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Proceedings Of The 48th Annual Meeting, Southern Soybean Disease Workers (March 3, 2021, Virtual Content), Tessie Wilkerson, Trey Price, Tom W. Allen, Burton H. Bluhm, Danise Beadle

Southern Soybean Disease Workers: Conference Proceedings

2021 Southern Soybean Disease Workers Agenda

Virtual | Wednesday, March 3, 2021

Southern United States Soybean Disease Loss Estimates for 2020. TW Allen, K Bissonnette, CA Bradley, JP Damicone, NS Dufault, TR Faske, T Isakeit, RC Kemerait, A Koehler, D Langston, JD Mueller, GB Padgett, PP Price, EJ Sikora, IM Small, L Thiessen, and H Young

Student papers (Tessie Wilkerson, moderator)

Secondary metabolites produced by Xylaria necrophora are responsible for the foliar symptoms associated with taproot decline of soybean. Teddy Garcia-Aroca, Trey Price, José Solórzano, David Galo, Sophie Sheffield, Jonathan K. Richards, and Vinson P. Doyle

Meta-analysis of fungicide performance …

Analysis Of Root Morphological Variation Of Different Alfalfa Cultivars, Y. S. Wang, Linqing Yu, L. J. Zhang, C. Y. Zhang

IGC Proceedings (1977-2023)

No abstract provided.

Issr Markers For Alfalfa Conferring Resistance To Common Leafspot, Yu Wang, Qinghua Yuan, Xianglin Li

IGC Proceedings (1977-2023)

No abstract provided.

One Of The World Wide Elite Pasture‐Clovers, Yuedong Wang

IGC Proceedings (1977-2023)

No abstract provided.

What Does Past Research Tell Us About Alfalfa Drying Rates?, Jordyn Bush

Kentucky Alfalfa and Stored Forage Conference

Today I’m going to give everyone a brief overview of a literature review I’ve been working on at the request of a local farmer. While writing this literature review, I looked at the factors that influence how quickly alfalfa dries down. I also read past research that has been conducted in an attempt to predict when hay will be dry or how long it will take to do so. The ultimate goal of this literature review was to determine the feasibility of creating some sort of hay drying prediction or forecasting system for Kentucky.

Increased Stress Tolerance In Transgenic Alfalfa Expressing At. Dreb1c Gene By Agrobacterium‐Mediated Genetic Transformation, Yongxin Wang, Ning Guan, Cong Li

IGC Proceedings (1977-2023)

No abstract provided.

Genetic Diversity Analysis Of Ceratoides. (Tourn.) Gagnebin Germplasm Based On Rapd, Xuemin Wang, Hongwen Gao, Bing Han, Zan Wang, Jin Yi

IGC Proceedings (1977-2023)

No abstract provided.

Issr Analysis On Genetic Diversity Of Wild Agrostis Stolonifera L. Germplasm Resources, Xiaoli Wang, Chengbin Tang, Li Zhong, Wei Chen, Jiahai Wu, Qun Mu, Xiaoxia Liu

IGC Proceedings (1977-2023)

No abstract provided.

Moran Eigenvector Filtering Of Multi-Year Yield Data With Application To Zone Development, Dan S. Long, Daniel A. Griffith, Craig K. Kvien, David E. Clay

Agronomy, Horticulture and Plant Science Faculty Publications

A time‐series of yield monitor data may be used to identify field areas of consistently low or high yield to serve as productivity zones for site‐specific crop management. However, transient factors that affect yield in 1 yr, but not every year, detract from this approach. The objective of this study was to illustrate Moran eigenvector spatial filtering (MESF) with results from analysis of multi‐year crop yield data from two farm fields in the United States. The MESF method accounts for temporal autocorrelation within a common factor map representing the correlation across years and partitions stochastic geographic variation into spatially structured …

Nitrogen Fertilization And Glyphosate-Resistant Alfalfa Termination Method Effects On First-Year Silage Corn, Jason Clark, Matt A. Yost, Thomas C. Griggs, Grant E. Cardon, Corey V. Ransom, J. Earl Creech

Agronomy, Horticulture and Plant Science Faculty Publications

Tillage type/timing and herbicide application date may change the amount and timing of N mineralization, altering fertilizer N needs for first-year corn (Zea mays L.) following glyphosate [N-(phosphonomethyl)glycine]-resistant (GR) alfalfa (Medicago sativa L.). Studies were conducted in 2012 and 2013 in Utah. Yield, quality, and economic return of silage corn as affected by five tillage type/timings (fall conventional till, spring conventional till, fall strip-till, spring strip-till, and no-till), three herbicide application dates for alfalfa termination (fall, spring, and in-crop), and four N rates (0, 56, 112, and 224 kg ha−1) were evaluated. Silage corn yield and quality following …

Mechanism Of Resistance To S-Metolachlor In Palmer Amaranth, Gulab Rangani, Matheus M. Noguera, Reiofeli Algodon Salas-Perez, Lariza Benedetti, Nilda Roma-Burgos

