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Birds Of The Brigham Young University Campus, Barid Baran Mukherjee

Theses and Dissertations

This paper deals with the seasonal distribution, relative abundance, and location of the different species of birds which visit or live on the Brigham Young University campus from late summer to early spring, with a brief account of their activities. The upper campus, where this investigation was carried on, covers an area of 201 acres and is situated on a bench at the foot of the Wasatch Mountains. The study was continued from July 13, 1955 to April 15, 1956. A total of 173 hours was devoted to census work and to studying the general ecology of the area. Four …

The Interrelation And Interaction Of Allenrolfea Occidentalis And Its Edaphic Environment, Blaine H. Quigley

Theses and Dissertations

To understand more fully how Allenrolfea occidentalis (S . Wats . ) Kuntze tolerates high salt concentrations and why it grows in hummocks, this study was undertaken . Allenrolfea is a shrubby member of the Sa licorneae subfamily of the Chenopodiaceae family , with practically leafless green succulent stems and inconspicuous flowers .

An Ecological Survey Of The Vascular Aquatic Vegetation Of The Cumberland Plateau In Tennessee, Franklin Delano Robinson

Masters Theses

A study of the vascular aquatic plants in the Cumberland Plateau in Tennessee was mad e during the summer of 1955. The purpose of this study was to find out the distribution of species in this area and try to learn some of the conditions under which the species involved survive. The species list for the area was arranged in alphabetical order under group headings according to the most frequently observed habit or position of growth. Under each species name the range and mean values determined for the carbon dioxide content, total acidity, total alkalinity, and pH of the surrounding …

The Use Of Urea And Stilbestrol In Fattening Rations For Beef Cattle, Samuel French Wolfe

Masters Theses

This investigation was conducted to study the substitution of urea and corn, on a nitrogen basis, for part or all of the protein supplement needed to balance a low protein fattening ration for steers, and also to study the effect of adding ten milligrams of stilbestrol per steer daily to a ration in which urea was used as the sole protein supplement in balancing the ration.

Photo-Oxidations Sensitized By Physiologically Important Substances, Ernel D. Ihnen

Theses and Dissertations

A study of the photo-oxidation of the 2,6-dichlorophenol indophenol-ascorbic couple was undertaken with a view to investigating the postulated mechanism of oxidation by a component of the oxygen evolving sequence operative in photosynthesis. A spectrophotometric method for the measurement of the progress of photo-oxidation was developed. Temperature and pH dependence were determined and the effect of various common inhibitors and physiological substances tested. None of the common Hill reaction inhibitors were effective in the ascorbic acid photo-oxidation in the system used. KCN and catalase as well as a few other high molecular weight proteins were able to inhibit dark auto-oxidation …

The Effect Of Adrenal Steroid Hormones On The Protein Content Of Tumorous Livers, Duncan W. Martin

Biology ETDs

Protein is basic to the structure and function of protoplasm. Enzyme systems which regulate the rate of cellular reactions are primarily composed of protein and many of these enzymatic systems influence the metabolism of less specialized proteins that form the major structural material of protoplasm. It is believed that experimental procedures which modify protein composition of cells may also influence the activity of intra-cellular enzymes. In experimental live cancer, it has been shown that the activities of a number of oxidative enzymes are modified as the carcinogenic process proceeds (Richmond, 1955, p.38). Furthermore, it has been demonstrated that endocrine function …

A Study Of The Effect Of Three Nutrients On The Growth Of Tomatoes, Walter B. Stone

Biology ETDs

Studies of the various phases of plant growth are becoming more and more important to plant physiologists. Many such studies have been conducted for economic reasons to obtain increased production. In this investigation, fruit production and quality have been considered important, but have been placed second in interest to the effect certain nutrients may have on plant development during growth.

