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Articles 3061 - 3090 of 3226
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The Effect Of Heterosis On Yield Components In Hybrids Of Wheat, Verlin Gene Boeder
The Effect Of Heterosis On Yield Components In Hybrids Of Wheat, Verlin Gene Boeder
Electronic Theses and Dissertations
Plant hybridizers of the past have found definite increases in yield and vegetative growth of F1 plants intraspecific and interspecific crosses. In more recent times, the successful utilization of hybrid vigor in cross-pollinated crops regulated by sterility systems has stimulated the search for usable sterility systems in cereal grains. In wheat which is self-pollinated, this method of improving yield has recently become possible with discovery of male sterility and fertility restoring mechanisms. It has often been observed that certain varietal or line combinations will produce more desirable progeny than others. Therefore, it is essential that information be obtained on sources …
Laboratory Rearing Of Western Corn Rootworms And Hybridization Of The Western Corn Rootworm (Diabrotica Virgifera) And Northern Corn Rootworm (D. Longicornis) (Coleoptera: Chrysomelidae), Ada Mae Hintz
Electronic Theses and Dissertations
The Corn rootworms are beetles of the family Chrysomelidae, genus Diabrotica whose larvae feed on the roots of corn. Large populations of the western corn rootworm, Diabrotica virgifera Leconte, recently developed in Nebraska and surrounding states, thus increasing the economic importance of these insects. Widespread soil insecticide treatments for both species were adopted after 1951 and have become widely accepted. Considering their economic importance, little is recorded about the biology of rootworms. Perhaps this is because they are soil insects. This study was undertaken to provide some of the basic information necessary to research on better methods of control. Members …
Verbal Response Of Preschool Children From Two Socio-Economic Groups To Still-And-Action-Picture Stimuli / By Jamie Aycock Taylor, Jamie Aycock Taylor
Verbal Response Of Preschool Children From Two Socio-Economic Groups To Still-And-Action-Picture Stimuli / By Jamie Aycock Taylor, Jamie Aycock Taylor
Electronic Theses and Dissertations
No abstract provided.
Mr. Shaw's Musical Profession, Marcia Huff
Mr. Shaw's Musical Profession, Marcia Huff
Electronic Theses and Dissertations
No abstract provided.
A Survey Of Four Lay Magazines And A Professional Journal For Articles Which Might Help Mothers In Their Role As Family Dietician, Christine Mcneel
A Survey Of Four Lay Magazines And A Professional Journal For Articles Which Might Help Mothers In Their Role As Family Dietician, Christine Mcneel
Electronic Theses and Dissertations
No abstract provided.
The Influence On Family Food Choices Of Eighth Grade Pupils In Pontotoc County, Mississippi, Doris Cole Patterson
The Influence On Family Food Choices Of Eighth Grade Pupils In Pontotoc County, Mississippi, Doris Cole Patterson
Electronic Theses and Dissertations
No abstract provided.
A Cytochemical Study Of The Oocyte Of The Mosquito Aedes Aegypti, George Soller Miller
A Cytochemical Study Of The Oocyte Of The Mosquito Aedes Aegypti, George Soller Miller
Electronic Theses and Dissertations
No abstract provided.