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Herbicides are major tools for effective weed management. The evolution of resistance to herbicides in weedy species, especially contributed by non-target-site-based resistance (NTSR) is a worrisome issue in crop production globally. Glyphosate-resistant Palmer amaranth (Amaranthus palmeri) is one of the extremely difficult weeds in southern US crop production. In this study, we present the level and molecular basis of resistance to the chloroacetamide herbicide, S-metolachlor, in six field-evolved A. palmeri populations that had survivors at the recommended field-dose (1.1 kg ai ha⁻¹). These samples were collected in 2014 and 2015. The level of resistance was …

Soil Quality Indices As Affected By Long-Term Burning, Irrigation, Tillage, And Fertility Management, Helen C.S. Amorim, Amanda Ashworth, Kristofor R. Brye, Brian J. Wienhold, Mary C. Savin, Phillip R. Owens, Sergio Silva

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Understanding the impacts of long-term agricultural practices on soil quality (SQ) is key for sustaining agroecosystem productivity. This study investigated conventional and no-tillage (NT), residue burning and no burning, residue level (high and low), and irrigation (irrigated and dryland) effects on soil properties, SQ, and crop yields following 16 yr of a wheat (Triticum aestivum L.)–soybean [Glycine max (L.) Merr.] double-crop system via the Soil Management Assessment Framework (SMAF). A field experiment was conducted in the Lower Mississippi River Delta region on a silt-loam soil. Bulk density, soil organic C (SOC), total N (TN), pH, electrical conductivity (EC), …

Life Line March 2021, Otterbein Biology And Earth Science Department

Life Line - The Biology Department Newsletter

In this issue:

A Note from the Chair; The Department Welcomes Dr. Rich; Senior Research Symposium Goes Virtual; Three Department Faculty Members Win Teaching Awards; Svitana Helps NGWA Go Online; Carter '15 Earns Ph.D. in Nuclear Forensics; Revamping a Campus to Return to our Cardinal Community; Professor Uses Novel Teaching Practices During Pandemic; Otterbein Introduces Signature STEM Series to Increase Connection; Young Receives Career Award; Malacogy in a Time of COVID; COVID Conversations; Canine Rabies Vaccination in Ethiopia; The Cardinal Science Scholar Program; Bird Anatomy.

Assessing Outcome Predictability In Prairie Strip Establishment, Justin Meissen, Alec Glidden

Tallgrass Prairie Publications and Reports

In order to secure long-term practice buy-in and increase new adoption of highly beneficial conservation initiatives like the USDA’s Prairie Strips practice, it is important to ensure farmers can successfully employ native plant revegetation methods on their first try. Many farmers and landowners are new to establishing native vegetation, and must rely on second-hand forms of information such as practice implementation guidelines. Guidelines that are currently available are often not based on applicable scientific research. A strong scientific understanding of the methods that can achieve success in a cost-effective way are required to inform useful prairie reconstruction guidelines. In particular, …

Recurrent Selection With Low Herbicide Rates And Salt Stress Decrease Sensitivity Of Echinochloa Colona To Imidazolinone, Lariza Benedetti, Vivian Ebeling Viana, Pamela Carvalho-Moore, Vinicios Rafael Gehrke, Gustavo Maia Souza, Edinalvo Rabaioli Camargo, Luis Antonio De Avila, Nilda Roma-Burgos

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Weeds represent an increasing challenge for crop systems since they have evolved adaptability to adverse environmental conditions, such as salinity stress. Herbicide effectiveness can be altered by the quality of water in which the weed is growing. This research aimed to study the combined effect of salt stress and recurrent selection with a sublethal dose of imidazolinone herbicides in the shifting of the sensitivity of Echinochloa colona (L.) Link (junglerice) to imidazolinone herbicides. This study was divided into two experiments; in experiment I, three recurrent selection cycles were conducted in Pelotas/RS/Brazil with imazapic + imazapyr at 0.125× the field rate; …

Cultivating Hops For Cone Production In Nebraska, Stacy A. Adams

Department of Agronomy and Horticulture: Faculty Publications

The hop cone is the primary product of agronomic value when growing Humulus lupulus L. (common hop). Cones are modified stem and leaf structures that protect the female flower cluster that forms chemical compounds important for flavoring beer and other uses. The majority of hops in the United States (~96%) is grown in the states of Washington, Oregon, and Idaho. Hops can be grown in very diverse climates, but it is the climatic consistency of the Pacific NW that provides product consistency and reasoning commercial hops production is prevalent in the region. Hops is a niche crop outside of the …

Polyploidization Of Sexual Diploid Brachiaria Decumbens For Intraspecific Hybridization, Cacilda B. Valle, C. Simioni, Liana Jank, Rosangela M. S. Resende

IGC Proceedings (1977-2023)

No abstract provided.

