Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (2444)
- Animal Sciences (1392)
- Agriculture (643)
- Physical Sciences and Mathematics (402)
- Social and Behavioral Sciences (387)
-
- Plant Sciences (299)
- Environmental Sciences (263)
- Dairy Science (260)
- Medicine and Health Sciences (253)
- Agricultural and Resource Economics (207)
- Agricultural Economics (159)
- Natural Resources and Conservation (158)
- Economics (157)
- Engineering (156)
- Food Science (152)
- Ecology and Evolutionary Biology (148)
- Beef Science (142)
- Veterinary Medicine (136)
- Regional Economics (129)
- Microbiology (121)
- Agronomy and Crop Sciences (114)
- Biology (93)
- Aquaculture and Fisheries (90)
- Natural Resources Management and Policy (81)
- Arts and Humanities (78)
- Chemistry (77)
- Meat Science (73)
- Education (66)
- Geography (57)
- Nutrition (56)
- Keyword
-
- Cattle (57)
- Dairy science (57)
- South Dakota (53)
- Dairy plant (52)
- Dairy processing (51)
-
- Beef (46)
- Animal husbandry department (45)
- Livestock (44)
- Nutrition (44)
- Food science (40)
- South dakota (38)
- Agricultural economics (33)
- Corn (32)
- Beef cattle (31)
- Feedlot (30)
- Home economics department (29)
- Poultry (28)
- Steers (28)
- Agriculture department (25)
- Economics (25)
- Diet (24)
- Sheep (24)
- Dairy (23)
- Management (21)
- Farm management (18)
- Health (18)
- Wheat (18)
- Corn silage (17)
- Digestibility (17)
- Swine (17)
- Publication Year
- Publication
-
- Electronic Theses and Dissertations (1764)
- SDSU Extension Fact Sheets (423)
- Research Bulletins of the South Dakota Agricultural Experiment Station (1887-2011) (382)
- SDSU Extension Circulars (299)
- SDSU Extension Extra Archives (179)
-
- The Collegian Archive : 1960 to 1969 (169)
- The Collegian Archive : 1970 to 1979 (158)
- South Dakota Farm and Home Research: 1949 -1998 (148)
- The Collegian Archive : 1950 to 1959 (148)
- Commencement Programs (144)
- South Dakota State University Catalogs and Bulletins: 1935 to present (133)
- Economics Commentator (1972- 2016) (123)
- Agricultural Experiment Station and Research Farm Annual Reports (118)
- Natural Resource Management Faculty Publications (118)
- The Collegian Archive : 1920 to 1929 (118)
- Little International "Little I" Agricultural Exposition Catalogs (96)
- The Collegian Archive : 1980 to 1989 (82)
- Agricultural Experiment Station Circulars (1920-1915) (78)
- The Collegian Archive : 1910 to 1919 (71)
- Economics Staff Paper Series (1969 - 2017) (69)
- Agricultural Experiment Station Agricultural Economics Pamphlets (1941-1991) (57)
- SDSU Extension Leaflets (53)
- Proceedings of the South Dakota Academy of Science (52)
- Animal Science Research Report 2025 (50)
- Animal Science Newsletters (47)
- Agronomy, Horticulture and Plant Science Faculty Publications (46)
- SDSU Beef Day 2020 Summary Publication (46)
- Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences) (45)
- Dairy Digest (43)
- Dairy Science and Food Science Faculty Publications: 2022 to Present (43)
- Publication Type
- File Type
Articles 1081 - 1110 of 8048
Full-Text Articles in Entire DC Network
Oak Lake Field Station : Perspectives Of A Field Station Director, Nels H. Troelstrup Jr.
Oak Lake Field Station : Perspectives Of A Field Station Director, Nels H. Troelstrup Jr.
Oak Lake Field Station 30th Anniversary Retreat Presentations
No abstract provided.
Undergraduate Research And Teaching At Oak Lake Field Station, Lan Xu
Undergraduate Research And Teaching At Oak Lake Field Station, Lan Xu
Oak Lake Field Station 30th Anniversary Retreat Presentations
No abstract provided.
Hilton M. Briggs Papers, Sdsu Archives And Special Collections, Hilton M. Briggs Library
Hilton M. Briggs Papers, Sdsu Archives And Special Collections, Hilton M. Briggs Library
University Archives
Hilton M. Briggs was president at South Dakota State University from 1958 to 1975. The collection is composed of material related to his retirement, recognition, and his life after retirement. Included are biographical materials, clippings, correspondence, writings, photographs, and scrapbooks.
