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  1. CORESTA Congress, Online, 2022, Agronomy/Phytopathology Groups, AP 01

    Optimization of cytoplasmic male sterility based flue-cured tobacco hybrid seed production system

    DEERGASI Satish Kumar; VENKATA REDDY T.; VENKATA GANESH R.
    Research Department, ITC Limited – Agribusiness Division, Rajamahendravaram, India
    Tobacco is one of the commercial crops grown in India in an area of 0.45 M ha with 800 M kg production. India stands third in tobacco production and exports in the world. Flue-cured tobacco has a major share in exports. Seed is the most important...
  2. CORESTA Congress, Online, 2022, Agronomy/Phytopathology Groups, AP 02

    The interaction of water source and fertilizer chemistry on greenhouse tobacco transplant production

    REED T.D.; IRBY R.S.
    Virginia Tech, Southern Piedmont Center, Blackstone, VA, U.S.A
    A float greenhouse transplant study was conducted at the Virginia Tech Southern Piedmont Center (Blackstone, Virginia, United States) to evaluate the interaction of water source and fertilizer analysis on tobacco transplant production. One water...
  3. CORESTA Congress, Online, 2022, Agronomy/Phytopathology Groups, AP 03

    The impact of starter fertilizer to flue-cured tobacco growth

    VANN M.C.(1); DABBS D.W.(2)
    (1) Department of Crop & Soil Sciences, North Carolina State University, Raleigh, NC, U.S.A.; (2) Alamance Cooperative Extension, Burlington, NC, U.S.A.
    An increasing number of flue-cured tobacco farmers are including water soluble fertilizer products in transplant water applications. The goal of these starter fertilizer programs is to supply a small quantity of phosphorus, which may stimulate...
  4. CORESTA Congress, Online, 2022, Agronomy/Phytopathology Groups, AP 04

    Developing nitrogen and potassium fertilizer recommendations for Connecticut broadleaf cigar wrapper tobacco in North Carolina

    SHORT M.M.; VANN M.C.; CHEEK J.A.; MACHACEK J.L.; WHITLEY D.S.
    North Carolina State University – Crop and Soil Sciences Department, Raleigh, NC, U.S.A.
    Connecticut broadleaf cigar wrapper tobacco is a new crop to North Carolina. As such research-based fertilizer recommendations are needed to assist farmers with commercial production. Nitrogen (N) and potassium (K) rate trials were conducted in four...
  6. CORESTA Congress, Online, 2022, Agronomy/Phytopathology Groups, AP 06

    Response of soil bacterial community structure and co-occurrence network topology properties to soil physicochemical properties in long-term continuous cropping farmland

    ZENG Weiai(1); YANG Zhaoyue(2); GU Yabing(2); XIE Pengfei(1); CAI Hailin(1); YIN Huaqun(2)
    (1) Changsha Tobacco Company of Hunan Province, Changsha, China; (2) School of Minerals Processing and Bioengineering, Central South University, Changsha, China
    The objective of this study was to explore the relationship between the soil bacterial community (i.e. structure and molecular ecological network) and environmental evolution in long-term continuous cropping field. In this study, soil samples were...
  7. CORESTA Congress, Online, 2022, Agronomy/Phytopathology Groups, AP 07

    Optimization of prediction model for tobacco leaf dehydration rate during intensive curing process based on machine learning

    DU Haina(1,2); MENG Lingfeng(1); WANG Songfeng(1); ZHANG Binghui(3); HE Dengfeng(4); XUN Xiaohong(5); GAO Jun(6); WANG Aihua(1); LIU Hao(1,2); LI Zengsheng(1,2); SUN Fushan(1)
    (1) Institute of Tobacco Research of CAAS, Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture, Qingdao, China; (2) Graduate School of Chinese Academy of Agricultural Sciences (CAAS), Beijing, China; (3) CNTC FuJian Corporation, FuZhou, China; (4) CNTC ShanXi Corporation, XiAn, China; (5) Chongqing Tobacco Science Research Institute, Chongqing, China; (6) Liangshan Tobacco Company of Sichuan Province, Xichang, Sichuan, China
    The objective of this study was to quantify the apparent characteristic values of tobacco leaves during the intensive curing process, to grasp the law of changes in water loss, and to achieve precise control of curing process parameters during the...
  8. CORESTA Congress, Online, 2022, Agronomy/Phytopathology Groups, AP 09

    Effect of ridging and hilling on dark tobacco standability and sucker control

    BAILEY W.A.(1); RODGERS J.C.(1); RICHMOND M.D.(2); ELLIS R.(2)
    (1) University of Kentucky, Research & Education Center, Princeton, KY, U.S.A.; (2) University of Tennessee, Highland Rim AgResearch & Education Center, Springfield, TN, U.S.A.
    Sucker control practices for dark tobacco are done primarily with contact and local systemic agrochemicals. These are applied as labor-intensive, manual stalk-rundown applications with droplines due to the tendency of dark tobacco to have crooked...
  9. CORESTA Congress, Online, 2022, Agronomy/Phytopathology Groups, AP 10

    Field performance of fewer sucker variety in production area of Japan

    TAGA T.; NAKAMURA T.; NARAGINO T.
    Leaf Tobacco Research Center, R&D Group, Japan Tobacco Inc., Oyama, Tochigi, Japan
    Sucker control is a key process for tobacco production because it affects yield and quality. In general, sucker growth is suppressed by using a suckercide and the remaining suckers are removed by hand. However, such sucker management is a tough...
  10. CORESTA Congress, Online, 2022, Agronomy/Phytopathology Groups, AP 11

    Evaluations of modern spray nozzle technology for maleic hydrazide application

    VANN M.C.(1); ROUSSOS R.N.J.(1); ELLINGTON G.(2); CAHOON C.W.(1); GANNON T.(1)
    (1) Department of Crop & Soil Sciences, North Carolina State University, Raleigh, NC, U.S.A.; (2) Department of Biological & Agricultural Engineering, North Carolina State University, Raleigh, NC, U.S.A.
    Maleic hydrazide (MH) remains a critical component of sucker control programs in US tobacco production systems. However, MH residues remain a strong critique of tobacco sourced from the region. The purpose of our research was to evaluate medium and...