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Articles 1 - 30 of 57
Full-Text Articles in Life Sciences
Varying Weed Densities Alter The Corn Transcriptome, Highlighting A Core Set Of Weed-Induced Genes And Processes With Potential For Manipulating Weed Tolerance, David P. Horvath, Sharon A. Clay, Stephanie A. Bruggeman, James V. Anderson, Wun S. Chao, Kathleen Yeater
Varying Weed Densities Alter The Corn Transcriptome, Highlighting A Core Set Of Weed-Induced Genes And Processes With Potential For Manipulating Weed Tolerance, David P. Horvath, Sharon A. Clay, Stephanie A. Bruggeman, James V. Anderson, Wun S. Chao, Kathleen Yeater
Agronomy, Horticulture and Plant Science Faculty Publications
The phenological responses of corn (Zea mays L.) to competition with increasing densities of winter canola (Brassica napus L.) as the weedy competitor were investigated. Changes in the corn transcriptome resulting from varying weed densities were used to identify genes and processes responsive to competition under controlled conditions where light, nutrients, and water were not limited. Increasing densities of weeds resulted in decreased corn growth and development and increased the number and expression intensity of competition-responsive genes. The physiological processes identified in corn that were consistently induced by competition with weeds included protein synthesis and various transport functions. …
Genetic Analysis Of Stilbenoid Profiles In Grapevine Stems Reveals A Major Mqtl Hotspot On Chromosome 18 Associated With Disease-Resistance Motifs, Soon L. Teh, Bety Rostandy, Mani Awale, James J. Luby, Anne Fennell, Adrian D. Hegeman
Genetic Analysis Of Stilbenoid Profiles In Grapevine Stems Reveals A Major Mqtl Hotspot On Chromosome 18 Associated With Disease-Resistance Motifs, Soon L. Teh, Bety Rostandy, Mani Awale, James J. Luby, Anne Fennell, Adrian D. Hegeman
Agronomy, Horticulture and Plant Science Faculty Publications
Grapevine (Vitis spp.) contains a wealth of phytochemicals that have received considerable attention due to health-promoting properties and biological activities as phytoalexins. To date, the genetic basis of the quantitative variations for these potentially beneficial compounds has been limited. Here, metabolic quantitative trait locus (mQTL) mapping was conducted using grapevine stems of a segregating F2 population. Metabolic profiling of grapevine stems was performed using liquid chromatography–high-resolution mass spectrometry (LC-HRMS), resulting in the detection of 1317 ions/features. In total, 19 of these features matched with literature-reported stilbenoid masses and were genetically mapped using a 1449-SNP linkage map and R/qtl …
Ethanol Sprays To Release Grapevine Bud Dormancy: A Potential Alternative To Cyanamides, Christian Chervin, Anne Fennell
Ethanol Sprays To Release Grapevine Bud Dormancy: A Potential Alternative To Cyanamides, Christian Chervin, Anne Fennell
Agronomy, Horticulture and Plant Science Faculty Publications
Aim: Grape growers sometimes use cyanamides (calcium or hydrogen) to release bud dormancy in warm climate regions, where the chilling requirement has not been met during winter. However, these products can cause damage to plants and are dangerous to handle, so alternatives would be welcomed by growers. Connections between metabolisms of ethanol, ethylene and cyanide revealed by previous studies led us to test the potential of ethanol sprays on bud break and early shoot growth.
