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Movement Of Phosphorus In Soils As Influenced By Chelates And Soil Types, Abd-Elmonem Sayed-Ahmad Mostafa

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The problems of phosphate fertilization have attracted the attention of agronomists, nutritionists, and other biological scientists due to the importance of phosphorus in animal and plant nutrition. However, the fundamental behavior of phosphorus in soil systems is not well understood. Because of its far-reaching effects, a solution of a portion of this problem is of importance.

Nature Of Non-Biological Decomposition Of Nitrite In Acid Media, Mukkatira Kariappa Mahendrappa

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Curiosity is the cause of investigations, and the thirst for knowledge originates from it. Many times at the end of investigations, the number of questions raised are greater than those for which answers are sought. Therefore, all the information gathered through scientific investigations may not be of value for immediate application in practical life. Nevertheless, no research can be considered less important than the other because the integration of several scientific findings considered less less important at the time of investigation may reveal something of very high significance. Similarly, the study of various transformation reactions that the added fertilizers undergo …

A Study Of The Factors Influencing The Synthesis Of Tobacco Mosaic Viral Rna In A Partially Purified Synthesizing System, Agnes P. Fok

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Research on biosynthesis of tobacco mosaic virus (TMV) ribonucleic acid (RNA) in vitro has been reported by Cochran, et al; Karasek and Schramm; Kim and Wildman; Cornuet and Astier; and Tongur and Baland in. It has been postulated that the replication of a number of viruses containing single-stranded RNA is accompanied by the formation of a virus-specific double-stranded helical RNA, the replicative form. This has been demonstrated both for animal and bacterial viruses including MS2. The double helical structure of purified replicative form of MS2 was established by X-ray diffraction studies. One of the strands was shown to be a …

Simultaneous Movement Of Water And Herbicides In Unsaturated Soils, Ming-Shyong Yang

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Since weed killers were developed in the early part of the decade beginning in 1940, herbicides have been increasing in use until they are now widely used to control weeds. The application of herbicides has thus become a regular agricultural and ecological practice.

Simultaneous Flow Of Heat And Water In Plant Tissue, Gaylon Sanford Campbell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Although biological phenomena may be partially described in a general way without the use of mathematics and physics, the experimental results may be more meaningful if they are analyzed on the basis of physical and mathematical laws. The complexity of biological systems has made the application to them of mathematics and physics rather difficult, and only recently has much progress been made. Although it has yet been possible to describe only a few simple biological systems by actual equations, a great deal of qualitative information may be obtained by applying physics and mathematics. Russell (1960, p. 439) said

In principle …

The Impact Of Research And Development On Income And Employment In Utah, Thomas Clark Anderson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Research and development (R&D) play an increasingly important role in the economy of the United States. Total expenditures for R&D during the decade of the 1950's were greater than in the entire history of the United States previous to that time. As a percent of gross national product, R&D has grown from 0.2 percent in 1921, to 0.4 to 0.6 percent in the 1930's and 1940's, and is now more than 3 percent.¹

Much has been said of the impact that the growth of R&D has on the general economy. R&D had also had a significant economic and sociocultural …

An Ecological Study Of Ditylenchus Dipsaci (Kuhn) Filipjev. In A Field Of Alfalfa, Shu-Ten Tseng

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Ditylenchus dipsaci (Kuhn) Filipjev. is one of the most destructive nematodes to crop plants. It attacks and damages more than 300 species of cultivated and uncultivated plants. The nematode can be differentiated into many races, each of them having a preference for a group or even a single plant species.

Alfalfa stem nematode is one of the races in this species which attacks the above ground portion of alfalfa but does not infest the roots. Larvae of this nematode may migrate from the plant tissue to soil in moist conditions. These nematodes migrate actively to nearby plants or are carried …

A Study Of Amino Acid, Protein, Organic Acid And Carbohydrate Changes Occurring During Germination Of Peach Seeds, Lee Chao

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Conditions required for seed germination are different among species. Some seed of tropical and subtropical plants may germinate before the maturation of their fleshy fruit, e.g. papaya species, while seed from most deciduous trees have a period of after-ripening before germination. The after-ripening period, also referred to as rest or dormancy has also been observed in some vegetable crops and ornamental flowers.

Studies On Amino Acid Balance In Three Fish Meals, Krachang Wisutharom

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

High levels of fish mean cannot be used in chick diets in the United States because of the relatively high cost as compared to soybean meal. In certain areas or countries where large amounts of fish meal are produced, it may be economically feasible to use fish meal as the major protein supplement in the poultry rations.

Feed consumed by poultry must provide most of the materials the birds need for growth or to produce eggs. Those who formulate feed must select ingredients and combine them in proportions which will allow the bird to grow or produce eggs at the …

The Complex Formation Of Silver Ion With Ribonucleic Acid, Guanosine, Inosine And Related Compounds And Peroxidase-Like Activity Of A Haemundecapeptide Prepared From Horse Heart Cytochrome C, José Angel Reinosa

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The importance of nucleic acids in plant and animal cells as carriers of genetic information and as protein biosynthesis agents is well recognized. It is also known that nucleic acid is a component of all viruses.

