Digital Commons Network^™

Factors Determining Fruit Set And Seed Development In Artificially Pollinated Tomatoes, Charles Howard Henry

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Commercial plantings of tomato hybrids will give increases in earliness and yield because of hybrid vigor, but seed costs become a limiting factor. The necessity of hand-pollination makes the production of first generation hybrid tomato seed a costly enterprise. Failures of fruit set and seed development in artificially pollinated tomatoes are two contributing causes for the increased cost of F₁ seed.

The purpose of this investigation is to study some basic factors influencing these failures and to find ways of increasing fruit set and number of seeds per fruit.

The scope in addition to the field studies described includes …

A Comparative Study Of Raw, Pasteurized, And Hydrogen Peroxide Treated Milk In The Production Of Swiss Cheese, John Darold Johnson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

At the present time the Swiss cheese making process is a prolonged one requiring several operations and considerable space. The cheese is made in wheels weighing approximately 200 pounds and is covered by a thick rind. There is considerable waste in cutting these large wheels to fit the present merchandising methods.

The Effect Of Feeding Sucrose To Beef And Swine On The Percentage Of Carbohydrate, Ph, Color, Texture, And Flavor Of Muscle And Liver, Margaret B. Merkley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Carbohydrates have long been a part of animal feeding rations. Grains are included in all animal feeding formulas. The by-products of sugar beets have been used for many years in livestock feeding (Kutish 1950b). The use of molasses in commercial feed mixes in 1899 made possible its extended use in animal feeding practices (Hall 1950).

Protein feeds for cattle are relatively high in price and not available in adequate supply. With these facts in mind Culbertson of Iowa State College set up experiments in 1950 to find out whether part or all of the protein supplement could be replaced with …

The Solution Of Boundary Value Problems By Use Of The Laplace Transformation As Compared With Classical Methods, Dan W. Stoddard

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this paper is to present a study of different methods of solving certain boundary value problems. In particular it will be concerned with solutions by classical methods and by operational methods. Of the various operational methods that may be considered, the Laplace transformation appears to be the best⁽¹⁾ and will be used in this paper.

In the 1951 Encyclopedia Americana Annual is this report on the activities in applied mathematics for the previous year:

Progress was made on the general problem of finding the eigenvalues of matrices and systems of differential equations. Considerable effort was also …

Geology Of The Mink Creek Region, Idaho, Allen S. Keller

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Mink Creek region is centered 14 miles northeast of Preston in Franklin County, Idaho (see Index Map, Figure 1). The area of this report comprises approximately 70 square miles. It is bounded on the north and south by parallels 42°17' and 42°11' North Latitude and on the east and west by meridians 111°37' and 111°49'. The easternmost part of the area is located in the Bear River Range and is part of the Cache National Forest.

The region is readily accessible. A paved Idaho State Highway goes through the center of the area and State Highway 34 skirts the …

A Management Study Of The Idaho-Utah Interstate Deer Herd With Special Reference To The Sublett, Black Pine, And East Raft River Mountain Unit, Kenneth L. Diem

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Extensive deer migrations have been observed for many, years in western mountain regions. More recently several complex interstate migrations have become the objects of careful study and the subjects of special wildlife movement programs. The interstate deer migrations between the Sublett-Black Pine, Idaho, areas and the East Raft River Mountain, Utah, area are not exceptional. These migrations are now of such a magnitude that they are creating management problems of increasing importance to the 2 states involved.

Attitudes Of Members Of The Latter-Day Saint Church Towards The Church Welfare Program And The Relationship Of These Attitudes To Selected Factors, Harold L. Bartlett

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This is a study of an institution. Institutions are established to meet basic human needs, some of which are shelter, association, protection, and self-expression. They formulate within the group patterns of behavior which are intended to guide and develop habits of conformity in the individual. An institution is made up of traditions, habits and attitudes, leaders and members, symbols, regulations, and property.

The Discharge Coefficient In The Coordinate Method For Measuring Pipe Flow, Day L. Bassett

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Agriculture, industry, and community life continue to impose great demands upon available sources of water, particularly in arid and semi-arid regions. Efficient utilization of water, demanding careful distribution and use, implies flow measurement.