Phosphorous Uptake By Oat Seedlings From Phosphorus Fertilizer Applied To A Subsoil As Affected By Soil Moisture, Dean E. Wesley
Phosphorous Uptake By Oat Seedlings From Phosphorus Fertilizer Applied To A Subsoil As Affected By Soil Moisture, Dean E. Wesley
Electronic Theses and Dissertations
This study is an outgrowth of preliminary investigation by Hovland and Wesley to determine environmental conditions required by plants to establish vegetative cover on highway back slopes. From the nutritional phase of this study it was determined that nitrogen and phosphorus were the only deficient elements in the four exposed subsoils that were investigated. Deficient nutrients are supplied to exposed subsoils by the application of commercial fertilizer. The fertilizer is usually applied on the soil surface and seldom worked more than a few inches down onto the soil. In th Northern Great Plains, this zone of fertilizer placement dries out …
The Carbohydrate Composition And In Vitro Digestibility Of Western Hheatgrass At Various Growth Stages As Determined By Leaf Number And Cutting Date, Dennis L. Schentzel
The Carbohydrate Composition And In Vitro Digestibility Of Western Hheatgrass At Various Growth Stages As Determined By Leaf Number And Cutting Date, Dennis L. Schentzel
Electronic Theses and Dissertations
One of the major factors influencing the nutritional value of grass is stage of maturity. The relationship of lignification to maturity and plant digestibility has been studied extensively. One of the purpose of this study was to determine the effect of stage of maturity on hemicellulose content of western wheatgrass and further the content of its component sugars. Western wheat grass is a rhizomatous cool season perennial grass which is very important in South Dakota ranges. Another purpose of this study is to note whether cutting date and leaf number are good measures of the stage of maturity as measured …
Antibiotic Accumulation In An Outdoor Anaerobic Poultry Manure Lagoon, Dennis A. Messmer
Antibiotic Accumulation In An Outdoor Anaerobic Poultry Manure Lagoon, Dennis A. Messmer
Electronic Theses and Dissertations
There is an increasing trend towards the concentration of poultry populations. With the increased popularity of confinement housing and the purchasing of the feed, less land is needed to raise and keep poultry. A serious problem arising from this change is that manure disposal is becoming increasingly difficult for owners of large poultry flocks. Lagoons have been used as a means of poultry waste disposal. This method of manure treatment is not new. The stabilization of waste in a lagoon is limited by the biological population which in turn is controlled by: nutrition, temperature, oxygen, and toxic materials. Oxytetracycline is …
Influence Of Proportions Of Concentrates To Roughage With Various Feed Additives On The Feedlot Performance Of Growing And Finishing Steers, Wayne Bernard Mcgillick
Influence Of Proportions Of Concentrates To Roughage With Various Feed Additives On The Feedlot Performance Of Growing And Finishing Steers, Wayne Bernard Mcgillick
Electronic Theses and Dissertations
In any feeding operation considerable attention should be given to the selection of a proper ration. A ration that will produce the most rapid gain will not necessarily produce the most economical gain. Rate of gain and fattening depend on the intake of digestible energy in excess of maintenance when the ration contains adequate amounts of other essential nutrients. Since many feed additives have become available in recent years, it is important to know their effects with various types of rations. Diethylstillbestrol have been reported to consistently improve gain and feed efficiency. Other feed additives have not been investigated as …
Problems In The Freeze-Drying Of Foods, Minakshi Desai
Problems In The Freeze-Drying Of Foods, Minakshi Desai
Electronic Theses and Dissertations
Natural drying of edible seeds and fruits with the aid of the sun and wind is one of the oldest methods of preserving food and was practiced even by the people of the Stone Age. Drying means the removal of water, whereas dehydration means the application of special techniques for the removal of water with minimum damage to appearance, flavor, texture, and nutritive value. Among various methods of dehydration, freeze-drying most satisfactorily fulfills the requirements of minimum damage. Freeze-drying, also known as lypohilization, was introduced as a method of treating glands for pharmaceutical purposes. Being a slow and expensive process, …
Studies On The Limiting Amino Acids In Laying Hen Diets, Darwin Gene Britzman
Studies On The Limiting Amino Acids In Laying Hen Diets, Darwin Gene Britzman
Electronic Theses and Dissertations
Experiments were conducted over a period of two years to study the effects of amino acid supplementation of low and high energy and low and high protein diets on the performance of SCWL laying hens. This research was conducted in two different environmental conditions; one a litter floor, cold-wall poultry house, the other a warm-wall poultry house with individual cages. In the litter floor, cold-wall environment, methionine and lysine were added singly and in combination to a 16 percent protein diet containing 1414 Calories of metabolizable energy per pound and methionine singly and a combination of methionine and lysine to …
The Relationship Between Muscular Strength And Predicted Academic Success Among Selected College Freshmen Male Students At South Dakota State University, Dwain S. Guelle
The Relationship Between Muscular Strength And Predicted Academic Success Among Selected College Freshmen Male Students At South Dakota State University, Dwain S. Guelle
Electronic Theses and Dissertations
The purpose of this investigation was to determine the relationship between muscular strength and predicted academic success of selected freshmen male college students at South Dakota State University. The muscular strength test used was taken from the cable-tension battery and the predicted academic success factor was represented by the American College Test composite score. Thirty freshmen male college students were randomly selected according to their American College Test composite score. All athletes and students in strenuous classes of physical education had been previously eliminated. The subjects were then given a four test battery of cable tension strength tests to determine …
A Histological And Cytochemical Study Of Habrobracon Nurse Cellsand Oocytes, Donald Joseph Barras
A Histological And Cytochemical Study Of Habrobracon Nurse Cellsand Oocytes, Donald Joseph Barras
Electronic Theses and Dissertations
No abstract provided.