Most experiments of this type have been concerned with nutrient deficiencies. The writer has attempted in this experiment to use nutrient elements in excess and observe the effects produced during progressive phases of plant growth. Single elements, nitrogen, phosphorus, and …

A Survey Of The Effect Of Mineral Salts On Direct Dyeings, Lawrence R. Bortolotti

Paper Engineering Senior Theses

A study of the effect of various minerals salts on dyeings made with direct dyes. Dyes were chosen for their frequency of usage in the paper industry; the salts were chosen for several reasons, the prime one being that they form a floc at approximately the same pH as that of the stock run over the paper machine, also for its cost and availability. Sheets were made with the various dyes and salts in severals percentages of each dried, out up into test sheets for fading and bleeding. The test sheets were examined visually for evidence of fading and bleeding …

Impartial Evaluations Of The Printing Quality Of Paper, Warren R. Engel

Paper Engineering Senior Theses

Several methods for the evaluation of paper have been investigated for their desirability as means of an impartial evaluation of the printing quality of paper. The halftone plate method showed the most desired results as an impartial evaluation of both coated and uncoated papers. The printing gage was not found to be a satisfactory method of evaluation. The drawdown method is especially significant in evaluating properties which influence the printing quality but lacks a suitable numerical evaluation.

An Evaluation Of Methods Of Concentrating And Counting The Phytoplankton Of Bear Lake, Utah-Idaho, William J. Clark

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The phytoplankton, or plant plankton, live in the open water throughout their life cycle and obtain the necessary nutrients from the water. They are important contributors to the total plant production of lakes and ponds.

Salt Tolerance Studies Of Selected Crop Plants, Cyril Reed Funk Jr.

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Extensive land areas in arid and semi-arid regions contain excessive amounts of salt which inhibit or prevent the growth of desirable crop plants. This problem is increasing with the development of extensive irrigation projects. The future of irrigation agriculture will depend upon the development and the utilization of means of (1) preventing salt accumulation, (2) reclaiming salted soils, and (3) making the best use of those soils which by reason of drainage problems, soil texture and permeability, poor quality irrigation water, etc. are unsuited for economic reclamation.

The utilization of land that is not feasible to completely reclaim, at least …

Red Raspberry Root Rot In Northern Utah, Robert L. Powelson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

During the last few years, red raspberry growers in Utah have been finding that plantings gradually lose vigor and are not profitable. In the largest raspberry growing area in Utah, Utah County, figures taken from the U.S. census from 1930 to 1950, show a decrease in acres of raspberries grown from 401 in 1930 to 190 in 1950 (2). In many instances this deterioration of raspberry plantings in Utah has not been definitely associated with known plant pathogenic fungi or virus infections. Neither can the expansion of suburbs account for this decrease. In certain cases it has been obvious that …

The Effect Of The Water Extracting Requirement Upon The Fertilizer, Yield And Growth Response Of Sweet Corn, Roberto Vazquez

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

There are a number of factors that influence crop yield, two of which are soil moisture and fertility.

Root Yields, Sucrose, And Glutamic Acid Content Of Sugar Beets As Influenced By Soil Moisture, Nitrogen Fertilization, Variety, And Harvest Date, Donald G. Woolley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The United States produces about 1.8 million tons of sugar annually. Approximately 75 per cent of this production is derived from sugar beets. The importance of the sugar beet crop in national and world economy is justification for research effort as a means to more economical production.

It is desirable that sugar beet processing be carried out in the most efficient manner. More effective utilization of the sugar beet and its by-products will add stability to the sugar beet industry.

For the past 170 years, since Achard found that sugar could be used for human consumption and that pulp might …

The Effect Of Bicarbonate On The Uptake Of Zinc By Plants, Lawrence G. Morrill

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Zinc deficiencies occur in many fruit orchards in Utah even though the soil contains amounts of zinc that would normally be sufficient for good plant growth. The existing zinc problem in Utah is, therefore, one of availability.

