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Improvements In The Biological Assay Of Tobacco Mosaic Virus, Calvin Ray Lamborn

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Bean plants which were most susceptible to tobacco mosaic virus (TMV) were selected from more than 1,000 plant introductions. Thirty-eight percent of the lines tested developed local lesions, an indication of susceptibility to TMV. Six percent were better local lesion hosts than the commonly used bean variety (Pinto). Some lines were nine times more susceptible than the variety Pinto. Selections from P. I. 164353, 165455, 273673, 227379 and 223006 appeared to be the best local lesion hosts. A selection from P. I. 223006 produced lesions which were larger, lighter in color and slower developing than those of any other line …

Gas Chromatographic Determination Of Changes In Concentration Of Pipecolic Acid And Other Free Amino Acids In Hypersensitive Tobacco Plants Induced By Tobacco Mosaic Virus And Temperature, David Francis Brown

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Changes in concentrations of pipecolic acid and other free amino acids in Nicotiana tabacum, L. cv. Xanthi induced by tobacco mosaic virus (TMV) incubated at 75 or 95 F after inoculation were investigated gas chromatographically. A preliminary extraction and gas chromatographic technique for separation and quantitative determination of the free amino acids, using hydroxyproline as an internal standard, was developed.

Amino acids were converted into their trifluoroacetyl n-butyl (TAB) derivatives and gas chromatographed on 0.325 percent ethylene glycol adipate (EGA) columns. Resolution was generally good, but glycine-isoleucine and phenylalanine-aspartic acids were not resolved on old columns. The over-all …

Aggressive Man And Aggressive Beast, Allen W. Stokes

Faculty Honor Lectures

Whether man can live in harmeny with his environment depends in great measure en his ability to' live with his fellew man. Can man learn to' engineer human seciety in time to' prevent a helecaust? Mere specifically, can we learn to' prevent aggressien er to' channel it harmlessly? The ethelegist leeks upen man's behavier as just part ef the tetal spectrum ef animal behavier. Therefere, much of what we learn abeut the behavier ef lewer animals sheuld relate to' human behavier.

Aggressien is in the headlines every day, and in the past few years there has been a 'Steady stream …

A National Program Of Research For Bees And Other Pollinating Insects And Insects Affecting Man, U.S. Department Of Agriculture

An

The United States Department of Agriculture and State Agricultural Experiment Stations are continuing comprehensive planning of research. This report is a part of this joint research planning and was prepared under recommendation 2 (page 204, paragraph 3) of the National Program of Research for Agriculture.

Utah Science Vol. 30 No. 1, March 1969

Utah Science

Bloat on dry alfalfa hay and legume pasture, C. R. Acord, J. E. Butcher, and D. W. Thomas 3

Utah's too salty earth, Lois M. Cox 6

Beef production on irrigated pasture - a profitable alternative, Clair R. Acord 7

Soil cement linings for canals, C. W. Lauritzen 10

Bighorns along the Wasatch, Lois M. Cox 15

Louse-like keds cause sheepskin defects 16

Wildlife notes 16

Utah Science index for volumes 27 -29 17

New publications 23

Caecal worm may cause chukar loss 123

Utah again free from hog cholera 124

Proposal - 1969, International Biological Program

Proposals

No abstract provided.

Utah State University Commencement, 1969 – Main Campus, Utah State University

Commencement Programs

Seventy-Sixth Annual Commencement of Utah State University

General Catalog 1969-1970, Utah State University

University Catalogs

General Catalog of 1969-1970

Contains course descriptions, University college calendar, and college administration.

Utah Science Vol. 29 No. 4, December 1968

Utah Science

Research on public land pricing policies at USU, N. Keith Roberts and Darwin B. Nielsen 95

Wildlife notes 98, 124

Now let's get it straight 98

Production and quality of cherry raisins and pickles, D. K. Salunkhe, H. R. Bolin, and N. Suthivanit 99

Mosquitoes love you? - here's the reason 102

Agricultural research serves nation 102

Apple production in northern Utah, Demetrios Agathangelides 103

X-disease of sweet cherries, Bryce N. Wadley and J. LaMar Anderson 108

New chemical may aid mechanical harvesting of sweet cherries, J. LaMar Anderson 111

