Agronomy and Crop Sciences | Open Access Articles

Anti‐Microbial Activities Of Root Extracts Of Cichorium Intybus L., Quanzhen Wang, Tianming Hu, Yamei Xu

IGC Proceedings (1977-2023)

No abstract provided.

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Promising Features Of The Legume Species Bituminaria Bituminosa As A Novel Forage Plant And For Pharmaceutical Purposes, L. Pecetti, A. Tava, E. Piano, E. Biazzi, S. Esposti, A. Ursino, B. Pintus

IGC Proceedings (1977-2023)

No abstract provided.

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Diversity And Dynamics Of Soil Mesofauna Associated With Natural Grasslands In Central India, Sharmila Roy, Ruquaeya Bano

IGC Proceedings (1977-2023)

No abstract provided.

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Pasture Management For Conservation Of Multipurpose Plants In Italian Mountains, Andrea Pardini, V. Pratesi, R. Tallarico

IGC Proceedings (1977-2023)

No abstract provided.

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Participatory Identification Of Factors Inhibiting Integrated Management Of Livestock And Wildlife Production On Kenyan Rangelands, E. N. Muthiani, S. K. Karimi

IGC Proceedings (1977-2023)

No abstract provided.

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Biomass Production On Farms In The Eastern United States, Thomas C. Keene, S. Ray Smith, Michael D. Montross

IGC Proceedings (1977-2023)

No abstract provided.

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Response Of Cover Crops To Phytopythium Vexans, Phytophthora Nicotianae, And Rhizoctonia Solani, Major Soilborne Pathogens Of Woody Ornamentals, Milan Panth, Anthony L. Witcher, Fulya Baysal-Gurel

Agricultural and Environmental Sciences Faculty Research

Management of plant diseases is a subject of concern for researchers as well as growers. Different management practices are being developed and used to combat the rising number of plant pathogens, which threaten nursery crop production. Use of cover crops for sustainable management of soilborne diseases is being explored as an alternative strategy to the chemicals. However, the potential threat of these cover crops acting as a secondary host of these devastating soilborne pathogens has not been described. We studied the response of the major cover crops being used by woody ornamental growers in the Southeastern United States to Phytopythium …

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Enhancing Our Understanding Of Plant Cell-To-Cell Interactions Using Single-Cell Omics, Sandra Thibivilliers, Marc Libault

Department of Agronomy and Horticulture: Faculty Publications

Plants are composed of cells that physically interact and constantly adapt to their environment. To reveal the contribution of each plant cells to the biology of the entire organism, their molecular, morphological, and physiological attributes must be quantified and analyzed in the context of the morphology of the plant organs. The emergence of single-cell/nucleus omics technologies now allows plant biologists to access different modalities of individual cells including their epigenome and transcriptome to reveal the unique molecular properties of each cell composing the plant and their dynamic regulation during cell differentiation and in response to their environment. In this manuscript, …

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Tandem Duplicate Expression Patterns Are Conserved Between Maize Haplotypes Of The Α-Zein Gene Family, Preston Hurst, James C. Schnable, David R. Holding

Department of Agronomy and Horticulture: Faculty Publications

Tandem duplication gives rise to copy number variation and subsequent functional novelty among genes as well as diversity between individuals in a species. Functional novelty can result from either divergence in coding sequence or divergence in patterns of gene transcriptional regulation. Here, we investigate conservation and divergence of both gene sequence and gene regulation between the copies of the α-zein gene family in maize inbreds B73 and W22. We used RNA-seq data generated from developing, self-pollinated kernels at three developmental stages timed to coincide with early and peak zein expression. The reference genome annotations for B73 and W22 were modified …

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Students And Farmers Planning And Implementing Grass Based Agroecologic Dairy Systems As A Regular Statewide Program: The Development Of Participative Methodology Responsible For 622 Family Farm Projects, W. Murphy, A. Schmitt, F. Busnardo, J. Ross, L. Assing, A. Nacimento

IGC Proceedings (1977-2023)

No abstract provided.

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Protecting Wildlife Habitat On Ranchettes, L. J. Kennedy, Ken Strom, Jacelyn Downey, Alison Lyon‐Holloran, Robert Petty

IGC Proceedings (1977-2023)

No abstract provided.