Takahashi (45) and Fraenkel-Conrat (16) demonstrated that the protein component of tobacco mosaic virus is non-infectious to the host plant, although it is identical to the original virus morphologically. The virus ribonucleic acid (RNA) alone was infectious, however.

Deoxyribonucleic acid (DNA), which is present in chromosomes, displays a very specific function. The chromosome long has been accepted as the carrier of the hereditary unit, …

Saponin Content And Some Pod And Blossom Characteristics Of Alfalfa As Related To Seed Infestation By The Alfalfa Seed Chalcid, Ronald D. Morse

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The alfalfa seed chalcid, Bruchophagus ruddi Guss., is a jet-black hymenopteran wasp. The destructive nature of this pest has been recognized since the latter part of the nineteenth century. Every year thousands of acres of alfalfa seed are destroyed, with infestation reaching as high as 8 5 percent in some areas. In Utah the chalcid annually ruins from 5 to 25 percent of the alfalfa seed. Much of this damage goes unnoticed, as infested seed is commonly blown out in the trash during harvesting and cleaning operations . The extent of damage is not restricted to the United States. Wherever …

An Evaluation Of Conservation Reserve Lands In Relation To Pheasant Production And Survival, Richard M. Bartmann

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The ring-necked pheasant (Phasianus colchicus) is one of the most important upland game species over much of the nation. It is also one of the most difficult to effectively manage for the increasing hunter population. The high value of agricultural lands renders habitat improvement programs by state agencies a financial impossibility except on an extremely localized basis. Therefore, the primary pheasant management tool largely remains hunting season manipulation.

The federal government through various agricultural programs may have an influence upon pheasant habitat. Public Law 540 entitled "Agricultural Act of 1956," more commonly referred to as the "Soil Bank …

Jack London: Master Craftsman Of The Short Story, King Hendricks

Faculty Honor Lectures

In November of 1898 Jack London, aged 22, sold his first short story, "To the Man on Trail," to Overland Monthly for the sum of $5. Three months later The Black Cat magazine paid him $40 for "A Thousand Deaths." This was the beginning of a writing career that in 17 years was to produce 149 short stories, not including his tramping experiences which he published under the title of The Road, 19 novels, and a number of essays. If all were accumulated and published, they would fill 50 volumes. Besides this, he wrote a number of newspaper articles (war …

The Utah Juniper, Volume 37, Utah State University

The Utah Juniper

Annual publication of The Utah Foresters, Utah State Agricultural College.

Notes On Triepeolus Remigatus (Fabricius), A "Cuckoo Bee" Parasite Of The Squash Bee, Xenoglossa Strenua (Cresson) (Hymenoptera: Apoidea), George E. Bohart

All PIRU Publications

No abstract provided.

Utah State University Commencement, 1966 – Main Campus, Utah State University

Commencement Programs

Seventy-Third Annual Commencement of Utah State University

An Ecological Study Of Aspen Forest Communities, Kimball T. Harper

Aspen Bibliography

No abstract provided.

Influence Of Fire On Aspen, K. W. Horton, E. J. Hopkins

Aspen Bibliography

No abstract provided.

Review Of Silvicultural Research: White Spruce And Trembling Aspen Cover Types, Mixedwood Forest Section, Boreal Forest Region, Alberta-Saskatchewan-Manitoba, J. M. Jarvis, G. A. Steneker, R. M. Waldron, J. C. Lees

Aspen Bibliography

The Department of Forestry has been carrying on silvicultural research in the white spruce (Picea glauca (Moench) Voss) and trembling aspen (Populus tremuloides Michx.) cover types in the Mixedwood Forest Section of Alberta, Saskatchewan and Manitoba for about 40 years. Because of the needs of industry most of this research has been focused on spruce, and only as small portion on aspen. Much of the research is concerned with basic problems and the findings in one area may be applied directly or with minor modification throughout the entire Mixedwood Forest Section. Only a minor part of the total …

Proceedings Of A Summer Institute In Water Resources: Volume 1 - Philosophical, Institutional, And Legal Aspects Of Water Resources, Cleve H. Milligan, Charles E. Corker, Wayne D. Criddle

Reports

Foreward: Recognizing the need for training of individuals to meet the rapidly rising problems connected with water resources development, Utah State University, with National Science Foundation support, organized a Summer Institute in Water Resources for college teachers. it was hoped that participants carefully selected from all regions of the country would receive additional insight and stimulation to improve and enlarge water resources training programs at their own institutions. Thus, the accelerated dissemination of such knowledge on a national scale could be facilitated. Realizing further that the key to a successful institute of this nature lay in the excellence of its …

Proceedings Of A Summer Institute In Water Resources: Volume 4 - General Principles Of Water Resources Planning, Aaron Wiener, P. Zusman, W. R.D. Sewell, Harvey O. Banks

Reports

Foreward: Recognizing the need for training of individuals to meet the rapidly rising problems connected with water resources development, Utah State University, with National Science Foundation support, organized a Summer Institute in Water Resources for college teachers. it was hoped that participants carefully selected from all regions of the country would receive additional insight and stimulation to improve and enlarge water resources training programs at their own institutions. Thus, the accelerated dissemination of such knowledge on a national scale could be facilitated. Realizing further that the key to a successful institute of this nature lay in the excellence of its …

The Life Cycle And Social Organization Of Bees Of The Genus Exoneura And Their Parasite, Inquilina (Hymenoptera: Xylocopinae), Charles D. Michener

Mi

No abstract provided.

