passalus Cornutus Fabricius between February and August and has described the species of organisms encountered. One hundred and eighty-two organisms were identified. Five families, six genera, and sixteen species were represented. Family Enterobacteriaceae is represented by: Escherichia freundii (Braak), Escherichia intermedium (Werkman and Gillen), Erwinia nimipressularis (Carter), Erwinia passali (sp. nov.), Erwinia intests (sp. nov.), and Erwinia virginia (sp. nov.). Only Bacterium passali (sp. nov.) is found in Family Bacteriaceae. Family Achromobacteriaceae is represented by Achromobacter passali (sp. nov.). Family Bacillaceae …

The Effect Of Antibiotic And Vitamin B12 Feed Supplements On Lactating Dairy Cows., Muhammad Obayedul Haq

LSU Historical Dissertations and Theses

No abstract provided.

Studies On The Cause And Transmission Of A Louisiana Citrus Disease Similar To Tristeza., Charles Adam Schexnayder

LSU Historical Dissertations and Theses

No abstract provided.

Stubble Deterioration Of Sugarcane In Mississippi., Iley Edgar Stokes

LSU Historical Dissertations and Theses

No abstract provided.

A Study Of The Relationship Of Performance In Certain Generally Accepted Tests Of Physical Fitness To Circulatory - Respiratory Capacity Of Normal College Men., Walter L. Russell

LSU Historical Dissertations and Theses

No abstract provided.

Some Effects Of Certain Proteins On Carotene Utilization In The Rat., Ibrahim Mohamed El Gindi

LSU Historical Dissertations and Theses

No abstract provided.

Strength Characteristics Of Multi-Ply And Single-Ply Handsheets, Yale Brandt

Paper Engineering Senior Theses

In a multi-ply handsheet there are three fundamental strengths. These fundamental strengths are the bonding between plies, bonding between fibers and the strength of the fibers. The strengths are interrlated and controlled by the preparation and mechanical handling of the stock.

The beating of the fibers, the consistency at which the sheet is formed, the couching pressure, and the final pressing all produce certain marked effects on the strength characteristics in a multi-ply handsheet.

In general it may be said that the strength characteristics of a given weight sheet may be increased by forming a multi-ply sheet.

The Influence Of Fiber Length And Fiber Length Distribution On Some Strength Characteristics Of A Commercial Pulp, David Kraske

Paper Engineering Senior Theses

In this thesis, four groups of fibers with varying average fiber lengths have been separated from a coniferous bleached kraft pulp which had been beaten to different levels of freeness. The fractionation of the pulp was accomplished with a Bauer-McNett fiber classifier. The groups of fibers were analyzed for average fiber length, fiber length distribution and for their strength characteristics.

The results of this survey show interesting and significant trends, particularly with regard to the apparent density, tensile strength and the tearing resistance of the various fractions. The contributions of the various fractions to the strength characteristics of the whole …

Non-Cellulosic Fibers Their Properties And Influence On The Characteristics Of Handsheets, James W. Winn

Paper Engineering Senior Theses

Some non-cellulosic fibers have been discussed as to their paper making characteristics.

In the field of inorganic chemistry only glass fibers have been used in paper making. The methods used in the conversion of the brittle filament into paper have been described in detail.

In the field of thermoplastic fibers, Vinyon, a copolymer of vinyl chloride and vinyl acetate; Saran, a copolymer of vinylidene chloride and vinyl chloride; and Styrene, polymerized styrene units, have been discussed. The limited data found in the literature on the performance of Vinyon have been presented.

A Study Of Methods Used To Determine Fiber Length And Fiber Length Distributions By Optical Means, Russell Larson

Paper Engineering Senior Theses

Various methods of slide preparation and fiber measurement are discussed in this literature survey. It is generally agreed that the time required to complete an individual test of fiber length has been an important factor in preventing a wider application of fiber length measurements in stock preparation control. Most authors use a method whereby a slide containing a number of fibers is projected and. the measurements are made directly on the screen.

A method of measuring; fiber length and fiber length distribution by a projection arrangement is described and the operating procedure given. The relation between pulp at different degrees …

Taxonomic Survey Of The Eggs And Larvae Of Some Species Of Utah Amphibia, Don B. Skousen

Theses and Dissertations

How the eggs and larbae of the Utah amphibians differ from each other is the problem to be considered in this paper. Certain problems are yet to be answered. One problem is that the larvae of Rana pretiosa subsp. From utah fit the description of the Nevada form, Rana pretiosa luteiventris, as described by Thompson (1913) and not the description of Rana pretiosa pretiosa as set forth by Svihla (1935). Another problem is that the adults, tadpoles, and eggs of Rana pipiens brachycephala and Rana onca are strikingly similar. Rana fisheri of the Las Vegas Valley in nevada and Rana …

A Preliminary Study Of The Genus Carex In Utah County, Utah, William R. Liechty

Theses and Dissertations

It has been the purpose of the author in this study to determine, as far as possible in the available tim.e, the number and kinds of Carex which occur in Utah County; their distribution in relation to region, soil, moisture and other factors, and to provide keys to the species and a description of each one that occurs in this natural area.