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Strategies For Sustaining Multiple Ecosystem Services From Rangelands, Kris M. Havstad, J. R. Brown, J. E. Herrick, D. P. C. Peters, E. L. Fredrickson, Brandon T. Bestelmeyer, R. Pieper

IGC Proceedings (1977-2023)

No abstract provided.

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Classroom To Paddock: Delivery Of Grazing Land Management Education In The Northern Territory, Australia, Ellena Hannah

IGC Proceedings (1977-2023)

No abstract provided.

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The Agdal System Or The Art Of Managing Spatio‐Temporality Of Forage Resources And Risks In The High Atlas Mountains Of Morocco, Didier Genin

IGC Proceedings (1977-2023)

No abstract provided.

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Australian Sheep Farmers Are Increasing Pasture Utilisation And Reducing Risk With Easy‐To‐Use Tools From Lifetimewool, M. Curnow, J. Whale, D. Gordon

IGC Proceedings (1977-2023)

No abstract provided.

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Are Drought‐Related Crashes In Pastoral Cattle Herds Predictable? — More Evidence Of Equilibrium Dynamics From The Douthern Ethiopian Rangelands, D. Layne Coppock, G. Gebru, S. Mesele, S. Desta

IGC Proceedings (1977-2023)

No abstract provided.

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An Evolving Model For A Livestock And Fodder Development Project Involving The Poverty Stricken Communities Of The Eastern Cape Province, South Africa, P. W. Conradie, D. Swart, B. King, M. Macanda, U. Gulwa, G. Jordaan

IGC Proceedings (1977-2023)

No abstract provided.

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Correlation, Regression Analysis Of Seed Oil Contents In Relation To Morphological Characters In Cotton, Hafiz Muhammad Awais, Sarmad Frogh Arshad, Wajad Nazeer, Muhammad Usman, Abdul Latif Khan Tipu, Muqarrab Ali, Asif Saleem, Hasan Junaid Arshad, Asma Shah Rukh

Journal of Bioresource Management

Cotton is the backbone of Pakistan’s economy. More than half of the export of Pakistan depends on cotton and cotton-based products. Morphological quantitative traits are important for estimation of cotton yield. In this regard, a study was conducted to evaluate the morphological responses on cotton crop at experimental farm of MNS-University of Agricultural Multan during the year 2019-2020. Four cotton varieties with different time windows (early, normal and late) were sown in a randomized complete block design (RCBD) in a split plot arrangement. Correlation and regression studies of cultivars of Gossypium and Malvaceae were analyzed for quantitative characters. Result revealed …

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Why Farmers Don't Always Practice 'Optimum' Management: Case Study Of Small Stock Ranching Systems In Southern Namibia, Stephanie E. Domptail, Alexander Popp, Ernst‐August Nuppenau

IGC Proceedings (1977-2023)

No abstract provided.

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Assessing The Contribution Of Mixed Farming Systems To Biodiversity Across Australia's Sheep‐Wheat Zone: The Grain & Graze Participatory Research Model, Kerry L. Bridle, Peter Mcquillan, Dave Green, Janet Smith, Margy Fitzgerald, Ted Lefroy

IGC Proceedings (1977-2023)

No abstract provided.

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Yield And Economic Performance Of Crop Rotation Systems In South Dakota, Hanxiao Feng, Tong Wang, Shannon L. Osborne, Sandeep Kumar

Economics Faculty Publications

Crop yield and economic profitability, both highly dependent on local crop management, soil characteristics, and weather conditions, are among the most influential factors to consider when considering a cropping system. The objective of this study was to compare the economic returns of three different 4-yr diverse crop rotations with that of a 2-yr traditional crop rotation in eastern South Dakota. The rotations included were (a) corn (Zea mays L.)–soybean [Glycine max (L.) Merr.]–spring wheat (Triticum aestivum L.)–pea (Pisum sativum L.) (CSSwP), (b) corn–pea–winter wheat–soybean (CPWwS), (c) corn–oat (Avena sativa L.)–winter wheat–soybean (COWwS), and (d) corn–soybean …

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International Rice Outlook: International Rice Baseline Projections 2020-2030, A. Durand-Morat, S. Bairagi

AAES Research Reports and Research Bulletins

The coronavirus (COVID-19) pandemic and subsequent lockdowns impacted all economies worldwide and created an economic recession far graver than the Great Recession, contracting the global growth of gross domestic product (GDP) nearly by 4.0% in 2020, compared to -2.0% in 2009 (IHS Markit database). COVID-19 disrupted global and local food supply chains, and resulted in a significant increase in food prices (FAO, 2021). Both global and domestic rice prices increased, driven primarily by temporary export restrictions imposed by several leading rice exporters, such as Vietnam and Myanmar. The market uncertainty also created in panic-buying and hoarding; consequently, the rice demand …

