Agriculture Commons^™

The Effect Of Some Environmental Influences In Bulk Hybridization Of Grass, John W. Clark

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

For decades man has been interested in selection and hybridization of crop plants, but it has not been until in comparatively recent years that anything of importance has been done toward the improvement of perennial forage grasses.

The Effect Of Fomes Ignarius On Populus Tremuloides In The Gallatin National Forest Of Montana, Marvin F. Kelly

Aspen Bibliography

No abstract provided.

A Taxonomic And Distributional Study Of Simuliidae Of Western United States, George S. Stains

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Simuliidae, usually called black-flies or buffalo gnats, are abundant both as individuals and species in many parts of the western United States. The present study of this family was undertaken (1) because of the extensive annoyance caused to livestock, wild life, and man by the blood-sucking females, (2) because certain disease pathogens are known to be transmitted during the feeding process, and (3) because the species and distribution of these economically important pests are so incompletely known in the West.

Sampling Studies In Morning Glory Roots, Lowell W. Rasmussen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Farmers and agriculturalists have in recent years become more conscious of the seriousness of the weed problems. The solution of this problem is obviously the development of more efficient and less costly methods of eradication. Most pernicious weeds are propagated vegetatively by means of underground parts in which reserve food is stored as a source of energy in tiding the plant over winter and initiating spring growth each year. In order to get at the behavior of these perennial parts, it is necessary to resort to a study of root reserves. This involves information not only on the composition of …

Relationship Between Size Of Farm Business And Labor Income On Utah Farms, Milton S. Folkman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Since the turn of the century there has been a trend within the State of Utah toward more and smaller farms. The original farm units taken up by the early settlers of this state have been divided and subdivided until Utah today has hundreds of uneconomical-sized farms too small to be operated profitably under their present organization.

Bulk Hybridization Of Smooth Bromegrass (Bromus Inermis), Wayne E. Domingo

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Large populations of controlled hybrids are essential to the most rapid progress in many phases of plant breeding programs. Plant species vary in the ease with which they may be hybridized. Hand hybridization of forage grasses is usually slow and laborious, and the minuteness of the floral parts of most of the species which have perfect flowers renders their hybridization by hand especially difficult and tedious. This difficulty limits the use that forage grass breeders are making of the significant principles of hybridization and thereby retards progress in this phase of plant breeding. Any dependable, rapid technique of hybridization which …

Inheritance Studies And Possible Linkage Relationships In Barley Involving Five Factor Pairs, Freeman J. Byington

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Many studies on inheritance in barley have been made, but very little progress has as yet been obtained. Barley in many ways is an attractive plant with which to make inheritance studies. Unlike common wheat with 21 chromosome pairs and few distinct characters, barley has only 7 chromosome pairs and consequently only 7 possible linkage groups and many distinct characters that may be readily recognized. The chief difficulty is that many of these characters cannot be readily classified because a number of factors may be responsible for their production.

The purpose of this project has been to study in considerable …

Weather And Plant-Development Data As Determinants Of Grazing Periods On Mountain Range, David F. Costello, Raymond Price

Aspen Bibliography

Fundamental in economical range-resource management is the determination of proper grazing periods. It is of prime importance to be able to establish a date in the spring when the range has produced sufficient feed to keep livestock in thrifty condition, when it is reasonably safe from excessive trampling and packing of the soil, and when the more important key forage plants have attained sufficient development to withstand grazing use. Such opening dates, as well as the time to defer and rotate grazing and to remove livestock from the range, are dependent in part on the prevailing weather conditions and on …

A Study Of Hybrids Between Sugar Beets And Mangel Wurzels With Reference To Color Factors And Sugar Content, Boyd Berrey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Preliminary unpublished work at the Salt Lake City Laboratory of the Division of Sugar Plant Investigations, Bureau of Plant Industry, United States Department of Agriculture, indicates that beets showing the Y color factor (9) were larger than sugar-beet types recessive for this color factor (y y). It was suggested to the writer that an investigation be made to determine whether or not yield and sugar content were correlated with color factors in beets. Linkages between the R and Y color factors have been reported by Keller (9), and the results indicate a close linkage between color factors R …

An Economic Analysis Of Farm Tenure In The Uintah Basin, Utah, Glen B. Johnson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Before presenting an economic analysis of farm tenure in the Uintah Basin, it will be helpful to consider some aspects of the historical, economic, and social background of that portion of the region included in this study.

A portion of the Uintah Indian Reservation, which was created in 1861, was opened to white settlement under the homestead and townsite laws on August 28, 1905 after 103,000 acres of farming land had been allotted to individual Indians living on the reservation and 276,000 acres reserved for Indian grazing lands and timber reserve.

Because of the large deposits of asphalt products that …

Studies On The Comparative Value Of The Hot Treatment (Krantz Patent) And Common Methods Of Handling Barnyard Manure, Orval E. Winkler

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Antidating written human history the dung of animals, chalk, marl, wood ashes and other substances were probably used to increase the productivity of the soil. These practises found their way into the earliest farming activities of the Chinese, Persians, Greeks and Romans. (3)(11) In the Hebrew scriptures mention is made of the "Dung Gate". (10) This was undoubtedly a place given to the marketing of manures. That manure was used as a soil amendment in Asia Minor in Biblical times is not questioned. The famous Roman agricultural writer Cato (234 B.C.) wrote at length on manures and their handling. He …

Alfalfa Seed Production In Millard County, Utah As Related To Soil Type, George Whornham

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Alfalfa has a wide range of adaptability as a forage plant, but the areas in which it will produce seed successfully are extremely limited. These sections are confined almost exclusively to the arid or semi-arid regions of the world. In all other areas it is primarily a question of seasonal fitness. The extreme localization may be further emphasized by the fact that within the highest producing counties there are appreciable areas of land not suitable for seed production.

