Digital Commons Network^™

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.

The Morphological And Anatomical Effects Of Pyrazon On Beans And Pigweed, James E. Rodebush

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Morphological and anatomical effects of pyrazon, 5-amino-4-chloro-2-phenyl-3(2H)-pyridazinone, on Phaseolus vulgaris L. and Amaranthus retroflexus L. were studied after treatment of seeds or seedlings at various pyrazon concentration, exposure times and environmental regimes.

Beans treated with pyrazon developed various chlorotic and necrotic symptoms on the unifoliate leaves. Chlorosis and necrosis were observed first on the leaf margins. Beans treated with pyrazon under a complete dark regime developed symptoms much later than those under an alternating light and dark regime. Pyrazon treated pigweed displayed symptoms similar to those on beans.

Pyrazon induced abnormal chloroplasts and graded cellular collapse in the unifoliate leaves …

A Study Of The Influence Of Petroleum Mulches On Several Herbicides With Selected Vegetable Crops, C. Linnis Mills

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effects of petroleum mulches on plant response to herbicides were studied at the Farmington Field Station. The herbicides were applied to the soil preemergent and by incorporation at one-half, normal and double the recommended rates with asphalt overlay. The herbicides and crops used were: Atrazine and Ramrod on sweet corn, PEBC and Diphenamid on tomatoes and EPTC and Trifluralin on snap beans.

Germination, overall crop rating, grass and broad leafed weed control and yields were measured. Data recorded from these trials showed that herbicides are as effective under the asphalt when compared to plots with herbicide but no asphalt. …

Effect Of Stage Of Seedling Development On Absorption Of Selected Pre-Emergent Herbicides, Pairoj Suchinda

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Using radioautography ¹⁴C simazine, ¹⁴C EPTC, ¹⁴C 2,4-D, ¹⁴14 DCPA and ¹⁴C pyrazon absorption by seeds of bean (Phaseolus vulgaris L.), squash (Cucurbita maxima), corn (Zea mays), onion (Allium cepa) and oat (Avena sativa) was studied. Simazine, EPTC, 2,4-D and pyrazon were absorbed through the seed coat of bean, squash, corn and onion, the amount increasing with time. Little DCPA was absorbed by seeds of bean, squash, onion and oat. Distribution and translocation of ¹⁴C simazine, ¹⁴C EPTC and ¹⁴C pyrazon occurred in …

The Influence Of Petroleum Mulch On The Germination And Yield Of Tomatoes, Clarence Frank Williams

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effects of petroleum mulches on the emergence and yield of tomatoes were studied at the Farmington Field Station, Greenville Field Station, North Logan, and the greenhouse. The mulches were applied as surface overlays above the seed or incorporating before planting.

Seedling emergence and yields were measured. Data recorded from trials conducted under cool weather conditions indicated that petroleum mulch overlays can be effective in increasing seedling emergence.

The increased seedling emergence with petroleum mulch is due to increased soil temperature, less moisture loss from the surface, and a minimum of soil crust formation.

Morphological Development In Relation To Cold Hardiness Of Dormant Peach Fruit Buds, Schuyler Dranna Seeley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The morphological development of Elberta peach fruit buds was studied in relation to their cold hardiness.

Morphological development of peach fruit buds was observed beginning with bud differentiation in mid-summer. Flower initiation was essentially complete by September. Growth was slow in the winter months but increased rapidly as anthesis approached. Photomicrographs were taken to substantiate the discussion .

Cold hardiness determinations were made from December until anthesis in April. The hardiness level was greatest during December and remained at a relatively high level until rest ended. Hardiness decreased thereafter. Major losses of hardiness occurred just prior to anthesis.

An Experimental Study Of Variation Within And Between Populations Of Petrophytum Caespitosum (Nutt.) Rydb. With Emphasis On Numerical Techniques, Frank R. Drysdale

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nine populations of sixty-eight individuals representing the distribution of Petrophytum caespitosum (Nutt.) Rydb. (Rosaceae) in the Intermountain Region were investigated for taxonomically significant variation using numerical techniques. On the basis of 19 morphological characters 3 subspecific taxa are recognized. Two taxa are existing subspecies: P. caespitosum (Nutt.) Rydb. var. caespitosum and P. caespitosum (Nutt.) Rydb. var. elatius (S. Wats.) Tides. One new subspecies is described: P. caespitosum (Nutt.) Rydb. var. latifolium. The ecology of the species is discussed. The floral and vegetative anatomy are described. Chromosome counts of 3 populations have given n = 9. A list of herbarium …

