Exterranean [Table Of Contents], 2019 Fordham University
Exterranean [Table Of Contents], Phillip John Usher
“For anyone who might be suffering from Anthropocene fatigue, this is a book to jolt you from your slumbers. What happens to the globe when we shift attention from the outward projection of emissions to extraction ? The Earth we thought we knew, and were already mourning, takes on a stunning new critical light.”—Claire Colebrook, Pennsylvania State University
Exterranean concerns the extraction of stuff from the Earth, a process in which matter goes from being sub- to exterranean. By bringing a rich archive of nonmodern texts and images from across Europe, into conversation with the contemporary work of Bruno Latour ...
Stability Analysis Of Kernel Quality Traits In Exotic-Derived Doubled Haploid Maize Lines, 2019 Iowa State University
Stability Analysis Of Kernel Quality Traits In Exotic-Derived Doubled Haploid Maize Lines, Adam Vanous, Candice Gardner, Michael Blanco, Adam Martin-Schwarze, Jinyu Wang, Xianran Li, Alexander E. Lipka, Sherry Flint-Garcia, Martin Bohn, Jode Edwards, Thomas Lubberstedt
Variation in kernel composition across maize (Zea mays L.) germplasm is affected by a combination of the plant’s genotype, the environment in which it is grown, and the interaction between these two elements. Adapting exotic germplasm to the US Corn Belt is highly dependent on the plant’s genotype, the environment where it is grown, and the interaction between these components. Phenotypic plasticity is ill-defined when specific exotic germplasm is moved over large latitudinal distances and for the adapted variants being created. Reduced plasticity (or stability) is desired for the adapted variants, as it allows for a more rapid ...
Planting Date, Hybrid Maturity, And Weather Effects On Maize Yield And Crop Stage, 2019 Iowa State University
Planting Date, Hybrid Maturity, And Weather Effects On Maize Yield And Crop Stage, M. E. Baum, S. V. Archontoulis, M. A. Licht
Unfavorable weather conditions frequently cause farmers to plant maize (Zea mays L.) outside the optimum planting timeframe. We analyzed maize yield and phenology from a multilocation, year, hybrid relative maturity, and planting date experiment performed in Iowa, USA. Our objectives were to determine the optimum combination of planting date and relative maturity to maximize maize grain yield per environment and to elucidate the risk associated with the use of “full-season hybrids” when planting occurs beyond the optimum planting date. Analysis of variance (ANOVA) attributed 70% of the variability in grain yield to planting date and only 10% to relative maturity ...
Interactions Between Biochar And Compost In Organic Winter Wheat Production And Soil Quality Under Dryland Conditions, Phearen Kit Miller
All Graduate Theses and Dissertations
Organic wheat grown under dryland conditions encounters challenges such as limited nutrients and water. Maintaining organic wheat production requires solutions to these problems in order to retain economic sustainability for the farmers.
Research on biochar and compost have been conducted globally. Despite well known benefits of compost on soil and crop production, few organic farmers apply compost to their fields. Research on biochar is still new. Biochar is charcoal created from pyrolyzing agricultural material under conditions of low oxygen and high heat. Many studies claim that biochar is a valuable soil amendment for improving organic production and reducing environmental pollution ...
Forage News [2018-12], 2018 University of Kentucky
Forage News [2018-12], University Of Kentucky Department Of Plant And Soil Sciences
- Feeding Your 2018 Hay
- Kentucky Alfalfa and Stored Forages Conference Program Set
- Jan. 28 Equine Pasture Program
- Silage/Forage Sample Collection Method
- Heart of America Grazing Conference, Jan 22-23
Risks And Opportunities Of Gm Crops: Bt Maize Example, 2018 Iowa State University
Risks And Opportunities Of Gm Crops: Bt Maize Example, Andrea K. Carzoli, Siddique I. Aboobucker, Leah L. Sandall, Thomas T. Lubberstedt, Walter P. Suza
The anticipated world population growth emphasizes a need to produce more food on less land. Cutting-edge technologies, including genetic engineering, can help to develop improved crop varieties and protect natural resources. In spite of the potential for genetically-modified (GM) crops to make crop production more efficient, they remain a polarizing issue due to safety concerns. This paper provides an overview of the risk assessment process. The safety of Bacillus thuringiensis (Bt) proteins is used as an example for how risk assessment is applied to GM crops. Risks associated with GM crops have proven to be low to non-existent. Developing countries ...