Methods and results: Trials were performed over three years on Vitis vinifera grapevines trained in Guyot or cordon, and on cuttings in growth chambers. Cultivars …
United States Midwest Soil And Weather Conditions Influence Anaerobic Potentially Mineralizable Nitrogen, Jason D. Clark, Kristen S. Veum, Fabian G. Fernandez, James J. Camberato, Paul R. Carter, Richard B. Ferguson, David W. Franzen, Daniel E. Kaiser, Newell R. Kitchen, Carrie A.M. Laboski, Emerson D. Nafziger, John E. Sawyer, John F. Shanahan
United States Midwest Soil And Weather Conditions Influence Anaerobic Potentially Mineralizable Nitrogen, Jason D. Clark, Kristen S. Veum, Fabian G. Fernandez, James J. Camberato, Paul R. Carter, Richard B. Ferguson, David W. Franzen, Daniel E. Kaiser, Newell R. Kitchen, Carrie A.M. Laboski, Emerson D. Nafziger, John E. Sawyer, John F. Shanahan
Agronomy, Horticulture and Plant Science Faculty Publications
Nitrogen provided to crops through mineralization is an important factor in N management guidelines. Understanding of the interactive effects of soil and weather conditions on N mineralization needs to be improved. Relationships between anaerobic potentially mineralizable N (PMNan) and soil and weather conditions were evaluated under the contrasting climates of eight US Midwestern states. Soil was sampled (0–30 cm) for PMNan analysis before pre-plant N application (PP0N) and at the V5 development stage from the pre-plant 0 (V50N) and 180 kg N ha−1 (V5180N) rates and incubated for 7, 14, …
Management Considerations For Palmer Amaranth In A Northern Great Plains Soybean Production System, Brian Vab De Stroet, Sharon Clay
Management Considerations For Palmer Amaranth In A Northern Great Plains Soybean Production System, Brian Vab De Stroet, Sharon Clay
Agronomy, Horticulture and Plant Science Faculty Publications
Palmer amaranth (Amaranthus palmeri S. Watson) was first observed in a South Dakota field in 2015. This study assessed Palmer amaranth growth based on planting date (PD), impact on soybean [Glycine max (L.) Merr.] yield, and response of seedlings of South Dakota biotype seedlings to herbicides with different mechanisms of action (MOA). Soybean yield loss was influenced by Palmer amaranth density in 2016 (p = 0.001), with yield losses of 33% at densities greater than 15 plants m−2 (R2 = 0.65), although yield losses at low densities were greater than predicted by the fitted …
Predicting Economic Optimal Nitrogen Rate With The Anaerobic Potentially Mineralizable Nitrogen Test, Jason D. Clark, Fabian G. Fernandez, Kristen S. Veum, James J. Camberato, Paul R. Carter, Richard B. Ferguson, David W. Franzen, Daniel E. Kaiser, Newell R. Kitchen, Carrie A.M. Laboski, Emerson D. Nafziger, Carl J. Rosen, John E. Sawyer, John F. Shanahan
Predicting Economic Optimal Nitrogen Rate With The Anaerobic Potentially Mineralizable Nitrogen Test, Jason D. Clark, Fabian G. Fernandez, Kristen S. Veum, James J. Camberato, Paul R. Carter, Richard B. Ferguson, David W. Franzen, Daniel E. Kaiser, Newell R. Kitchen, Carrie A.M. Laboski, Emerson D. Nafziger, Carl J. Rosen, John E. Sawyer, John F. Shanahan
Agronomy, Horticulture and Plant Science Faculty Publications
Estimates of mineralizable N with the anaerobic potentially mineralizable N (PMNan) test could improve predictions of corn (Zea mays L.) economic optimal N rate (EONR). A study across eight US midwestern states was conducted to quantify the predictability of EONR for single and split N applications by PMNan. Treatment factors included different soil sample timings (pre-plant and V5 development stage), planting N rates (0 and 180 kg N ha−1), and incubation lengths (7, 14, and 28 d) with and without initial soil NH4–N included with PMNan. Soil was sampled …
Growing South Dakota (Summer 2016), College Of Agriculture, Food And Environmental Sciences
Growing South Dakota (Summer 2016), College Of Agriculture, Food And Environmental Sciences
Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)
[Page] 3 Celebration of Faculty Excellence
[Page] 6 Ag and Biosystems Engineering - Quarter Scale Tractor Team Named Reserve National Champs - Jackrabbit Wrestler Passionate About Sharing the Story of Pork - Mesonet Spray Tool Aids Precision Application Decisions
[Page] 10 Ag Business and Economics -POET Commodity Trading Fund
[Page] 12 Ag Education, Communication and Leadership - Leadership Opportunities Launch Recent Graduate to Career Readiness