A Survey Of The Extent Of Adult Homemaking Education In Vocationally Approved High Schools In South Dakota With Implications For Possible Expansion, Marlene Olson Westby
A Survey Of The Extent Of Adult Homemaking Education In Vocationally Approved High Schools In South Dakota With Implications For Possible Expansion, Marlene Olson Westby
Electronic Theses and Dissertations
The purpose of this study was to learn the extent of adult homemaking education in vocationally approved high schools in South Dakota and to investigate opinions concerning possibilities for increasing the adult homemaking program. Analysis of the data from the returned questionnaires revealed that, while homemaking education for adults is available as a part of the vocational program in some high schools in South Dakota, in the majority of high schools, it is found to be entirely lacking. Of the 109 vocationally approved high schools investigated, 13 offered adult homemaking classes at some time during the three-year period. The majority, …
An Analysis Of Factors Affecting The Role Of United States' Private Investment In Thailand's Economic Growth, By Patrick Moriarty
An Analysis Of Factors Affecting The Role Of United States' Private Investment In Thailand's Economic Growth, By Patrick Moriarty
Electronic Theses and Dissertations
This study is an attempt to assess the present and potential importance of United States private investments as a force in simulating economic development in Thailand. Thailand has been used as a case study because it has strong military and economic ties with the United States, it is located in a highly strategic area regarding overall United States foreign policy, it has established a policy of actively seeking foreign private investments in its economy, and the author has some familiarity with the overall situation there as a result of having spent two years in Thailand as an agricultural technical advisor …
Vitamin A And Carotene Requirements Of Fattening Beef Cattle, Thomas M. Hansen
Vitamin A And Carotene Requirements Of Fattening Beef Cattle, Thomas M. Hansen
Electronic Theses and Dissertations
During the last 25 years, several experiments have been conducted to study the amount of vitamin A and carotene needed by cattle. More emphasis has been devoted to carotene since cattle rations contain varying amounts of this precursor of vitamin A. Increasing market demands for lightweight cattle have brought about changes in methods of feeding. Cattle are being fattened rapidly at young ages using rations which contain a large amount of concentrates. Such rations are often low in carotene and need vitamin A or carotene supplementation. Recently, several research workers have questioned the adequacy of present recommended vitamin A and …
Synchronization Of Estrus In Swine, Robert D. Fritschen
Synchronization Of Estrus In Swine, Robert D. Fritschen
Electronic Theses and Dissertations
Greater production and efficiency of management in the livestock industry has increased the need for artificial breeding of farm animals. The solution to the development of artificial insemination in any species depends greatly on being able to preserve the semen for several days with minimum loss in fertilizing capacity. Synchronization of estrus could make swine artificial insemination practical and economical. Four separate experiments were conducted with a total of 176 gilts in an attempt to synchronize estrus and conception in gilts by use of exogenous hormones. The first experiment was conducted with 48 gilts. The two hormones used in this …
A Study Of Physical Fitness Of Selected Students In South Dakota And Iowa, Floyd Dean Farrand
A Study Of Physical Fitness Of Selected Students In South Dakota And Iowa, Floyd Dean Farrand
Electronic Theses and Dissertations