Farm planning for weed control, D. C. Tingey 114

Exotic …

Utah Science Vol. 29 No. 3, September 1968

Utah Science

New USU President takes office - as of July 1 63 Food retail price differences, Roice H. Anderson 63

The green belt amendment and its probable impact on assessed values, taxes and mill levies in Salt Lake County, Rondo A. Christensen and Fred Degiorgio 64

New rules for an old game - bioclimatology - a practical science, Lois M. Cox, Gaylen L. Ashcroft, and E. Arlo Richardson 69

Growth rates for dairy herd replacements, Robert C. Lamb and Lamon L. Perkes 75

New publications 79

Research - the solid base of agriculture and industry, Director K. W. Hill 80

Hungry? …

General Catalog 1968, Summer, Utah State University

University Catalogs

General Catalog of 1968 Summer

Contains course descriptions, University college calendar, and college administration.

Utah Science Vol. 29 No. 2, June 1968

Utah Science

President Chase retires June 30 - Utah State University 31

Grazing vs. wheat production on marginal Utah cropland, John P. Workman and Jack Hooper 32

Help for the desert bighorn, Lanny Wilson, Larry Farnsworth, and Lois M. Cox 34

Pneumonia drugs fight some plant diseases 36

Assessing farm land according to its value for agricultural use, Rondo A. Christensen 37

The reluctant jumpers, J. Juan Spillet and Lois M. Cox 41

Llama reproduction - a South American problem, Warren C. Foote, Barry G. England, and Millard E. Wilde 43

Breeding bees to the crop, William P. Nye and Otto Mackensen …

Development Of Eimeria Bovis In Cultured Mammalian Cells, Ronald Fayer

Biology

Cell line and established cell line cultures were tested for their ability to support in vitro development of Eimeria bovis. Among the cell types tested were embryonic bovine kidney, spleen, thymus, testicle, intestine and trachea cells, embryonic human intestine cells, mouse L cells, and Madin-Darby adult bovine kidney cells. Monolayer cell cultures were serially propagated in disposable prescription bottles and transferred to Leighton tubes for use in experiments. Coverslips from Leighton tube cultures inoculated with sporozoites were examined with phase-contrast or Zeiss Nomarski interference contrast microscopy for as long as 21 days after inoculation. After examination, coverslips were fixed …

Local Distribution In A Population Of Uinta Ground Squirrels, Robert Edgar Walker

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In an attempt to describe, explain, and show the demographic significance of annual variations in the nesting distribution of Uinta ground squirrels, a study was conducted during the summers of 1964 through 1967 in northern Utah. Procedures included both trapping and direct observation.

It was found that females tended to nest in open, previously inhabited, grassy areas. Males resided throughout a variety of habitats.

This typical nesting distribution was established initially in the summer by juveniles shortly after they first appeared aboveground. The extent to which the distribution was maintained the following spring depended largely upon the number of female …

Effects Of Ripening Processes On Chemistry Of Tomato Volatiles, Bharat Manu Shah

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Investigations were carried out to isolate, identify, and to characterize, major volatile components of tomato fruit. Simultaneously, the confirmation was extended to the reported tomato volatiles. The volatile extracts from field- and artificially-ripe fruits were compared qualitatively as well as quantitatively. The changes which occurred in the volatile components of the fruit at the onset of senescence also were delineated.

A typical chromatogram from field-ripe tomatoes contained 60 peaks. The functional group properties of individual peaks were derived by chemical analysis. The short-chain (C₃-C₆) alcohols represented 10 per cent, aldehydes and ketones 32 per cent, and …

Biosynthesis Of Piperidine-2-Carboxylic Acid In Fluoride-Necrotic Glycine Max, Susan S. Martin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Synthesis of piperidine-2-carboxylic acid (pipecolic acid) in soybean was studied by infiltration of radioactive carbon labeled precursor and by experiments using enzyme extracts from control and fluoride-fumigated plants.

Pipecolic acid was synthesized from lysine in both control and treated plants. Normal plants, in which pipecolic acid had not been detected by conventional procedures, were capable of synthesizing pipecolic acid. Greater pipecolic acid synthesis was shown in treated plants than in controls, and was attributed to increased enzyme concentration induced by fluoride treatment.