[Page] 14 Agronomy, Horticulture & Plant Science - Local Foods Education Center Donates Over 5,000 Pumpkins - Seeding Success - Doug Malo Retires After 43 Years of Teaching - Howard Woodard's 29-Year Career Had a …
Distribution And Productivity Of Naturalized Alfalfa In Mixed-Grass Prairie, Lan Xu, Arvid Boe, Patricia Johnson, Roger N. Gates, Christopher G. Misar
Distribution And Productivity Of Naturalized Alfalfa In Mixed-Grass Prairie, Lan Xu, Arvid Boe, Patricia Johnson, Roger N. Gates, Christopher G. Misar
Natural Resource Management Faculty Publications
Alfalfa (Medicago sativa L.) is an important forage and conservation crop in North America but occurrences of naturalized alfalfa in rangelands are rare. A naturalized population of yellow-flowered alfalfa in mixed-grass prairie on the Grand River National Grassland in South Dakota has potential agricultural value for the region. Despite this value, the distribution pattern of this alfalfa among and within native plant communities in the northern Great Plains is unknown. Field studies were conducted from 2003 through 2006 along topographic positions at two sites where yellow-flowered alfalfa was naturalized to evaluate the relationships of yellow-flowered alfalfa on biomass production, cover, …
Qtl × Environment Interactions Underlie Adaptive Divergence In Switchgrass Across A Large Latitudinal Gradient, David B. Lowry, John T. Lovell, Li Zhang, Jason Bonnette, Philip A. Fay, Robert B. Mitchell, John Lloyd-Reilley, Arvid R. Boe, Et. Al
Qtl × Environment Interactions Underlie Adaptive Divergence In Switchgrass Across A Large Latitudinal Gradient, David B. Lowry, John T. Lovell, Li Zhang, Jason Bonnette, Philip A. Fay, Robert B. Mitchell, John Lloyd-Reilley, Arvid R. Boe, Et. Al
Agronomy, Horticulture and Plant Science Faculty Publications
Local adaptation is the process by which natural selection drives adaptive phenotypic divergence across environmental gradients. Theory suggests that local adaptation results from genetic trade-offs at individual genetic loci, where adaptation to one set of environmental conditions results in a cost to fitness in alternative environments. However, the degree to which there are costs associated with local adaptation is poorly understood because most of these experiments rely on two-site reciprocal transplant experiments. Here, we quantify the benefits and costs of locally adaptive loci across 17° of latitude in a four-grandparent outbred mapping population in outcrossing switchgrass (Panicum virgatum L.), …
Chemical Amendments Of Dryland Saline–Sodic Soils Did Not Enhance Productivity And Soil Health In Fields Without Effective Drainage, Girma A. Birru, David E. Clay, Thomas M. Desutter, Cheryl L. Reese, Ann C. Kennedy, Sharon A. Clay, Stephanie A. Bruggeman, Rachel K. Owen, Douglas D. Malo
Chemical Amendments Of Dryland Saline–Sodic Soils Did Not Enhance Productivity And Soil Health In Fields Without Effective Drainage, Girma A. Birru, David E. Clay, Thomas M. Desutter, Cheryl L. Reese, Ann C. Kennedy, Sharon A. Clay, Stephanie A. Bruggeman, Rachel K. Owen, Douglas D. Malo
Agronomy, Horticulture and Plant Science Faculty Publications
A common restoration treatment for saline–sodic soils involves improving soil drainage, applying soil amendments (e.g., CaSO4, CaCl2, or elemental S), and leaching with water that has a relatively low electrical conductivity. However, due to high subsoil bulk densities and low drainable porosities, these treatments many not be effective in glaciated dryland systems. A 3-yr field study conducted in three model systems determined the impact of chemical amendments (none, CaCl2, CaSO4, and elemental S) on plant growth, microbial composition, temporal changes in electrical conductivity (ECe ), and the relative sodium content (%Na). …
Using Drones For Precision Agriculture, Jiyul Chang, Madhav P. Nepal
Using Drones For Precision Agriculture, Jiyul Chang, Madhav P. Nepal
iLEARN Teaching Resources
In this teaching module, students will learn what Precision Agriculture is and how to apply drone into Precision Agriculture practices. To use data (images) taken by drone, students will learn the basic theory of Remote Sensing. Using images, students learn how to make NDVI (Normalized Difference Vegetation Index) maps and how to apply drone (remote sensing technique) in agriculture.