Generation And Evaluation Of Modified Opaque-2 (O2) Popcorn Suggests A Route To Quality Protein Popcorn (Qpp), 2018 University of Nebraska-Lincoln
Generation And Evaluation Of Modified Opaque-2 (O2) Popcorn Suggests A Route To Quality Protein Popcorn (Qpp), Ying Ren
Theses, Dissertations, and Student Research in Agronomy and Horticulture
I have been working on a Quality Protein Popcorn breeding project where QPM conversion is carried out simultaneously for several elite popcorn germplasms. During my study in the graduate program, I led the following aspects of the Quality Protein Popcorn Breeding Project:
1. Identified suitable QPMs as opaque-2 allele donors.
2.Examined the feasibility of quick introgression of the opaque-2 allele into popcorn lines via marker-assisted selection.
3. Monitored modification by SDS-PAGE zein profiling and light box phenotypic selection to make sure multiple modifier loci for opaque-2 were incorporated each time generation advancement was carried out.
4. Carried out high ...
Understanding Spatial Dynamics Of Tallgrass Prairie Dominated By Tall Fescue, 2018 University of Nebraska - Lincoln
Understanding Spatial Dynamics Of Tallgrass Prairie Dominated By Tall Fescue, Callie Griffith
Theses, Dissertations, and Student Research in Agronomy and Horticulture
This study was conducted on restored tallgrass prairie and invaded tallgrass prairie located in the Grand River Grasslands of southern Iowa to determine differences in heterogeneity of plant structure and functional group composition at different scales. Restored tallgrass prairies were seeded with a species-rich seeding mixture and managed by burning the entire prairie, every three years. Data were collected in August 2014 and 2015 to compare heterogeneity of restoration of native plant structure and functional group composition to the heterogeneity of invaded tallgrass prairies that were managed with patch burning and conventionally grazed. Invaded tallgrass prairies were managed with patch-burning ...
Synthesis Of Dicamba Glucosides For The Study Of Environmental Dicamba Drift Effects On Soybeans, 2018 University of Arkansas, Fayetteville
Synthesis Of Dicamba Glucosides For The Study Of Environmental Dicamba Drift Effects On Soybeans, Holly Wallace
Theses and Dissertations
The most popular herbicide used for weed control has been glyphosate for many years in the Midwestern United States. Plants have begun to develop a resistance to glyphosate due to over use of the herbicide. This herbicide resistance has pushed farmers to turn to alternative herbicides such as dicamba and 2,4-D. Recently agrochemical companies have developed genetically modified crops that are resistant to herbicides such as dicamba. These modified crops allow farmers to spray their fields with dicamba without fear of crop damage. Farmers of non-genetically modified crops, however, suffer damage and loss of yield from herbicide drift effects ...
Systems To Attract And Feed Pollinators In Warm-Season Lawns, 2018 University of Arkansas, Fayetteville
Systems To Attract And Feed Pollinators In Warm-Season Lawns, Michelle Wisdom
Theses and Dissertations
Pollinating insects are responsible for the production of many agricultural crops and they require floral resources to fulfill their life-cycle. Ideally, pollinating insects will encounter a diversity of floral resources across their entire season of activity, and those floral resources can include both herbaceous and woody plant species. Managed turfgrass areas have been identified as potential locations for creating pollinator-friendly habitats. In the transition zone, where both warm- and cool-season turfgrass species are present, the persistence of herbaceous plants in warm-season turfgrasses such as bermudagrass (Cynodon spp.) and buffalograss (Buchloe dactyloides), may be affected not only by the competitive nature ...