Utah Farm & Home Science Vol. 26 No. 2, June 1965

Utah Science

Some insects are on "our side," by B. Austin Haws and Donald W. Davis 31

Salmonellosis: a constant threat to animals, by Ross A. Smart and Robert V. Davis 34

Up-grading irrigated pastures - The role of alfalfa, by Keith R. Allred 36

New research facilities at Bear lake, by William T. Helm 40

The value of alfalfa meal for growing-fattening hogs, by Hyrum Steffen, James A. Bennett and Gordon Ashcroft 42

Hormones, plants, and profits, by David R. Walker and Lois M. Cox 46

Leaching salt from the soil - Does it matter how it is done, by Kack …

The Importance Of Farm Management In The Under-Developed Economics, Hardev Singh Dhaliwal

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Throughout the history of mankind there always have been famines, disease, and poverty in some parts of the world, and this has been because of economic under - development to a great extent. For nearly a century after the publication of Adam Smith's "Wealth of Nations" in 1776, economic development was the main interest of economists . In the late nineteenth century, Europe, America, and Australia were developing rapidly and few people were interested in raising the incomes of Africans, Arabs, and Asians . Most of the countries in Africa and Asia were under European colonial rule, and being so, …

A Study Of Insects Attacking Douglas-Fir Cones In Cache National Forest Utah, Jerald E. Dewey

Biology

Insects that destroy the seeds of forest trees have an important bearing on reforestation. If a high percentage of a seed crop is destroyed in any year, seed collecting may be unprofitable, and nursery establishment and planting will be greatly hampered. A loss of seed may seriously threaten the natural re-establishment of commercially valuable tree species particularly on turned or cutover lands, where timing of seeding may be highly critical (Keen, 1958). Douglas-fir is one of this country's most valuable timber trees. Presently in the western United States about 24 million acres of commercial forest land are classified as Douglas-fir …

A Genetic Study Of A Nonpupating, Melanotic Tumorous Mutant Of Drosophila Melanogaster, Gary V. Petersen

Biology

Melanotic tumor formation and failure of pupation have been reported in a tumorous head stock of Drosophila melanogaster. The lethal effect has been correlated with stretching of the salivary gland chromosomes near the chromocenter and changes in the puffing patterns of the chromosomes (Rodman, 1963, 1964). The genetic basis of this phenomenon has not been elucidated however.

Uterine, Ovarian And Adrenal Proteases In The Normally Cycling And Pseudopregnant Rat, Royal Allen Rich

Biology

The complex endocrine involvement with the reproductive process was all but unknown until the second decade of the present century. The first biologically active steroid was isolated in 1929. This accomplishment encouraged many investigators in the field of reproductive physiology. The untiring efforts of these scientists provided the foundation upon which current investigators continue to develop our understanding of the reproductive process.

Direct Effects Of Irradiation On The Biosynthesis Of Androgens By Testicular Tissue, C. Gordon Simpson

Biology

The increased usage of various types and sources of radiation in medicine and space explorations merits a closer examination of the effects of ionizing radiations on living matter. Although considerable research has been conducted in this field, many problems still remain unsolved. Of the many studies on the effects of radiation on the mammalian organism, very little information is available as to the effects of this treatment on the endocrine aspects of the testes. The objective of this investigation is to ascertain if irradiation has an immediate and direct effect on steroidogenesis by the testes.

Seasonal Movements And Habitats Of Chipmunks (Eutamias) In Montana, David L. Martinsen

Biology

Since most small mammals are nocturnal or secretive in their habits, the use of indirect methods, such as live trapping, has been necessary to study their activities. Given a network of traps, the assumption basic to all capture-mark-recapture studies is that the traps do not markedly interfere with the normal activities of the animal. An important corollary would be that the frequency of capture in any area reflects the intensity of use of that area by the animal. Some workers have obtained results which cast doubt on the validity of these assumptions (Hayne, 1949), yet other studies support their worth …

The Developmental Expression Of Tumorous Head In Drosophila Melanogaster, Lewis M. Mulkay

Biology

This study has been undertaken to determine the developmental sequence of the tumorous head phenotype from its first expression in the late first instar larva or early second instar larva as reported by Thelander (1950), to the form taken by such growths in the adult fly as reported by Newby (1949). Because Thelander did not determine the specific time of first expression, a part of the present problem was to determine that time as precisely as possible. It was hoped that serial sectioning of the larval forms would allow a pattern of development to be formulated and a mechanism of …