Nitrogen Demand Associated With Increased Biomass Yield Of Switchgrass And Big Bluestem: Implications For Future Breeding Strategies, Michael D. Casler, Dokyoung Lee, Robert B. Mitchell, Paul R. Adler, R. Mark Sule, Keith D. Johnso, Robert Kallenbach, Arvid A. Boe, Russell D. Mathison, Kim A. Cassida, Doohong Min, Kenneth J. Moore
Nitrogen Demand Associated With Increased Biomass Yield Of Switchgrass And Big Bluestem: Implications For Future Breeding Strategies, Michael D. Casler, Dokyoung Lee, Robert B. Mitchell, Paul R. Adler, R. Mark Sule, Keith D. Johnso, Robert Kallenbach, Arvid A. Boe, Russell D. Mathison, Kim A. Cassida, Doohong Min, Kenneth J. Moore
Native Plant Focused Publications
Development of perennial biomass cropping systems is focused on maximizing biomass yield with minimum inputs, particularly nitrogen (N) fertilizer. Historical breeding efforts have focused on increasing biomass yield but have ignored N-use efficiency. The purpose of this study was to quantify the increased N demand associated with realized gains in biomass yield from big bluestem (Andropogon gerardii Vitman) and switchgrass (Panicum virgatum L.) breeding programs. Nitrogen demand was highly variable across locations and years, ranging from − 1.7 to + 6.8 kg N Mg−1 DM, with an average of 2.2 kg N Mg−1 DM. Increases in N demand were closely …
Phomopsis Stem Canker Of Sunflower In North America: Correlation With Climate And Solutions Through Breeding And Management, Brent S. Hulke, Samuel G. Markell, Nolan C. Kane, Febina M. Mathew
Phomopsis Stem Canker Of Sunflower In North America: Correlation With Climate And Solutions Through Breeding And Management, Brent S. Hulke, Samuel G. Markell, Nolan C. Kane, Febina M. Mathew
Agronomy, Horticulture and Plant Science Faculty Publications
Climate change is occurring in the central US and is interacting with agroecological factors to increase biotic stress in sunflower. Certain species of Diaporthe cause Phomopsis stem canker in sunflower and other dicotyledonous weeds and crops. The increase in precipitation already observed in the states of North Dakota, South Dakota, and Minnesota have increased the chances of outbreaks of necrotrophic pathogens, like Diaporthe. We discuss how climate trends, combined with technological, management, and economic interactions, are correlated with increasing incidence of Phomopsis stem canker in these and adjacent areas in North America. Further, we discuss management options and the …
Nitrogen Requirements Of Ethiopian Mustard For Biofuel Feedstock In South Dakota, Phillip Alberti, Shannon Osborne, Febina Mathew, Shakaut Ali, Heidi Sieverding, Sandeep Kumar, Thandiwe Nieya
Nitrogen Requirements Of Ethiopian Mustard For Biofuel Feedstock In South Dakota, Phillip Alberti, Shannon Osborne, Febina Mathew, Shakaut Ali, Heidi Sieverding, Sandeep Kumar, Thandiwe Nieya
Agronomy, Horticulture and Plant Science Faculty Publications
Ethiopian mustard (Brassica carinata A. Braun) is a non-food oilseed crop that has received attention for its potential as a low-input biofuel feedstock suitable for production in the semiarid regions of the Northern Great Plains (NGP). Because B. carinata is a new crop to the NGP, the best management practices have yet to be developed. The objective of the study was to evaluate the effects of N fertilizer rate on seed yield, seed oil concentration, and oil yield of B. carinata and to determine the economic optimum N fertilizer rates. Field studies were conducted at two locations in South …
Soil And Land- Use Change Sustainability In The Northern Great Plains Of The Usa, Deepak Raj Joshi, David E. Clay, Alexander Smart, Sharon A. Clay, Tulsi P. Kharel, Umakanta Mishra
Soil And Land- Use Change Sustainability In The Northern Great Plains Of The Usa, Deepak Raj Joshi, David E. Clay, Alexander Smart, Sharon A. Clay, Tulsi P. Kharel, Umakanta Mishra
Agronomy, Horticulture and Plant Science Faculty Publications