The coordinate method for measuring pipe flow finds some application in industry where estimates must be made of the flow of fluids containing relatively large amounts of suspended solids that would render other measuring devices ineffective. Widest application may be found, however, in agriculture where a simple, quick, and inexpensive means for estimating well flow, pump discharge, drain efflux, etc., is necessary if the farmers are to …

An Ecological Survey Of The Muskrat At Locomotive Springs, Box Elder County, Utah, 1950-51, Robert A. Mccullough

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Locomotive Springs Migratory Waterfowl Refuge, located on the north shore of Great Salt Lake, Utah, is a state-owned area of about 12,000 acres. Six springs arise from the desert floor and flow south and south-east toward Great Salt Lake. The refuge encompasses these springs and their outflows. The area, while predominately vegetated by the Sarcobatus-Atriplex type, has 1,200 acres of open water and about 2,560 acres of marsh and stream-channel edges. The area was purchased by the State of Utah in 1934 with the express purpose of providing waterfowl hunting for the general public who could not afford to …

The Effect Of Common Contaminants On Cheese Starter, Ivan R. Miller

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Starter is the "heart" of the cheese making industry. Only by proper handling of starter can good quality cheese be made. The economic loss from contaminated starter may prove disastrous to a cheese plant if proper corrective measures are not taken.

Milk usually contains a variety of bacteria. Under plant conditions some of these bacteria get into the mother starter or bulk starter unless extreme caution is used. Comparatively little is known about how one organism influences another when grown in milk. This problem is important in the cheese industry.

The Yield And Thiamine, Riboflavin, And Niacin Content Of Alfalfa Hay As Related To Fertilizer Treatment Of Soil, Rasik L. Pathak

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Alfalfa has long been recognised as an outstanding hay plant in terms of both yield and feeding value. It is high in digestible proteins minerals, and vitamins. Because of its long life. it can be economlcally produced. It is of exceptlonal value in maintalning soil fertility by helping to control erosion, by improving the physical condition of the soil, and by accumulating large amounts of nitrogen.

Unit Consumptive Use Of Water Studies In The Ashley And Ferron Valleys Of Utah For The 1950 Growing Season, James O. Henrie

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

For the past 2 years a project has been carried on by the Utah Agricultural Experiment Station and the United States Department of Agriculture, Soil Conservation Service, in cooperation with the Utah State Engineer, in the Ashley and Ferron valleys of Utah to determine the consumptive use of water in these areas. This report is the preliminary part of the third year of study. It includes a determination of unit consumptive use values for the major agricultural crops. These values will later be used by the Soil Conservation Service and Experiment Station in determining the valley consumptive use by the …

Crossing Techniques, Method Of Seedling Establishment, And Inheritance Studies Of Plant Color And Pubescence Conducted On Pubescent Wheatgrass Agropyron Trichophorum (Link) Richt, A. Morris Decker Jr.

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In about half of the angiosperm species the gamete chromosome number is a multiple of that found in some related species. This and the fact that polyploidy has such a pronounced effect on plant physiology and growth, as pointed out by Noggle, serve only to emphasize the importance of understanding more about polyploid genetics.

Varietal Response In Alfalfa For Seed Production As Affected By Lygus Infestation And Related Factors, A. Glenn Wahlquist

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Alfalfa is one of the most valuable of our forage crops. A dependable source of seed is therefore a primary essential to the success of our present system of agriculture. More than 70 million pounds of alfalfa seed are required each year in the United States to maintain the present hay and pasture acreage of this crop; and the annual demand for seed would increase to more than 100 million pounds if the acreage were expanded to the extent recommended for soil conservation and a balanced agricultural security.

The Yield And Thiamine, Riboflavin And Niacin Content Of Alfalfa Hay As Related To Fertilizer Treatment Of Soil, Rasik L. Pathak

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Alfalfa has long been recognized as an outstanding hay plant in terms of both yield and feeding value. It is high in digestible protein, minerals, and vitamins. Because of its long life it can be economically produced. It is of exceptional value in maintaining soil fertility by helping to control erosion, by improving the physical condition of the soil, and by accumulating large amounts of nitrogen.

