A5015096957- Economic and Financial Impacts of Cancer
- Bioenergy crop production and management
- Glutathione Transferases and Polymorphisms
- Health Systems, Economic Evaluations, Quality of Life
- Biofuel production and bioconversion
- Peanut Plant Research Studies
- Agricultural pest management studies
- Turfgrass Adaptation and Management
- Ruminant Nutrition and Digestive Physiology
- Rangeland and Wildlife Management
- Forest Biomass Utilization and Management
- Coconut Research and Applications
- Plant and fungal interactions
- Geotechnical Engineering and Underground Structures
- Geotechnical Engineering and Soil Mechanics
- Agronomic Practices and Intercropping Systems
- Wheat and Barley Genetics and Pathology
- Genetics and Plant Breeding
- Geotechnical Engineering and Soil Stabilization
- Agroforestry and silvopastoral systems
- Plant Taxonomy and Phylogenetics
- Microbial Metabolic Engineering and Bioproduction
- Genetic Mapping and Diversity in Plants and Animals
- Sugarcane Cultivation and Processing
- Insect Resistance and Genetics
Agricultural Research Service
2015-2024
United States Department of Agriculture
2005-2023
University of Sheffield
1984-2022
University of Georgia
1993-2022
University of Florida
2022
U.S. Dairy Forage Research Center
2022
National Cancer Institute
2005-2019
Division of Cancer Epidemiology and Genetics
2007-2019
National Institutes of Health
2005-2019
Southeast Watershed Research Laboratory
2015
A relatively new method for mechanized maintenance of railroad ballast (stoneblowing) puts a layer single size stone between the and each tie creating two-layer gravel support. To get better understanding behavior this arrangement series large diameter, triaxial tests have been carried out on layered specimens. quantifying particle breakage during testing has developed, conceptual model used to explain combined effects shearing observed specimen behavior.
Abstract Dedicated energy crops and crop residues will meet herbaceous feedstock demands for the new bioeconomy in Central Eastern USA. Perennial warm-season grasses corn stover are well-suited to eastern half of USA provide opportunities expanding agricultural operations region. A suite associated management practices have been developed by researchers from Agricultural Research Service US Department Agriculture (USDA) collaborators with USDA Regional Biomass Centers. Second generation...
The U.S. germplasm collection for peanut, Arachis hypogaea L., consists of 7432 accessions and contains a great amount genetic diversity. Information on economically important traits does not exist most due to the time labor required evaluation. development core peanut would provide subset that are representative entire that, could be extensively examined. objective this research was select peanut. Data were obtained from Germplasm Resources Network (GRIN). then stratified by country origin...
Warm-season perennial grasses are a promising source of biomass for energy production in Southeast USA, and low-input is desirable. With only residual fertility the soil no irrigation, this test compared yields eight under production: L 79–1002 energycane (Saccharum hyb.), Merkeron N51 napiergrass (Pennisetum purpureum Schum.), three clones giant reed (Arundo donax L.), two switchgrass (Panicum virgatum L.) lines. For first 2 years maintained dry matter (DM) over 25 Mg DM ha−1 year−1,...
Abstract Current knowledge of yield potential and best agronomic management practices for perennial bioenergy grasses is primarily derived from small‐scale short‐term studies, yet these studies inform policy at the national scale. In an effort to learn more about how perform across multiple locations years, U.S. Department Energy ( US DOE )/Sun Grant Initiative Regional Feedstock Partnership was initiated in 2008. The objectives were (1) provide a wide range information feedstock selection...
In situ breast carcinoma is not so well characterized for men as women.Therefore, the authors of current study compared male and female in invasive carcinomas Surveillance, Epidemiology, End Results (SEER) database National Cancer Institute to document these patterns.In composed 9.4% all (n = 280 2984) 11.9% 53,928 454,405) during years 1973-2001. rates rose 123% 555% women over this time period; whereas distant disease fell both genders. Median ages at diagnosis were 62 68 among men, with...