Factors Associated With The Penetration And Colonization Of Tomatoes By Verticillium Dahliae, Terry Dee Miller

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Experiments have demonstrated that Verticillium dahliae is capable of direct cortical penetration of roots and of subsequent distribution throughout plants of both resistant (Loran Blood) and susceptible (Meteor) varieties of tomato. Plants were inoculated by the root dip method and planted in sterile soil. After one week the fungus was isolated from the upper portions of both the susceptible and resistant varieties as indicated by growth petiole sections plated on PDA. The distribution of the fungus in the resistant plants was irregular, but in susceptible plants the fungus was isolated regularly from all petiole sections. In experiments using disposable growth …

The Water Permeability Of Potato Tuber Tissue, Ward Bryce Roberson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Experiments involving pressure, temperature, salt solutions, decenylsuccinic acid, a surfactant, and respiration inhibitors including azide, dinitrophenol, malonate, and iodoacetic acid were conducted to determine the extent to which the cytoplasm of the parenchymatous cells of the potato tuber influenced the tissue's water filterability.

The amount of water or solution moved through the potato tissue was measured by applying a pressure differential to the solution, forcing it across a 1.0 mm thick disc of tissue which was supported in a pressure filtration apparatus. The solution moved was collected and measured directly. In certain experiments the conductivity of dialysis membrane material was …

Effects Of Two Pathogenically Differing Isolates Of Verticillium Albo-Abrum On Tomato Growth, Leonidas Berry Camp

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A study was performed using isolates of Verticillium albo-atrum which were reported as varying in their pathogenicities to a susceptible and resistant tomato variety. Also included as objectives in this undertaking were cross-protection and effects of spore density in the inoculum on the development and severity of Verticillium wilt of tomatoes.

After retesting the strains which were reported as pathogenic variants, results suggested that reported variabilities were non-existent in most of the isolates and instead there were only two pathogenic type-categories: (a) strains pathogenic to both resistant and susceptible tomato varieties; and (b) strains pathogenic only to the susceptible variety. …

Temperature And Inoculum Density As Factors Affecting The Pathogenicity Of Rhizoctonia Solani Kühn On Radish, Paul E. Moser

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effect of temperature and inoculum density on the incidence of disease on radish caused by Rhizoctonia solani Kühn was studied. The fungus attacks radish at one or more stages during host development and causes pre- and pose-emergence damping-off, root rot, and storage-organ decay. The isolate of the fungus used in the study was obtained from infected radishes grown in Salt Lake County, Utah.

To determine the effect of temperature on the pathogenicity of R. solani on radish, soil temperatures of 15, 20, 25, and 30 C were used. Varying inoculum densities of 1360, 816, 408, 136, and 0 grams …

Description And Evaluation Of Institutions Involved In Water Allocation And Distribution In Utah, Kimber C. Webb

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Water development and allocation have been among the most important problems Utah has had to face throughout the past 117 years of development . When Utah's first white settlers, the Mormon pioneers, entered Salt Lake Valley in July of 1847, little met their eyes to entice their stay. The earth was so parched and dry that they were unable to scratch the surface with their plows. Less than two hours after their arrival members of the party began digging ditches and building dams to irrigate and soften the earth so they could begin plowing.

Seasonal, Diurnal And Species Variation In Forage Moisture Content In Relation To Site On Mountain Summer Range Of Northern Utah, Chaudhry Mohammad Sharif

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Practical assessments of range production and utilization are based on forage weight estimates. In preparing these estimates moisture content in green vegetation offers some problems. The moisture component is not likely to be constant for a given species. Diurnal, seasonal and site variability have been well illustrated for agronomic and tree species (Salisbury, 1848; Jenkins, 1879; Miller, 1917; Pearson, 1924; Watkins, 1940; Parker, 1951; Ackley, 1954; Werner, 1954; Zohary and Orshan, 1956; Slatyer, 1959; Kozlowaki, 1965 and Jame son, 1966). Since variability is also likely for range plants, computations made on green weights are apt to be fallacious. It is …

Economic Analysis Of An Iranian Water Development: The Sefeed Rood Project, Malek M. Mohtadi

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis is an evaluation of the methods and assumptions employed by those groups responsible for preparation of the original benefit/cost data describing the Sefeed Rood project. Benefit/cost ratios reported by the French engineering firm, Cotha Sogreah, and Plan Organization in a joint study range from 2:1 to 2.6:1 (6 and 10). A priori these seem suspect since the dam plus necessary canals and diversion works are obviously large and costly and only primary benefits are considered. The question is whether the potential benefits are likely to ever yield a positive return on investment and, if so, how long a …

A Study Of Input-Output Adjustments, Charles W. Briggs

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effects of using the United States input-output table to explain Israel's economic structure was studied, by comparing price data generated on the basis of the U. S. tables and prices observed in the two countries. A substantial difference between prices generated and observed led to the conclusion that the technological structure of the United States cannot be used to approximate Israel's structure.