Computer Analysis Of Consumer Attitude And Consumption Data For Fluid Milk Products, James Reed Fisher

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

The American public, with a per capita disposable income currently at an all time high, has become a source of vital concern to dairy market researchers. The unique socio-economic structure of the present generation causes the dairy industry to be concerned with how the consumer view its products. Effective education and advertising programs must be developed to attract the taste and meet the demands of the consumer.

Two factors which greatly influence market research and advertising programs are the attitude of the consumer toward a given product and the relationship of attitude to the degree of actual milk consumption. To …

Ascorbic Acid And Its Deficiency, Choon-Yul Yang

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

The purpose of this monograph was to collect into one paper as much as possible of the existing literature on the subject of ascorbic acid, and to present a comprehensive account of the studies on ascorbic acid metabolism which have established the symptoms of the deficiencies and pathology involved, the functions, and methods of prevention or control of these deficiencies.

Nutrition During Pregnancy, Lactation And Infancy, Minodokht Froozani

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

In many countries in South and East Asia, most diets are defective in quality, even when there is not a severe shortage of food. They do. not provide an adequate quantity of essential nutrients. One of the most severe deficiencies is in good quality protein. The solution to this problem is to produce and provide the right kinds of foods and to establish national food production policies which should make it possible to plan a better balanced diet based on sound nutritional principles and modern knowledge of nutritional requirements. Some degree of undernutrition, over-nutrition, or malnutrition occurs in most European …

Development And Control Of Licking Behavior In The Guinea Pig (Cavia Porcellus), Jack R. Alvord

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Four non-licking guinea pigs were reinforced with water for successive approximations to licking an operandum feeder. Once all subjects had obtained their total liquid intake for a three-week period by licking, an optimum deprivation schedule was determined.

Fixed ratio and variable interval schedules were found to affect licking behavior of the guinea pig in a similar way as with the rat, mean lick rate of guinea pigs being slightly lower than that of the rat. Precise control over the onset and offset of licking was demonstrated through discrimination training.

Food And Nutritional Needs Of The World Population By 2000 A. D., Sitaram Shankar Kharbas

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Investigations were carried out to project the food needs of the world population by 2000 A. D., and to explore the possibilities of meeting these requirements.

About 70 percent of the world population presently living in developing countries do not get adequate diets, and suffer from many diseases of under-nutrition and malnutrition. They are unable to increase food production themselves. People in the developed nations have enough food and their food production is increasing at a rate faster than the rate of growth of population.

Cultivable land is the main source of food for man. The seas can also be …

Physio-Chemical And Toxicological Studies On Controlled Atmosphere Storage Of Certain Deciduous Fruits, Neil Adair Littlefield

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effects of controlled atmosphere on the metabolism of Golden Delicious and Rome Beauty apples, Anjou pears, and Lambert and Bing cherries were studied with respect to changes caused in the normal metabolic functions carried on during storage of these fruits. Atmospheres consisting of 1.5 per cent CO₂ and 2.5 per cent O₂ for the apples and pears and 10.5 per cent CO₂ and 2.5 per cent O₂ for the cherries were employed.

Fungi of the strains Botrytis alli, Rhizopus nigricans, and Penicillium expansum were subjected to controlled atmospheres at 21° C to determine …

Isolation, Identification, And Comparison Of The Volatiles Of Peach (Prunus Persica L., Cultivar, Gleason Early Elberta) Fruit As Related To Harvest Maturity And Artificial Ripening, Joseph Yungsheng Do

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Volatiles of peach (Prunus persica L., cultivar, Gleason Early Elberta) fruit were studied by gas-liquid chromatography, thin-layer chromatography, and infrared spectrometry. Hard mature, firm mature, soft mature, tree ripe, and artificially ripened hard mature fruit obtained from four seasons, 1964 to 1967, were used. A total of 86 peaks were observed in the chromatogram of the tree ripe peach volatiles. Major components of the volatiles identified were mainly esters, gamma and delta lactones, aldehydes, alcohols, and terpenes. In general, concentration of the volatile components were found to increase with the maturity of the fruit. However, that of the artificially …

Adaptive Changes Of Some Enzyme Activities In Rats And Humans To Dietary Protein, Jung Ja Kim

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A study of the adaptive changes of some enzyme activities to the dietary protein intake was made in the liver, kidney, and pancreas of rats and serum of humans.

The rats fed the 40 per cent casein diet had a higher rate of weight gain and the weights of the liver and kidney were higher than in the rats fed the 10 per cent casein diet.

