Pack Factor Measurements For Corn In Grain Storage Bins,
2015
Kansas State University
Pack Factor Measurements For Corn In Grain Storage Bins, Rumela Bhadra, Aaron P. Turner, Mark E. Casada, Michael D. Montross, Sidney A. Thompson, Josephine M. Boac, Samuel G. Mcneill, Ronaldo G. Maghirang
Biosystems and Agricultural Engineering Faculty Publications
Shelled yellow corn is commonly stored in concrete or corrugated steel bins. Granular materials compact under their own weight, primarily due to particle rearrangement, leading to an increase in bulk density and a change in volume when stored. Reliable grain pack factors are needed to estimate storage capacities and to accurately monitor grain inventories. A science-based model (WPACKING) of pack factors is available that uses the differential form of Janssen's equation and takes into account the variation in density caused by pressure variation with height and moisture content of the grain and accounts for the effects of grain type, test …
Invasiveness Of An Exotic Gall Wasp Is Influenced By Interactions With Exotic And Endemic Organisms,
2015
University of Kentucky
Invasiveness Of An Exotic Gall Wasp Is Influenced By Interactions With Exotic And Endemic Organisms, Ignazio Graziosi
Theses and Dissertations--Entomology
American chestnut was once a crucial component of North American forests, but it was functionally eliminated by the introduction of the chestnut blight fungus. Chestnut is recently experiencing resurgence, but the introduced Asian chestnut gall wasp, a specialist herbivore, threatens chestnut recovery. I characterized this invasion and the interactions developing with host associates as the gall wasp spread in North America. Gall wasp dispersal is attributable to host plant distribution, effects of prevailing winds during adult insect emergence, and to topography. This knowledge may be useful to more accurately predict locations of future gall wasp infestations. Gall wasp invasiveness is …
Mechanical Exclusion And Biological Control Strategies For The Invasive Brown Marmorated Stink Bug, Halyomorpha Halys (Hemiptera: Pentatomidae),
2015
University of Kentucky
Mechanical Exclusion And Biological Control Strategies For The Invasive Brown Marmorated Stink Bug, Halyomorpha Halys (Hemiptera: Pentatomidae), Rachelyn Dobson
Theses and Dissertations--Entomology
The brown marmorated stink bug (Halyomorpha halys) is an invasive, agriculturally destructive pest present in most of the United States. Because organic farmers have few effective control options to combat this pest, three potential control options were investigated. Screens of different mesh sizes (0.42cm, 0.32cm, and 0.10cm) that covered vegetable crops were evaluated for their ability to exclude H. halys, allow the entry of beneficial insects, and protect the crop from various types of damage. H. halys and native stink bug egg masses were placed in an organic field and evidence of predation and parasitism from native …
Taxonomic And Molecular Studies In Cleridae And Hemiptera,
2015
University of Kentucky
Taxonomic And Molecular Studies In Cleridae And Hemiptera, John Moeller Leavengood Jr.
Theses and Dissertations--Entomology
Taxonomic changes are made based on checkered beetle (Coleoptera: Cleridae) types of the Natural History Museum, London (BMNH).Lectotypes are designated (and holotypes and paralectotypes recognized) for 44 species of Hydnocerinae, including the type species for Isolemidia, Parmius, Paupris, Allelidea, Blaesiopthalmus and Lemidia, four species of Enoclerus (Clerinae), and 14 species of Cymatodera (Tillinae). Annotations include comments on additional type material, new type locality, previous (type series) locality, and questionable or missing types. Phyllobaenus pallipes(Gorham) and P. rufithorax (Gorham) are synonymized with P. flavifemoratus(Gorham), P. chapini (Wolcott) is synonymized under P. lateralis (Gorham), and P. villosus (Schenkling) …
A Comparative Study Of Eastern And Western North American Populations Of Hippodamia Convergens (Coleoptera: Coccinellidae),
2015
University of Kentucky
A Comparative Study Of Eastern And Western North American Populations Of Hippodamia Convergens (Coleoptera: Coccinellidae), Joshua S. Mccord
Theses and Dissertations--Entomology
Hippodamia convergens is a widely distributed insect predator in the United States and parts of Canada and Mexico. Several insectaries collect overwintering adults from aggregation sites in the Rocky Mountains during their winter dormancy. Collected beetles are then sold throughout the United States for augmentative biological control. This practice could have negative impacts on local populations of Hippodamia convergens in the Eastern United States. Intra-specific variation among H. convergens populations was examined for two characteristics of adults: photoperiodic induction of diapause and the presence of three known male-killing endosymbiont bacteria; Wolbachia, Spiroplasma, and Rickettsia. Four populations of H. …