The great importance of alfalfa growing in the United States is attested by its rapid and continued expansion. It is one of the most important forage crops and is grown on a greater acreage …

A Population Study Of The South Cache Elk Herd, Roger James Mccormack

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Elk, because of their wide ranging habit and frequently inaccessible habitat, are among our least known big game animals. As a result the management of elk herds has been handicapped by a lack of essential information. Population numbers remain unknown, ranges undefined, and decimating factors unevaluated to cite but three conditions which hamper efficient management on a long range basis.

Canal Seepage Loss Investigations In The Lewiston Area, Utah, Robert V. Thurmond

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

With population, industry, and irrigation ever increasing in the arid west, there arises new and greater demands for water. Much of the water now urgently needed is lost as seepage from the many miles of canals in the western states.

Rohwer and Stout (18) have estimated that in the western states from one-third to one-half of the water diverted for irrigation is lost before it reaches the farmers' fields. Of these losses, seepage probably accounts for the greatest loss. It is reported by the Bureau of Reclamation (14) that, of the 14,600,000 acre feet of water diverted on 36 projects …

An Evaluation Of Necessary Elements For Desirable Industrial Arts Instruction In The Elementary Schools Of Utah, Lee W. Ralphs

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

An essential part of the elementary school curriculum is the creative activity program connected with it. Educators believe that the fullest development of the child can best be attained through a program which provides a series of well selected experiences and activities. At present education considers the whole child--his abilities, needs, and interests--as vital factors in the development of a good curriculum, instead of merely the concrete and formal subject matter. Recently there has been an expressed view, by administrators of elementary school systems and many authorities and industrial arts teachers, that there is a definite need for formulating an …

Teacher And Prinipal Evaluations Of Selected Administrative Practices In Secondary Schools In Utah, Leo William Jex

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

It is the purpose of this study to gather data concerning the frequency of occurrence, and the degree of desirability is the judgement of teachers, of selected administrative practices in the secondary schools of Utah, and to present the data in a way that will make them meaningful to those interested in the improvement of administering schools. The study deals with selected administrative practices in terms of : (a) department and school budgets and extra-curricular funds, (b) classrooms, teaching aids and supplies, (c) supervision and other methods of improving instruction, (d) methods of keeping the public informed about the schools, …

High School Grades And College Aptitude Tests As Indices To College Achievement And Contination At Utah State Agricultural College, Walter Clarence Johnson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

For many years colleges have been concerned about entrance requirements and procedures for admitting students. In fact, to deal with such matters was one purpose of the famous N.E.A Committee of Ten which reported in 1893. A few years later the Committee on College Entrance Requirements met and considered the problem directly. Transcripts of credits from high school including specified subjects, the passing of the generally recognized College Entrance Board Examination, and the passing of entrance examinations set up by the individual colleges all have been used as evidence for admission to college. Such examinations are also used as indicators …

Evaluating The Curriculum Of Logan Secondary Schools In Terms Of Meeting The Imperative Needs Of Youth, Leo R. Walker

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Committee on Curriculum Planning and Development of the National Association of Secondary School Principals has published a list of 10 objectives for secondary schools, known as the Ten Common and Essential Needs That All Youth Have in a Democratic Society.(8) They are generally referred to as The Ten Imperative Needs of Youth.

Imperative Need No. 1. All youth need to develop saleable skills and those understandings and attitudes that make the worker an intelligent and productive participant in economic life. To this end, most youth need supervised work experience as well as education in the skills and knowledge of …

Academic Mortality And Survival Of Students Of The Freshman Class Of 1946 Through Senior Year 1950 At The Utah State Agricultural College, Marvin T. Bell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In the vernacular of higher education, withdrawal from college before graduation is known as student mortality. Staying for the full course of study is called survival. "Students and their parents so often fix their attention on the business of gaining admission to college that they fall into the easy error of thinking that a degree will automatically follow from the allotted time spent there. The fact is that, on average, half of the class will have fallen by the wayside."

