- Nematode management and characterization studies
- Legume Nitrogen Fixing Symbiosis
- Crop Yield and Soil Fertility
- Soybean genetics and cultivation
- Agronomic Practices and Intercropping Systems
- Soil Carbon and Nitrogen Dynamics
- Plant Disease Management Techniques
- Weed Control and Herbicide Applications
- Plant nutrient uptake and metabolism
- Plant Water Relations and Carbon Dynamics
- Entomopathogenic Microorganisms in Pest Control
- Wheat and Barley Genetics and Pathology
- Plant responses to water stress
- Banana Cultivation and Research
- Soil Geostatistics and Mapping
- Plant Parasitism and Resistance
- Plant Reproductive Biology
- Agricultural Practices and Plant Genetics
- Genetics and Plant Breeding
- Plant Physiology and Cultivation Studies
- Polymer-Based Agricultural Enhancements
- Phytoestrogen effects and research
- Soil and Water Nutrient Dynamics
- International Arbitration and Investment Law
- Phytochemicals and Antioxidant Activities
University of Tennessee at Knoxville
2012-2023
Mississippi State University
2020
Knoxville College
2016
University of Arizona
1972-1996
The relationship between corn ( Zea mays L.) yield and plant height has been poorly documented in major production systems. This study was conducted to assess the of with under four systems at Milan, TN from 2008 through 2010. Six N treatments rates 0, 62, 123, 185, 247, 308 kg ha −1 replications were evaluated a randomized complete block design following systems: nonirrigated after corn, soybean [ Glycine max (L.) Merr.], cotton Gossypium hirsutum (L.)], irrigated soybean. regression...
Summary The fine structure of egg shells four different genera belonging to the order Tylenchida has been examined. species examined were Meloidogyne javanica, Rotylenchulus reniformis, Tylenchulus semipenetrans and Pratylenchus minyus . They are all similar in their basic structure, being composed vitelline membrane, chitin lipid layers, but there is considerable variability thickness these layers. We have retained conventional nomenclature because its convenience, it clear that layers a...
Abstract New urease and nitrification inhibitors polymer coatings were introduced in recent years, but their effects on N loss plant nutrition scarcely examined agronomic no-tillage production systems. A field experiment of urea treated with efficiency enhancers was conducted corn ( Zea mays L.) Tennessee, the USA during 2013–2015. ammonium nitrate (UAN) carried out Tennessee 2014 2015. Urea N-(n-butyl) thiophosphoric triamide (NBPT) at concentrations 20% (NBPT 1 ), 26.7% 2 or 30% 3 ) coated...
Field experiments were conducted in 2013 and 2014 Jackson, TN, to evaluate the efficacy of integrating cover crops POST herbicides corn control glyphosate-resistant (GR) Palmer amaranth. Crimson clover hairy vetch planted fall accumulated greater than 1,600 kg ha −1 aboveground biomass by time termination. provided 62% 58% amaranth 14 d before application, respectively. herbicide treatments glyphosate + S -metolachlor mesotrione atrazine, thiencarbazone-methyl tembotrione atrazine applied...
Sorghum alcoholic extracts exhibited antioxidant activity and capability to inhibit chemosensitize ovarian cancer cells<italic>in vitro</italic>.
The strength of the relationships corn ( Zea mays L.) yield, plant biomass, and leaf N concentration with early‐ to mid‐growing season combined normalized difference vegetation index (NDVI) height measurements has not been adequately documented. objective this study was compare among respective NDVI taken during early mid‐season under major cropping systems. Two field rate response studies in non‐irrigated after soybean [ Glycine max (L.) Merr.] (CS), cotton Gossypium hirsutum (L.)] (CCT),...
Abstract BACKGROUND: The physiological basis for using non‐destructive high‐resolution measurements of plant height through sensing to guide variable‐rate nitrogen (N) applications on corn ( Zea mays L.) during early (six‐leaf growth stage, V6) mid (V12) season is largely unknown. This study was conducted assess the relationships biomass and leaf N with in early‐ mid‐season under six different rate treatments. RESULTS: Corn significantly positively related an exponential model when both were...
Information is limited about phosphorus (P) fertilization effects on soybean seed composition. A field experiment was conducted to investigate the of P application rates concentrations various fatty acids, protein, and oil in under no-tillage low high testing soils at Jackson Milan, Tennessee from 2008 through 2011. Five 0, 10, 20, 30, 40 kg·P·ha-1 plus recommended fertilizer rate based soil results were arranged a randomized complete block design with four replicates. Protein, oil, acid...
Information on the effects of agricultural practices such as seeding rate (S), row spacing (RS), herbicide apical treatment (T), and nitrogen application (N) soybean seed nutrition (protein, oil, fatty acids, sugars, amino acids) is limited. Although composition (nutrition) constituents are genetically controlled, environmental conditions significantly influence amount quality nutrition. Therefore, objective this research was to understand responses these practices, environment, cultivar...
Relationship of corn (Zea mays L.) yield with plant height measured during early- to mid-season may possess the potential be used develop algorithms for guiding variable-rate N applications within a field. This study evaluated performance linear, quadratic, square root, logarithmic, and exponential models in assessing relationship at three growth stages four cropping systems years. The determination coefficient (R2) values these five were generally similar each stage system year or on...
Previous research has shown that the effect of potassium fertilizer on soybean ([Glycine max (L.) Merr.] seed composition (protein, oil, fatty acids, and isoflavones) is still largely unknown. Therefore, objective this was to investigate effects application protein, isoflavones under Midsouth environmental conditions. A three-year experiment conducted in two locations (Milan, TN Jackson, TN). Potassium (K) rates were applied form K2O at a rate 0 (Control, C), 45 (T1), 90 (T2), 134 (T3), 179...
Soybean is most often grown under rainfed conditions and negatively impacted by drought stress in the upper mid-south of United States. Therefore, identification drought-tolerance traits their corresponding genetic components are required to minimize impacts on productivity. Limited transpiration (TRlim) high vapor pressure deficit (VPD) one trait that can help conserve soybean water-use during late-season drought. The main research objective was evaluate a recombinant inbred line (RIL)...
Abstract Irrigated cropland continues to increase in Tennessee sustain yield when seasonal temperatures are high and water deficit occurs. Corn ( Zea mays L.) production is directly related availability. Inefficient irrigation scheduling can result excessive or inadequate applications. The objective of this study was optimize profitable corn using soil sensors improve scheduling. Three regimes plus a rainfed/check were evaluated field at the University Milan Research Education Center 2020...