Search Results

114 results

  1. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups (Workshop), APW 03

    Maximizing the spray droplet to effectively deliver pesticides

    LEGLEITER T.
    University of Kentucky, University of Kentucky Research and Education Center, Princeton, KY, U.S.A.
    Numerous factors influence the efficacy of a pesticide on the intended target pest, including the delivery method of the pesticide to the target pest. Pesticides in the agronomic realm are most often delivered using spray droplets produced by a broadcast ...
  2. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 02

    A newly characterized regulatory mechanism modulates the NIC2 locus that controls nicotine biosynthesis

    LING Y.; PRIYANKA P.; SANJAY K.S.; BARUNAVA P.; SITAKANTA P.
    Department of Plant and Soil Sciences, Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, KY 40546, U.S.A.
    The AP2/ERF family transcription factors (TFs) have emerged as key regulators of specialized metabolite biosynthesis, including nicotine in tobacco. Several group IX AP2/ERFs form physically linked gene clusters, likely originated from gene duplication ...
  3. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 08

    Growth and nutrient uptake of Burley tobacco fertilized with alternative sources of potassium

    PEARCE B.(1); PAVULURI K.(2)
    (1) University of Kentucky, Lexington, KY, U.S.A.; (2) Sirius Minerals Plc, Scarborough, U.K.
    Burley tobacco has a relatively high requirement for potassium (K) with a typical crop removing over 250 kg K 2 O/ha. High levels of chloride (Cl) in the cured leaf can have a negative impact on cured leaf quality, limiting the amount of muriate of potash ...
  4. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 20

    Impact of reduced drift spray nozzles on herbicide deposition and efficacy

    LEGLEITER T.
    University of Kentucky, University of Kentucky Research and Education Center, Princeton, KY, U.S.A.
    The use of the growth regulator herbicide dicamba has significantly increased over the past two growing seasons with the introduction of dicamba-resistant soybean. The use of dicamba post-emergence in soybean has shown to be vital in controlling resistant ...
  5. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 26

    Dark air-cured, dark fire-cured and Burley tobacco TSNA levels, yield and quality in response to potassium rate and source

    KEENEY A.B.(1); BAILEY W.A.(2)
    (1) University of Kentucky, Plant Science Building, Lexington, KY, U.S.A.; (2) University of Kentucky, Research and Education Center, Princeton, KY, U.S.A.
    Field trials were conducted at the University of Kentucky Research and Education Center in Princeton, Kentucky, in 2016, using KTD14LC in both dark air-cured (DAC) and dark fire-cured (DFC) trials. The trial was repeated in 2017 at Princeton KY, Lexington ...
  6. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 36

    Use of reverse genetic approach to study the role of tobacco trichome-produced cembratrien-diols in pest/insect interaction

    MIHAYLOVA-KROUMOVA A.(1); PEARS R.(2); FISHER C.R.(2); KORENKOV V.D.(1); ARTIOUCHINE I.S.(1); PFEUFER E.(3); WAGNER J.G.(1)
    University of Kentucky, Lexington, KY, U.S.A.
    Diterpenes cembratiene-diols (CBT-diols), sucrose esters, labdanoids and hydrocarbons are prominent tobacco trichome exudate constituents. They are considered to be the first line of defense barriers against pests/insects through chemical toxicity, ...
  7. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 42

    Evaluation of cured leaf residues of several common pesticides used in dark air-cured and dark fire-cured tobacco

    BAILEY W.A.; RODGERS J.C.; KEENEY A.B.; RICHMOND M.D.
    University of Kentucky, Research and Education Center, Princeton, KY, U.S.A.
    Pesticide residue trials were conducted from 2011 to 2017 to evaluate cured leaf residues of eight commonly used pesticides registered for use on dark tobacco in the United States. Pesticides tested included azoxystrobin, acephate, lambda-cyhalothrin, and ...
  8. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, APPOST 24

    Development and evaluation of tobaccos engineered for high leaf-oil accumulation

    PERRY J.P.(1); HILDBRAND D.(2); YUAN L.(1); PETRIE J.(3); GREEN A.(3); LEITA B.(3)
    (1) University of Kentucky, KTRDC, Lexington, KY, U.S.A.; (2) University of Kentucky, Department of Plant and Soil Sciences, Lexington, KY, U.S.A.; (3) CSIRO Agriculture & Food, Canberra, Australia
    Demand for plant-derived oil (triacylglycerols, TAG) commodities is expected to more than double in coming decades due to increasing food oil requirements. Furthermore, the emerging shift to use renewable feedstock for fuels and industrial chemicals has ...
  9. CORESTA Congress, Kunming, 2018, Plenary Session, IG 01 (also presented at TSRC 2018)

    Production of very low nicotine Burley tobacco: short term feasibility from an agronomy viewpoint

    JACK A.M.; FISHER C.R.
    University of Kentucky, Lexington, KY, U.S.A.
    The U.S. Food and Drug Administration (FDA) has issued an Advance Notice of Proposed Rulemaking (ANPRM) to obtain information for developing a product standard that would lower nicotine to non-addictive levels. They have requested comments on a maximum ...
  10. CORESTA Congress, Kunming, 2018, Smoke Science/Product Technology Groups, ST 32 (also presented at TSRC 2018)

    Characterization and certification of smokeless tobacco reference products

    SLONE S.; CANETE S.; SHELTON B.; JI H.; JACK A.M.; BUSH L.; CHAMBERS O.
    Center for Tobacco Reference Products, University of Kentucky, Lexington, KY, U.S.A.
    The constituents of raw tobacco products are naturally variable, and product design, the manufacturing process and the evolving science of tobacco analytics may increase this variability. The call for certified tobacco reference materials and their ...