This study is not an attempt to set down the reason for the student mortality at the Utah State Agricultural …

A Study Of The Physical Education Background And Current Interests Of The Freshmen Boys At The Utah State Agricultural College, Logan, Utah 1950, Ray Watters

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The first organized program in physical education appeared in American colleges at the University of Virginia between the years 1850 and 1860. The first public school program appeared somewhat later. Since these beginnings, school and college programs have advanced steadily, keeping pace with our advancement in the philosophy of education and biological science. At the present time, almost all schools include physical education as an element in the curriculum.

An Ecological Study Of The Utah Sculpin Cottus Bairdi Semiscaber In Logan River, Utah, William Merle Zarbock

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The study of the Utah sculpin Cottus bairdi semiscaber, or Rocky Mountain bullhead as it is known locally on Logan River, Utah, is primarily one of determining its relation to game fish. Field work for this study began in 1949 and continued to March of 1951. Numbers of the Utah sculpin on Logan River have been estimated to be as high as 150 per tenth mile of stream. The larger populations are in the area of the third impoundment on Logan River and downstream.

The Relative Efficiency Of Artificially Stack-Dried Alfalfa Hay Versus Field-Cured Alfalfa Hay In Promoting Growth Of Dairy Heifers At Huntley, Montana, John A. Stocking

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Roughage is the cheapest source of nutrients for herbivorous animals, and alfalfa is the best of the roughages because animals consuming alfalfa as a major part of their diet have an adequate supply of protein, energy, and a considerable proportion of needed vitamins.

Inheritance Of 16 Barley Characters And Their Linkage Relationships, Tejpal Singh Gill

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The assignment of genetic factors to definite loci in the hereditary mechanism has been a great step in the progress of biology. Of the cereal crops, barley (Hordeum sp.), a crop of economic importance, offers a superior opportunity for genetic studies. Its adaptation to wide varieties of conditions, with a wealth of easily differentiated characters and only seven pairs of chromosomes, the barley plant provides excellent material for linkage studies.

Although there is a vast amount of literature dealing with inheritance in barley, yet knowledge of the subject is still very limited. The mode of inheritance of about one hundred …

An Evaluation Of Wool Density Sampling Procedures When Using The Wira Fleece Caliper, Doyle J. Matthews

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Wool is still the most valuable and the most versatile fiber used by man. Many questions regarding its production have gone unanswered for centuries. This problem is undertaken in the hope of contributing information which might be used in further study on the problem of wool density.

The Freezing Point Of Water In Puddled And Unpuddled Soils At Different Soil Moisture Tension Values, Robert B. Campbell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A technique that will adequately describe the physical condition of water in the soil has long been desired by scientists. The method should include the effect of soluble materials on the osmotic pressure of the soil solution, and also the effect of surface force action between the soil and soil water.

Parker (8) demonstrated that the freezing point was reduced in the presence of finely divided material. This suggested the possibility of using the cryoscopic procedure to measure the physical condition of water soil. More recently, the introduction of Thermistors for accurate temperature measurement have made it desirable to investigate …

Use Of Dk Cheese Starter In Manufacture Of Commercial Cheddar Cheese, Carl Anthon Ernstrom

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Several months' curing time is needed to give cheddar cheese the desirable flavor demanded by the market. The exact length of time required for curing depends upon the flavor intensity desired, but the curing process is always costly and time-consuming.

The practice of making cheddar cheese from pasteurized milk is now common throughout the industry. Many progressive cheese factories are pasteurizing their milk and enjoying the consequent benefits from a higher quality product. Although pasteurization has eliminated many of the quality problems in cheesemaking, it has resulted in even slower curing cheese.

Much of the cheese research now being carried …

A Comparison Of Sweet Cream Buttermilk Powder With Nonfat Dried Milk Solids In The Manufacture Of Ice Cream, Davi Yanasugondha

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Properly dried sweet cream buttermilk, because of its high fat and lecithin contents, should make superior ice cream. Its use as a source of serum solids in ice cream. Its use as a source of serum solids in ice cream mix would open an outlet for this butter by-product and would serve the needs of ice cream manufacturers during nonfat dry milk solids shortage and it may make a higher score ice cream. The demand for milk solids shortage and it may make a higher score ice cream. The demand for milk solids has been increasing so rapidly that today …