New Insights Into The Function And Development Of The Soldier Caste In Termites,
2015
University of Kentucky
New Insights Into The Function And Development Of The Soldier Caste In Termites, Li Tian
Theses and Dissertations--Entomology
The evolution of nonreproductive castes is a defining characteristic of eusociality. The function and developmental regulation of the altruistic worker and soldier caste is the central element contributing to major advantages of eusociality over solitary animals. The soldier caste is the first evolved sterile caste in termites. Their primary function is believed to be colony defense. However, the function and development of termite soldiers remains largely unknown. Because of their apparent morphological adaptation for fighting and their limited behavior repertoire, our understanding of colony defense by termite soldiers is limited to their physical defense. In addition, we know little about …
Student Perceptions Of Organic Food In Relation To Health, Environment And Pricing,
2015
University of Ketucky
Student Perceptions Of Organic Food In Relation To Health, Environment And Pricing, Stacey Paterson
Theses and Dissertations--Nutrition and Food Systems
The organic industry is full of opinions and perceptions, which influence consumer purchasing decisions. A convenience sample of 69 college students between the ages of 19-23 registered in a basic food preparation class participated in this study. A sensory analysis of organic and conventional fruits, vegetables, meat and poultry, eggs and dairy measuring categorical taste differences between the two types of food. Student perceptions of organic foods in relation to health, environment and pricing and the likelihood of purchase were also studied. The influence of Diet and Well-being on organic purchases predominantly mattered somewhat to students, while price mattered completely. …
Management And Production Practices Of The Missouri Beef Cattle Industry,
2015
Missouri State University
Management And Production Practices Of The Missouri Beef Cattle Industry, Jordan Lee Kinder
Graduate Theses/Dissertations
A survey of beef cattle producers in Missouri was conducted to evaluate the management and production practices of the beef cattle industry. Production and demographic data from 112 (response rate of 5.9%) were analyzed to identify areas in need of future research and education. The web-based survey was conducted through Survey Monkey© and distributed by the Missouri Cattlemen's Association to a list of their members. Responding producers were located in 65 of the 114 counties in Missouri, with 63.3% located north of Interstate 44 and 36.7% south of Interstate 44. The majority (47.3%) of producers were between ages 31 and …
Letter From The Dean,
2015
University of Arkansas, Fayetteville
Letter From The Dean, Michael Vayda
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Comparison Of Berry Quality In Highbush Blueberry Cultivars Grown According To Conventional And Organic Methods,
2015
TÜBİTAK
Comparison Of Berry Quality In Highbush Blueberry Cultivars Grown According To Conventional And Organic Methods, Ireneusz Ochmian, Karolina Kozos, Piotr Chelpinski, Malgorzata Szczepanek
Turkish Journal of Agriculture and Forestry
This research was conducted in the Laboratory Orchard at the Department of Horticulture, West Pomeranian University of Technology in Szczecin and at a certified production farm specializing in the cultivation of highbush blueberry located in Szczecin. The effect of cultivation conditions?organic plantation in organic peat substrate (pH 3.46) and conventional plantation in mineral substrate (pH 5.32)-on the berry quality of four highbush blueberry cultivars (firmness, size, chemical composition including content of organic compounds and polyphenols) was examined. Blueberry bushes were planted at a spacing of 2.3 × 1.2 m. Bushes were planted on organic and conventional plantations, and the substrates …
Seed Priming With Cacl2 And Ridge Planting For Improved Drought Resistance In Maize,
2015
TÜBİTAK
Seed Priming With Cacl2 And Ridge Planting For Improved Drought Resistance In Maize, Muhammad Bismillah Khan, Mubshar Hussain, Abid Raza, Shahid Farooq, Khawar Jabran
Turkish Journal of Agriculture and Forestry
