Digital Commons Network^™

Studies And Observations On Potato Powdery Mildew, Brent C. Palmer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Within the past several years, powdery mildew disease has become an increasingly important problem to potato growers in the northern part of Utah. In some fields, reduction in yield due to powdery mildew has been estimated to be as high as 30 percent (Treshow and Cannon, 1961). The disease has been reported from many parts of the world. Other than in Utah, however, the only place where it has been considered to be of economic importance is Palestine. In that country, reduction in yield has been estimated to be as high as 20 percent (Palti and Moeller, 1946).

Lactation Efficiency Of Holstein Cows As Related To Rate And Efficiency Of Growth, Charles H. Mickelsen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The relationship of quantity and quality of feed to milk production has been studied for many years. Feeding standards have been developed to systematize feeding of dairy cows according to their requirements. Recently, interest in efficiency of cows in converting feed nutrients into milk has increased.

Milk Bases In Utah And Their Effect On Total Supply Of Market Milk, Harold O. Ward

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Some of the most striking changes in the production and marketing of dairy products have occurred since World War II. Dairy farming, for instance, has become more specialized and more commercial. Modern techniques of refrigeration, bulk handling, and transportation have made it possible for market milk to be shipped many miles without appreciable loss of quality.

The Effect Of Range Condition And Intensity Of Grazing Upon The Daily Intake And Nutritive Value Of The Diet Of Sheep On Summer Ranges Of Northern Utah, Merwyn Mortimer Kothmann

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The mountainous ranges of the West are commonly used during the summer and have been used in this manner since the settlement of white men over a century ago. Many of these ranges have been mis-managed and are in poor condition. The productivity of these ranges greatly affects the economy of the nation; thus, if ranges in poor condition have a nutritive value lower than ranges in good condition, it results in an economic loss. little work has been done to determine the nutritive value of mountainous summer ranges in good condition compared to similar ranges in poor condition.

The Respiratory Chain Involved In Oxidative Phosphorylation On Higher Plants In Relation To Carbon Dioxide-Bicarbonate Inhibition, Wan-Jean Young

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Increased concentrations of CO₂ with the accompanying high bicarbonate level in the culture medium have been reported to have a depressing effect in certain plant species on growth (34), respiration (23, 33), oxidative phosphorylation (9), mineral nutrient absorption (17), certain enzymatic reactions (4, 22, 27), accumulation of organic and amino acids (11), and protein synthesis (16). Since accumulation of organic acids occurs in lime-induced chlorotic tissue together with a depression in the respiration of plant tissue, an effect on the energy transfer mechanism of such plants is suspected. Inhibition of electron transfer from the substrate level could result in …

Abundance, Movements, Harvest, And Survival Of Brown Trout And Mountain Whitefish In A Section Of Logan River, Utah, David W. Bridges

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Comprehensive population studies in the field of fisheries are in great demand. Many of our fishable waters are being changed, and we need to be able to predict the results of these habitat alterations. We must know how to include beneficial modifications in readjustments of habitat in order to create a fishery or prevent destruction of an existing one.

The acceptable situations for good fish production in large mountain streams are not well-known. A fishery can be properly managed only if the manager has sufficient knowledge of the carrying capacity of the habitat, the survival and mortality of the population, …

Leaf Ribonuclease Activity As Related To Virus Infection, And Ribonucleic Acid Concentration, Andrew Chien-Yau Hsu

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Ribonucleic acid (RNA) appears to be the entity responsible for infectivity and genetic continuity in certain plant, animal and bacterial viruses. RNA also plays an important role in protein synthesis. The enzymes which are involved in RNA synthesis and degradation have received much attention. Among these enzymes ribonuclease (RNase) has been most thoroughly studied Rnase is widely distributed and has been isolated from many sources such as snake venom, bacteria, the pancreas, and many plant and animal tissues. Most studies with RNase have been concerned with its role in the hydrolysis of RNA in vitro. Therefore, it has generally been …

The Effect Of Urea, Ammonium Sulfate, And Organic Materials On Nitrite Accumulation And Gaseous Loss Of Nitrogen In Acid Soil, Siddangouda V. Patil

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nitrogen is one of the major elements essential for plant growth. It is the element most prone to depletion by cultivation and is usually found deficient in soils. In successful farming the problem of nitrogen supply is of special importance because plants need it in large amounts, it is fairly expensive to supply, and it is easily lost from the soil.

