Digital Commons Network^™

Anther Development In A Male Sterile Line Of Corn, Richard J. Vogl

Bachelors’ Theses

Production of viable pollen through growth and differentiation of the anther appears to depend on the interaction of the tapetum and sporogenous tissue. Very little is known about the nature of this interaction. One way to approach this problem is to study the development of the anther in cases where no viable pollen grains are produced. Highly inbred lines of male sterile corn which are completely pollen sterile have been obtained and are available for study.

Effects Of Season, Spacing And Intensity Of Seeding On Emergence And Survival Of Four Wheatgrass Species In Central Utah, Edwin B. Abbott

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Rehabilitation of deteriorated and abused range lands is being accomplished with greater success each year by the aid of better methods of seeding which include seedbed preparation, intensities of seeding, implements for planting and improved methods of eliminating competition. Much more information is needed, however, in order to recommend suitable methods and species for seeding various vegetation types and sones with reasonable reliability. Throughout the arid and semi-arid range lands, moisture is the principal factor limiting satisfactory seedling establishment. Special attention should therefore be given to more efficient utilization of the moisture supply. Closely related species or species with similar …

The Effects Of Fertilizers On The Yield, Carotene Content And Tocopherol Content Of Ranger Alfalfa Hay In Utah, Charles Wm. Jones

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Alfalfa is generally regarded as one of the world's most valuable cultivated forage crops. Few crops, if any, are equal to it in capacity to produce heavy yields of highly nutritious, palatable feed. A combination of desirable attributes as a forage plant and adaptation to a wide diversity of soil and climatic conditions has led to the use of alfalfa in the world to an extent probably exceeding that of any other single legume or grass. Alfalfa constantly proves itself as a valuable feed for most types of livestock. This is especially true in the states where a large amount …

The Sixty-Fifth Session Of The Iowa Academy Of Science And The Twentieth Convention Of The Junior Academy Of Science Of Iowa, April 17 And 18, 1953, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.

Ants Of An Old-Field Community On The Edwin S. George Reserve, Livingston County, Michigan, Mary Talbot

Faculty Scholarship

Not available.

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 .

Problems In The Development Of Social Behavior And Communication Among Insects, Charles D. Michener

Mc

No abstract provided.

The Dignity Of The Practice Of General Medicine, Frank J. Sladen

Henry Ford Hospital Medical Journal

No abstract provided.

Bulletin No. 358 - The Rainbow Trout In Relation To The Other Fish In Fish Lake, William F. Sigler

UAES Bulletins

The coast rainbow Salmo gairdnerii irideus Gibbons is not indigenous to Utah. Its original range is Pacific North America from Alaska to Mexico. The coast rainbow was first introduced into Utah in 1883 from McCloud River, California.

The rainbow is used more extensively for artificial propagation than any other trout in North America, both for sport fishing and as a commercial food fish. Its natural habitat is big lakes and rivers; it can adapt itself to relatively small ponds, but it does not reproduce in these ponds.

Limnological and fishery investigations on Fish Lake were initiated in 1922 and have …

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 …

Ellis William Shuler, Ph.D., Ll.D., S. W. Geiser

Field and Laboratory

When Dean Shuler retired from the deanship of the Graduate School of Southern Methodist University last September, the university lost from active teaching the last member of its original faculty of 1915. As associate professor and professor of geology for thirty-seven years, and as chairman of the Graduate Committee, or dean of the Graduate School for thirty years, Dean Shuler has been one of the bulwarks of the developing university. The editors of FIELD & LABORATORY take lively satisfaction in dedicating this volume of the journal to Dr. Shuler.

Historical Approach To The Problem Of Training Geologists, Claude C. Albritton Jr.

Field and Laboratory

No abstract provided.

Radicinin: A New Pigment From Stemphylium Radicinum / D. D. Clarke F. F. Nord Department Of Organic Chemistry And Enzymology, Fordham University, New York 58, New York, Donald Dudley Clarke Phd, Friedrich F. Nord

Chemistry Faculty Publications

No abstract provided.