Drought-induced losses in crop output have forced the scientific community to develop efficient management strategies to cope with the adversities of drought stress. This field trial was done to assess the role of seed priming techniques and planting methods for improving drought resistance in Pakistani hybrid maize in 2011. Maize seeds were soaked in an aerated solution of CaCl2 (osmopriming; $\Psi$s -1.25 MPa) and distilled water (hydropriming), while untreated dry seeds were taken as controls. Primed and untreated seeds were sown on either ridges or a flat seedbed and were subjected to drought at vegetative and tasseling stages. Drought was …
Moth Bean Germplasm Screening Against Yellow Mosaic Virus, Ii. Developmentof Moth Bean High-Yielding Seed And Fodder Cultivars,
2015
TÜBİTAK
Moth Bean Germplasm Screening Against Yellow Mosaic Virus, Ii. Developmentof Moth Bean High-Yielding Seed And Fodder Cultivars, Muhammad Yaqoob, Naqib Ullah Khan, Muhammad Mansoor, Samrin Gul, Ibni Amin Khalil, Khilwat Afridi
Turkish Journal of Agriculture and Forestry
Moth bean [Vigna aconitifolia (Jacq.) Marechal] susceptibility to yellow mosaic virus (YMV) purged the crop from the farming system. Therefore, genotype-by-environment interaction (GEI) and biplot studies were undertaken to develop YMV-resistant moth bean cultivars from the germplasm. The germplasm was acquired from the National Agricultural Research Centre (NARC), Islamabad and from the farm fields in two provinces, Punjab and Sindh, Pakistan. Two different groups of moth bean genotypes were screened for YMV versus seed yield (11 genotypes) and YMV versus fodder yield (10 genotypes) over three years (2006-2008) in three locations in Pakistan [D.I.Khan Agriculture Research Station (ARS), Serai Naurang …
Effect Of Ditylenchus Dipsaci Kühn, 1857 (Tylenchida: Anguinidae) On Onionyield In Karaman Province, Turkey,
2015
TÜBİTAK
Effect Of Ditylenchus Dipsaci Kühn, 1857 (Tylenchida: Anguinidae) On Onionyield In Karaman Province, Turkey, Eli̇f Yavuzaslanoğlu, Abdullah Di̇ki̇ci̇, İbrahi̇m Hali̇l Elekci̇oğlu
Turkish Journal of Agriculture and Forestry
This study was conducted to investigate the effect of the stem and bulb nematode Ditylenchus dipsaci Kühn (Tylenchida: Anguinidae) on yield parameters of some onion varieties in Karaman Province, Turkey. Experiments were established in a naturally infested onion field during two consecutive years (2012-2013). Nematode population development was followed at the beginning and end of the experiment. The reproduction rate was also calculated. Onion yield and the representative average diameter and length of the onion cultivar bulbs were determined. Yield parameters of six onion varieties were compared on nematicide-treated and untreated control plots in the experiments. Nematode populations significantly decreased …
Metal Uptake, Oxidative Metabolism, And Mycorrhization In Pigeonpeaand Pea Under Arsenic And Cadmium Stress,
2015
TÜBİTAK
Metal Uptake, Oxidative Metabolism, And Mycorrhization In Pigeonpeaand Pea Under Arsenic And Cadmium Stress, Neera Garg, Priyanka Singla, Purnima Bhandari
Turkish Journal of Agriculture and Forestry
Presence of arsenic (As) and cadmium (Cd) at elevated levels in the soils is threatening agricultural productivity. Arbuscular mycorrhizae (AM) enhance plant resistance to metal(loid)s by sequestering them into roots, thus restricting their translocation into leaves. The present study evaluated differential responses of AM-colonized Cajanus cajan and Pisum sativum plants to As and Cd uptake and oxidative metabolism under As and Cd stress (0, 30, and 60 mg kg-1). Arsenic uptake was significantly higher than Cd uptake, which caused greater growth inhibitions and induced oxidative stress. Pea was more sensitive, with higher toxicity symptoms in roots than leaves. Mycorrhizae were …
Emissions Of Volatile Organic Compounds From Lacquer Coatings Used In The Furniture Industry, Modified With Nanoparticles Of Inorganic Metal Compounds, Agata Stachowiak Wencek, Magdalena Zborowska, Wlodzimierz Pradzynski, Boguslawa Waliszewska
Turkish Journal of Agriculture and Forestry
This study presents results of studies on emissions of volatile organic compounds from lacquer products containing nanoparticles of inorganic metal compounds (SiO2, TiO2, and Ag). The lacquers selected for analyses were applied on the surface of Scots pine (Pinus sylvestris L.) wood. Tests were conducted by gas chromatography coupled with mass spectrometry and thermal desorption. Concentrations of volatile organic compounds (VOCs) released to the air by tested coatings in the first stage of the analyses fell within a very broad range (307-1829 µg/m3). Analyses of VOC emissions were conducted after 1, 3, 5, 7, 10, 30, 60, and 90 days. …
