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Bulletin No. 205 - The Beet Leafhopper In Utah: A Study Of Its Distribution And The Occurrence Of Curly-Top, George F. Knowlton

UAES Bulletins

The sugar-beet industry of Utah, and many other western states, has suffered enormous losses from curly-top. Under natural conditions this disease is transmitted, so far as known, solely through the feeding of the beet leafhopper, Eutettix tenellus (Baker), the so-called "white fly." The serious damage of 1924 and 1926 has especially emphasized the necessity for more knowledge concerning the problem.

Sporogenesis In Botrichium Virginianum Swartz, Lewis Abel Stocking

Bachelors’ Theses

The earliest resultful work done in Pteridophytes, very closely similar to Botrychium Virginianum Swartz, was the work of Goebel (1890) on the Ophioglossales. Bower (1890) followed Goebel in his work on the Ophioglossales. He completed a work in 1896, which according to Burlingame (1907), who also did valuable work on the Ophioglossales, is the most comprehensive and satisfactory that has thus far been done. This work had a stimulating effect upon the early study of Botrychium Virginianum Swartz because of the almost entirely similar histology of the two plants. Burlingame’s (1907) work in the Ophioglossales, was done in 1907. He …

The Anatomy Of The Honeybee, Carol M. Steib

Bachelors’ Theses

The honeybee has lived In a society under such complex laws and has executed such varied and difficult labors that it has attracted the attention of men and women from the very earliest of times. Aristotle, Cato, Varro, Pliny, Columella, Pollodius, all studied the bee; as also did Arlstomachus (who, if we are to believe Cicero, watched them for forty-eight years) and Phylisius whose writings have been lost.

Branched Cells Of Pteris Cretica L., Var. "Albo-Lineata, Hort And Pellaea Viridis (Forksk) Prantl", Mary Elizabeth Trechter

Bachelors’ Theses

The fern gametophyte offers a large field for experimental work, not only in the reproductive processes but in the development of prothallia from the germination of the spore. The ordinary fern spore germinates on soil or in water. Prothallia, which have formed branched cells, have been found by a number of workers, and attempts have been made by some to explain the cause of the branching.

A Critical Study Of Blood Sugar Determination, Myrtle L. Sand

Bachelors’ Theses

There are many methods, for the determination of this sugar, in use now, some used widely others not so widely. Methods vary as to accuracy and there has been many comparisons made between various methods. There is a recognized clinical need of a method for a quantitative sugar determination which will be quick, accurate, and adapted for use with small blood samples. As a result of this last, namely adaptation for use with small blood samples, several micro chemical methods have been published. One of these is the Epstein method. It is simple and supposed to make the estimation of …

Circular No. 68 - Summary Of Publications

UAES Circulars

Circular No. 68 contains a summary of publications issued by the Utah Agricultural Experiment Station, thru its Publications Division, since September 1, 1926. The publications of this Station are no longer sent to a general mailing list (except in cases of libraries and state editors) but are sent only on request. Therefore, copies of any of the publications listed will be sent without charge to those requesting them as long as the supply is available. However in the case of abstracts of scientific and technical papers the supply is very limited and the requests for these should be limited …

Circular No. 66 - Physical Curd Character Of Milk And Its Probably Relation To Infant Nutrition, R. L. Hill

UAES Circulars

A problem which must be met by many mothers is that of obtaining for their infants an adequate substitute for breast milk. The weaning period is a very critical time in the life of every infant. Its ability to properly digest and assimilate the food supplied will largely determine its state of health, provided it is kept free from infection.

Milk formulas for the feeding of infants are often made up to conform to certain fat requirements. Some infants apparently have difficulty in properly assimilating a milk with a high fat content. This may be due to a low fat …

Bulletin No. 202 - Some Observations On Winter Injury In Utah Peach Orchards, T. H. Abell

UAES Bulletins

During the winter following the freeze, fruit growers in Utah were deeply concerned over the effects of the cold on their orchards, since it was observed that not only were fruit buds killed, but the tissues of the trunks, limbs, and twigs were turning brown. The question at once arose as to whether or not this browning indicated the approaching death of the trees. It was, therefore, considered important to determine, if possible, the nature and extent of the damage, to discover any factor which might have favored or lessened the injury, and finally to offer suggestions to the orchardist …

Bulletin No. 201 - Economic Insects In Some Streams Of Northern Utah, James G. Needham, Reed O. Christenson

UAES Bulletins

The food of trout in our mountain streams is mainly insects. It is, in part, land insects that fall on the water and are taken as they float upon its surface, but in a much larger part it is insects that grow up in the water and are taken in their immature stages. These are the constant and dependable food-supply. They have been little studied hitherto. This bulletin is a report of a preliminary examination of some Utah streams, made for the purpose of discovering what forms of life are present in the streams and in what relative abundance. Some …

Circular No. 63 - Tomato Culture In Utah, A. L. Wilson

UAES Circulars

The object of this circular is to point out in a general way the essential considerations for successful tomato-growing in Utah. It has become necessary because of the increasing importance of this crop in the state as well as in the United States.