Avian Botulism Information On Earlier Research

United States Fish and Wildlife Service: Publications

Over the years, the disease, avian botulism, has been an important factor limiting populations of waterfowl, particularly in the West. Great numbers (doubtless millions) of ducks have died from this disease, and because of such heavy tolls, studies of the malady were begun early in the century and continued intermittently to the present time.

This summary brings up to 1950 the series of investigations on botulism by Wetmore (1918), Kalmbach (1930, 1932), Kalmbach and Gunderson (1934), Sperry (1947), and others. This information has been compiled as a service to those concerned with conservation of our waterfowl resources. A cooperative agreement …

An Annotated List Of The Orthoptera Of Nebraska Part Ii The Tettigidae And Acrididae, Harold A. Hauke

Bulletin of the University of Nebraska State Museum (1924–2023)

This is the second of a series of papers on the Orthoptera of Nebraska. It is a continuation of the revision of an unpublished thesis on this subject by the author in 1934.

Influence Of Certain Soil-Proftle Characteristics Upon The Distribution Of Roots Of Grasses, R. L. Fox, J. E. Weaver, R. C. Lipps

Papers of John E. Weaver (1884–1956)

A method has been devised by Weaver and his coworkers (15) by which a root system may be sampled from the soil surface to a depth of maximum root penetration. The root system may then be separated from the soil without vertical displacement, photographed, and compared with soil profile characteristics. In the present investigation an attempt has been made to relate some chemical and physical properties of the soil to root distribution.

The Citrus White Fly, C F.H Jenkins, D G. Shedley

Journal of the Department of Agriculture, Western Australia, Series 3

For the first time in Western Australia the citrus white fly was recorded on lemon trees at Maddington in 1950 and since then it has been found to be widely distributed in the Maddington-Gosnells area and in scattered situations in the Darling Range, Middle Swan and Perth suburbs. It is also of interest to note that the insect appeared in Mildura citrus orchards in Victoria (Anon 1952), about the same time as it was reported from Western Australia, although there appears to be no explanation for its sudden dispersal over the continent.

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 …

Research In Agriculture 1951-1952: Annual Report., W G. Taggart

LSU Agricultural Experiment Station Reports

No abstract provided.

Translation Of Bogolepova, I. I. 1953. Gregariny Iz Zaliva Petra Velikogo [= Gregarines From The Gulf Of Peter The Great]. Trudy Zool. Inst. Akademie Nauk Sssr 13: 38-56, I. I. Bogolepova, Frederick K. Plous Jr.

Harold W. Manter Laboratory of Parasitology: Library Materials

Translation number 25, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States (18 pages)

Translation of Bogolepova, I. I. 1953. Gregariny iz zaliva Petra Velikogo [= Gregarines from the Gulf of Peter the Great]. Trudy Zool. Inst. Akademie Nauk SSSR 13: 38-56

Translated from Russian by Frederick K. Plous, Jr. and edited by Norman D. Levine

Studies On The Respiratory System Of The Poky Strain Of Neurospora, Alfred Tissieres, Herschel Mitchell, Francis A. Haskins

Department of Agronomy and Horticulture: Faculty Publications

It was shown recently that the poky strain of Neurospora accumulates large amounts of cytochrome c, but is deficient in cytochromes a and b and thus in cytochrome oxidase and succinic acid oxidase activities (1). These findings, which suggest that respiration in poky does not utilize the cytochrome system, led to a study of the respiratory system of poky compared with that of wild type. The experiments reported here are concerned with the effects of the inhibitors cyanide and azide on the respiration of intact mycelium of poky and wild type, the oxygen uptake of cell-free extracts in the …

Cytochromes And The Succinic Acid Oxidase System Of Poky Strains Of Neurospora, Francis A. Haskins, Alfred Tissieres, Herschell K. Mitchell, Mary B. Mitchell