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Winter Cereal Rye Cover Crop Decreased Nitrous Oxide Emissions During Early Spring, Graig W. Reicks, David E. Clay, Sharon A. Clay, Deepak R. Joshi, Janet Moriles-Miller, Shaina Westhoff, Aaron Lee M. Daigh, Stephanie A. Bruggeman

Agronomy, Horticulture and Plant Science Faculty Publications

Despite differences between the cover crop growth and decomposition phases, few greenhouse gas (GHG) studies have separated these phases from each other. This study’s hypothesis was that a living cover crop reduces soil inorganic N concentrations and soil water, thereby reducing N₂O emissions. We quantified the effects of a fall-planted living cereal rye (Secale cereale L.) cover crop (2017, 2018, 2019) on the following spring’s soil temperature, soil water, water-filled porosity (WFP), inorganic N, and GHG (N₂O-N and CO₂–C) emissions and compared these measurements to bare soil. The experimental design was a randomized …

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Season Advancement Of Cool Season Cut Flower Crops Snapdragon And Peony, Maegen A. Lewis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Demand and production of specialty cut flowers is growing across the U.S., but research is lacking in the U.S. Intermountain West, where the semi-arid and high elevation climate offers unique challenges for growers. The goal of this study was to evaluate the stem quality, harvest timing, and yield of snapdragon (Antirrhinum majus) ‘Chantilly’, ‘Potomac’, and ‘Rocket’ and peony (Paeonia lactiflora) ‘Coral Charm’ as cool-season cut flower crops under high tunnel and field production in North Logan, Utah. Snapdragons were transplanted at three-week intervals beginning in early-February in high tunnels and ending in late-May in the field. …

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Evaluating Evapotranspiration And Management Of Glyphosate-Resistant Palmer Amaranth (Amaranthus Palmeri S. Watson), Jasmine M. Mausbach

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Palmer amaranth (PA) is the most problematic weed in agronomic cropping systems in the United States. Acetolactate synthase (ALS) inhibitor-/glyphosate-resistant (GR) PA has been confirmed in Nebraska and is widespread in several counties. Soybean resistant to isoxaflutole/glufosinate/glyphosate has been developed to provide additional herbicide sites of action for control of herbicide-resistant weeds. The objectives of this study were to evaluate herbicide programs for control of ALS inhibitor/GR PA and their effect on PA density and biomass, as well as soybean injury and yield in isoxaflutole/glufosinate/glyphosate-resistant soybean. A PRE herbicide fb glufosinate controlled PA 80%–99% 21 d after late-POST in 2018 …

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Quantifying The Combined Effect Of Abiotic Factors On The Decomposition Of Organic Matter In Semiarid Grassland Soils, Elnazsadat Hosseiniaghdam

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Grassland ecosystems play a critical role in the global carbon cycle, and their cumulative carbon dioxide (CO₂) emissions can be affected by animal grazing where litter (i.e., dead plant material) is trampled into the soil. However, the subsequent effects of trampling on litter decomposition are not well understood. Meanwhile, abiotic factors, especially temperature and soil moisture, are known to strongly affect litter decomposition. Due to the very small number of published studies that have considered litter placement, either litter on top of soil or litter mixed with soil as a factor in litter decomposition under different temperature and …

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Impacts Of Crop Insurance And Intra-Season Hedging On Long-Run Net Income Risk, Kara Zimmerman

Department of Agricultural Economics: Dissertations, Theses, and Student Research

Each year producers must make risk management decisions early in the growing season when many variables are unknown. In this thesis we create an empirical model utilizing thirty years (1989-2018) of historical yield, cost, and daily price series data, to determine the optimal risk management strategy of crop insurance and an intra-season marketing plan that will both minimize net income risk and maximize average net income. The empirical model is taken a step further to include an out-of-sample year in order to test the robustness of empirical results to financially devastating events that have never been seen. We test the …

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Understanding Resistance Mechanisms To Trifluralin In An Arkansas Palmer Amaranth Population, Fidel Gonzalez-Torralva, Jason K. Norsworthy