The purpose of this study was to compare the physical fitness of the students of Patrick henry Junior High School of Sioux Falls, South Dakota, with the physical fitness of the students of junior high schools of Waterloo, Iowa. The Iowa Test of Motor Fitness was administered to the students of Patrick Henry Junior High School in Sioux Falls and to the junior high students of Waterloo. The students of Sioux Falls had an average of 125 minutes in physical education class each week in the seventh and eighth grades. In the ninth grade, they had 100 minutes of physical …
A Study Of The Present Physical Education Facilities, Equipment And Curriculum For Seventh And Eighth Grade Girls At Freeman Davis School In Mobridge, South Dakota, And Recommendations For An Improved Program, Betty Ann Shay
Electronic Theses and Dissertations
Physical education in our schools is perhaps the least standardized of all the various curricula. Mobridge, South Dakota, is a town of approximately 4,400 residents located beside the Missouri River in the north central part of the state. Mobridge is a progressive city and has shown its interest in the physical and social well-being of its citizens. Physical education is an integral and vital part of education. It is necessary to evaluate any existing program of physical education periodically to reexamine the aims and objectives and to make certain that the needs, interests, and abilities of individual students are actually …
Mississippi Agriculture 1929-1935 : A Study Of Diversification And Crop Production During The Greatdepression, Craddock Dubose Galloway
Mississippi Agriculture 1929-1935 : A Study Of Diversification And Crop Production During The Greatdepression, Craddock Dubose Galloway
Electronic Theses and Dissertations
No abstract provided.
Taxonomy, Ecology, And The Distribution Of Spiders In Five Counties Of Northern Mississippi, Peggy Rae Dorris
Taxonomy, Ecology, And The Distribution Of Spiders In Five Counties Of Northern Mississippi, Peggy Rae Dorris
Electronic Theses and Dissertations
No abstract provided.
Effect Of Choice On The Amount Of Vegetables Eaten By Preschoolchildren, Maria Mayorga
Effect Of Choice On The Amount Of Vegetables Eaten By Preschoolchildren, Maria Mayorga
Electronic Theses and Dissertations
No abstract provided.
Dormitory Food At Northwest Mississippi Junior College And Students' Responses To It / By Emma Bass Ryker, Emma Bass Ryker
Dormitory Food At Northwest Mississippi Junior College And Students' Responses To It / By Emma Bass Ryker, Emma Bass Ryker
Electronic Theses and Dissertations
No abstract provided.
Changes In Family Living Patterns After Enrolling In Balanced Farm And Home Planning In Calhoun County, Mississippi, Martha Land Phillips
Changes In Family Living Patterns After Enrolling In Balanced Farm And Home Planning In Calhoun County, Mississippi, Martha Land Phillips
Electronic Theses and Dissertations
No abstract provided.
Changes In Breads And Breadmaking Practices In Southern Homes During The Past Century, Maeola Clements Hagerty
Changes In Breads And Breadmaking Practices In Southern Homes During The Past Century, Maeola Clements Hagerty
Electronic Theses and Dissertations
No abstract provided.
Satisfaction Of New Homeowners With The Livability Of Their Homes, Adelaide Elizabeth Murdock
Satisfaction Of New Homeowners With The Livability Of Their Homes, Adelaide Elizabeth Murdock
Electronic Theses and Dissertations
No abstract provided.
Effects Of Temperature And Nutritional Levels On Limb Regeneration In Amblystoma, James Preston Mckeown
Effects Of Temperature And Nutritional Levels On Limb Regeneration In Amblystoma, James Preston Mckeown
Electronic Theses and Dissertations
No abstract provided.
The Utilization Of Nonfat Dry Milk And Whole Egg Solids By School Lunch Managers In Mississippi, Geneva Barr Carroll
The Utilization Of Nonfat Dry Milk And Whole Egg Solids By School Lunch Managers In Mississippi, Geneva Barr Carroll
Electronic Theses and Dissertations
[No abstract provided.]