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Articles 1 - 30 of 42
Full-Text Articles in Agriculture
Land Systems Of The Kimberley Region, Western Australia, A L. Payne, N Schoknecht
Land Systems Of The Kimberley Region, Western Australia, A L. Payne, N Schoknecht
Technical Bulletins
The Land Systems of the Kimberley Region Report describes and maps the landscapes, soils and vegetation of the Kimberley region. This report is a consolidation of surveys carried out by different organisations, across different areas of the Kimberley, since the 1940s. The Kimberley region, as defined in this bulletin, covers 330 070km². The report categorises the Kimberley region into 111 land systems. Under each land system, the report identifies the vulnerabilities of those areas, and provides recommendations on how to achieve sustainable use. The report also publishes pasture types for the entire region and the grazing potential for each pasture, …
Bacterial Interactions Of Inoculated Price's Potato Bean (Apios Priceana): A Biological Study, Rhonda Walker
Bacterial Interactions Of Inoculated Price's Potato Bean (Apios Priceana): A Biological Study, Rhonda Walker
Masters Theses & Specialist Projects
Apios priceana is a native endangered species plant found in the Southeast United States. It is characterized as a leguminous species that bears wisteria like clusters with pea like flowers, a large tuberous root and four to six inch long seed pods. It is believed the Native Americans and early European settlers relied on this species as a source of protein and utilized the seeds for cultivation of the tuberous “potato” which formed. Apios priceana contains an average of 13% fiber, 6.9% protein, 71% carbohydrate and 9 of the 11 essential amino acids needed in human diets (Walter et al.,1986). …
W285 Cotton Variety Guide 2011, Chris L. Main, Fred Allen
W285 Cotton Variety Guide 2011, Chris L. Main, Fred Allen
Field & Commercial Crops
Version 2.0
Heritable Epigenetic Variation Among Maize Inbreds, Steve R. Eichten, Ruth A. Swanson, James C. Schnable, Amanda J. Waters, Peter J. Hermanson, Sanzhen Liu, Cheng-Ting Yeh, Yi Jia, Karla Gendler, Michael Freeling, Patrick S. Schnable, Matthew W. Vaughn, Nathan M. Springer
Heritable Epigenetic Variation Among Maize Inbreds, Steve R. Eichten, Ruth A. Swanson, James C. Schnable, Amanda J. Waters, Peter J. Hermanson, Sanzhen Liu, Cheng-Ting Yeh, Yi Jia, Karla Gendler, Michael Freeling, Patrick S. Schnable, Matthew W. Vaughn, Nathan M. Springer
Department of Agronomy and Horticulture: Faculty Publications
Epigenetic variation describes heritable differences that are not attributable to changes in DNA sequence. There is the potential for pure epigenetic variation that occurs in the absence of any genetic change or for more complex situations that involve both genetic and epigenetic differences. Methylation of cytosine residues provides one mechanism for the inheritance of epigenetic information. A genome-wide profiling of DNA methylation in two different genotypes of Zea mays (ssp. mays), an organism with a complex genome of interspersed genes and repetitive elements, allowed the identification and characterization of examples of natural epigenetic variation. The distribution of DNA methylation …
Sp503-I Insects: Identifying The Flatheaded Appletree Borer And Other Buprestid Beetle Species In Tennessee, Jason A. Hansen, Frank A. Hale, William E. Klingeman
Sp503-I Insects: Identifying The Flatheaded Appletree Borer And Other Buprestid Beetle Species In Tennessee, Jason A. Hansen, Frank A. Hale, William E. Klingeman
Commercial Horticulture
Version 2.0
W283 Should Tennessee Tobacco Growers Invest In Irrigation, Fertigation Or Plastic Mulch?, Brian G. Leib, Eric F. Caldwell, Hubert J. Savoy, John R. Buchanan
W283 Should Tennessee Tobacco Growers Invest In Irrigation, Fertigation Or Plastic Mulch?, Brian G. Leib, Eric F. Caldwell, Hubert J. Savoy, John R. Buchanan
Field & Commercial Crops
Version 2.0
W205 Controlling Winter Annual Broadleaf Weeds, James T. Brosnan, Greg Breeden
W205 Controlling Winter Annual Broadleaf Weeds, James T. Brosnan, Greg Breeden
Commercial Horticulture
Version 3.0
Miscanthus 3 Giganteus Productivity: The Effects Of Management In Different Environments, Matt Maughan, German Bollero, D.K. Lee, Robert Darmody, Stacy Bonos, Laura Cortese, James Murphy, Roch E. Gaussoin, Matthew Sousek, David Williams, Linda Williams, Fernando Miguez, Thomas Voigt
Miscanthus 3 Giganteus Productivity: The Effects Of Management In Different Environments, Matt Maughan, German Bollero, D.K. Lee, Robert Darmody, Stacy Bonos, Laura Cortese, James Murphy, Roch E. Gaussoin, Matthew Sousek, David Williams, Linda Williams, Fernando Miguez, Thomas Voigt
