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  1. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 01

    Flue-cured tobacco response to sub-lethal rates of glufosinate

    VANN M.C.(1); JORDAN D.L.(1); FISHER L.R.(2)
    (1) North Carolina State University, Department of Crop & Soil Sciences, Raleigh, NC, U.S.A.; (2) NC Agriculture Research Service, North Carolina State University, Raleigh, NC, U.S.A.
    Glufosinate is a broad-spectrum, contact herbicide that is currently applied to genetically engineered row crops that tolerate exposure to the chemical, such as cotton (Gossypium hirsutum), maize (Zea mays), and soybean (Glycine max). Flue-cured...
  2. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 03

    Diagnosis and amelioration of secondary and micronutrient deficiency on productivity and quality of flue-cured tobacco in Northern light soil region of India

    UMA MAHESH M.N.V.A.; REDDY B.S.R.; KALYAN RAMI REDDY L.; G. KRISHNA KUMAR; SRINIVAS P.
    Research Department, ITC - ABD, Rajahmundry, East Godavari (Dist.), Andhra Pradesh, India
    Flue-cured tobacco in northern light soils (NLS) in Andhra Pradesh state is grown in 17,000 ha under irrigated conditions. This tobacco is grown on sandy/sandy loam soils and, due to continuous mono cropping of flue-cured tobacco, it started...
  3. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 04

    Experiences in evaluation of boron needs in North Carolina flue-cured tobacco production: a summary of plant tissue sufficiency data and impacts on yield and quality

    HARDY D.(1); VANN M.C.(2); JERNIGAN C.(3); McGINNIS M.(1); HICKS K.(1)
    (1) Agronomic Division, North Carolina Dept. of Agriculture and Consumer Services, NC, U.S.A.; (2) Crop and Soil Science Department, North Carolina State University, NC, U.S.A.; (3) Helena Chemical Co., U.S.A.
    Boron (B), an essential micronutrient for optimum plant growth, is required in trace amounts (<1.1 kg B ha-1) by flue-cured tobacco. In past decades, boron deficiency in North Carolina has not been prevalent. However, recently, its deficiency has...
  4. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 05

    Regulatory effects of topping on K+ flux and gene expression in tobacco roots

    LIANG Taibo(1); GUO Yadi(1); MENG Xiangyu(2); DAI Huaxin(1); ZHAI Zhen(1); WANG Aiguo(1); ZHANG Yanling(1)
    (1) Zhengzhou Tobacco Research of CNTC, Zhengzhou, China; (2) Golden Leaf Manufacturing Center, China Tobacco Henan Industrial Co., Ltd, Zhengzhou, China
    Topping is an important agronomic measure in tobacco field production, but it is a serious artificial injury to tobacco plants and will cause serious potassium loss. However, the variations of K+ flux in tobacco roots after topping and the...
  5. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 06

    Auxin herbicide exposure: comparisons of 2,4-D and dicamba drift to flue-cured tobacco

    VANN M.C.(1); JORDAN D.L.(1); FISHER L.R.(2)
    (1) North Carolina State University, Department of Crop & Soil Sciences, Raleigh, NC, U.S.A.; (2) NC Agriculture Research Service, North Carolina State University, Raleigh, NC, U.S.A.
    Auxin herbicide application has increased in North Carolina due to the commercialization of 2,4-D and dicamba tolerant crops. Flue-cured tobacco is extremely sensitive to both herbicides, yet is commonly grown in close proximity to genetically...
  6. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 07

    Nematodes: first steps toward the identification of markers related to Rk2 resistance gene against M. arenaria and M. javanica

    JULIO E.(1); COTUCHEAU J.(1); VOLPATTI R.(1); TRIVILIN A.P.(2); DECORPS C.(1); ENDER M.(2); DORLHAC DE BORNE F.(1)
    (1) Imperial Brands, Leaf Research, Bergerac, France; (2) Universal Leaf Tabacos Ltda, Santa Cruz do Sul, RS, Brazil
    Plant parasitic nematodes belonging to the genus Meloidogyne are the most economically harmful nematodes worldwide with the widest host range. In the seventies, commercial tobacco cultivars with the Rk1 gene, which imparts resistance to Meloidogyne...
  7. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 08

    An update to the molecular markers used for rapid screening of pathogen resistant plants

    JULIO E.(1); COTUCHEAU J.(1); VOLPATTI R.(1); DECORPS C.(1); VERRON T.(2); CAHOURS X.(2); DORLHAC DE BORNE F.(1)
    (1) Imperial Brands, Leaf Research, Bergerac, France; (2) Imperial Brands, Scientific Research, Paris, France
    Due to cheaper costs associated with next generation sequencing (NGS) technologies, the availability of transcriptomic and genomic information has enabled the characterization of new molecular markers related to important agronomic traits. Today,...
  8. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 09

    A novel NAC transcription factor, NtNAC060 enhances the bacterial wilt resistance and salt stress tolerance in tobacco

    LI Xiaoxu(1); PU Wenxuan(1); YI Jianhua(1); GUO Yongfeng(2); GAO Junping(1); WANG Dong(1)
    (1) China Tobacco Hunan Industrial Co., Ltd, Changsha, China; (2) Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
    Bacterial wilt, as a bacterial disease, seriously impacts the growth of tobacco. The NAC transcription factors comprise one of the largest transcription factor families in plants, which play an important role in stress responses and bacterial disease...
  9. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 10

    Genetic analyses of a major partial disease resistance quantitative trait locus (QTL) in tobacco

    SHI Rui(1); JIN Jing(2); SHEW D.(2); LEWIS R.S.(1)
    (1) Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC, U.S.A.; (2) Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, U.S.A.
    Partial resistance of tobacco to plant pathogens controlled by quantitative trait locus (QTL) is desirable in cultivar development programs because of its increased durability. However, mechanisms underlying this type of resistance are difficult to...
  10. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 11

    Agronomic performance of Polalta-derived breeding lines resistant to tomato spotted wilt virus

    KORBECKA-GLINKA G.(1); TROJAK-GOLUCH A.(1); BAKAHER N.(2); GOEPFERT S.(2)
    (1) Institute of Soil Science and Plant Cultivation (IUNG) - State Research Institute, Puławy, Poland - gkorbecka@iung.pulawy.pl; (2) Philip Morris Products S.A., PMI R&D, Neuchâtel, Switzerland
    Tomato spotted wilt virus (TSWV) is one of the most important pathogens threatening tobacco cultivation. The dark-cured cultivar Polalta is TSWV-resistant, but it cannot be easily incorporated into breeding programs, because its hybridization with...