Various adjustments were then applied to the United States coefficient matrix to determine if it could be transformed into a new technological structure which would more closely approximate Israel's economy.

Significant improvements were noted by three of …

From Silver To Skis: A History Of Alta, Utah, And Little Cottonwood Canyon, 1847-1966, Anthony Will Bowman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In this study the former mining town and present ski resort of Alta, Utah, and the Little Cottonwood Canyon (in which Alta is located) are treated as one unit of study.

After a brief treatment of the natural setting, man's earliest activities in the region are traced through the winter of 1966. Activities which are examined include: exploring, trapping, logging, grazing, milling with the major emphasis upon quarrying, mining, skiing and settlement.

Until 1864 the region was utilized for non-mining activities. By the 1870's, mining "boomed" and various settlements were established in the canyon. The most famous of these was …

Variation In The Order Of Presentation Of Cues As One Variable In Concept Organization, John E. Genasci

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In the experiment, with forty-eight students as subjects, a series of nonsense syllables (DAX, MEF, TOV, VIC, YOP, ZIP, and ZIL) were to be associated with four geometric figures. The task was so arranged that Zip applied to all figures, Dax and Vic to subsets of two figures each, and the remaining were individual labels. In each of three experiments there was an experimental group that received pre-response cueing by means of an analogy which involved hierarchic concepts in the same general form, i. e ., animal, wild, tame, and individual names.

The results suggest that the order and timing …

Soil Moisture Depletion By Quaking Aspen And Gambel Oak In Central Utah, Jere J. Christner

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Soil moisture depletion was studied in quaking aspen and Gambel oak areas of central Utah. The study area is located at about 8100 feet elevation in a zone with 20 to 25 inches precipitation annually.

Treatments ranged from no disturbance to clearcutting. Soil Moisture was measured periodically during the summer of 1966.

Results showed less soil moisture depletion on the plots of least residual basel area. Average soil moisture depletion the season following cutting at two sites was 4.3 inches less than it was on higher residual basal area plots.

The reduction in soil moisture depletion occurred principally below the …

The Adolescents Preference For Counselors In Relation To Their Degree Of Religious Conviction, James W. Fitch

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In a highly complex culture, there are numerous factors that influence ones life. The more industrialized societies promote tremendous structure for the entire population. The past World War II era has been labeled "The Age of Anxiety" (28, p.3). In some respects children are being forced to mature at an earlier age. The "storm and stress" period of the adolescent is receiving considerable recognition in our current literature and the adults are taking on increasing amounts of structure which are all resulting in more complex culture.

A Logical Classification Of And Recommendations For The Utah Education Law, Thurman M. White

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

As our society becomes more complex, it follows that the laws governing this society become more numerous and more complicated. Problems arise relative to local, state, and federal control, necessitating further interpretation and ultimately new laws. The areas where legal confusion is most obvious are those subject to control by all levels of government: local, state, and federal.

Evaporation And Evapotransipration In Venezuela, Hidalgo Guillén Echeverría

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Equations and tables for estimating Fuess evaporation from climatological data were developed. Ten years of average records from 22 stations in Venezuela were analyzed in order to develop the equations.

Mathematical regression analysis, and plotting and computer programs were used to work out the equations. The form of the final expression for estimating Fuess evaporation is as follows:
Ev = K C_RC_TC_WC_HC_DTC_SC_M
Pan evaporation was computed using the Christiansen, Mathison, Blaney-Criddle, Hargreaves, Penman, and Kohler formulas. The computed pan evaporation from these formulas, measured Fuess evaporation, and …

Development Of A Drainage Function For The Transient Case, And A Two-Dimensional Ground-Water Mound Study To Evaluate Aquifer Parameters, Seid Abdollah Jenab

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A drainage function, D (u_n), is developed to describe the rate of fall and the shape of the water table between drains for an infinite series of parallel drains. The drainage function is evaluated and presented graphically for design purposes. The solution of the drainage function is compared with the solution of Glover's transient state drainage equation. The two equations agreed very well, but the agreement was not as good for very high values of √(4αt)/ L.

