A5103202974- Plant Pathogens and Resistance
- Peanut Plant Research Studies
- Plant Disease Resistance and Genetics
- Berry genetics and cultivation research
- Particle accelerators and beam dynamics
- SAS software applications and methods
- Particle Accelerators and Free-Electron Lasers
- Ruminant Nutrition and Digestive Physiology
- Genetics and Plant Breeding
- Nitrogen and Sulfur Effects on Brassica
- Nematode management and characterization studies
- Sugarcane Cultivation and Processing
- Wheat and Barley Genetics and Pathology
- Plant tissue culture and regeneration
- Superconducting Materials and Applications
- Potato Plant Research
- Atomic and Molecular Physics
- Gyrotron and Vacuum Electronics Research
- Plant-Microbe Interactions and Immunity
- Plant Genetic and Mutation Studies
- Plant Virus Research Studies
- Nuclear Physics and Applications
- Plant Disease Management Techniques
- Mycotoxins in Agriculture and Food
- Plant and fungal interactions
Blackstone (United States)
1991-2022
Virginia Tech
1991-2022
Los Alamos National Laboratory
1993-2002
The University of Adelaide
1994
University of Wisconsin–Madison
1985
Tobacco mosaic virus (TMV) is an extensively studied RNA known to infect tobacco (Nicotiana tabacum) and other solanaceous crops. TMV has been classified as a seedborne in tobacco, with infection of developing seedlings thought occur from contact the TMV-infected seed coat. The mechanism transmission through was K 326 cultivar flue-cured tobacco. Cross pollinations were performed determine effect parental tissue on seed. Dissection individual seeds into coat, endosperm, embryo location...
A 5-parent full diallel and a 9-parent half including adapted exotic wheats of both winter spring types were evaluated in the greenhouse for components partial resistance to S. [Leptosphaeria] nodorum. F1 seedlings parents inoculated with mixture isolates L. nodorum inheritance incubation period infection frequency. Significant general combining ability effects found specific period, but observed only 40% hybrid combinations 16% diallel. Additive gene most important components. Reciprocal...
The Dual-Axis Radiographic Hydrodynamics Test (DARHT) facility will employ two perpendicular electron linear induction accelerators to produce intense, bremsstrahlung X-ray pulses for flash radiography. We intend measurements containing three-dimensional information with sub-millimeter spatial resolution of the interior features very dense, explosively-driven objects. be completed in phases first phase having become operational July 1999 utilizing a single-pulse, 20-MeV, 2 -kA, 60-ns...
Tall fescue KY-31 is an important primary forage for beef cattle. It carries a fungal endophyte that produces ergovaline, the main cause of tall toxicosis leads to major revenue loss livestock producers. The MaxQ, engineered cultivar, hosts ergovaline nonproducing strain fungus and consequently nontoxic. However, it less attractive economically. not known how rumen microbiome processes these two forages towards nutrient generation transformation. We have analysed compositions cattle grazed...
Two generation mean analyses were used to assess the inheritance of partial resistance black root rot in burley tobacco. A cultivar moderately resistant rot, KY 14, was crossed with a low resistance, Burley 21, and susceptible cultivar, Judy's Pride. Five-week-old seedlings parental, F 1 , 2 both backcross generations for each cross transplanted into soil infested 100 chlamydospores Thielaviopsis basicola per gram mixture grown greenhouse at 21 C. Percent necrosis estimated 3 wk after transplanting
The tobacco cyst nematode [ Globodera tabacum solanacearum (Miller and Gray) Behrens] is an important pathogen affecting flue‐cured ( Nicotiana L.) in Virginia North Carolina type 32 Maryland. objective of this study was to determine the mode inheritance resistance G. t. cultivars Coker 371 Gold Kutsaga 110. Each cultivar crossed susceptible K 326 F 1 progeny were backcrossed each parent. Plants from parent , 2 BC P s r evaluated for greenhouse. Six‐week‐old transplants inoculated with 6000...
In the United States there is a need to educate young children in science, technology, and agriculture. Through collaboration with many agricultural groups, Southern Piedmont Agricultural Research Education Center has set up program that works 3rd grade students teachers reinforce science been taught classroom hands-on environment. This grown size scope over years it place, but partnerships come together from Extension, Virginia Tech, USDA, others what makes this such success.
This study was undertaken to determine the role of healthcare assistants (HCAs) working within general practice setting as there are a dearth studies which specifically focused on this area work in Britain. A series semi-structured interviews revealed that is one developing, but also presents opportunities for further education and training strategies. The highlights desires HCAs gain professionalized status turn covers important issue regulation.
Control of tobacco cyst nematode ( Globodera tabacum solanacearum Miller and Gray) is major concern to growers flue‐cured Nicotiana L.) in Virginia. A diverse geographic array accessions including cultivars several classes tobacco, type introductions, species were evaluated during 1993 1994 the greenhouse identify new sources resistance (TCN). Six‐week‐old transplants inoculated with 6000 TCN eggs from crushed cysts. An average eight weeks after inoculation, a 1‐g sample root was stained...
Neutron dose equivalent rates have been measured for 800-MeV proton beam spills at the Los Alamos Meson Physics Facility. detectors were used to measure neutron levels a number of locations each beam-spill test, and energy spectra several tests. Estimates expected various detector made using simple analytical model developed spills. A comparison measurements estimates indicates that is reasonably accurate in estimating rate shielding geometries. The fails more complicated geometries, where...
An upgrade is in progress to the Los Alamos Proton Storage Ring (PSR) allow direct injection of H/sup -/ beam into ring and provide a bump system move circulating off stripper foil. The primary benefits this are matching transverse phase space injected PSR acceptance reduction foil hits by factor ten. Foil thickness optimized minimize combination circulating-beam losses plus due excited 0/ states produced at injection. overall five expected. project comprises extensive modifications line,...
The peak intensity of the PSR is limited by a fast transverse instability. In 1996 we started project to upgrade 200 /spl mu/A at 30 Hz, which requires operation above instability threshold achieved with our present RF system. We have, therefore, resumed experimental program understand and control this paper will latest data.
Polyacrylamide gel electrophoresis (PAGE) has been demo onstrated as a potential tool for cultivar identification in several crop species; however, information concerning tobacco is generally lacking the literature. Plants from 10 cultivars representing Maryland and burley air‐cured, flue‐cured, cigar types were grown field two separate greenhouses. Leaf samples collected frozen liquid N 2 at three maturity dates (32, 40 60 days after transplanting). Isozyme separations performed using PAGE...
Tobacco seed performance is traditionally measured as percentage germination at 14 d under controlled laboratory conditions.However, greenhouse conditions, lots with equal 14-d may exhibit substantial differences in uniformity of early seedling growth and spiral root incidence that impact the number usable transplants.A index (SPI) was developed to quantitatively describe tobacco performance.The emergence, relative leaf area uniformity, determined by computer image analysis were used...