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Articles 16321 - 16350 of 302419
Full-Text Articles in Physical Sciences and Mathematics
Ecohydrology, Cultural Perceptions, And Recovery Of Freshwater Wetlands In A Heavily Managed Urban Aquifer, Jessica Ashley Balerna
Ecohydrology, Cultural Perceptions, And Recovery Of Freshwater Wetlands In A Heavily Managed Urban Aquifer, Jessica Ashley Balerna
USF Tampa Graduate Theses and Dissertations
Freshwater wetlands provide essential ecosystem services that influence, and are influenced by, human perceptions and behaviors. I explore these feedbacks in the Tampa Bay region, which hosts numerous freshwater wetlands subjected to population increases, economic growth, and shifting management policies. These wetlands are embedded in urban and residential areas, where people can observe and respond to changes in wetland condition over time. I utilized long-term (1991–2018), high sample size (n=152) datasets to assess how wetland inundation responds to the interactive effects of climate variation and shifts in water conservation policies primarily related to cutbacks in groundwater extraction. As wetland ecosystem …
Remote Medical Diagnosis Via Infrared Thermography And Augmented Reality, Frederick M. Selkey
Remote Medical Diagnosis Via Infrared Thermography And Augmented Reality, Frederick M. Selkey
USF Tampa Graduate Theses and Dissertations
Fast, accurate, and non-invasive diagnostic techniques are required by the medical industry to increase the success of medical treatments and enhance the quality of patient care. Medical IRT has been demonstrated reasonably effective at diagnosing and monitoring several physiological conditions. Diversities in the human body, physical and psychological condition, measurement equipment, and environment all influence the sensitive readings obtained by passive IR measurement devices. New standards for medical IRT and fever screening have been demonstrated effective, but there is limited adherence to the guidelines [36]. Absolute temperature readings require regular calibration checks and can easily be thrown off by noise. …
Epidemic Highs And Lows: A Stochastic Diffusion Model For Active Cases, Luis F. Gordillo, Priscilla E. Greenwood, Dana Strong
Epidemic Highs And Lows: A Stochastic Diffusion Model For Active Cases, Luis F. Gordillo, Priscilla E. Greenwood, Dana Strong
Mathematics and Statistics Faculty Publications
We derive a stochastic epidemic model for the evolving density of infective individuals in a large population. Data shows main features of a typical epidemic consist of low periods interspersed without breaks of various intensities and duration. In our stochastic differential model, a novel reproductive term combines a factor expressing the recent notion of ‘attenuated Allee effect’ and a capacity factor is controlling the size of the process. Simulation of this model produces sample paths of the stochastic density of infectives, which behave much like long-time Covid-19 case data of recent years. Writing the process as a stochastic diffusion allows …
Powerpoint - Post-Planting Biodiversity Inventory, Center For Urban Resilience
Powerpoint - Post-Planting Biodiversity Inventory, Center For Urban Resilience
Module 10: Garden Ecology
No abstract provided.
Lesson Plan - Post-Planting Biodiversity Inventory, Center For Urban Resilience
Lesson Plan - Post-Planting Biodiversity Inventory, Center For Urban Resilience
Module 10: Garden Ecology
The purpose of this lesson is to conduct post-planting biodiversity inventories
Powerpoint - Attracting Pollinators, Center For Urban Resilience
Powerpoint - Attracting Pollinators, Center For Urban Resilience
Module 10: Garden Ecology
No abstract provided.