The Biochemical Differences Associated With Iron Chlorosis In Higher Plants, Daniel Ming-Yi Teng

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Chlorosis, which is associated with a reduction in the chlorophyll content of leaves, is a major problem in the growing of deciduous fruit trees and some field crops on calcareous soil. Under various soil conditions more than one factor may be involved in the development of chlorosis in plants. A deficiency of magnesium, manganese, zinc or iron, and virus infections can induce chlorosis. It is also induced by the presence of high concentrations of phosphate, bicarbonate, manganese, copper, zinc, or numerous other factors.

Systematic Revisions Of The Genera Pseudoficimia, Gyalopion, And Ficimia (Serpentes: Colubridae)., Laurence M. Hardy

Biology ETDs

Originally, this systematic problem was concerned with the genera Ficimia Gray, Gyalopion Cope, fseudoficimia Bocourt, Conopsis Gunther, am Toluca Kennicott.

The five genera represent a problem that could include intergeneric studies of Ficimia, Gyalopion, and Pseudoficima on the one hand and Toluca and Conopsis on the other, interspecific studies of each genus, and, in some well-represented forms, intraspecific studies based on large samples from single localities.

South Dakota Farm And Home Research, Agricultural Experiment Station

South Dakota Farm and Home Research: 1949 -1998

In This Issue
Flax Seedling Blight [p] 3
Improve Alfalfa Yields [p] 5
Estrus Synchronization [p] 7
The Old Element Nitrogen [p] 10
Decay in Seed Potatoes [p] 16
Comparing Genetic Differences of Laying Hens [p] 19

Whole Issue Nebraska Bird Review (April 1963) 31(2)

Nebraska Bird Review

TABLE OF CONTENTS

A Production Study of Mourning Doves in a Shelter Belt ............ 18

Natural Adjustment of Pheasant Populations in South- Central Nebraska ...................................................................... 24

Treasurer's Report .................................................................................... 31

Alveolar Hydatid Disease Of The Liver: Rationale And Technics Of Surgical Treatment, John T. West, F. J. Hillman, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Cestodes of the genus Echinococcus cause two distinct diseases: the well-known cystic hydatid disease found in stock-raising areas, caused by E. granulosus, and the more rare alveolar hydatid disease, which is limited to the northern hemisphere and is caused by the biologically and morphologically distinct E. multilocularis.

Eight cases of alveolar hydatid disease of the liver are reported from Alaska, including three patients who underwent hemihepatectomy for advanced lesions. Radical resection is concluded to be the only rational treatment for this otherwise progressive and fatal disease.

The Economics Of Classifying Farmland Between Alternative Uses, Roger H. Willsie

Nebraska Agricultural Experiment Station: Historical Research Bulletins

At present some farm programs are aimed at reducing the acreage of land used for crop production. These programs have the objectives of reducing quantities of certain farm commodities and conserving land resources. By shifting land from the production of certain farm commodities to other commodities or to grass, total farm income may be raised and the costs of farm price support and storage programs reduced. In programs to shift land use a classification of land based on economic criteria would be useful. The primary concern of this study was with methods for identifying the economic margin between land uses; …

X-Ray Diffraction Powder Data For Steroids: Supplement Iii, Jonathan Parsons, S. T. Wong, William T. Beher, Gizella D. Baker

Henry Ford Hospital Medical Journal

No abstract provided.

Stricture And Ulceration Of The Esophagus Secondary To Hiatus Hernia, Thomas Gahagan

Henry Ford Hospital Medical Journal

No abstract provided.

Hepatosensitization Caused By Propionyl Erythromycin Lauryl Sulfate, R. Guevin, A. Ten Pas

Henry Ford Hospital Medical Journal

No abstract provided.

Studies Of Energy-Yielding Reactions In Thymus Nuclei. 1. Comparison Of Nuclear And Mitochondrial Phosphorylation., Bruce S. Mcewen, V. G. Allfrey, A. E. Mirsky

McEwen Laboratory

No abstract provided.