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Amaranthus palmeri S. Watson (Palmer amaranth) is considered a problematic and troublesome weed species in many crops in the USA, partly because of its ability to evolve resistance to herbicides. In this study, we explored the mechanism of resistance in a trifluralin-resistant A. palmeri accession collected from Arkansas, USA. Dose-response assays using agar plates demonstrated an EC₅₀ (effective concentration that reduces root length by 50%) of 1.02 µM trifluralin compared to 0.39 µM obtained in the susceptible accession. Thus, under these conditions, the resistant accession required 2.6 times more trifluralin to inhibit root length by 50%. Seeds in the …

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Establishing Regenerative Pasture Systems Using Management Intensive Grazing In The Ozarks, Shelbi M. Mundy

Graduate Theses/Dissertations

Soil carbon and soil health are important topics relating to how climate change is impacting agriculture, and how agriculture can in turn impact climate change. The agriculture industry, particularly beef production, has a large opportunity to use conservation agriculture techniques, such as rotational grazing, to offset some of the industry’s impact on carbon emissions, erosion, water pollution, and other environmental issues. This study is the beginning of a long-term project exploring regenerative pasture systems in the Ozarks. The project takes place in a rotational grazing system with 12 paddocks. The objectives of this study are to characterize soil types by …

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Climate Adaptation And Water Conservation Decision-Making In Paso Robles, California Vineyards, Christopher R. Klier

Master's Theses

This paper examines vineyard perceptions and adoption of climate change adaptation and water conservation measures in the Paso Robles American Viticultural Area (AVA). A survey was distributed to all 220 vineyards and vineyard management companies that operate in the AVA, with a 53.64% response rate. The objective of the survey was to determine vineyard manager and owner attitudes towards climate change and adaptation, as well as their perceptions of how these threats would impact their operation. A second objective was to document the current level of water conservation and climate adaptation while identifying the barriers and opportunities for further adoption …

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Full-Text Articles in Agronomy and Crop Sciences

Anti‐Microbial Activities Of Root Extracts Of Cichorium Intybus L., Quanzhen Wang, Tianming Hu, Yamei Xu

IGC Proceedings (1977-2023)

Promising Features Of The Legume Species Bituminaria Bituminosa As A Novel Forage Plant And For Pharmaceutical Purposes, L. Pecetti, A. Tava, E. Piano, E. Biazzi, S. Esposti, A. Ursino, B. Pintus

IGC Proceedings (1977-2023)

Diversity And Dynamics Of Soil Mesofauna Associated With Natural Grasslands In Central India, Sharmila Roy, Ruquaeya Bano

IGC Proceedings (1977-2023)

Pasture Management For Conservation Of Multipurpose Plants In Italian Mountains, Andrea Pardini, V. Pratesi, R. Tallarico

IGC Proceedings (1977-2023)

Participatory Identification Of Factors Inhibiting Integrated Management Of Livestock And Wildlife Production On Kenyan Rangelands, E. N. Muthiani, S. K. Karimi

IGC Proceedings (1977-2023)

Biomass Production On Farms In The Eastern United States, Thomas C. Keene, S. Ray Smith, Michael D. Montross

IGC Proceedings (1977-2023)

Response Of Cover Crops To Phytopythium Vexans, Phytophthora Nicotianae, And Rhizoctonia Solani, Major Soilborne Pathogens Of Woody Ornamentals, Milan Panth, Anthony L. Witcher, Fulya Baysal-Gurel

Agricultural and Environmental Sciences Faculty Research

Enhancing Our Understanding Of Plant Cell-To-Cell Interactions Using Single-Cell Omics, Sandra Thibivilliers, Marc Libault

Department of Agronomy and Horticulture: Faculty Publications

Tandem Duplicate Expression Patterns Are Conserved Between Maize Haplotypes Of The Α-Zein Gene Family, Preston Hurst, James C. Schnable, David R. Holding

Department of Agronomy and Horticulture: Faculty Publications

Students And Farmers Planning And Implementing Grass Based Agroecologic Dairy Systems As A Regular Statewide Program: The Development Of Participative Methodology Responsible For 622 Family Farm Projects, W. Murphy, A. Schmitt, F. Busnardo, J. Ross, L. Assing, A. Nacimento

IGC Proceedings (1977-2023)

Protecting Wildlife Habitat On Ranchettes, L. J. Kennedy, Ken Strom, Jacelyn Downey, Alison Lyon‐Holloran, Robert Petty