Bulletin No. 198 - Report Of The Director: For The 18-Month Period From January 1, 1925, To June 30, 1926

UAES Bulletins

In the following report of the Utah Agricultural Experiment Station for the past eighteen months, record has been made in as much detail as space would permit. The text is intended to give the present status of the projects under consideration and to record the changes and additions since the last report.

Nutrient Requirements Of Growing Chicks, F. E. Mussehl

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The object of our experimental work was to establish if possible certain principles of poultry nutrition, permitting later a better combination of natural feedstuffs with the highest growth efficiency.

Grazing Periods And Forage Production On The National Forests, Arthur W. Sampson, Harry E. Malmsten

Aspen Bibliography

Stockmen in the West have always had confidence in the adequacy of the native forage crop to provide pasturage for their livestock. Indeed, under normal climatic conditions this enormous natural resource has not failed the grazier, except where it has been called upon to meet unreasonable demands. The productivity of the range has declined sharply, however, wherever the requirements of plant growth have been disregarded for many years in succession. Where there has been too early or too frequent and to heavy grazing, undue trampling, or some other unsatisfactory feature of range use, the results have been uniformly bad. Many …

Bulletin No. 197 - The Pear Leaf Blister Mite As An Apple Pest, I. M. Hawley

UAES Bulletins

The blister mite is a pest of foreign origin, that has been in the United States for many years. It was introduced into this country, probably from Europe, sometime before 1872, and by 1894 it was rather general in its distribution thruout the United States and Canada. At the present time this mite is a serious pest of apples in many of the fruit-growing sections of Western America. The blister mite was first reported in Utah by Hedrick as early as 1898. During the last few years it has been abnormally abundant in some parts of Utah.

Bulletin No. 196 - The Fruit Tree Leaf Roller And Its Control By Oil Sprays, I. M. Hawley

UAES Bulletins

When the fruit tree leaf roller is present in large numbers in an apple orchard it i the most destructive apple insect in the state. Fortunately, it is not a pest of general occurrence. Tho this insect is known to occur from Cache Valley south to Beaver, serious losses from its ravages have been restricted to occasional orchards within the infested territory.

Bulletin No. 195 - Field Studies Of Sugar-Beet Nematode, George Stewart, A. H. Bateman

UAES Bulletins

The sugar-beet nematode has now become of importance in Utah. It occurs in spots in practically all of the older beet-growing districts and in a few parts of the state in much larger areas. The intensity of infestation varies from mere traces to nearly complete occupation. One of the areas of severe infestation in Utah on a large area is in the Lewiston district, of northern Cache Valley. The survey here reported was undertaken in order to find the extent of nematode infestation in Cache Valley and the possibility of its control by ordinary cultural practices.

Circular No. 60 - Seed-Potato Treatment: For The Control Of Four Common Diseases Rhizoctonia, Scab, Blackleg, Dry-Rot, B. L. Richards

UAES Circulars

Potato diseases are a constant menace to the Utah potato crop. During the 4-year period from 1920 to 1924 losses sustained from disease averaged 19.5 per cent, or approximately one-fifth of the entire state crop. This means that every year a large percentage of the seed planted is useless and that one-fifth of every acre planted to potatoes is wasted. Again, labor in the way of planting and in cultivation is used to poor advantage, and finally the grower suffers a direct financial loss which frequently eats up his expected profit.

Circular No. 58 - Potato Production In Utah, George Stewart

UAES Circulars

Potatoes were the first crop planted in Utah. In July 1847, the Mormon pioneers turned the water from City Creek over the parched land near what is now the center of Salt Lake City. The ground was then broken and sown at once to potatoes. Only a small yield was obtained but this helped materially to eke out the meagre food supply until the harvest of 1848. During the several hard years that followed potatoes were among the most important foods for the pioneer settlers. Since then they have held a prominent place in the agriculture of the state.

Bulletin No. 194 - The Influence Of Storage On The Composition Of Flour, J. E. Greaves, C. T. Hirst

UAES Bulletins

There is quite a general belief among millers, bakers, and the laity that flour improves on ageing. However, there is no definite information as to the time requisite for this improvement nor whether it reaches a maximum and then deteriorates. The information is no more exact as to the changes which occur during the ageing process or the conditions which govern them. We have found no reference in the literature where bad effects have resulted from storage, provided a highly-milled, sound flour is stored in dry, well-ventilated rooms free from odors (20). The results which have been reported point to …

List Of Available Publications, July 1, 1925, Nebraska Agricultural Experiment Station

Nebraska Agricultural Experiment Station: Historical Circulars

Publications of the Agricultural Experiment Station and the Agricultural Extension Service are sent free to all persons requesting them.