The drainage function, D (u_n ), was solved for the point midway between drains and the solution was presented graphically …

Teenage Marriage In Relation To Continuance In School, Marguerite Fryer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was a comparison of the teenage married girls in school and the married girls who dropped out of school in the Stockton Unified School District, in Stockton, California during the 1966-67 school year.

The girls who stay in school seem to have a more conducive home environment than the girls who drop out of school. The in school girls had the following advantages: They had more fathers who approved of their marriage; they had a significantly larger number of mothers who approved of their spouses after marriage; they were not running away from parental authority; their parents had …

Developmental Learning Of Concepts Of The Pre-School Child, Gordon Geddes

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A research experiment was performed in the Utah State University Child Development Laboratory on a group of pre-school children consisting of ten boys and ten girls between the ages of three and four years in an attempt to discover that teaching method which will best sustain a child's interest while teaching a foreign language in an experimental situation.

The procedure involved the evaluation of three different methods. 1) German conversation in a group utilizing audio-visual aids, 2) Group singing of a German song, and 3) Telling a story in German using a flannel board with illustrations. These three methods were …

Estimation Of Incoming Radiation From Extraterrestrial Radiation And Climatic Data, Rodrigo H. Pizarro

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Average monthly values of incoming radiation, extraterrestrial radiation, sunshine, and sky cover frorn 32 climatological stations in the United States were used as a basis to develop radiation equations.

Empirical relations between incoming radiation and more commonly available climatic and geographic variables, such as percent of relative sunshine, mean daily sky cover, station elevation and extraterrestrial radiation, were established using an empirical procedure used by Christiansen (1966, 1967) to compute his evaporation and evapotranspiration formulas.

The reliability of the equations developed was deternlined by comparing the computed values of incoming radiation with measured values at Davis, California and for the …

Simulation And Analysis Of Stream-Aquifer Systems, Morton W. Bittinger

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

As defined for this study, a stream-aquifer system is a hydrologic system in which there is an intimate hydraulic interrelationship between one or more aquifers and a perennial stream. The objectives of this study are to better understand the response behavior of typical stream-aquifer systems, to look at the response behavior as influenced by water management practices, and to consider the problems and possibilities of integrated management of groundwater and surface water supplies within stream-aquifer systems.

A brief history of water development practices and policy, particularly in the Western United States, indicates that the tendency over the years has been …

A History Of The Italian And German Prisoner Of War Camps In Utah And Idaho During World War Ii, Ralph A. Busco

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The United States offered an ideal situation for prisoner of war camps during World War II. The remoteness of the states of Utah and Idaho offered also an ideal situation to intern prisoners.

The United States established 141 base camps and 313 branch camps. Out of this number, Utah and Idaho represented a total number of nine base and twenty-one branch camps. Utah and Idaho had under their supervision approximately 11,660 or 3.6% of the prisoners in the base camps.

The Utah and Idaho camps were under supervision of the United states War Department. Their basic source for the administration …

Newspaper Advertising, Retail Pricing Practices, And Gross Retail Margins For Turkeys In Selected Utah And Other U. S. Markets For Various Years And Seasons, Gerry R. Flake

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Newspaper advertising and retail pricing practices for turkeys were ascertained and gross retail margins established for three Utah markets, 1955 to 1966, and for 12 other selected U. S. markets, 1965 and 1966.

Turkey was extensively used as an advertised special item, particularly in holiday seasons. Food retailing organizations advertised turkey at low prices and margins at Thanksgiving and Christmas when consumer demand for turkey is traditionally strong. Prior to these holidays, food retailing organizations in a market simultaneously advertised turkey at identical prices and with little product differentiation thus limiting the effectiveness of turkey as an advertised item to …

Effects Of Temperature On In Vitro Excystation Of Various Eimeria Species, Larry E. Hibbert

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Cleaned oocysts of Eimeria bovis, E. ellipsoidalis, E. auburnensis, and E. zurnii of cattle, E. ahsata and E. ninakohlyakimovae of sheep, E. bilamellata and E. callospermophili of the ground squirrel, and E. tenella of chickens were pretreated with 50 percent carbon dioxide/50 percent air at temperatures ranging from 29 to 45 C with 2 degree intervals for 4, 6, 8, 10, and 30 hours and treated with bile and trypsin.

The optimum temperature in species of ruminant coccidia was 39 to 41 C. In E. bovis, excystation occurred from 29 to 43 C. At 43 C and above, …