Source-Free Domain Adaptation For Sleep Stage Classification, Yasmin Niknam
Source-Free Domain Adaptation For Sleep Stage Classification, Yasmin Niknam
Electronic Thesis and Dissertation Repository
The popularity of machine learning algorithms has increased in recent years as data volumes have risen, algorithms have advanced, and computational power and storage have improved. EEG-based sleep staging has become one of the most active research areas over the last decade. Labeling each sleep stage manually is a labor-intensive and time-consuming process that requires expertise, making it susceptible to human error. In the meantime, training models on an unseen dataset remains challenging due to physiological differences between subjects and electrode sensor configurations. Unsupervised domain adaptation approaches may provide a solution to this problem by borrowing knowledge from a labeled …
A Multiscale Linkage Between Riverscape And Fish Community Coevolution, Loren W. Stearman
A Multiscale Linkage Between Riverscape And Fish Community Coevolution, Loren W. Stearman
Dissertations
Sediment dynamics are foundational to stream and watershed morphology. Yet aquatic ecologists have relied on an oversimplified model of sediment dynamics characterizing sediments as agents of stream bed burial, and which fails to describe many types of aquatic habitat evolution. In this dissertation I employ both fluvial geomorphic and ecological frameworks to gain a deeper understanding of how sediment dynamics shape stream morphology and fish community evolution at multiple scales. Using a paired historic and contemporary approach, I analyzed geomorphic evolution and fish community change in the Bayou Pierre, Mississippi, from the 1980s to recent. Patterns of erosion due to …
Revised Draft Final Quarterly Operations And Maintenance Report Butte Treatment Lagoon System – Fourth Quarter 2021, Pioneer Technical Services, Inc.
Revised Draft Final Quarterly Operations And Maintenance Report Butte Treatment Lagoon System – Fourth Quarter 2021, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
The Role Of Eco-Tourism In The Environmental Protection Of The Mountains Of Pamirs, Furough Shakarmamadova
The Role Of Eco-Tourism In The Environmental Protection Of The Mountains Of Pamirs, Furough Shakarmamadova
USF Tampa Graduate Theses and Dissertations
ABSTRACTThe Central Asian nation of Tajikistan became independent in 1991. Tajikistan is a mountainous country with a great potential for tourism development. Nevertheless, there are limitations to the development of eco-tourism. I conducted my study to investigate the potential for developing eco-tourism in the eastern part of Tajikistan (the Pamirs). My overarching question was how does eco-tourism relate to the protection of the environment in Pamirs and can it improve the quality of people's lives? To answer this question, I focused on identifying the Best Management Practices (BMP) of eco-tourism in the region and what specific policies, if any, exist …
A Review Of Literature On The Usage Of Low-Cost Sensors To Measure Particulate Matter, Amit U. Raysoni, Sai Deepak Pinakana, Esmeralda Mendez, Dawid K. Wladyka, Katarzyna Sepielak, Owen Temby
A Review Of Literature On The Usage Of Low-Cost Sensors To Measure Particulate Matter, Amit U. Raysoni, Sai Deepak Pinakana, Esmeralda Mendez, Dawid K. Wladyka, Katarzyna Sepielak, Owen Temby
School of Earth, Environmental, and Marine Sciences Faculty Publications and Presentations
With advances in technological sciences, individuals can utilize low-cost air monitoring sensors to record air quality at homes, schools, and businesses. Air quality data collected from LCSs are publicly accessible, informing the community of the air quality around them. It is important to measure local and regional particulate matter (PM) concentrations to keep the public involved, especially those with specific health concerns, such as asthma, wheezing, and seasonal allergies. The number of studies involving the use of LCSs to evaluate PM levels is increasing with more manufacturers producing ‘easy to use’ LCSs targeting the public. The goal of this review …
The Concentration Of Heavy Metals In Lincoln Nebraska's Tap Water, Evan Neuhaus
The Concentration Of Heavy Metals In Lincoln Nebraska's Tap Water, Evan Neuhaus
Honors Theses
Heavy metals are commonplace in nature, and are typically found in scarce quantities in all drinking sources. However, in high enough concentrations, they can have a myriad of negative health effects. This study seeks to find the concentrations of such metals in the Lincoln water supply utilizing the resources of the Water Center at the University of Nebraska at Lincoln. To test for discrete concentrations of trace elements, a method of using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) was implemented. ICP-MS uses plasma to ionize and atomize a sample which is then filtered into a series of cones into a …
Ai Applications On Planetary Rovers, Alexis David Pascual
Ai Applications On Planetary Rovers, Alexis David Pascual
Electronic Thesis and Dissertation Repository
The rise in the number of robotic missions to space is paving the way for the use of artificial intelligence and machine learning in the autonomy and augmentation of rover operations. For one, more rovers mean more images, and more images mean more data bandwidth required for downlinking as well as more mental bandwidth for analyzing the images. On the other hand, light-weight, low-powered microrover platforms are being developed to accommodate the drive for planetary exploration. As a result of the mass and power constraints, these microrover platforms will not carry typical navigational instruments like a stereocamera or a laser …
The Rise And Risks Of Internet Of Things, Diamond E. Hicks
The Rise And Risks Of Internet Of Things, Diamond E. Hicks
Cybersecurity Undergraduate Research Showcase
Internet of Things (IoT) has become a necessary part of our everyday lives. IoT is the network in which many different devices communicate, connect, and share data. Though how IoT got to where it is today, the issues it faced, and how it affects our lives today is not common knowledge. Despite the fact that IoT has advanced our technology to what it is today, people do not completely understand what it does.