Molecular Fossils From Phytoplankton Reveal Secular Pco2 Trend Over The Phanerozoic, 2018 Utrecht University
Molecular Fossils From Phytoplankton Reveal Secular Pco2 Trend Over The Phanerozoic, Caitlyn R. Witkowski, Johan W. H. Weijers, Brian S. Blais, Stefan Schouten, Jaap S. Sinninghe Damsté
Science and Technology Faculty Journal Articles
Past changes in the atmospheric concentration of carbon dioxide (PCO2) have had a major impact on earth system dynamics; yet, reconstructing secular trends of past PCO2 remains a prevalent challenge in paleoclimate studies. The current long-term PCO2reconstructions rely largely on the compilation of many different proxies, often with discrepancies among proxies, particularly for periods older than 100 million years (Ma). Here, we reconstructed Phanerozoic PCO2 from a single proxy: the stable carbon isotopic fractionation associated with photosynthesis (Ɛp) that increases as PCO2 increases. This concept has been widely applied to alkenones, but here, we expand ...
Insights Into The Evolution Of The New World Diploid Cottons (Gossypium, Subgenus Houzingenia) Based On Genome Sequencing, Corrinne E. Grover, Mark A. Arick Ii, Adam Thrash, Justin L. Conover, William S. Sanders, Daniel G. Peterson, James E. Frelichowski, Jodi A. Scheffler, Brian E. Scheffler, Jonathan F. Wendel
Ecology, Evolution and Organismal Biology Publications
We employed phylogenomic methods to study molecular evolutionary processes and phylogeny in the geographically widely dispersed New World diploid cottons (Gossypium, subg. Houzingenia). Whole genome resequencing data (average of 33X genomic coverage) were generated to reassess the phylogenetic history of the subgenus and provide a temporal framework for its diversification. Phylogenetic analyses indicate that the subgenus likely originated following trans-oceanic dispersal from Africa about 6.6 mya, but that nearly all of the biodiversity evolved following rapid diversification in the mid-Pleistocene (0.5-2.0 mya), with multiple long-distance dispersals required to account for range expansion to Arizona, the Galapagos Islands ...
The Art Of Botany: The Effect Of Drought On Plant Anatomy, 2018 University of Hawaiʻi at Mānoa
The Art Of Botany: The Effect Of Drought On Plant Anatomy, Amanda Wong
Plants are negatively affected by water deficiencies, and water stress is expected to increase due to more frequent and prolonged droughts from climate change. I investigated the effect of drought on the internal anatomy of the invasive Syzygium cumini plant. In the greenhouse, S. cumini plants were grown, such that half of the plants were watered daily, while the remaining number of plants did not receive any water for the entire experiment. After nine weeks, the base of the main stem was cut into thin disks, stained, and the center was viewed through a microscope for the pith cells that ...
Impact Of Aerobic Compost Tea On Growth Of Lactuca Sativa Within A Peat-Based Growing Media, 2018 Murray State University
Impact Of Aerobic Compost Tea On Growth Of Lactuca Sativa Within A Peat-Based Growing Media, Ella Potts, Jessica Stoner, Alyx Shultz, Iin Handayani
Compost and compost tea have been shown in practice to be valuable soil amendments across many horticultural applications; however, little rigorous quantitative work has been completed. Researchers designed a side-by-side trial with two replications to quantifiably study the impact of compost tea on the growth and vigor of soil-grown lettuce. A recycled poultry-litter-based aerobic compost tea was used for the treatment. Six lactuca sativa plants received each treatment or control. Researchers hypothesized the treatment plants would show more vigor and vegetative growth than control. The null hypothesis was treatment plants would be identical to control lettuce. Researchers failed to reject ...