In the Northern Great Plains (NGP), the combined impacts of land-use and climate variability have the potential to place many soils on the tipping point of sustainability. The objectives of this study were to assess if the conversion of grassland to croplands occurred on fragile landscapes in the North America Northern Great Plains. South Dakota and Nebraska were selected for this study because they are located in a climate transition zone. We visually classified 43,200 and 38,400 points in South Dakota and Nebraska, respectively, from high-resolution imagery in 2006, 2012, and 2014 into five different categories (cropland, grassland, habitat, NonAg, …
Using Publicly Available Genbank Data To Teach Plant Phylogeny In High School Classrooms, Madhav P. Nepal, Ethan J. Andersen
Using Publicly Available Genbank Data To Teach Plant Phylogeny In High School Classrooms, Madhav P. Nepal, Ethan J. Andersen
iLEARN Teaching Resources
In this teaching module, students will learn about NCBI GenBank, search for DNA/protein sequences from multiple plant species of a gene that encodes Rubisco enzyme, construct and interpret a phylogenetic tree, and discuss traits that allowed plants to adapt their life on land.
Transcriptomic Response Is More Sensitive To Water Deficit In Shoots Than Roots Of Vitis Riparia (Michx.), Vedbar Singh Khada, Kimberly Vaughn, Juan Xie, Padmapriya Swaminathan, Qin Ma, Grant Cramer, Anne Y. Fennell Dr
Transcriptomic Response Is More Sensitive To Water Deficit In Shoots Than Roots Of Vitis Riparia (Michx.), Vedbar Singh Khada, Kimberly Vaughn, Juan Xie, Padmapriya Swaminathan, Qin Ma, Grant Cramer, Anne Y. Fennell Dr
Agronomy, Horticulture and Plant Science Faculty Publications
Background: Drought is an important constraint on grapevine sustainability. Vitis riparia, widely used in rootstock and scion breeding, has been studied in isolated leaf drying response studies; however, it is essential to identify key root and shoot water deficit signaling traits in intact plants. This information will aid improved scion and rootstock selection and management practices in grapevine. RNAseq data were generated from V. riparia roots and shoots under water deficit and well-watered conditions to determine root signaling and shoot responses to water deficit.
Results: Shoot elongation, photosynthetic rate, and stomatal conductance were significantly reduced in water deficit (WD) treated …
Iris-Eda: An Integrated Rna-Seq Interpretation System For Gene Expression Data Analysis, Brandon Monier, Adam Mcdermaid, Cankun Wang, Jing Zhao, Allison Miller, Anne Fennell, Qin Ma
Iris-Eda: An Integrated Rna-Seq Interpretation System For Gene Expression Data Analysis, Brandon Monier, Adam Mcdermaid, Cankun Wang, Jing Zhao, Allison Miller, Anne Fennell, Qin Ma
Agronomy, Horticulture and Plant Science Faculty Publications
Next-Generation Sequencing has made available substantial amounts of large-scale Omics data, providing unprecedented opportunities to understand complex biological systems. Specifically, the value of RNA-Sequencing (RNA-Seq) data has been confirmed in inferring how gene regulatory systems will respond under various conditions (bulk data) or cell types (single-cell data). RNA-Seq can generate genome-scale gene expression profiles that can be further analyzed using correlation analysis, co-expression analysis, clustering, differential gene expression (DGE), among many other studies. While these analyses can provide invaluable information related to gene expression, integration and interpretation of the results can prove challenging. Here we present a tool called IRIS-EDA, …
Evaluation Of Volatile Metabolites Emitted In-Vivo From Cold-Hardy Grapes During Ripening Using Spme And Gc-Ms: A Proof-Of-Concept, Somchai Rice, Devin L. Maurer, Anne Fennell, Murlidhar Dharmadhikari, Jacek A. Koziel
Evaluation Of Volatile Metabolites Emitted In-Vivo From Cold-Hardy Grapes During Ripening Using Spme And Gc-Ms: A Proof-Of-Concept, Somchai Rice, Devin L. Maurer, Anne Fennell, Murlidhar Dharmadhikari, Jacek A. Koziel
Agronomy, Horticulture and Plant Science Faculty Publications