Drought Affects Sex Ratio And Growth Of Painted Turtles In A Long-Term Study In Nebraska, Larkin A. Powell, Ellen P. Dolph, Charrissa R. Neil
Drought Affects Sex Ratio And Growth Of Painted Turtles In A Long-Term Study In Nebraska, Larkin A. Powell, Ellen P. Dolph, Charrissa R. Neil
School of Natural Resources: Faculty Publications
Climate forecasts suggest the Great Plains of North America have increased risk of droughts during global warming. Environmental factors have potential to influence turtle populations in aquatic habitats through temperature-dependent sex determination and influences on food availability. Long-term studies are critical to evaluate the influence of climatic variation on turtles. We used a 12-year set of mark-recapture data collected from painted turtles (Chrysemys picta, n = 162) in a pond in Keith County, Nebraska during 2005–2016 to assess variation in sex ratio and growth dynamics. Southwest Nebraska experienced two periods of drought during our study (Palmer Hydrologic Drought …
New Surficial Geologic Mapping In Kentucky (2021-2022), Matthew Massey, Antonia Bottoms, Max Hammond Iii, Ann Hislop, Meredith Swallom, Michele M. Mchugh
New Surficial Geologic Mapping In Kentucky (2021-2022), Matthew Massey, Antonia Bottoms, Max Hammond Iii, Ann Hislop, Meredith Swallom, Michele M. Mchugh
Research Data--KGS
New surficial geologic mapping was performed in nine new 7.5-minute quadrangles in Hardin, Meade, Breckinridge, Grayson, Hart, and Larue Counties, Kentucky.
Quadrangles include Big Clifty, Big Spring (Hardin county only), Custer (Hardin County only), Flaherty, Madrid (Hardin county only), Millerstown, Summit, Tonieville (Hardin county only), and Upton.
Mapping data for each of the nine quadrangles is captured in a ZIP file that contains an ESRI geodatabase and associated FGDC-compliant metadata files (.xml).
The geodatabase is a relational geodatabase of spatial and non-spatial data that conforms to "GeMS (Geologic Map Schema)--a standard format for digital publication of geologic maps", available at …
The Influence Of Complex Coastlines On The Sea Breeze And Convection Initiation In Coastal North Carolina, Logan Howard, Adam L. Houston
The Influence Of Complex Coastlines On The Sea Breeze And Convection Initiation In Coastal North Carolina, Logan Howard, Adam L. Houston
Honors Theses
The sea breeze is a common phenomenon in coastal regions around the world. Their development and propagation can be treated as a density current. It is well known that many factors influence density current propagation, including wind. Depending on the orientation, the wind speed and shear can enhance or inhibit the development of the sea breeze. In places like eastern North Carolina, complex coastal geography can create river and sound breezes that, upon collision, have the potential to initiate thunderstorms. Using Cloud Model 1, simulations were conducted to model the behavior of the sea breezes in eastern North Carolina and …
Cross Sections Of The 83rb (P,Γ)84sr And 84kr(P,Γ)85rb Reactions At Energies Characteristic Of The Astrophysical Γ Process, M. Williams, B. Davids, G. Lotay, N. Nishimura, T. Rauscher, S. A. Gillespie, M. Alcorta, Alan M. Amthor, G. C. Ball, S. S. Bhattacharjee, V. Bildstein, W. N. Catford, D. T. Doherty, N. E. Esker, A. B. Garnsworthy, G. Hackman, K. Hudson, A. Lennarz, C. Natzke, B. Olaizola, A. Psaltis, C. E. Svensson, J. Williams, D. Walter, D. Yates
Cross Sections Of The 83rb (P,Γ)84sr And 84kr(P,Γ)85rb Reactions At Energies Characteristic Of The Astrophysical Γ Process, M. Williams, B. Davids, G. Lotay, N. Nishimura, T. Rauscher, S. A. Gillespie, M. Alcorta, Alan M. Amthor, G. C. Ball, S. S. Bhattacharjee, V. Bildstein, W. N. Catford, D. T. Doherty, N. E. Esker, A. B. Garnsworthy, G. Hackman, K. Hudson, A. Lennarz, C. Natzke, B. Olaizola, A. Psaltis, C. E. Svensson, J. Williams, D. Walter, D. Yates