Thirty-Ninth Annual Meeting Of The Iowa Academy Of Science, May 1 And 2, 1925, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.

Circular No. 54 - The More Important Insects Injurious To The Sugar-Beet In Utah, I. M. Hawley

UAES Circulars

Insects destroy many sugar-beets in Utah. In some years the incomes of the farmers of the state are greatly reduced because of the ravages of these pests. This circular has been written in the hope that the more important information about the insect pests of this valuable crop may be more readily available to the beet growers of the state.

The insects treated in this paper are grouped under two main heads. In the first division are included those insects affecting the tops or foliage of the beet. In the second division are those insects that feed on the roots.

Bulletin No. 193 - Cache County Water Conservation District No. 1, William Peterson, G. D. Clyde, D. S. Jennings, M. D. Thomas, Karl Harris

UAES Bulletins

Cache County Water Conservation District No. 1 lies on the west side of the valley about eight miles from and a little northwest of Logan, Cache County, Utah. Figure 1 shows the location of the project with respect to Salt Lake, Ogden, Brigham City, Logan, and Cache County. Cache County, with a population in 1920 of 27,000 people, is located in the north-central part of the state and occupies the greater part of the fertile Cache Valley. Cache County Water Conservation District No.1 includes 8490.78 acres (of which 7373.38 acres are allotted water) and extends from Bear River and its …

Tuberculosis Of Swine, L. Van Es

Nebraska Agricultural Experiment Station: Historical Circulars

The tuberculosis of swine constitutes a definite and very interesting section of the general problem of the tuberculoses of warm-blooded animals. No one section of this general tuberculosis problem can be adequately solved without regard to all the other sections into which it may be divided. The disease in swine is perhaps the most outstanding example which illustrates this point. This animal, extremely susceptible to tuberculous disease, but without a type of infection specifically its own, derives its infection by contact with any of the types of tuberculosis of warm-blooded animals.

Bulletin No. 192 - Biennial Report Of The Director: For The Years 1923 And 1924

UAES Bulletins

No report (either annual or biennial) of the work of the Utah Agricultural Experiment Station has been published separately since 1906. There has been so much inquiry regarding the present status of research projects that a brief report at this time is considered opportune. The report is an attempt to give the reader a brief but concise and comprehensive survey of the research work now under way at the Utah Agricultural Experiment Station as well as a brief description of the work being attempted on each of the experimental farms.

Chapter Five: Agriculture Comes Into Its Own, Robert Crawford

These Fifty Years: A History of the College of Agriculture of the University of Nebraska

IT MAY be said that it took eighteen years to lay the foundation of agricultural instruction and research in Nebraska, and another eighteen years to build on this foundation. The eighteen years beginning about 1890 marked a period of great development for the Industrial College as well as the University itself. A School of Agriculture was early established and in a comparatively few years began to number its students in the hundreds. What the agricultural department of the Industrial College had heretofore lacked in numbers, this secondary school supplied. For the first time, the college farm began to be regarded …

Bulletin No. 189 - Ridding The Land Of Wild Morning Glory, George Stewart, D. W. Pittman

UAES Bulletins

"Morning glory" is the common name for one of the worst weeds found in Utah. On account of its general resemblance to a cultivated plant spoken of as morning glory, the weed is frequently and more correctly known as the "wild morning glory." Since everyone who handles farm land knows the plant, a description of it is unnecessary. It may not be amiss, however, to mention that the name probably comes from the fact that the showy, funnel-shaped flowers are open only in the morning, being folded within the sepals after midday or earlier in hot, dry weather.

Bulletin No. 190 - Corn Silage In A Dairy Ration, W. E. Carroll

UAES Bulletins

In 1914 a study of the value of corn silage in the dairy ration was undertaken at this station. The first phase of the general question to receive attention was the effect of adding silage to a basal ration of alfalfa hay and grain.

Bulletin No. 188 - Maintaining The Productivity Of Irrigated Land, D. W. Pittman

UAES Bulletins

It is almost universal history that in farming a newly developed region no attention whatever is paid to maintaining the fertility of the soil. This is natural for two very obvious reasons. In the first place the pioneer has other and more pressing problems in the "subduing" of the new land, and in the second place such virgin soils are generally blessed with a great abundance of native fertility. New lands in an arid or semiarid region are usually especially fertile because they represent a long-time accumulation of fertility which is not possible under humid conditions. Since in a humid …

Loss Of Minerals In Cooking Vegetables, Sadie O. Morris

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

It has long been recognized that vegetables contain certain necessary substances which are essential to the human diet. Considerable attention has been given the different foods as to their economic value to human nutrition, however the information concerning the preparation of foods as to their nutritive losses is as yet inadequate. Considerable research work has been done in certain directions and some valuable data accumulated as to the economic losses contained in the waste or discarded portions of the food material. Several investigators have rather accurately determined not only the economic, but also the nutritive losses, especially those which occur …