In this research, we propose a novel concept for a non-destructive evaluation of volatiles emitted from ripening grapes using solid-phase microextraction (SPME). This concept is novel to both the traditional vinifera grapes and the cold-hardy cultivars. Our sample models are cold-hardy varieties in the upper Midwest for which many of the basic multiyear grape flavor and wine style data is needed. Non-destructive sampling included a use of polyvinyl fluoride (PVF) chambers temporarily enclosing and concentrating volatiles emitted by a whole cluster of grapes on a vine and a modified 2 mL glass vial for a vacuum-assisted sampling of volatiles from …
Understanding Greenhouse Gases, Julie M. Mueller, Laura Edwards, Madhav P. Nepal, Larry B. Browning, Matthew L. Miller, P. Troy White
Understanding Greenhouse Gases, Julie M. Mueller, Laura Edwards, Madhav P. Nepal, Larry B. Browning, Matthew L. Miller, P. Troy White
iLEARN Teaching Resources
Students will conduct hands-on experiments to see how greenhouse gases interact with the Earth’s atmosphere and how greenhouse gases affect temperature. This lesson introduces National Geographic’s Geo-Inquiry Process, where students will identify a Geo-inquiry question, collect data, and create a project around the answer to their question. Students will then present their findings to their peers and evaluate their Geo-Inquiry process.
Increasing Warm-Season Native Grass Biomass Using Fire, Herbicide, And Nitrogen Applications, Sharon A. Clay, Alexander Smart, David E. Clay
Increasing Warm-Season Native Grass Biomass Using Fire, Herbicide, And Nitrogen Applications, Sharon A. Clay, Alexander Smart, David E. Clay
Native Plant Focused Publications
The North American Great Plains tallgrass prairie was once a system of native cool and warm season grasses, which have been degraded by non-native invasive plants. Native grass restoration is highly desirable to improve ecosystem functions and productivity. In this two-year study, the impact of fire, herbicide, and nitrogen on productivity and the presence of invasive species [primarily the cool season grass, smooth brome (Bromus inermis Leyss.)] and native warm season native grass species [big bluestem (Andropogon gerardii Vitman), sideoats and blue grama (Bouteloua curtipendula (Michx.) Torr.), and B. gracilis (Willd. Ex Kunth) Lag. ex Griffiths] were investigated. Spring fire …
Eucosma Giganteana (Riley) And Sliphium Perfoliatum L., Morphological Variation In An Insect-Plant Association In Eastern South Dakota, Paul J. Johnson, Arvid Boe, Abigail P. Martens
Eucosma Giganteana (Riley) And Sliphium Perfoliatum L., Morphological Variation In An Insect-Plant Association In Eastern South Dakota, Paul J. Johnson, Arvid Boe, Abigail P. Martens
Native Plant Focused Publications
Silphium perfoliatum L., cup plant, has potential as a new multi-purpose crop. It is pollinator-friendly and has biodiversity enhancement, conservation, economic, and medical potential. In eastern South Dakota, S. perfoliatum can produce more than 20 Mg (million grams) ha-1 of biomass and 0.09 Mg ha-1 of seed in agronomic plantings. The giant eucosma moth, Eucosma giganteana (Riley), is a major pest of agronomic S. perfoliatum in the region. We provide a summary of this insect and its association with its host. Our experimental objectives were to determine if the frequency of rhizome occupation by late instar larvae and if their …
Southeast South Dakota Experiment Farm Annual Progress Report, 2019, Southeast South Dakota Research Farm, South Dakota Agricultural Experiment Station
Southeast South Dakota Experiment Farm Annual Progress Report, 2019, Southeast South Dakota Research Farm, South Dakota Agricultural Experiment Station
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
Pollinator-Mediated Yield Across A Heterogeneous Landscape In Eastern South Dakota, Shane Stiles
Pollinator-Mediated Yield Across A Heterogeneous Landscape In Eastern South Dakota, Shane Stiles
Oak Lake Field Station 30th Anniversary Retreat Presentations
No abstract provided.
