Open Research Oklahoma (Oklahoma State Univ.)
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Failed cotton herbicide rotation restrictions to soybean in Oklahoma
No full textThe Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311
4-H Home Demonstration: Third year
Get PDFThe Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311
Traceability systems and their role in regulatory compliance for agricultural products: Lessons learned from the Honduran coffee value chain
No full textThis study examines the challenges and opportunities in transforming Honduras’s coffee sector into a sustainable and resilient value chain, addressing the pressures from climate change and the European Union Deforestation Regulation (EUDR). Exploring how smallholders and cooperatives navigate these challenges, it focuses on barriers to adopting sustainable practices and traceability tools and investigates how stakeholders can collaborate to enhance sustainability and resilience.
The study addresses three key questions: (1) What sustainable practices are currently implemented in the Honduran coffee value chain, and how effectively do they address environmental and economic challenges? (2) What barriers do smallholders and cooperatives face in adopting sustainable practices and implementing digital traceability tools? (3) How can stakeholders collaborate to improve resilience while promoting long-term sustainability in the coffee sector?
Drawing on findings from 18 semi-structured interviews conducted by Melo-Velasco et al. (2023) along the Honduran Western Coffee Route, the study employs Braun and Clarke’s (2006) thematic analysis, supported by NVivo (Version 14, Lumivero) software to examine stakeholders’ narratives. Key themes include barriers to sustainability adoption, the role of cooperatives, and the potential for public-private partnerships. The analysis highlights the critical need to build trust in data sharing, governance, and sustainability-driven initiatives. These platforms can strengthen alignment across the sector by ensuring that underrepresented groups have a voice and foster more inclusive solutions.
The findings reveal that smallholders face significant barriers, such as high implementation costs, fragmented traceability systems, and limited financing and technical support access. Although cooperatives are essential to advancing sustainability, their reach is limited, 80% of the smallholder population remain unaffiliated and excluded from key resources. The study underscores the complex relationship between sustainability, profitability, and productivity, particularly under the combined pressures of climate change and regulatory compliance.
The research proposes a phased strategy to address these barriers, focusing on capacity building, cooperative empowerment, and the development of integrated traceability systems. Honduras can build a more resilient coffee sector by fostering stakeholder collaboration and ensuring long-term sustainability and economic viability
Powered by AI: Crafting a GPT prototype for oral history
No full textThis presentation demonstrates the application of Generative Pre-trained Transformers (GPTs) to analyze oral history data. A custom GPT model was developed to process interview transcripts from The "Big Top" Show Goes On oral history project at Oklahoma State University. The research explored the potential of GPTs to extract insights, create timelines, and identify key themes within the oral histories. While promising, challenges such as hallucinations and data limitations were encountered. Ethical considerations for AI in oral history research are emphasized, along with potential future applications including automated transcription, summarization, and metadata generation.Librar
Marketing fruits and vegetables in Oklahoma
No full textThe Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311
Effect of Triptonide on canine sperm production
No full textMale contraceptives have not received adequate attention from both human and veterinary focused researchers, which has led to a marked deficiency of effective male contraceptive agents, resulting in a heavy dependence on female contraceptives to prevent unwanted and unplanned pregnancies. This is clearly demonstrated by canine overpopulation, which has been a worldwide problem for decades. Current research is trending towards developing novel, safe and effective contraceptive alternatives- with an emphasis on reduced side effects and potential reversibility. This has caused the focus to shift towards nonhormonal and reversible contraceptives, rather than the traditional hormone altering contraceptive agents because of their wide range of side effects due to alteration of the endogenous hormonal balance. One of the novel contraceptives that is undergoing trials is Triptonide, which is a derivative from an herb historically used in ancient Chinese medicine. Clinical and fertility trials in laboratory animals showed promise as a reversible, nonhormonal contraceptive and safe for long-term usage. However, Triptonide has not yet been tested in dogs. In my project, we aimed to determine the efficacy of Triptonide as a male contraceptive in dogs. This was done by treating young, healthy, and fertile male dogs (Beagles) to Triptonide and monitoring blood and semen parameters to determine the efficacy and safety, while compared to a placebo group. Ideally, Triptonide as a novel male contraceptive should be reversible, effective at the therapeutic dose with minimal adverse side effects and easy to administer. Triptonide shows promise as a viable alternative to castration for canine population control, while being suitable for further research on drug formulation
Textiles Laboratory Workbook
No full textThis workbook was created for teaching the textiles course (DM 2573) at Oklahoma State University. All material and exercises in the workbook are planned to help students employ scientific principles to understand textile characteristics, performance, and end-use. This lab manual has evolved from the hard work of many professors, lecturers, and teaching assistants over the years from Design Housing and Merchandising at OSU.Design and Merchandisin
Exploitative competition mechanisms drive coexistence of Aphelinus nigritus and Lysiphlebus testaceipes on shared aphid hosts in cereal agroecosystems of the Central Great Plains
No full textIn the Central Great Plains of the United States, the solitary koinobiont endoparasitoids Lysiphlebus testaceipes Cresson (Hymenoptera: Braconidae) and Aphelinus nigritus Howard (Hymenoptera: Aphelinidae) compete for limited aphid hosts in annual cereal agroecosystems. Although these parasitoids reduce aphid pest populations in this region through parasitism, little is known about their competitive interactions and mechanisms of coexistence. This dissertation explores the mechanisms of coexistence and the outcomes of competitive interactions between A. nigritus and L. testaceipes. The mechanisms include differences in host specificity, host switching ability, searching efficiency, arrival time, and host discrimination ability. The information gained from these studies will add to our understanding of the overall structure and function of cereal aphid parasitoid communities of the Central Great Plains
Feed intake, feed efficiency, and gas flux in beef heifers
No full textThis research explored feed efficiency in beef heifers through three interconnected studies, focusing on enhancing U.S. beef production's profitability and sustainability. The first study examined 109 yearling heifers transitioning from a forage diet (HAY) to a mixed diet (TMR). Efficient heifers demonstrated superior feed efficiency by consuming significantly less feed while maintaining comparable growth rates. The second study assessed 164 yearling heifers on a 100% forage diet, revealing that low residual feed intake (RFI) heifers consumed up to 23.1% less forage compared to inefficient counterparts, without negatively impacting growth performance. The third study utilized GreenFeed technology to measure gas emissions, aiming to establish a predictive relationship between feed intake and gas flux in grazing cattle. The results suggest that forage intake can be effectively estimated using gas emissions data alongside performance metrics. These studies collectively underscore the importance of selecting for efficient cattle and highlight the need for further research to refine feed efficiency evaluation methods across diverse dietary conditions, ultimately enhancing beef production's economic and environmental sustainability
When is the best time to plant cotton in the Oklahoma panhandle
No full textThe Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311