Department of Agronomy and Horticulture: Faculty Publications

Recent investigations in this laboratory (1) have demonstrated that in Neurospora crassa growth characteristics representing at least two stable states are possible with the same constitution of nuclear genes. If a slow growing strain, designated poky, functions in a cross to wild type as the "maternal" or protoperithecial parent, then all progeny from the cross exhibit the poky character. If the cross is made in the reverse, or reciprocal manner, that is, with the wild type strain functioning as a protoperithecial parent, then all progeny are normal in growth rate.
During the course of the work on inheritance it was …

Concerning The Site Of Nitrogen Absorption In Rats Fed Autoclaved Or Raw Soybean Oil Mea, Raymond Borchers

Department of Biochemistry: Faculty Publications

Carroll, Hensley, and Graham (1) have concluded that much of the nitrogen absorption in rats fed raw soybean oil meal must take place in the cecum. This conclusion was reached from data showing that the apparent digestibility of raw soybean nitrogen in the terminal 20% of the small intestine was 32.65%, whereas in the feces the value was 76.96%. Values reported, for apparent digestibility of heated soybean nitrogen were 78.66% and 81.78%, respectively. This observation presented a notable advance in explaining the lower nutritive value of raw soybeans compared with autoclaved soybeans. It therefore seemed advisable to repeat this work …

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

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.

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

LSU Historical Dissertations and Theses

No abstract provided.

Bulletin No. 357 - Biennial Report, 1950-1952, R. H. Walker, D. A. Broadbent

UAES Bulletins

For sixty-four years the Utah Agricultural Experiment Station has been studying the problems of the farmer to make life on the farm more profitable and more enjoyable and in turn to improve the economy of the entire state. From the laboratories and from the experimental farms have come research results that have and will continue to mean dollars and cents to the farmer and increased prosperity to the state. Here are a few brief statements of some of the results of the work during the past two years.

Bulletin 200 - Trees And Shrubs Of The Campus And East Central Illinois, Ernest Stover

Eastern Illinois University Bulletin

The keys to the trees, shrubs and vines have been revised

in an attempt to make them more usable for the beginning student.

The keys to several of the genera, pines, oaks, ashes, willows,

etc., have been rewritten and species added that were not

in the previous printings.

The key to the trees in winter has been added hoping that it

will be helpful to both teachers and students. The identification

of trees without their leaves during the winter is not only interesting

but useful.

The identification of plants is but one phase of their study.

Botany is the basic …

Book Review: "The Hermit-Philosopher Of Liendo," By I. K. Stephens, S. W. Geiser

Field and Laboratory

April 17, 1951 was the fortieth anniversary of the death of Edmund Montgomery; and on that date the Southern Methodist University Press. published the first biography of this eminent British-American philosopher. Handsome, urbane, educated in medicine at Heidelberg, Berlin, Bonn, Wiirzburg, Prague, and Vienna, member of the Royal College, of Physicians of London, this scientist-philosopher whose work was. admired by Europe's keenest intellects, lived for many years obscurely on a plantation at Hempstead, Texas. A less likely cultural home for this illegitimate son of a Scottish lord could scarcely be imagined.... This admirable biography of Edmund Montgomery (1835-1911) philosopher and …

Blood Parasites Of Some Common Texas Birds, Andrew B. Couch Jr.

Field and Laboratory

Danilwesky observed and recorded avian plasmodia in 1885. Laveran (1891) emphasized the importance of this discovery and suggested that research on bird malaria might help to solve questions on human malaria. Since then, significant papers on bird malaria have been presented by such investigators as R. W. Hegner, W. H. and Lucy G. Taliaferro, C. G. Huff, R. D. Manwell, and R. Hewitt, who studied morphology, physiology, immunity, and transmission of the parasites. Hewitt (1940) made these earlier findings readily available in his monograph on bird malaria.