Problems of zinc availability generally occur in the pH range of 6-8. Zinc deficiencies occurring within this pH range are more frequently found on well-aerated soils than on poorly aerated ones with other conditions being the same. It has been shown that carbon dioxide will convert both zinc hydroxide and zinc carbonate into more soluble bicarbonates with the concentration of Zn⁺⁺ that …

The Inheritance Of Certain Morphological Characters Of The Barley Spike, Donald C. Rasmussen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Plant breeding, in its simplest form, began thousands of years ago. Since then it has grown into a science of immense practical importance with vast strides made possible by continued research.

The Economics Of Turkey Production In Utah, 1954, Richard W. Kearl

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The production of turkeys by farmers for market in Utah has risen from a meager beginning a few decades ago, to one of the important agricultural industries today. Utah's turkey industry has expanded tenfold from the 226,000 head sold in 1929 to the record high 2,285,000 head sold in 1954. Pounds sold was 13 times greater in 1954 than in 1929 due to the increased weight per bird as well as to the increase in number of head. The record number of 2,285,000 head sold for the amount of $10,635,000. This accounted for about seven per cent of the total …

A Study Of The Variability Of Distichlis Stricta Selections From Several Geographical Locations In The Western United States, Arlan Kent Nielson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Distichlis stricts as indicated by the available literature is rather unpalatable, but has the ability to grow vigorously on wet, saline, or alkali soils where more palatable species will not survive. D. stricts can be eradicated quickly where drainage and cultivation can be practices, but there are thousands of acres in the United States, Canada, Mexico, and Argentina where cultivation or drainage are impractical or impossible.

On such problem soils, where the majority of the vegetation consists largely of D. stricts, a great deal of benefit would be derived from any improvement in the forage quality of this species. …

Marketing Sheep And Lambs In Utah, 1954-55, Lloyd I. Holmes

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The sheep industry of Utah began about the middle of the nineteenth century when the Mormon pioneers came to Utah. The first sheep in Utah were of Merino breeding, kept primarily for wool production. These breeds were decendants of the early Merino sheep from Spain and were probably introduced into this country by Spanish explorers. Sheep are produced to provide food and fiber in Utah. Utah's climate, topography, and natural vegetation are conducive to sheep production. Sheep do well in semi-arid climates and can economically harvest the natural vegetation on land not suited to crop production. Utah has large acreages …

Ecology Of Plant Distribution On The Salt-Deserts Of Utah, Dillard H. Gates

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The reciprocal effects of vegetation and soils have long been a subject of speculation and conjecture. In the management of any natural land area the problem of interpreting vegetational expression is especially important. The effects of native vegetation on soils and the effects of the soil on the vegetation have been studied and observed for many years. The arid-desert range lands have been studied least and as a result are not well understood.

As human populations increase there will be additional need for agricultural production, and these lands may be put to higher use, perhaps even to irrigated crop production. …

Retail Merchandising Practices For Eggs And Poultry Products In Utah, 1955, M. Vincent Jorgensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Poultry and egg purchases represent a substantial part of the consumers' dollar spent for food. The Marketing and Transportation Situation reported that the average American family of 3.3 persons used 11.3 percent of its food expenditures for the purchase of chickens and eggs in 1953. This means that the average family spent $113.00 for eggs and chickens during that year.

Non-Return Conception Rate Of Artificially Inseminated Cows As Affected By Dilution Rate, Grade, Bull Source, And Age Of Semen Shipped By A Utah Artificial Breeding Association, William Lloyd Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Artificial insemination of dairy cattle has become a major part of the dairy industry during the past 15 years. There has been a steady increase in the number of cows serviced each year since the first artificial breeding association was organized in the United States in 1938. In 1952 there were 4,238,245 cows bred artificially. In 1953 there were 4,845,222 and in 1955, artificially bred cows numbered 5,250,000.