Jackrabbit Dairy And Food Review, Vikram V. Mistry
Jackrabbit Dairy And Food Review, Vikram V. Mistry
The Jackrabbit Dairy & Food Review
This is the Winter 2017- 2018 Jackrabbit Dairy and Food Review. It contains the following articles and information: Message from the Department Head, 2017 Graduates, David A. Thompson Endowment, New Faculty and Visitors, information on the Dairy Club and Food Science Club, Judging Activities, Student Accomplishments, Professional Activities of Faculty and Staff, Distinguished Alumni, Dairy Facilities, a list of Scholarships and Dairy and Food Science Students, information on Departmental Outreach and Research Highlights.
Augmenting Land Cover/Land Use Classification By Incorporating Information From Land Surface Phenology: An Application To Quantify Recent Cropland Expansion In South Dakota, Lan Hoang Nguyen
Electronic Theses and Dissertations
Understanding rapid land change in the U.S. NGP region is not only critical for management and conservation of prairie habitats and ecosystem services, but also for projecting production of crops and biofuels and the impacts of land conversion on water quality and rural transportation infrastructure. Hence, it raises the need for an LCLU dataset with good spatiotemporal coverage as well as consistent accuracy through time to enable change analysis. This dissertation aims (1) to develop a novel classification method, which utilizes time series images from comparable sensors, from the perspective of land surface phenology, and (2) to apply the land …
Southeast South Dakota Experiment Farm Annual Progress Report, 2019, Southeast South Dakota Research Farm
Southeast South Dakota Experiment Farm Annual Progress Report, 2019, Southeast South Dakota Research Farm
Agricultural Experiment Station and Research Farm Annual Reports
This is an annual report of the research program at the Southeast South Dakota Research Farm in cooperation with South Dakota Agricultural Experiment Station and the SDSU College of Agriculture, Food, and Environmental Sciences and has special significance for those engaged in agriculture and the agriculturally related businesses in the ten county area of Southeast South Dakota. The results shown are not necessarily complete or conclusive. Interpretations given are tentative because additional data resulting from continuation of these experiments may result in conclusions different from those based on any one year
Development And Evaluation Of Vaccine Candidates For Senecavirus A, Bishwas Sharma
Development And Evaluation Of Vaccine Candidates For Senecavirus A, Bishwas Sharma
Electronic Theses and Dissertations
Senecavirus A (SVA) has been associated with several outbreaks of vesicular disease (VD) since 2014 in major swine-producing countries around the world. The virus causes VD that is clinically indistinguishable from foot-and-mouth disease (FMD) in pigs. Currently there are no commercial vaccines available for SVA. Here, we developed a live attenuated SVA strain by mutating a wild type SVA strain SD15-26 (wt SVA). The live attenuated virus, rSVA mSacII, replicated less efficiently in cell cultures in vitro and expressed lower amounts of VP1 and VP2 capsid proteins than wt SVA. Most importantly, the rSVA mSacII virus failed to induce clinical …
Influence Of Sporulation And Germination Behavior Of Bacillus Licheniformis On Microbial Quality Of Skim Milk Powder, Nancy Awasti
Influence Of Sporulation And Germination Behavior Of Bacillus Licheniformis On Microbial Quality Of Skim Milk Powder, Nancy Awasti
Electronic Theses and Dissertations
This dissertation includes modeling of sporulation and germination behavior of Bacillus licheniformis strains during raw milk holding, tracking the survival of sporeformers and spores of high sporulating Bacillus strain during skim milk powder manufacturing. In addition, preliminary studies were done to standardize a rapid spore detection technique by using ratiometric fluorescence. To understand the role of strain variability during raw milk holding conditions, population dynamics of two strains of Bacillus licheniformis, ATCC 6634 and 14580, were modeled as a function of temperature (4.0 -12.0˚ C) and duration (0 - 72 h), using regression analysis. Based on initial spiking of vegetative …
Shrimp Production Environment And The Gut Microbiome: Effects Of Aquaculture Practices And Selective Breeding On The Gut Microbiome Of Pacific Whiteleg Shrimp, Litopenaeus Vannamei, Angela Landsman
Electronic Theses and Dissertations
Knowledge of the functional role of the gut microbiome in animal health and nutrition may provide solutions to shrimp aquaculture challenges, such as improving disease resistance and optimizing growth particularly with low cost feeds. Successful manipulation of bacteria found in the gut requires a deeper understanding of shrimp microbial communities and how their compositional structure is influenced by environmental conditions, and inherent host factors such as genetics. The initial research investigated the intestinal bacterial communities of the Pacific whiteleg shrimp (Litopenaeus vannamei) reared in pond systems compared to indoor aquaculture facilities as an exploration of the effects of aquaculture practices …