Lingnan Gardeners Newsletter (No. 40) = 嶺南彩園通訊 (第40期), 2018 Lingnan University
Lingnan Gardeners Newsletter (No. 40) = 嶺南彩園通訊 (第40期), Lingnan Gardeners, Kwan Fong Cultural Research And Development Programme, Lingnan University
Lingnan Gardeners Newsletter 嶺南彩園通訊
A Perplexing Process: Understanding How Agricultural Producers Process Best Management Practice Information, 2018 Oklahoma State University
A Perplexing Process: Understanding How Agricultural Producers Process Best Management Practice Information, Audrey E. H. King, Lauri M. Baker
Journal of Applied Communications
Best management practices (BMPs) are suggested practices that help agricultural producers optimize production while reducing pollution, soil erosion, and other environmental impacts. Many audiences, including scientists and policy makers, have expressed disappointment at the current level of BMP use. Elaboration likelihood model (ELM) is used to understand how people process messages. ELM states that people can process messages either centrally or peripherally. This study sought to understand how producers processed information related to BMP adoption in grazing systems. Researchers conducted qualitative, in-depth interviews with 42 beef-cattle producers in Kansas and Oklahoma. It was found producers process information both centrally and ...
28 - Terminal Die-Back, The Result Of A New Neofusicoccum Species, 2018 University of Georgia
28 - Terminal Die-Back, The Result Of A New Neofusicoccum Species, Courtney Cameron
Georgia Undergraduate Research Conference (GURC)
Neofusicoccum, a member of the Botryosphaeriaceae family, is a fungal pathogen of woody hosts. It is a threat to pecans (Carya illinoinensis) throughout the South as it damages the above ground parts of plants. Terminal die-back is the most common symptom, resulting in dying or browning of terminal leaflets, and eventually entire compound leaves, scattered throughout a tree. The pathogen often remains dormant until the host's immune response is suppressed by environmental factors such as drought. Some orchards in Georgia have begun displaying terminal die-back. The causal fungus has been identified as a member of the genus Neofusicoccum, but ...
Genotypic Variation In Anthocyanins, Phenolic Compounds, And Antioxidant Activity In Cob And Husk Of Purple Field Corn, Ponsawan Khamphasan, Khomsorn Lomthaisong, Bhornchai Harakotr, Danupol Ketthaisong, Marvin Paul Scott, Kamol Lertrat, Bhalang Suriharn
Information on phytochemicals in the cob and husk of field corn is important for the use of corn waste in the production of value-added corn products. The objectives of this study were to evaluate the variation in monomeric anthocyanin content (MAC), total phenolic content (TPC), and antioxidant activity, as determined by 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity and Trolox equivalent antioxidant capacity (TEAC) in 53 purple field corn genotypes, and to study the correlations of these traits with color parameters. Fifty-three corn genotypes were planted in a randomized complete block design with three replications in two locations in the ...
Microbial Community Structure And Functions Differ Between Native And Novel (Exotic-Dominated) Grassland Ecosystems In An 8-Year Experiment, Aleksandra Checinska Sielaff, Racheal N. Upton, Kirsten S. Hofmockel, Xia Xu, H. Wayne Polley, Brian J. Wilsey
Ecology, Evolution and Organismal Biology Publications
A Grasslands dominated by non-native (exotic) spe- cies have replaced purely native-dominated areas in many parts of the world forming ‘novel’ ecosystems. Altered precipitation patterns are predicted to exacerbate this trend. It is still poorly understood how soil microbial communities and their functions differ between high diversity native- and low diversity exotic-dominated sites and how altered precipitation will impact this difference.
Methods We sampled 64 experimental grassland plots in central Texas with plant species mixtures of either all native or all exotic species; half with summer irrigation. We tested how native vs. exotic plant species mixtures and summer irrigation affected ...
Forage News [2018-11], 2018 University of Kentucky
Forage News [2018-11], University Of Kentucky Department Of Plant And Soil Sciences
- Heart of America Conference - Jan. 22-23, 2019
- USDA Hay Markets - October 30, 2018
- Grazing Too Short in Fall and Winter Can Mean More Weeds in the Spring
- Forage Identification Book Now Available
- Utilizing Cost Share for Farm Improvements
- Late Fall Nitrogen Benefits Horse and Cattle Pastures