Department of Agronomy and Horticulture: Faculty Publications
Miscanthus 9 giganteus is a C4 perennial grass that shows great potential as a high-yielding biomass crop. Scant research has been published that reports M. 9 giganteus growth and biomass yields in different environments in the United States. This study investigated the establishment success, plant growth, and dry biomass yield of M. 9 giganteus during its first three seasons at four locations (Urbana, IL; Lexington, KY; Mead, NE; Adelphia, NJ) in the United States. Three nitrogen rates (0, 60, and 120 kg ha -1) were applied at each location each year. Good survival of M. 9 giganteus during its first …
Res Rep 12-01 Wheat And Oat Variety Performance Tests In Tennessee 2011, Fred L. Allen, Richard D. Johnson, Robert C. Williams Jr., Virginia Sykes, Chris Main
Res Rep 12-01 Wheat And Oat Variety Performance Tests In Tennessee 2011, Fred L. Allen, Richard D. Johnson, Robert C. Williams Jr., Virginia Sykes, Chris Main
Field & Commercial Crops
Version 2.0
Gata-Family Transcription Factors In Magnaporthe Oryzae, Cristian F. Quispe
Gata-Family Transcription Factors In Magnaporthe Oryzae, Cristian F. Quispe
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
The filamentous fungus, Magnaporthe oryzae, responsible for blast rice disease, destroys around 10-30% of the rice crop annually. Infection begins when the specialized infection structure, the appressorium, generates enormous internal turgor pressure through the accumulation of glycerol. This turgor acts on a penetration peg emerging at the base of the cell, causing it to breach the leaf surface allowing its infection.
The enzyme trehalose-6- phosphate synthase (Tps1) is a central regulator of the transition from appressorium development to infectious hyphal growth. In the first chapter we show that initiation of rice blast disease requires a regulatory mechanism involving an …
Herbicide-Resistant Risk Assessment: Response Of Common Nebraska Weeds To Dicamba Dose, Roberto J. Crespo
Herbicide-Resistant Risk Assessment: Response Of Common Nebraska Weeds To Dicamba Dose, Roberto J. Crespo
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
Dicamba-resistant soybeans are being developed to provide an additional herbicide mechanism of action that can be used in soybean, and to provide a tool to help manage or mitigate the evolution of other herbicide-resistant weed populations. The objectives of this thesis were to assess the risk of common Nebraska weeds developing resistance to dicamba, quantify baseline dose-response to dicamba of high-risk weed species, and survey the variability in dicamba dose-response among populations of those species. Twenty-five weed scientists were asked to estimate the risk likelihood of ten weed species evolving resistance to dicamba following the commercialization of dicamba-resistant soybean. Palmer …
W273 Black Rot Of Crucifers, Steve Bost
W273 Black Rot Of Crucifers, Steve Bost
Insects, Pests, Plant Diseases and Weeds
Plant Diseases series
Version 1.0
W274 Black Root Rot Of Tobacco, Steve Bost, Darrell Hensley
W274 Black Root Rot Of Tobacco, Steve Bost, Darrell Hensley
Insects, Pests, Plant Diseases and Weeds
Version 2.0
W275 Sooty Blotch And Flyspeck Of Apple, Steve Bost
W275 Sooty Blotch And Flyspeck Of Apple, Steve Bost
Insects, Pests, Plant Diseases and Weeds
Plant Diseases series
Version 1.0
W272 Irish Potato Scab, Steve Bost
W272 Irish Potato Scab, Steve Bost
Insects, Pests, Plant Diseases and Weeds
Plant Diseases series
Version 2.0
Economic Impacts Of Drought On Kentucky Corn, Hay, And Soybeans, Kortney E. Craft
Economic Impacts Of Drought On Kentucky Corn, Hay, And Soybeans, Kortney E. Craft
Masters Theses & Specialist Projects
Understanding climatic impacts is important if we are to comprehend the relationship between climate and society. Weather phenomena can have environmental, economical, and social impacts. Drought is the natural hazard that affects people the most. It is also the most complex and least understood. There is no one universally accepted definition for drought which makes its examination difficult. Droughts’ duration is also difficult to determine because it has no clearly defined onset and end. Also, drought varies both geographically and temporally making uniform drought monitoring difficult. Since drought is difficult to monitor and access, drought impacts are often poorly documented. …