Native Grass And Legume Biology And Establishment, Arvid A. Boe, P. J. Johnson
Native Grass And Legume Biology And Establishment, Arvid A. Boe, P. J. Johnson
Oak Lake Field Station 30th Anniversary Retreat Presentations
No abstract provided.
Thaniks For Letting Us Borrow Your Prairie! 10 Years Of Usfws Plant Id Training, Sara Vacek
Thaniks For Letting Us Borrow Your Prairie! 10 Years Of Usfws Plant Id Training, Sara Vacek
Oak Lake Field Station 30th Anniversary Retreat Presentations
No abstract provided.
Brassica Carinata Growth And Yield Response To Nitrogen And Sulfur Fertilizers And Impacts On Selected Soil Parameters And Ghg Fluxes, Dwarika Bhattarai
Brassica Carinata Growth And Yield Response To Nitrogen And Sulfur Fertilizers And Impacts On Selected Soil Parameters And Ghg Fluxes, Dwarika Bhattarai
Electronic Theses and Dissertations
Carinata (Brassica carinata A. Braun), a non-food oilseed crop and an alternative bio-jet fuel feedstock, has received attention for its potential as a low-input option for production in the semi-arid regions of the Northern Great Plains of USA. The crop has a lower N fertilizer requirement as compared to the other oilseeds, suggesting less negative impact on soils and GHGs emissions. Carinata is a new crop to South Dakota (SD), thus, the best management practices have yet to be developed. In addition, no sufficient research to address the impact of growing carinata on soils and GHG emissions has been …
Increasing Accumulation Of Glyceollins In Soybeans Via Optimization Of The Fungal Incubation Process, Stephanie Wootton
Increasing Accumulation Of Glyceollins In Soybeans Via Optimization Of The Fungal Incubation Process, Stephanie Wootton
Electronic Theses and Dissertations
Continual use of antibiotics in the feed of food animals was viewed a solution to the problem of disease outbreaks in livestock produced in confinement operations. This practice also improved animal performance, likely due to the reduction in sub-clinical infections. Unfortunately, this practice led to a new problem, the development of antibiotic resistant microbes. This increase in antibiotic resistance reduced the direct benefits of antibiotics in animal production. Moreover, as antibiotic resistance spread from animal to human pathogens, this practice created a major public health concern. This led the FDA to enact the Veterinary Feed Directive in 2017 that greatly …
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 …
Crop Residue Management Challenges: A Special Issue Overview, David Clay, Ronald Alverson, Jane M.F. Johnson, Douglas L. Karlen, Sharon Clay, Michael Q. Wang, Stephanie A. Bruggeman, Shaina Westhoff
Crop Residue Management Challenges: A Special Issue Overview, David Clay, Ronald Alverson, Jane M.F. Johnson, Douglas L. Karlen, Sharon Clay, Michael Q. Wang, Stephanie A. Bruggeman, Shaina Westhoff
Agronomy, Horticulture and Plant Science Faculty Publications
The amount of crop residues that can be sustainability removed is highly variable and is a function of many factors including the soil, climatic, and plant characteristics. For example, leaving an insufficient amount of crop residue on the soil surface can be detrimental for soil quality, result in loss of soil organic matter (SOM), and increase soil erosion, whereas leaving excessive amounts can impair soil-seed contact, immobilize N, and/or keep soils cool and wet. This special issue evolved as an outcome of, “Crop Residues for Advanced Biofuels: Effects on Soil Carbon” workshop held in Sacramento, CA, in 2017. The goal …