Three enzymes involved in the elimination of excess nitrogen from the body were found to show a similar response to increased dietary protein intake. These enzymes were: D-amino acid oxidase in the kidneys, arginase …

Extraction Of Rennet From Fresh Frozen Vells, Neil Harvey Clarke

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A method was developed for the extraction of rennet from fresh frozen vells. Frozen vells were partially thawed and minced in a Hobart "Wonder worker." The tissue was treated with 2.0 per cent potassium alum and allowed to stand for 20 hours before sufficient 0.45 M disodium phosphate was added to bring the pH of the mixture to 5.7. Dry sodium chloride was added until the salt concentration in the moisture of the mixture was 10 per cent. The tissue was then mixed with 3/4-inch pumice gravel in a volume ratio of 1 to 2 and packed into extractor columns. …

Relationships Between Foster Home Placement And Later Acculturation Patterns Of Selected American Indians, Robert Dean Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A survey was made of the graduates of an educationally-oriented church-sponsored foster home placement agency. The subjects for the study had been graduated from high schools in Idaho, Arizona, Canada, and throughout Utah. There were 235 students graduated during the period 1954-1967. The survey of these subjects was made by the use of the mailed questionnaire method. Responses were received from 165 (70.21 percent) of the subjects.

The investigator was searching for modal patterns of behavior among the graduates. Some significant trends seem to be emerging in their post-high school activities. Implications for future studies of the culturally disadvantaged are …

Development And Evaluation Of A Waiver Examination For The Introductory Foods Course At Utah State University, Virginia Clark Bragg

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A written objective-type waiver examination for the introductory foods course at Utah State University has been developed and evaluated.

Results of the study showed that the examination improved with revision. In addition, it was found that there was a statistically significant relationship between the score students achieved on the waiver examination and the total numerical score representing the final grade in the basic foods course.

There was apparently no significant relationship between the number of years experience students had in food preparation, the type of experience in food preparation, and their performance on the waiver examination. Apparently depth of knowledge …

The Effect Of Oven Temperature, Cooking Method, And Breed On The Tenderness, Juiciness, And Flavor Of Beef, Carma B. Stembridge

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effect of oven temperature, dry-roasting, and breed on the eating quality of beef was determined by sensory and objective methods. Two adjacent standing rib and two adjacent chuck roasts of prime, choice, and good grades from animals of Hereford, Shorthorn, and Charolais breeding were dry-roasted. Control roasts (9-12th ribs) were cooked at 325 F. Experimental roasts (6-8th rib and two chucks) were assigned an oven temperature of 325 or 250 F at random. All roasts were allowed to reach ah internal temperature of 155 F as recorded on a potentiometer.

Tenderness, as determined by a Warner-Bratzler shear, was greater …

5 Β- Pregnane- 3Α- 20Α- Diol Excretion In Urine Of University Women During The Menstrual Period, Rita Shin-Hui Liao

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Five normal healthy young university women while on self-chosen diets and living under normal conditions served as experimental subjects in this study. Urinary pregnanediol was measured for 10 days of the menstrual cycle. Meal frequency (3 meals vs. 2 meals with no breakfast) was also included in the study.

A modification of the method of Eberlein and Bongiovanni on thin layer chromatography was used to determine pregnanediol in the urine sample.

Urine pregnanediol excretion was in the pattern as investigated by other workers. The values rose in the latter half of the menstrual cycle, and fell prior to the onset …

Influence Of Pre-Fermentation Inoculations With Leuconostoc Mesenteroides And Lactobacillus Plantarum On Physico-Chemical Properties Of Fresh And Dehydrated Sauerkraut, William T. Nabors

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effect Leuconostoc mesenteroides and Lactobacillus plantarum has on the physical and chemical properties of fresh and dehydrated sauerkraut was tested. Sauerkraut inoculated with L. plantarum was slower in fermenting and significantly lower in acidity and higher in pH. Dehydration of sauerkraut by freeze-conventional hot-air and micro-wave processes produced a significant loss in volatile components, ascorbic acid , lactic acid and an increase in pH. Each of the dehydration processes caused browning of the sauerkraut . These changes were less with freeze-drying and increased with conventional hot-air drying and microwave drying. Gas-liquid chromatography confirms the loss of volatile components …