Faculty Journal Articles
We have measured the cross section of the 83 Rb ( p , γ ) 84 Sr radiative capture reaction in inverse kinematics using a radioactive beam of 83 Rb at incident energies of 2.4 and 2.7 A MeV. Prior to the radioactive beam measurement, the 84 Kr ( p , γ ) 85 Rb radiative capture reaction was measured in inverse kinematics using a stable beam of 84 Kr at an incident energy of 2.7 A MeV. The effective relative kinetic energies of these measurements lie within the relevant energy window for the γ process in supernovae. The central …
Analysis Of Energy Transfer Among Background Flow, Gravity Waves And Turbulence In The Mesopause Region In The Process Of Gravity Wave Breaking From A High-Resolution Atmospheric Model, Alan Z. Liu, Fan Yang, Christopher James Heale, Jonathan Brian Snively, Wenjun Dong, Thomas Lund
Analysis Of Energy Transfer Among Background Flow, Gravity Waves And Turbulence In The Mesopause Region In The Process Of Gravity Wave Breaking From A High-Resolution Atmospheric Model, Alan Z. Liu, Fan Yang, Christopher James Heale, Jonathan Brian Snively, Wenjun Dong, Thomas Lund
Publications
We conducted an analysis of the process of GW breaking from an energy perspective using the output from a high-resolution compressible atmospheric model. The investigation focused on the energy conversion and transfer that occur during the GW breaking. The total change in kinetic energy and the amount of energy converted to internal energy and potential energy within a selected region were calculated.
Prior to GW breaking, part of the potential energy is converted into kinetic energy, most of which is transported out of the chosen region. After the GW breaks and turbulence develops, part of the potential energy is converted …
Analysis Of Energy Transfer Among Background Flow, Gravity Waves And Turbulence In The Mesopause Region In The Process Of Gravity Wave Breaking From A High-Resolution Atmospheric Model, Fan Yang, Alan Z. Liu, Christopher J. Heale, Jonathan B. Snively, Wenjun Dong, Thomas Lund
Analysis Of Energy Transfer Among Background Flow, Gravity Waves And Turbulence In The Mesopause Region In The Process Of Gravity Wave Breaking From A High-Resolution Atmospheric Model, Fan Yang, Alan Z. Liu, Christopher J. Heale, Jonathan B. Snively, Wenjun Dong, Thomas Lund
Publications
We conducted an analysis of the process of GW breaking from an energy perspective using the output from a high-resolution compressible atmospheric model. The investigation focused on the energy conversion and transfer that occur during the GW breaking. The total change in kinetic energy and the amount of energy converted to internal energy and potential energy within a selected region were calculated. Prior to GW breaking, part of the potential energy is converted into kinetic energy, most of which is transported out of the chosen region. After the GW breaks and turbulence develops, part of the potential energy is converted …
Diazirines And Oxaziridines As Nitrogen Transfer Reagents In Drug Discovery, Khalilia C. Tillett
Diazirines And Oxaziridines As Nitrogen Transfer Reagents In Drug Discovery, Khalilia C. Tillett
USF Tampa Graduate Theses and Dissertations
Synthetic organic chemistry has long served as a driver of innovation in the drug discovery and development process. Given the prevalence of the nitrogen atom in small molecule drugs, improved methods for C–N bond installation are in high demand. Heteroatom transfer reagents such as oxaziridines and diazirines can be used to selectively deliver nitrogen atom(s) to organic compounds. Herein, I’ll describe my work utilizing Armstrong’s oxaziridine (TBDOT) in peptide backbone modification, and diazirines (TPD) in the development of a hydroamination reaction.