The objective of this study was to investigate the nutritive value and fermentation characteristics different species warm-season grass silages not treated or with bacterial inoculants in summer fall. Nine forage cultivars, 'Merkeron' elephantgrass (Pennisetum purpureum Schumach.), 'Mulato' (Brachiaria sp.), 'Argentine' bahiagrass (Paspalum notatum Flüggé), 'Florico' stargrass (Cynodon nlemfuensis Vanderyst), 'Tifton 85' bermudagrass 'Jiggs' dactylon L.), 'Coastcross-2' 'Florakirk'...
Sorghum [ bicolor (L.) Moench] is highly susceptible to the fungal disease anthracnose, which a major biotic constraint forage and grain production. With an aim develop durable resistance two unique genetic sources of in sorghum were selected create mapping populations identify genomic regions that control anthracnose resistance. A series quantitative trait loci (QTL) identified conferred variable levels resistance, three controlled stable across all environments, while QTL environment...
Core collections have many potential uses and could greatly increase the utilization of germplasm resources. A core collection was recently selected for U.S. peanut ( Arachis hypogaea L.) by clustering accessions based on phenotypic similarities then randomly sampling 10% from each cluster. During period 1986 to 1991, field studies were conducted screen entire resistance late leafspot [ Phaeoisariopsis personata (Berk. & M.A. Curtis) Arx syn. Cercosporidium personatum Curtis)]. The...
Railway track ballast requires regular attention to maintain line and level. A recently developed maintenance method, known as pneumatic injection (PBI) or stoneblowing, re-levels realigns the by lifting sleepers blowing smaller size gravel between base of sleeper. This creates a two-layer bed. Series large-scale model tests have been carried out gain better understanding behavior such bed under repeated loading. The results confirm that stoneblowing is form than commonly used tamping but...
Pennisetum purpureum Schum. (napiergrass) is a perennial grass used for forage especially in South America and Africa. Over the last 30 years, USDA–ARS nursery containing accessions collected from all over world has been established Tifton, Georgia. The study reported here was conducted to assess molecular genetic variation relatedness among 89 Tifton using amplified fragment length polymorphism markers, morphological data ploidy level. Using 218 polymorphic markers eight selective primer...
ABSTRACT Anthracnose, caused by the fungal pathogen Colletotrichum sublineolum Henn. ex. Sacc. and Trotter 1913, is an economically damaging disease of sorghum [ Sorghum bicolor (L.) Moench] in hot humid production regions world. Control anthracnose almost exclusively through use genetic resistance. To further elucidate resistance to anthracnose, a recombinant inbred line population derived from cross BTx623 (susceptible) SC748‐5 (resistant) was created. A linkage map constructed using 117 F...
Abstract ‘Coastcross II’ (CC II; Reg. no. CV‐49, PI 673409) forage bermudagrass ( Cynodon sp.) was released as an associate cultivar in Georgia July 2014. Coastcross II originated from gamma‐ray irradiation of sprigs I I) 1971. After irradiation, greater than a half million were planted north (Blairsville), where CC one four surviving plants after winter freezes. Subsequent testing has shown that superior yields to and is comparable ‘Tifton 85’. also significantly higher tolerance stem...
The beauty and uniformity of vegetatively propagated grasses on golf course greens, fairways tees, athletic fields lawns the superiority forage that we enjoy today did not happen by accident. Risks were taken, innovative approaches used, new equipment was developed modified, public institutions private industry teamed up to make what have a reality. In 1940s 1950s, pioneering discoveries advances made in inventing equipment, establishing protocols, developing consumer confidence. Vegetative...
Abstract Peanut (Arachis hypogaea L.) is susceptible to aflatoxin contamination when pods are developing under drought conditions in the field. The development of cultivars which resist preharvest would be advantageous, but has been limited by lack genes for resistance. Several genotypes have suggested as potential sources Conflicting results reported on how useful this resistance may be, and some these never specifically examined contamination. objective study was evaluate stressed...