Screening Brachiaria Hybrids For Resistance To The Pasture Spittlebug Notozulia Entreriana (Berg, 1879) (Hemiptera: Cercopidae) In Central Brazil, José R. Valério, L. R. Barbosa, Cacilda Borges Do Valle, M. Rabaiolli, M. C. M. Oliveira

IGC Proceedings (1977-2023)

No abstract provided.

Identification Of Genomic Components Among Species Of Genus Zea By Multi‐Color Gish, Qilin Tang, Tingzhao Rong

IGC Proceedings (1977-2023)

No abstract provided.

Study On Cloning And Expression Analysis Of Cold Tolerance Genes In Different Fall Dormant Alfalfa, Jinglin Shen, Ruiping Guo, Jing Zhang, Hongyu Tang, Hangtong Fang, Xudong Shi, Zhuo Hao, Xue Bai

IGC Proceedings (1977-2023)

No abstract provided.

Qualitative Evaluation And Character Heritability Of Leaf Blade And Stem From Pennisetum Sp. Clones, Mércia V. F. Dos Santos, M. A. Da Silva, Mário De A. Lira, José C. B. Dubeux Jr., G. G. L. De Araujo, Erinaldo Viana De Freitas

IGC Proceedings (1977-2023)

No abstract provided.

Collecting And Characterizing Landrace Populations Of Trifolium Pratense In Uruguay, Rodrigo Zarza, Mónica Rebuffo, Rosario Alzugaray, Federico Condon, Esteban Casaretto, Omar Borsani, Jorge Monza

IGC Proceedings (1977-2023)

No abstract provided.

Characterizing Nematode Communities In Carrot Fields And Their Bioindicator Role For Soil Health, A. Habteweld, D. Brainard, A. Kravchencko, Parwinder Grewal, H. Melakeberhan

School of Earth, Environmental, & Marine Sciences Faculty Publications

Plant-parasitic nematodes (PPN) are known to reduce quality and yield of carrot (Daucus carota var. sativus). Efficient nematode management begins with identifying the predominant PPN present in a given field before taking any management decisions. The management decisions should also consider suppression of PPN and promotion of beneficial nematodes represented by bacterivores, fungivores, omnivores, and predators to improve soil health conditions. We selected four carrot fields suspected to have PPN problems in Mason and Oceana counties in Michigan, USA. The counties are located in the major carrot-producing regions of Michigan. These sites have not been previously sampled for …

Over‐Expression Of Tricarboxylic Acid Metabolism Genes In Forage Crops Neonotonia Wightii And Brachiaria Brizantha Leads To Ectropic Root Development, V. Quecini, R. M. R. Moreti, K. M. R. Duarte, V. B. G. Alcantara, M. A. C. De Lucena, C. A. Colombo, W. J. Siqueira, P. B. Alcantara

IGC Proceedings (1977-2023)

No abstract provided.

Physiological Integration Of Photosynthates And Changes Of Endogenous Aba And Iaa In The Connected Ramets Of Buchloe Dactyloides (Nutt.) Texoka After Supply Of Water Heterogeneity, Yongqiang Qian, Zhenyuan Sun, Lei Han, Guansheng Ju

IGC Proceedings (1977-2023)

No abstract provided.

Plantlet Regeneration From The Mature Embryo Of Bothriochloa Ischaemum, Na Yu, Kuanhu Dong

IGC Proceedings (1977-2023)

No abstract provided.

Improved Boreal Forest Wildfire Fuel Type Mapping In Interior Alaska Using Aviris-Ng Hyperspectral Data, Christopher William Smith, Santosh K. Panda, Uma Suren Bhatt, Franz J. Meyer

Aspen Bibliography

In Alaska the current wildfire fuel map products were generated from low spatial (30 m) and spectral resolution (11 bands) Landsat 8 satellite imagery which resulted in map products that not only lack the granularity but also have insufficient accuracy to be effective in fire and fuel management at a local scale. In this study we used higher spatial and spectral resolution AVIRIS-NG hyperspectral data (acquired as part of the NASA ABoVE project campaign) to generate boreal forest vegetation and fire fuel maps. Based on our field plot data, random forest classified images derived from 304 AVIRIS-NG bands at Viereck …

Shoot And Crown Development Of Alfalfa (Medicago Sativa L.) Seedlings When Defoliated At Different Regrowth Intervals, M. Ito, T. Takahashi, T. Okajima

IGC Proceedings (1977-2023)

No abstract provided.

Analysis Of Issr Markers Linked To Disease Resistance Gene Of F1 In Alfalfa, Fang Meng, Qinghua Yuan

IGC Proceedings (1977-2023)

No abstract provided.

Silencing Ga20‐Oxidase Gene By Rnai For Breeding Dwarf Perennial Ryegrass, Xinrong Ma, Xin Tan, Xiaoya Sun

IGC Proceedings (1977-2023)

No abstract provided.