A Comparison Of Fluid Milk Processing 6 And 3 Days Per Week In One Small Plant, Utah 1953, John L. Willis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Many of the fluid milk processing plants in Utah are relatively small. The typical small plant in Utah is generally family operated with some hired help. Although most of the small plants are individually owned, some are operated as partnerships. Often the same man picks-up, processes, and then delivers the milk. Some of the processors also own dairy herds. In these cases the same man performs all the functions necessary to carry the milk products from the farm to the consumer's door. It is not uncommon to find the plant owner and manager performing all these duties himself.

Larger floor …

A Comparison Of Devices For Measuring Soil Moisture Tension And Their Effectiveness In Predicting Irrigation Requirements In The Field, Modesto Capiel

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Many problems of management of irrigated soils require a knowledge of the soil moisture status and its relationship to plant growth before they can be solved.

The amount of water in the soil as indicated by moisture content gives no reliable information of its availability for plant growth. It is therefore desirable to obtain a direct measurement of the readiness with which soil water can be obtained by the plant

the "field capacity" and the "wilting percentage" have been helpful in estimating the amount of soil water that can be used by plants.

Soil sampling has been used extensively to …

Seasonal Distribution Of Mosquitoes In A Mile-Square Area West Of Logan, Utah, Takeshi Miura

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Mosquitoes are one of the most important groups of insects, because of their blood-sucking habit and their ability to transmit a number of serious diseases, such as malaria, yellow fever, dengue, encephalitis, and filiariasis.

The most important mosquito-borne disease in Utah is probably equine encephalomyelitis, which is a serious disease in man, horses, and mules. According to Spendlove and others (1953), this disease occurs every year in Utah:

Cases among horses usually are scattered, but severe horse epidemics in past years have destroyed hundreds of animals. Since this disease in humans is difficult to distinguish from other similar diseases, such …

On The Kinetics Of Moisture Flow In Unsaturated Soils, James Wellington Biggar

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The flow of fluids in porous media continues to be a widely studied phenomenon. Soil moisture relationships and particularly the flow of water in soil is perhaps the most widely investigated of the four edaphatic factors related to plant growth, namely moisture, aeration, temperature and compaction.

The Airplane In Unit Sampling Of Mule Deer Populations In Harding County, South Dakota, Karl B. Kuhlmann

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The prairie deer region of South Dakota extends west from the Missouri River to the Black Hills. The region borders the states of Nebraska, Wyoming, Montana, and North Dakota, and is approximately 40,000 square miles in extent. Biologists believe that present deer numbers on these prairies are similar to those of pre-homestead days. The present large numbers of deer in certain counties have given many prairie ranchers and farmers cause for concern. The region's first deer season (bucks only) in 1952 resulted from earlier increases in mule and whitetail herds. After a closed season in 1953, a hunter's choice of …

Observations On The Morphology, Physiology, And Life History Of Allescheria Boydii Shear, Robert Denton Flory

Master's Theses

Of those organisms upon the face of the earth displaying a wide range of variability, excellent examples may be found amoung certain groups of the fungi. This extreme variation as noted in certain fungal groups becomes even more interesting when the phenomenon of sexuality is eliminated or of rare occur­rence as in many of the Fungi Imperfecti. Such extreme varia­tions occur in Allescheria Boydii, whose historical background is as interesting as the growth of the fungus itself.

In 1909 Tarozzi (46)isolated a fungus organism as the causative agent in a Sardinian case of mycetoma. Tarozzi referred this fungus to Saccardo, …

A Study Of Four Species Of The Pseudoscorpion Genus Megachernes, Dwain W. Parrack

Biology ETDs

Purpose.-- The Purpose of this study is to present descriptions of three new species of the pseudoscorpion genus Megachernes, to redescribe the female of M. papuanus Beier, and to describe for the first time the male of that species.

The Effect Of Soil Potassium Levels On Yield, Lodging And Mineral Composition Of Corn, Fred C. Boswell

Masters Theses

No abstract provided.