Novel Hybrid Analogs Of Estrone Origin Exhibits Cytotoxic Effects Against Egfr-Dependent Cancers, Felix Acheampong
Novel Hybrid Analogs Of Estrone Origin Exhibits Cytotoxic Effects Against Egfr-Dependent Cancers, Felix Acheampong
Electronic Theses and Dissertations
Cancer is second only to cardiovascular illnesses as the deadliest human disease globally. Currently, non-small cell lung cancer (NSCLC) and triple negative breast carcinoma (TNBC) are the most frequent types of cancer and have the highest mortalities. Epidermal growth factor receptor (EGFR), a central regulator of tumor progression, is frequently overexpressed in both cancers and is a key clinical target for therapeutic intervention. Natural products and their synthetic analogs have been utilized as EGFR tyrosine kinase inhibitors (TKIs) with potent antitumor effects. However, acquired resistance limits the long-term efficacy of these drugs. Estrone has been used as a scaffold in …
Effects Of Resistant Starch Type 4 On Gut Microbiota Derived Medium And Long Chain Fatty Acids And Bile Acids, Elizabeth Nagel
Effects Of Resistant Starch Type 4 On Gut Microbiota Derived Medium And Long Chain Fatty Acids And Bile Acids, Elizabeth Nagel
Electronic Theses and Dissertations
The human gastrointestinal tract is populated by a diverse and mutualistic microbial flora that has profound effect on human health. Identification and characterization of microbial-metabolites produced in response to human dietary intakes may provide insights into host-microbiota interactions to better understand the role of the microbiota in human health and diseases. However, much of this interaction is poorly understood as many metabolites remain unidentified or understudied at the present time. Starch is ubiquitously present in human diet and is a major energy source to all living cells. Resistant starch (RS) is the starch portion that is not absorbed in the …
Isolation And Identification Of Potential Bioinoculants Based On Phosphate Solubilizing And Plant Growth Promoting Benefits, Rachel Raths
Isolation And Identification Of Potential Bioinoculants Based On Phosphate Solubilizing And Plant Growth Promoting Benefits, Rachel Raths
Electronic Theses and Dissertations
Conservative models have shown that as populations rise, food production needs to double by 2050. Population increase and the green revolution have caused fertilizer inputs to increase since the 1960’s, increasing environmental issues and production costs. These intensive practices have led to degraded arable land and there has been an increase in urbanization meaning we need to make best use of the farming land that is available and ensure it is sustainable for future food production. Due to this, there has been a higher demand for research on more environmentally and economically friendly approaches to food production. Plant growth promoting …
Investigation Of Intergroup Bias In Two Neuromaturationally Distinct Age Cohorts: An Erp Study, Reuven M. Hanna
Investigation Of Intergroup Bias In Two Neuromaturationally Distinct Age Cohorts: An Erp Study, Reuven M. Hanna
Electronic Theses and Dissertations
Currently, sociological investigation of adolescent behavior focuses on the intersection of biography, history, and structure to explain adolescent risk-taking, reward-seeking, impulsivity, novelty-seeking and peer-salience. However, the preponderance of the evidence points away from social ecology and to a significant neuromaturational restructuring event between the 12th and 25th years of life as the root of adolescent behavioral tendencies. As a result, sociological social psychology can benefit from engaging in basic research using neuroscience methods. The present study expands the dual systems model of brain development to account for maturational changes in the social brain network as a way to explain social …
Hydrodynamic Cavitation As In-Line Process To Control Common Dairy Sporeformers, Pratibha Chaudhary
Hydrodynamic Cavitation As In-Line Process To Control Common Dairy Sporeformers, Pratibha Chaudhary
Electronic Theses and Dissertations
Sporeforming bacteria and their endospores have the ability to survive thermal treatments and proliferate in the milk and dairy products to cause spoilages. We applied the effect of hydrodynamic cavitation in controlling these bacteria and their spores at pilot scale level. Our aim was to investigate a technology that would improve the microbial quality of milk and dairy products, and is capable of being scaled up to be adapted at industrial level. Cavitation damages the cell walls of the bacteria and their endospores (releasing dipicolinic acid, responsible for endospore resistance to extreme conditions), thereby making them susceptible to thermal treatments …