A Study Of The Problems Of Cost Analysis In The Petroleum Industry, Wallace F. Lovejoy, Paul T. Hofman, Charles O. Galvin

Journal of the Graduate Research Center

The significance of the subject of the present study-the cost of finding, developing and producing petroleum-can be better understood by placing it against a summary view of the supply situation in the postwar world. The most striking fact is the appearance of vast new reserves of oil in various parts of the world. Earlier concern over "conservation" was aroused by the fear of depletion of the available supply. Taking a long view, this possibility is not to be dismissed. But in recent years the practical problems of the industry, and of public policy toward it, are of a different sort. …

The Translocation Of Foliar Applied P-32 In Field Grown Corn, With Respect To Fruit Development, Theodore W. Sudia, Lauren E. Carlson, George E. Ahlgren

Journal of the Minnesota Academy of Science

No abstract provided.

Circadian Periodic Changes In Relative Specific Activity Of Mouse Brain Phospholipids, Walter Nelson

Journal of the Minnesota Academy of Science

No abstract provided.

Nutritive Value Of Red-Osier Dogwood And Mountain Maple As Deer Browse, Bernard A. Fashingbauer, John B. Moyle

Journal of the Minnesota Academy of Science

No abstract provided.

Carbon Dioxide Fixation In The Brain / Soll Berl, Genkichiro Takagaki, Donald D Clarke, And Heinrich Waelsch From The New York Psychiatric Institute And The Colleg Eof Physicians And Surgeons, Columbia University, New York, New York, Soll Berl, Genkichiro Takagaki, Donald Dudley Clarke Phd, Heinrich Waelsch

Chemistry Faculty Publications

Carbon dioxide fixation in brain was studied in cats to which NaHC14O3, with and without ammonia, was administered by intracarotid infusion. Glutamic and aspartic acids, glutamine, glutathione, and γ-aminobutyric acid were isolated from blood, brain, and liver, and their specific activities were determined. The data indicate a significant incorporation of CO2 into the amino acids of the cerebral cortex, presumably by way of the citric acid cycle. Without simultaneous ammonia infusion, the specific activity of aspartic acid is 3 times that of glutamine, whereas in the presence of ammonia the ratios of specific activity of both compounds are closer to …

A Flora Of San Clemente Island, California, Peter H. Raven

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Hints On Sampling Premium Wheat Crops, J A. Parish

Journal of the Department of Agriculture, Western Australia, Series 4

EACH year much of the premium wheat received by millers is inferior in quality to the samples on which the premium bids are based. This often leads to reduction in the premium paid.

Cereal Products Adviser J. Parish, B.Sc. (Agric), describes how samples can overestimate the quality of a crop and suggests methods of taking samples which will give a true estimate of crop quality.

List Of Departmental Publications, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

THE bulletins named in the following list are mainly reprints of articles which have appeared in "The Journal of Agriculture" and the date of the original publication has been appended to facilitate reference to bound volumes of the Journal.

Except where a price is expressly stated, these bulletins may be obtained free of charge either by applying at the counter of the Department of Agriculture or by writing to the Publications Officer, Department of Agriculture, Jarrah Road, South Perth.

If ordering by letter please quote the serial numbers of the bulletins.

Black Leg Of Cabbage And Related Plants, G C. Macnish

Journal of the Department of Agriculture, Western Australia, Series 4

BLACK LEG is a disease which attacks many kinds of cruciferous plants.Under certain conditions it can cause serious damage.

In Western Australia it has been recorded on cabbages, cauliflowers and kales.

The dry rot form damages swedes.

Precautions For Day Old Fowl Pox Vaccination, P Smetana

Journal of the Department of Agriculture, Western Australia, Series 4

DURING 1962 day old vaccination was widely adopted as a preventative measure against fowl pox.

From June, 1961, until mid-June, 1962, this procedure proved to be highly successful, but from this date onwards a proportion of treated flocks became affected by breakdowns accompanied by mortality and retarded growth.

In some cases the losses were disturbingly high.

The Generic Position Of "Boisduvalia Tasmanica", Peter H. Raven

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Anticoagulants For The Control Of Rats And Mice, C D. Gooding

Journal of the Department of Agriculture, Western Australia, Series 4

LATELY there have been many requests for information on suitable poisons to use in baiting rats and mice.

Most enquirers have stated that they "tried a certain brand of bait" and found that the rats only "ate it up and kept coming back for more."

This article on Warfarin—as a rat and mouse poison—is presented to clear up some of the problems of rodent poisoning.