Screening Synteny Blocks In Pairwise Genome Comparisons Through Integer Programming, Haibao Tang, Eric Lyons, Brent S. Pedersen, James C. Schnable, Andrew H. Paterson, Michael Freeling
Screening Synteny Blocks In Pairwise Genome Comparisons Through Integer Programming, Haibao Tang, Eric Lyons, Brent S. Pedersen, James C. Schnable, Andrew H. Paterson, Michael Freeling
Department of Agronomy and Horticulture: Faculty Publications
Background:
It is difficult to accurately interpret chromosomal correspondences such as true orthology and paralogy due to significant divergence of genomes from a common ancestor. Analyses are particularly problematic among lineages that have repeatedly experienced whole genome duplication (WGD) events. To compare multiple “subgenomes” derived from genome duplications, we need to relax the traditional requirements of “one-to-one” syntenic matchings of genomic regions in order to reflect “one-to-many” or more generally “many-to-many” matchings. However this relaxation may result in the identification of synteny blocks that are derived from ancient shared WGDs that are not of interest. For many downstream analyses, we …
A First Insight Into Population Structure And Linkage Disequilibrium In The U.S. Peanut Minicore Collection, Vikas Belamkar, Michael Gomez Selvaraj, Jamie L. Ayers, Paxton R. Payton, Naveen Puppala, Mark D. Burow
A First Insight Into Population Structure And Linkage Disequilibrium In The U.S. Peanut Minicore Collection, Vikas Belamkar, Michael Gomez Selvaraj, Jamie L. Ayers, Paxton R. Payton, Naveen Puppala, Mark D. Burow
Department of Agronomy and Horticulture: Faculty Publications
Knowledge of genetic diversity, population structure, and degree of linkage disequilibrium (LD) in target association mapping populations is of great importance and is a prerequisite for LD-based mapping. In the present study, 96 genotypes comprising 92 accessions of the US peanut minicore collection, a component line of the tetraploid variety Florunner, diploid progenitors A. duranensis (AA) and A. ipaënsis (BB), and synthetic amphidiploid accession TxAG-6 were investigated with 392 simple sequence repeat (SSR) marker bands amplified using 32 highly-polymorphic SSR primer pairs. Both distance- and model-based (Bayesian) cluster analysis revealed the presence of structured diversity. In general, the wild-species accessions …
Genes Identified By Visible Mutant Phenotypes Show Increased Bias Toward One Of Two Subgenomes Of Maize, James C. Schnable, Michael Freeling
Genes Identified By Visible Mutant Phenotypes Show Increased Bias Toward One Of Two Subgenomes Of Maize, James C. Schnable, Michael Freeling
Department of Agronomy and Horticulture: Faculty Publications
Not all genes are created equal. Despite being supported by sequence conservation and expression data, knockout homozygotes of many genes show no visible effects, at least under laboratory conditions. We have identified a set of maize (Zea mays L.) genes which have been the subject of a disproportionate share of publications recorded at MaizeGDB. We manually anchored these ‘‘classical’’ maize genes to gene models in the B73 reference genome, and identified syntenic orthologs in other grass genomes. In addition to proofing the most recent version 2 maize gene models, we show that a subset of these genes, those that …
Dose–Sensitivity, Conserved Non-Coding Sequences, And Duplicate Gene Retention Through Multiple Tetraploidies In The Grasses, James C. Schnable, Brent S. Pedersen, Sabarinath Subramaniam, Michael Freeling
Dose–Sensitivity, Conserved Non-Coding Sequences, And Duplicate Gene Retention Through Multiple Tetraploidies In The Grasses, James C. Schnable, Brent S. Pedersen, Sabarinath Subramaniam, Michael Freeling
Department of Agronomy and Horticulture: Faculty Publications
Whole genome duplications, or tetraploidies, are an important source of increased gene content. Following whole genome duplication, duplicate copies of many genes are lost from the genome. This loss of genes is biased both in the classes of genes deleted and the subgenome from which they are lost. Many or all classes are genes preferentially retained as duplicate copies are engaged in dose sensitive protein–protein interactions, such that deletion of any one duplicate upsets the status quo of subunit concentrations, and presumably lowers fitness as a result. Transcription factors are also preferentially retained following every whole genome duplications studied. This …
W265 Pasture Herbicide Stewardship, G. Neil Rhodes, Jr., William P. Phillips, Jr.
W265 Pasture Herbicide Stewardship, G. Neil Rhodes, Jr., William P. Phillips, Jr.