Influence Of Clipping On The Yield Of Forage In Certain Pastures At North Logan, Utah, Newel Washburn

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

"Pasture is the natural food of all domesticated herbivore, especially the ruminant, and the only single feed upon which it can be maintained in health indefinitely."

Pastures rank next to the alfalfa hay crop in total production of forage far livestock in Utah. For approximately five months each year pastures turnish the cheapest supply of feed available for dairy production. Their improvement and utilization to the best advantage as a source of valuable feed in Utah has been overshadowed by the abundance of alfalfa hay with its rich supply of minerals and high quality protein. There is a potentiality of …

A Farm Organization And Management Study In Western Millard County, Utah, George Thomas Blanch

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Due to the cumulative effect of certain economic factors, the farmers of western Millard County, known as the Delta area, are in unfavorable economic conditions. Many of the farms are heavily mortgaged, taxes and interest in many cases are in arrears for several years, and in general, lack of prosperity in quite evident. The majority of the farm land in this area is within one of four drainage districts. These districts are known as drainage districts No. 1, No. 2, No. 3, and No. 4. The cost and maintenance of these drainage systems is generally thought to be one of …

A Research Study Of Lamb Feeding In Winter Dry Lots At Monroe, Utah, 1928-29, George R. Henderson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

By reason of the topography of the land, Utah is and probably will remain a livestock grazing state. As far as agriculture is concerned over 90 percent of the area is suitable for grazing only. This grazing range is used by cattle and sheep.

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 …

Correlation Studies In Wheat, Joseph Reed

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Considerable work has been done by plant breeders and investigators in the study of individual plant characters, but only a few have attempted to work out correlations between characters in crop plants. One reason for this seems to be, that many investigators have felt that correlation studies were of very little practical value. This attitude was due perhaps to the interpretation given correlation data, especially the nature of the casual agency or agencies to which the correlation was attributed. Most of our plant breeders however, have been too busy working on experiments with single characters and have given little or …

The Effect Of Hydrogen Ion Concentration Of Solution Upon The Absorption Of Water By The Hard Seed Of Alfalfa, A. L. Starr

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The hard seed coat found on some seeds has long been an object of interest to experimentors in seed germination and a great deal of work has been done on various phases of the problem. Some have attacked it with the idea of hastening germination, while others have been interested in determining the nature of the seed coat and isolating the factors which make it impermeable under ordinary favorable germination conditions.

A Study Of Onion Varieties, A. L. Wilson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The object of this thesis is to present the results of four year's studies of onion varieties conducted by the author at the Davis County Farm together with a partial review of the literature of the subject, setting forth the history, the botany, the commercial importance and some of the varietal studies in other states and Canada.

The Alkali And Water Relations Of Atriplex Carnosa, A. R. Croft

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The question of alkali has many phases. Much work has been done on this important phase of soil science, particularly as it affects the agricultural products and native vegetation. These two phases of the subject naturally forced themselves upon men who tilled the soil for a livlihood and in late years thay have occupied the attention of many soil investigators. The reliability of this indicator value of native vegetation, (1) on a given soil has long since been established in a general way. This generalization has been used rather extensively in making a hasty survey of large possible agricultural areas. …

A Study Of The Effect Of The Age Of Parents On The Ability Of Dairy Cows To Produce Milk And Butterfat, J. Howard Maughan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The question of the possible effect of the age of parents on the quality of the offspring which they produce has long been a disputed one. It is held by some that the ages of both parents act together in determining the quality of offspring. There are others who maintain that the age of the dam only is a factor and still others who believe that only the age of the sire need be considered in this connection.

Normal Spread Between Local And Terminal Market Prices For Sheep, Von T. Ellsworth

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The consuming world must look to eight nations for 68 per cent of its supply of sheep and sheep products, as shown by the accompanying chart and table No. 1. Australia leads other nations with 19 per cent, while the United states follows with 8. 7 per cent of the world's sheep population. The nature of the industry confines it to the more sparsely populated regions, and areas ranking high in cheap grazing lands.

Field Studies Of The Control Of The Sugar Beet Nematode. (1920-24). (Heterodera Schachtii Schmidt)., Alfred H. Bateman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The dire consequences of nematode invasion have been graphically depicted by Spiegler (1907), who says, the beet industry was at its heyday during the seventies. Nor satisfied with the land already in cultivation, the farmer plowed fertile lands along the border of the streams, wherein to grow beets, obtaining in some cases of 20 to 27 tons an acre.

Effect Of Root-Rot Upon Sugar-Beet Seed Production, Louis F. Nuffer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Due to considerable loss through root-rot of mother beets while in storage during the winter of 1918-1919 the Amalgamated Sugar Company asked advice in regard to planting beets which had decay lesions on them. Would the beets yield seed if planted? How much seed would these beets yield as compared with healthy beets? Would the seed produced be injured by having been grown on decayed beets? It was felt that an experiment carried out with the above questions in view would bring out many facts upon which to base conclusions in answering the questions of the Sugar Company.

Climate And Plant Growth In Certain Vegetative Associations, Arthur W. Sampson

Aspen Bibliography

The relation of climate to the growth and development of vegetation is of profound importance in both practical and experimental agriculture. It is extremely useful to know the cause of successful growth and establishment, or of partial success or failure, of various species in different plant associations and under widely contrasted climatic conditions. The climatic requirements of various plant types are largely responsible for the results obtained in the case of experimental seedings and plantings of most species. Once the adverse climatic factors are definitely known, failures with plants may be largely avoided by the judicious selection of sites or …

The Story Of Aspen, Enos Mills

Aspen Bibliography

No abstract provided.