Peptide backbone N-amination has emerged as an attractive peptidomimetic strategy in the design of amyloid aggregation inhibitors. In addition …
Tools For Quantifying Bacterial Motility Using Digital Holographic Microscopy As Applied To Studying The Simulated Microgravity Environment, Jacqueline Marie Acres
Tools For Quantifying Bacterial Motility Using Digital Holographic Microscopy As Applied To Studying The Simulated Microgravity Environment, Jacqueline Marie Acres
Dissertations and Theses
Digital holographic microcopy (DHM) is a label-free technique that has gained attention in recent years as a tool for volumetric imaging. One application of DHM is for the study of microbial motility with the advantage being that organisms may freely move within their environment. Images created from DHM are in the form of holograms. Holograms are time recordings showing XY information with the Z information contained within. Z information can be retrieved from the holograms directly through a variety of numerical techniques or through reconstruction. Datasets generated from DHM are large and processing remains a challenging task. Here, we show …
Chatgpt As Metamorphosis Designer For The Future Of Artificial Intelligence (Ai): A Conceptual Investigation, Amarjit Kumar Singh (Library Assistant), Dr. Pankaj Mathur (Deputy Librarian)
Chatgpt As Metamorphosis Designer For The Future Of Artificial Intelligence (Ai): A Conceptual Investigation, Amarjit Kumar Singh (Library Assistant), Dr. Pankaj Mathur (Deputy Librarian)
Library Philosophy and Practice (e-journal)
Abstract
Purpose: The purpose of this research paper is to explore ChatGPT’s potential as an innovative designer tool for the future development of artificial intelligence. Specifically, this conceptual investigation aims to analyze ChatGPT’s capabilities as a tool for designing and developing near about human intelligent systems for futuristic used and developed in the field of Artificial Intelligence (AI). Also with the helps of this paper, researchers are analyzed the strengths and weaknesses of ChatGPT as a tool, and identify possible areas for improvement in its development and implementation. This investigation focused on the various features and functions of ChatGPT that …
Dynamic Characteristics Of Aerosol Optical Properties Over Dibrugarh City In The North-Eastern Indian Region During 2018–2021, Akshansa Chauhan, Shukla Acharjee, Ramesh P. Singh, Brent N. Holben
Dynamic Characteristics Of Aerosol Optical Properties Over Dibrugarh City In The North-Eastern Indian Region During 2018–2021, Akshansa Chauhan, Shukla Acharjee, Ramesh P. Singh, Brent N. Holben
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Aerosols play an important role in the earth's environment across the globe through their involvement in various earth system cycles. The change in the aerosol properties may cause short and long-term impacts, the knowledge of such changes is useful in the estimation of the pollution sources of any region. We have carried out the analysis of the aerosols' optical and radiative properties using AERONET station data from 2018 to 2021 in Dibrugarh City. The higher Aerosol Optical Depth (AOD) values during winter and pre-monsoon months indicate high anthropogenic activities, and biomass burning in Dibrugarh. The impact of various sources and …
Conversations With Chatgpt About C Programming: An Ongoing Study, James C. Davis, Yung-Hsiang Lu, George K. Thiruvathukal
Conversations With Chatgpt About C Programming: An Ongoing Study, James C. Davis, Yung-Hsiang Lu, George K. Thiruvathukal
Computer Science: Faculty Publications and Other Works
AI (Artificial Intelligence) Generative Models have attracted great attention in recent years. Generative models can be used to create new articles, visual arts, music composition, even computer programs from English specifications. Among all generative models, ChatGPT is becoming one of the most well-known since its public announcement in November 2022. GPT means {\it Generative Pre-trained Transformer}. ChatGPT is an online program that can interact with human users in text formats and is able to answer questions in many topics, including computer programming. Many computer programmers, including students and professionals, are considering the use of ChatGPT as an aid. The quality …
Discriminating Stay-Green Grasses Using Hyperspectral Imaging And Chemometrics, J. Taylor, B. Moore, J. J. Rowland, H. Thomas, H. J. Ougham
Discriminating Stay-Green Grasses Using Hyperspectral Imaging And Chemometrics, J. Taylor, B. Moore, J. J. Rowland, H. Thomas, H. J. Ougham
IGC Proceedings (1993-2023)
Screening of plant collections for traits can be expensive, in terms of the number of plants to be screened, the duration of the plant lifecycle and the required observations. This study describes the application of a non-invasive method, hyperspectral imaging, combined with multivariate analysis, to distinguish between homozygous wild-type (YY) Lolium multiflorum and Lolium multiflorum F2 back cross plants heterozygous for y, a recessive Festuca pratensis stay-green gene (Thomas et al., 1997).