Field & Commercial Crops
Pasture Weed factsheet
Version 2.0
W264 Horsenettle, G. Neil Rhodes, Jr., William P. Phillips, Jr.
W264 Horsenettle, G. Neil Rhodes, Jr., William P. Phillips, Jr.
Field & Commercial Crops
Pasture Weed Factsheet
Version 1.0
Proceedings Of The 38th Annual Meeting, Southern Soybean Disease Workers (March 9-10, 2011, Pensacola Beach, Florida), Boyd Padgett, Tom Allen, Jason Bond, Cliff Coker, Stephen R. Koenning
Proceedings Of The 38th Annual Meeting, Southern Soybean Disease Workers (March 9-10, 2011, Pensacola Beach, Florida), Boyd Padgett, Tom Allen, Jason Bond, Cliff Coker, Stephen R. Koenning
Southern Soybean Disease Workers: Conference Proceedings
Contents
Southern United States Soybean Disease Loss Estimates for 2010. Compiled by SR Koenning
Poster presentation
Soybean Varieties and Breeding Lines Shown With Resistance to Reniform Nematode in Greenhouse Tests, 1998-2010 R. T. Robbins, and L. E. Jackson
Oral presentations
Frogeye Leaf Spot (Cercorosa sojina) symposium (Boyd Padgett, moderator)
Development of Baseline Cercospora sojina Sensitivity Levels to Quinone Outside Inhibitor Fungicides and Monitoring for Resistance. GR Zhang and CA Bradley
Soybean Pathogen Found to be Resistant to Fungicides MA Newman and CA Bradley
Strobilurin-resistant Cercospora sojina in Kentucky: Field History. D Hershman
Graduate student paper competition (Tom Allen, …
Sp290-D Insects: Twospotted Spider Mites, Frank A. Hale
Sp290-D Insects: Twospotted Spider Mites, Frank A. Hale
Insects, Pests, Plant Diseases and Weeds
Version 2.0
Sp290-R Insects: Whiteflies On Ornamentals, Frank A. Hale
Sp290-R Insects: Whiteflies On Ornamentals, Frank A. Hale
Insects, Pests, Plant Diseases and Weeds
Version 2.0
Sp290-M Insects: Maple Petiole Borer, Frank A. Hale
Sp290-M Insects: Maple Petiole Borer, Frank A. Hale
Insects, Pests, Plant Diseases and Weeds
Version 3.0
Sp290-S Insects: Mealybugs On Ornamentals, Frank A. Hale
Sp290-S Insects: Mealybugs On Ornamentals, Frank A. Hale
Insects, Pests, Plant Diseases and Weeds
Version 2.0
Pb1789 Weed Control Manual For Turf Managers In Tennessee, James T. Brosnan, Greg Breeden, Tom Samples
Pb1789 Weed Control Manual For Turf Managers In Tennessee, James T. Brosnan, Greg Breeden, Tom Samples
Commercial Horticulture
A manual to assist turf managers with developing effective weed management programs, including herbicide recommendations.
Version 6.0
Report Of Nine Sorghum Flour Workshops, Report For Intsormil; Subject: “Utilization Of Cti Grinders For Small Scale Sorghum Flour Production In Central America”, Intsormil
INTSORMIL Scientific Publications
In Nicaragua, Sorghum grain has been a crops using only for animal feed. Fortunately Scientifics have been researched about its nutritional sorghum grain properties and some of the country that they have been interested to bring the technology about sorghum flour has been Nicaragua because its growths in 3 big areas; in the north, south and west region. Now, that is knew their characteristics and others, so INTA and INTSORMIL are diffusing the technology about sorghum flour to increase the production of sorghum grain, reduce the cost production of bread and some ethnics drinks, to improve the food security and …
Switchgrass, Kenneth P. Vogel, Gautam Sarath, Aaron J. Saathoff, Robert B. Mitchell
Switchgrass, Kenneth P. Vogel, Gautam Sarath, Aaron J. Saathoff, Robert B. Mitchell
Department of Agronomy and Horticulture: Faculty Publications
17.1 Introduction
Switchgrass (Panicum virgatum L.) is a warm-season perennial grass that is native to North America that is being developed into a biomass energy crop. It has been used in pastures and for conservation purposes in the Great Plains and the Midwest, USA, for over 70 years.1 The research supporting its use as a pasture and conservation species was largely conducted by US Department of Agriculture (USDA) research programs, most notably the Agricultural Research Service (ARS) project located at the University of Nebraska-Lincoln and USDA Plant Materials Centers that are located throughout the United States. In this report, …