Senecavirus A: Pathogenicity And Interactions With Host Cell Death Pathway, Maureen Hoch Vieira Fernandes
Senecavirus A: Pathogenicity And Interactions With Host Cell Death Pathway, Maureen Hoch Vieira Fernandes
Electronic Theses and Dissertations
Senecavirus A (SVA) is a positive sense single-strand RNA virus of the genus Senecavirus, family Picornaviridae. Senecavirus A is an emerging picornavirus of swine, which causes vesicular disease (VD) in pigs that is clinically indistinguishable from footand- mouth disease and other high consequence VDs of swine. There is evidence that SVA has been circulating in the US swine population since the late eighty’s, however, recently the virus emerged worldwide, and it has been associated with several VD outbreaks in pigs in many of the major swine producing countries. Despite the recent surge in the number of cases of …
Greater Sage-Grouse Survival, Breeding Ecology, Resource Selection, And West Nile Virus Prevalence On The Eastern Fringe Of Their Range, Lindsey Anne Parsons
Greater Sage-Grouse Survival, Breeding Ecology, Resource Selection, And West Nile Virus Prevalence On The Eastern Fringe Of Their Range, Lindsey Anne Parsons
Electronic Theses and Dissertations
The greater sage-grouse (Centrocercus urophasianus) is a sagebrush (Artemisia spp.) obligate species that has experienced population declines over the past several decades. Sage-grouse are a species of conservation concern throughout the Intermountain West and are considered a species of greatest conservation need in South Dakota. Numerous studies have documented drivers of demographic performance at the core of their distribution; however, relatively few studies have examined sage-grouse inhabiting the eastern extent of their range, in South Dakota. We sought to examine sage-grouse space use in multiple seasons, estimate survival, and determine factors affecting nest success in South Dakota …
Preservice Agricultural Education Majors’ Perceptions Of Integrating Science Into Agriculture, Kasey Trocke
Preservice Agricultural Education Majors’ Perceptions Of Integrating Science Into Agriculture, Kasey Trocke
Electronic Theses and Dissertations
Agricultural science has seen a rise in secondary agricultural classrooms and many studies have been done with regards to integrating science into agriculture. Several recommendations have been to assist preservice agriculture education majors with science integration. Preservice agricultural education majors could influence the future of agricultural science due to their perceptions of integrating science into agriculture into the classroom. The purpose of the study was to assess preservice teachers’ perceptions of integrating science into agriculture curriculum based on the theory of planned behavior. An online survey was administered to the population of agricultural education majors at South Dakota State University. …
Efficacy Of Synthetic And Biopesticides On Bacteria Leaf Streak Management And Influence Of Cultivar And Environment On Epiphytic Bacteria Diversity On Wheat Seeds, Marilen Nampijja
Electronic Theses and Dissertations
Wheat (Triticum aestivum) is the most important staple food for over two billion people, or 36% of the world population. The United States ranks 4th in the world for wheat production. However, wheat production is faced by both biological and non-biological constraints. Among the biological constraints, diseases play a big role in limiting wheat production with estimated yield losses ranging from 20% to 40%. Bacterial leaf streak (BLS) of wheat caused by Xanthomonas translucens pv undulosa (Xtpvu) is one of the major bacterial diseases affecting the wheat production in most wheat growing regions in the USA. In recent years, it …
Design, Synthesis, And Evaluation Of Gunw-3 As A Brain Targeting Agent, Asim Najmi
Design, Synthesis, And Evaluation Of Gunw-3 As A Brain Targeting Agent, Asim Najmi
Electronic Theses and Dissertations
The blood brain barrier (BBB) is a barrier in the brain that separates the peripheral blood circulation system from the central nerve system (CNS). The barrier effectively protects the brain from xenobiotics. The BBB serves as a physical barrier through the tight junction of endothelial cells that were found to be 50-100 times tighter than that of normal endothelial cells. Different drug efflux pumps such as P-glycoproteins and multidrug-resistance proteins are found to be overdistributed on the BBB. These drug efflux pumps help pump xenobiotics out if they enter the cells and serv as an additional mechanism to prevent xenobiotics …
A Study Of The Effect Of Heat Treatment On 3d Printed Pla Impact Strength, Suresh Thota
A Study Of The Effect Of Heat Treatment On 3d Printed Pla Impact Strength, Suresh Thota
Electronic Theses and Dissertations