IGC Proceedings (1977-2023)

Strategies For Sustaining Multiple Ecosystem Services From Rangelands, Kris M. Havstad, J. R. Brown, J. E. Herrick, D. P. C. Peters, E. L. Fredrickson, Brandon T. Bestelmeyer, R. Pieper

IGC Proceedings (1977-2023)

Classroom To Paddock: Delivery Of Grazing Land Management Education In The Northern Territory, Australia, Ellena Hannah

IGC Proceedings (1977-2023)

The Agdal System Or The Art Of Managing Spatio‐Temporality Of Forage Resources And Risks In The High Atlas Mountains Of Morocco, Didier Genin

IGC Proceedings (1977-2023)

Australian Sheep Farmers Are Increasing Pasture Utilisation And Reducing Risk With Easy‐To‐Use Tools From Lifetimewool, M. Curnow, J. Whale, D. Gordon

IGC Proceedings (1977-2023)

Are Drought‐Related Crashes In Pastoral Cattle Herds Predictable? — More Evidence Of Equilibrium Dynamics From The Douthern Ethiopian Rangelands, D. Layne Coppock, G. Gebru, S. Mesele, S. Desta

IGC Proceedings (1977-2023)

An Evolving Model For A Livestock And Fodder Development Project Involving The Poverty Stricken Communities Of The Eastern Cape Province, South Africa, P. W. Conradie, D. Swart, B. King, M. Macanda, U. Gulwa, G. Jordaan

IGC Proceedings (1977-2023)

Correlation, Regression Analysis Of Seed Oil Contents In Relation To Morphological Characters In Cotton, Hafiz Muhammad Awais, Sarmad Frogh Arshad, Wajad Nazeer, Muhammad Usman, Abdul Latif Khan Tipu, Muqarrab Ali, Asif Saleem, Hasan Junaid Arshad, Asma Shah Rukh

Journal of Bioresource Management

Why Farmers Don't Always Practice 'Optimum' Management: Case Study Of Small Stock Ranching Systems In Southern Namibia, Stephanie E. Domptail, Alexander Popp, Ernst‐August Nuppenau

IGC Proceedings (1977-2023)

Assessing The Contribution Of Mixed Farming Systems To Biodiversity Across Australia's Sheep‐Wheat Zone: The Grain & Graze Participatory Research Model, Kerry L. Bridle, Peter Mcquillan, Dave Green, Janet Smith, Margy Fitzgerald, Ted Lefroy

IGC Proceedings (1977-2023)

Yield And Economic Performance Of Crop Rotation Systems In South Dakota, Hanxiao Feng, Tong Wang, Shannon L. Osborne, Sandeep Kumar

Economics Faculty Publications

International Rice Outlook: International Rice Baseline Projections 2020-2030, A. Durand-Morat, S. Bairagi

AAES Research Reports and Research Bulletins

Winter Cereal Rye Cover Crop Decreased Nitrous Oxide Emissions During Early Spring, Graig W. Reicks, David E. Clay, Sharon A. Clay, Deepak R. Joshi, Janet Moriles-Miller, Shaina Westhoff, Aaron Lee M. Daigh, Stephanie A. Bruggeman

Agronomy, Horticulture and Plant Science Faculty Publications

Season Advancement Of Cool Season Cut Flower Crops Snapdragon And Peony, Maegen A. Lewis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Evaluating Evapotranspiration And Management Of Glyphosate-Resistant Palmer Amaranth (Amaranthus Palmeri S. Watson), Jasmine M. Mausbach

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Quantifying The Combined Effect Of Abiotic Factors On The Decomposition Of Organic Matter In Semiarid Grassland Soils, Elnazsadat Hosseiniaghdam

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Impacts Of Crop Insurance And Intra-Season Hedging On Long-Run Net Income Risk, Kara Zimmerman

Department of Agricultural Economics: Dissertations, Theses, and Student Research

Understanding Resistance Mechanisms To Trifluralin In An Arkansas Palmer Amaranth Population, Fidel Gonzalez-Torralva, Jason K. Norsworthy

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Establishing Regenerative Pasture Systems Using Management Intensive Grazing In The Ozarks, Shelbi M. Mundy

Graduate Theses/Dissertations

Climate Adaptation And Water Conservation Decision-Making In Paso Robles, California Vineyards, Christopher R. Klier

Master's Theses