Efficacy Of The Entomopathogenic Nematode Heterorhabditis Bacteriophora Using Different Application Methods In The Presence Or Absence Of A Natural Enemy, Ramalingam Karthik Raja, Canan Hazir, Ari̇fe Gümüş, Cem Asan, Mehmet Karagöz, Selçuk Hazir
Turkish Journal of Agriculture and Forestry
Various application methods for the entomopathogenic nematode Heterorhabditis bacteriophora were evaluated under laboratory and field conditions. Four different methods of applying the infective juveniles (IJs) of the nematode to soil were assessed including (1) insect cadavers (referred to as nematode-infected cadavers), (2) subsurface injection, (3) spraying, and (4) drip irrigation. In the laboratory experiment, except for the control with no nematodes, all treatments showed more than 95% insect mortality of the bait insect (Galleria mellonella) with no significant differences among treatments. The same experimental setup was conducted with the introduction of mites, Sancassania polyphyllae (Acari: Acaridae), which are natural enemies …
Utilization Of The Pomegranate Tree (Punica Granatum L.) In The Paper Industry,
2015
TÜBİTAK
Utilization Of The Pomegranate Tree (Punica Granatum L.) In The Paper Industry, Sezgi̇n Koray Gülsoy, Ayben Kiliç Pekgözlü, Asli Ceren Aktaş
Turkish Journal of Agriculture and Forestry
In this study, the chemical composition, fiber morphology, pulp, and paper properties of the pomegranate tree (Punica granatum L.) were determined. Stem and branch wood were analyzed separately. Kraft and kraft- anthraquinone (AQ) methods were used for the pulping processes. Stem wood showed superiority to branch wood with longer, wider, thicker-walled fibers. The holocellulose, $\alpha$-cellulose, and lignin contents of branch and stem wood were 72.98%-73.50%, 38.37%-39.92%, and 21.04%-25.29%, respectively. In addition, the yield of kraft pulp made from stem wood was higher than that of branch wood. However, branch wood handsheets had higher strength properties and brightness than those of …
Effects Of Arbuscular Mycorrhizal Fungus, Humic Acid, And Whey On Wilt Diseasecaused By Verticillium Dahliae Kleb. In Three Solanaceous Crops, Semra Demi̇r, Suat Şensoy, Elvan Ocak, Şefi̇k Tüfenkci̇, Emre Demi̇rer Durak, Çeknas Erdi̇nç, Hüsameddi̇n Ünsal
Turkish Journal of Agriculture and Forestry
This study examined the effects of arbuscular mycorrhizal fungi (AMF), humic acid (HA), and whey (W) application on wilt disease caused by Verticillium dahliae Kleb. in tomato, pepper, and eggplant. Single, dual, and triple applications of AMF (2.5 g inocula of either Glomus mosseae or G. intraradices), HA (500 ppm), and W (50 mL kg-1) were found to improve the morphological growth and nutritional status of all three host species. Moreover, dual and triple applications reduced the severity of wilt disease caused by V. dahliae by between 40% and 70.5%. Triple application of AMF, HA, and W decreased the number …
Comparative Analysis Of Genetic Diversity Among Chinese Watermelon Germplasmsusing Ssr And Srap Markers, And Implications For Future Genetic Improvement, Pangqiao Wang, Qiong Li, Jianbin Hu, Yan Su
Turkish Journal of Agriculture and Forestry
The genetic diversity of watermelon [Citrullus lanatus (Thunb.) Matsum. & Nakai] in China, the world's largest producer of watermelon fruits, has not been examined. Two molecular markers, sequence-related amplified polymorphism (SRAP) and simple sequence repeat (SSR), were used to investigate the genetic variation and genetic relationship among 54 Chinese watermelon accessions, as well as 7 accessions from Africa, the United States, and Japan. SRAP assay generated 312 bands, of which 163 were polymorphic, while SSR assay detected 101 alleles with 87 polymorphic alleles and 114 genotypes. A comparative analysis of the diversity index, effective multiplex ratio, and marker index of …
Species-Specific Growth And Photosynthetic Responses Of First-Year Seedlingsof Four Coniferous Species To Open-Field Experimental Warming, Saerom Han, Sun Jeong Lee, Tae Kyung Yoon, Seung Hyun Han, Jongyeol Lee, Seongjun Kim, Jaehong Hwang, Min Seok Cho, Yowhan Son
Turkish Journal of Agriculture and Forestry
Temperature increase due to climate change may affect the growth and physiological traits of trees. To cope with climate change, it is important to understand the responses of trees to these changes, as well as how these responses vary among species, functional groups, and biomes. In this study, we aimed to examine the species-specific growth and photosynthetic responses of first-year seedlings of 4 coniferous species to future temperature increase by conducting an open-field experimental warming study. The air temperature in the warmed plots was maintained at 3.02 °C higher than that in the control plots with an open-field experimental warming …