Non-Destructive Assessment Of Quality And Yield For Grass-Breeding, A. G. T. Schut, M. J. J. Pustjens, P. W. Wilkins, J. Meuleman, P. Reyns, A. Lovatt, G. W. A. M. Van Der Heijden
Non-Destructive Assessment Of Quality And Yield For Grass-Breeding, A. G. T. Schut, M. J. J. Pustjens, P. W. Wilkins, J. Meuleman, P. Reyns, A. Lovatt, G. W. A. M. Van Der Heijden
IGC Proceedings (1993-2023)
Selection of cultivars has, until now, been based mainly on dry matter (DM) yields because of the high costs of sampling and chemical analysis. Imaging spectroscopy could reduce costs by limiting sampling and harvesting of individual plots to reference samples (Schut et al., accepted). In this study, the prediction accuracy of DM yields and chemical composition with imaging spectroscopy is evaluated for cultivar selection purposes.
Root Senescence In Red Clover (Trifolium Pratense L.), K. J. Webb, E. Tuck, S. Heywood
Root Senescence In Red Clover (Trifolium Pratense L.), K. J. Webb, E. Tuck, S. Heywood
IGC Proceedings (1993-2023)
Legume root systems form a mosaic of living, ageing and dead roots and nodules. The balance between these stages alters during plant development. Stressful events (drought, temperature change, reduced carbon supply, etc.) disturb the balance (Butler et al., 1959). Effects of root and nodule death on soil structure, composition and leaching and on plant persistency are understood poorly. Plants with differing senescence patterns are useful tools to study these effects. Molecular studies of root senescence need detailed knowledge of the process and timing of root senescence and death. Biochemical and histochemical markers of senescence were used to generate preliminary …
Construction Of Microsatellite-Enriched Libraries For Tropical Forage Species And Characterization Of The Repetitive Sequences Found In Brachiaria Brizantha, Letícia Jungmann, C. B. Do Valle, P. R. Laborda, Rosangela M. S. Resende, Liana Jank, A. P. De Souza
Construction Of Microsatellite-Enriched Libraries For Tropical Forage Species And Characterization Of The Repetitive Sequences Found In Brachiaria Brizantha, Letícia Jungmann, C. B. Do Valle, P. R. Laborda, Rosangela M. S. Resende, Liana Jank, A. P. De Souza
IGC Proceedings (1993-2023)
The Brazilian cattle herd comprises 185 million animals fed with about 177 million hectares of native and cultivated pastures (IBGE, 2002). Of the grass species used for forage in Brazil, the African genus Brachiaria is the most widely planted, followed by Panicum, which also has an African origin. Legumes of the Stylosanthes genus, native to the South America, have emerged in the last few years as potential forage species for use with the grasses. These forage species have been bred at Embrapa Beef Cattle and the breeding programs have shown the need for more genetic information including the use …
Development Of Simple Sequence Repeat (Ssr) Markers And Their Use To Assess Genetic Diversity In Apomictic Guineagrass (Panicum Maximum Jacq.), M. Ebina, Kaori Kouki, S. Tsuruta, M. Takahara, M. Kobayashi, T. Yamamoto, K. Nakajima, H. Nakagawa
Development Of Simple Sequence Repeat (Ssr) Markers And Their Use To Assess Genetic Diversity In Apomictic Guineagrass (Panicum Maximum Jacq.), M. Ebina, Kaori Kouki, S. Tsuruta, M. Takahara, M. Kobayashi, T. Yamamoto, K. Nakajima, H. Nakagawa
IGC Proceedings (1993-2023)
Guineagrass is an important and widely grown tropical forage grass. Despite its importance and increasing popularity, only little is known about its genetic diversity (Ebina et al., 2001). Such information is useful for the selection of diverse parents in breeding programmes. Moreover, no simple sequence repeat (SSR) markers have been reported in any apomixis species. In this study SSR markers were developed and used to investigate genetic diversity in germplasm of apomictic guineagrass.