Environmental conditions have a significant effect on the mechanical properties of various materials. Environmental parameters such as temperature and humidity have a major impact on mechanical properties of materials such as compressive strength, tensile strength, bending strength and impact strength. The purpose of this research is to study how temperature and humidity affect the impact strength of 3D printed PLA plastic. Impact strength is the ability of a material to absorb energy subjected to an impact load by a pendulum. In this research, 3D printing was employed to produce PLA specimens which were later used for different experimental testings. For …
Characterizing Spatiotemporal Patterns Of White Mold In Soybean Across South Dakota Using Remote Sensing, Confiance L. Mfuka
Characterizing Spatiotemporal Patterns Of White Mold In Soybean Across South Dakota Using Remote Sensing, Confiance L. Mfuka
Electronic Theses and Dissertations
Soybean is among the most important crops, cultivated primarily for beans, which are used for food, feed, and biofuel. According to FAO, the United States was the biggest soybeans producer in 2016. The main soybean producing regions in the United States are the Corn Belt and the lower Mississippi Valley. Despite its importance, soybean production is reduced by several diseases, among which Sclerotinia stem rot, also known as white mold, a fungal disease that is caused by the fungus Sclerotinia sclerotiorum is among the top 10 soybean diseases. The disease may attack several plants and considerably reduce yield. According to …
Evaluation Of Feeding Alternative Feedstuffs Including Hydroponic Barley Sprouts And Carinata Meal To Dairy Cattle, Rhea D. Lawrence
Evaluation Of Feeding Alternative Feedstuffs Including Hydroponic Barley Sprouts And Carinata Meal To Dairy Cattle, Rhea D. Lawrence
Electronic Theses and Dissertations
The purpose of this dissertation research was to examine alternative feed ingredients not typically found in dairy cattle diets. In total, four studies were conducted to evaluate feedstuffs such as hydroponic barley sprouts and carinata meal and how they affect cattle performance. To determine how feeding hydroponic barley sprouts would affect growing dairy heifer and lactating cow performance two feeding studies were conducted. In the first study, inclusion of 14 % (DM basis) hydroponic barley sprouts (HYD) was evaluated in an ad libitum total mixed ration (TMR) compared to a control (CON) diet on dairy heifer performance during a 12 …
Effects Of Increasing Dietary Levels Of Carinata Meal On Feeding Behavior, Performance And Carcass Characteristics Of Beef Growing Steers, Alejandro C. Casella
Effects Of Increasing Dietary Levels Of Carinata Meal On Feeding Behavior, Performance And Carcass Characteristics Of Beef Growing Steers, Alejandro C. Casella
Electronic Theses and Dissertations
The objectives of the present study are to evaluate feeding behavior, animal performance and carcass characteristics of beef growing steers fed increasing amounts of carinata meal (CM). Due to the high protein content of the CM after the oil extraction for biofuel there is an opportunity to use it as a protein supplementation in beef cattle. Twenty-four steers blocked by weight were assigned to four corn-based diets (n = 6 animals per treatment). In the three treatment diets, carinata meal replaced high-moisture corn at 5, 10, or 15%. The diets were fed using the Insentec RIC system for 138 days. …
Nutritional Transporter Mediated Drug Delivery For Cancer, Siddharth S. Kesharwani
Nutritional Transporter Mediated Drug Delivery For Cancer, Siddharth S. Kesharwani
Electronic Theses and Dissertations
Recent advancements in nanotechnology have unfolded novel opportunities in medicine, especially in targeted therapeutics and imaging for cancer. However, the majority of the existing nanotechnologies for cancer suffer from shortcomings such as (i) rapid elimination from the systemic circulation before reaching the cancer tissue. (ii) poor tumor accumulation, targeting, and penetration due to inadequate vasculature and extensive extracellular matrix in the tumor. Thus, overcoming these two limitations of nanotechnology is of considerable interests for cancer researchers. In this dissertation, we demonstrate the feasibility of glucose-modified nanoparticles (GLU-NPs) as an efficient cancer targeted-delivery system for enhancing the systemic circulation time and …
Alternative Treatment Options For Controlling Anthelmintic-Resistant Haemonchus Contortus Populations In South Dakota Sheep Herds, Adam Sarah
Electronic Theses and Dissertations
Haemonchus contortus is a common economically important gastrointestinal nematode that obliges the survival and productivity of small ruminants, especially sheep and goats. Anthelmintic resistance is a primary challenge in ruminant health management programs in preventing and controlling the H. contortus populations; therefore, there is a great necessity in finding and developing natural plant products for use as alternatives to commercial anthelmintics for controlling H. contortus in pastured sheep and goats. This dissertation has three major aims conducted in three separate studies: the first in vivo one was to evaluate the extended effect of a springtime, combined-treatment with 3 anthelmintics having …
Application Of Analytical Techniques In Food Product Development, Sonali R. Pandey
Application Of Analytical Techniques In Food Product Development, Sonali R. Pandey
Electronic Theses and Dissertations
Products are analyzed in major sectors of food industry to meet regulatory standards, food safety, quality control, and research and development. Analytical and extraction techniques have been applied for simultaneous investigation of multiple product characteristics. Food analysis faces critical challenges due to the complex composition of food, leading to matrix effects that result in loss of accuracy and reliability. The analytical techniques require an efficient sample preparation to avoid or minimize matrix effects. Solid-phase extraction has been widely used to address this issue. In this dissertation, the aim is to apply analytical techniques in food product development. To accomplish this, …
Performance Differences Between Two Groups Of Commercial Pigs Following Experimental Infection With Prrs Virus 1-7-4, Erin Little
Performance Differences Between Two Groups Of Commercial Pigs Following Experimental Infection With Prrs Virus 1-7-4, Erin Little
Electronic Theses and Dissertations
Porcine reproductive and respiratory syndrome virus (PRRSV) is the costliest swine disease in North America. Vaccines and management alone have not been effective in controlling this disease. Genetic selection for resilience may be a complimentary approach for controlling PRRSV. The objective of this study was to estimate performance differences between two groups of pigs from the same commercial line following infection with PRRSV 1-7-4: 1) pigs sired by boars selected based on a standard index (TN-S), which emphasized feed efficiency and carcass quality; and 2) pigs sired by boars selected based on an experimental index (TN-E), which emphasized feed intake, …
Winter Snow Depth In Arctic Alaska Results In Complex Changes In Caribou Forage Quality, Jessica C. Richert
Winter Snow Depth In Arctic Alaska Results In Complex Changes In Caribou Forage Quality, Jessica C. Richert
Electronic Theses and Dissertations
Caribou (Rangifer tarandus) rely on the short growing season for much of their annual nutrition, making them susceptible to even small changes in forage quantity and quality. Body condition in the summer and fall is linked to winter survival rates and fecundity in cows, critical factors in the robustness of caribou populations. Due to a warmer, wetter climate, snowfall is predicted to increase over Alaska’s North Slope in the next several decades. Deeper snow results in higher soil temperatures, allowing microbial mineralization of nitrogen to continue throughout the winter and increasing the availability of nitrogen for plants in spring and …
Rumen Microbial Culture Library And In Vitro Analysis Of Selected Bacterial Species On Colonization Resistance Against Bovine Enteric Pathogens, Maria Antony
Electronic Theses and Dissertations
The anaerobic habitat of the four chambers in ruminant’s foregut plays a vital role in the fermentation of the food by the active involvement of the residing microbial community. The cultivability and the potential role of rumen bacteria in the field of livestock production, host health and immunity are important to study. The developed anaerobic culturing techniques enable us to culture and screen different rumen bacteria to study the anti-pathogenic effects. Whole genome sequencing and analysis help us to understand the genome level characteristics of the rumen bacterial species individually. Since the majority of the rumen biosphere is still not …
Sunflower Pollinators In South Dakota: An Evaluation Of Species Composition, Abundance And Influence On Yield, Mackenzie Mattern
Sunflower Pollinators In South Dakota: An Evaluation Of Species Composition, Abundance And Influence On Yield, Mackenzie Mattern
Electronic Theses and Dissertations
In 2017 and 2018, South Dakota was the largest producer of sunflowers, Helianthus annuus L. (Asterales: Asteraceae) in the US, grossing approximately $178 million per year. In South Dakota, both confection and oilseed sunflower cultivars are grown. Despite breeding efforts to increase sunflower's ability to self-pollinate there is evidence that pollinator visitation results in increased sunflower yields. In addition, there is evidence that sunflower pollen is beneficial for pathogen resistance in various bee species, suggesting the importance of a mutualistic relationship between pollinators and sunflowers. In some areas, observed increases in sunflower yield is attributed to the presence of Apis …