Search Results

196 results

  1. CORESTA Meeting, Agronomy/Phytopathology, 2019, Victoria Falls, AP 14

    Field tests of loss-of-function tobacco lines of eIF(iso)4E for resistance to tobacco bushy top disease and agronomic traits

    KOGA K.(1); SHINJO A.(1); MAINJENI C.E.D.(2); MSANGOSOKO K.R.(2); UDAGAWA H.(1); TAKAKURA Y.(1)
    (1) Japan Tobacco Inc., Leaf Tobacco Research Center, Oyama, Tochigi, Japan; (2) Agricultural Research and Extension Trust, Department of Research and Technical Services, Lilongwe, Malawi
    Tobacco bushy top disease (TBTD) is one of the serious diseases affecting tobacco (Nicotiana tabacum L.) production in African countries such as Malawi, Zambia, Tanzania and Ethiopia. This disease is caused by a mixed infection of tobacco bushy top virus ...
  2. CORESTA Meeting, Agronomy/Phytopathology, 2019, Victoria Falls, AP 38

    Metabolic profiling of mutant tobaccos with distinctive aroma based on gas chromatography-mass spectrometry and multivariate analysis

    CAO Jianmin; XU Xiaoling; LIU Guanshan; CAO Pengyun; LIN Yingnan
    Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, P.R. China; Graduate School of CAAS, Beijing 100081, P.R. China
    A large number of mutant materials were obtained by chemical mutagenesis of tobacco with ethyl methylsulfonate (EMS) and new materials with distinctive aroma characteristics were achieved by field screening, identification and sensory evaluation. To ...
  3. CORESTA Meeting, Agronomy/Phytopathology, 2019, Victoria Falls, APPOST 08

    Characterisation and genetic mapping of a novel premature leaf senescence mutant yellow leaf 1 in common tobacco (Nicotiana tabacum L.)

    GAO Xiaoming; WU Xinru; SUN Yuhe; LIU Guanshan; ZHANG Zengling; CHAO Jiangtao; LI Zhiyuan; GUO Yongfeng
    Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, P.R. China
    Ripe (yellowing) leaves are harvested and cured in tobacco farming. Leaf senescence therefore has a great impact on yield and quality of tobacco. However, little is known about the molecular mechanism of tobacco leaf senescence regulation. The objective ...
  4. CORESTA Meeting, Agronomy/Phytopathology, 2019, Victoria Falls, APPOST 13

    Agronomic and qualitative performance of some experimental Burley hybrids in Malawi

    CHAMANGO A.M.Z.; SIBANDE L.A.G.O.; MATEWELE M.
    Agricultural Research and Extension Trust (ARET), Lilongwe, Malawi
    Malawi mainly depends on tobacco for forex generation, with Burley as a major contributor. However, the country has a limited choice of high yielding and disease resistant varieties against a plethora of disease constraints, particularly root-knot ...
  5. CORESTA Meeting, Agronomy/Phytopathology, 2019, Victoria Falls, APPOST 14

    Forestry sustainability in the tobacco sector in Malawi: a community concern requiring community approaches

    OFESI H.K.T.; LIVIMBO S.S.
    Agricultural Research and Extension Trust (ARET), Lilongwe, Malawi
    Tobacco farmers depend heavily on tree resources for poles and firewood used in curing. Malawi tobacco farmers predominantly grow Burley tobacco which requires the least amount of tree resources per unit volume in comparison to dark-fired and flue-cured ...
  6. CORESTA Meeting, Agronomy/Phytopathology, 2019, Victoria Falls, APPOST 16

    Effects of biochar and seaweed fertiliser on tobacco growth, soil properties and bacterial wilt occurrence

    ZHANG Guangyu(1); YOU Xiangwei(1); LIU Yuande(2); CHU Depeng(1); NIU Jijun(2); GAO Qiang(2); CHEN Qianru(1); LI Yiqiang(1); WEI Jianyu(3)
    (1) Tobacco Research Institute of CAAS, Qingdao, P.R. China; (2) Shandong Linyi Tobacco Company Ltd., Linyi, Shandong, P.R. China; (3) China Tobacco Guangxi Industrial Co., Ltd., Nanning, P.R. China
    Bacterial wilt of tobacco incited by Ralstonia solanacearum is prevalent worldwide and causes severe economic losses every year. Up until now there is no promising control method available against the disease. This study aimed to elucidate the effect of ...
  7. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 32

    Genome-wide identification and functional characterization of senescence-associated genes of the NAC transcription factor family in tobacco

    LI Wei; LI Xiaoxu; CHAO Jiangtao; ZHANG Zenglin; WANG Weifeng; GUO Yongfeng
    Tobacco Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Qingdao, Shandong, P.R. China
    The NAC family is one of the largest families of plant-specific transcription factors. NAC proteins play important regulatory roles in a variety of developmental and stress response processes in plants. Members of the NAC family transcription factors have ...
  8. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 39

    Effects of tobacco curing with flower buds in the same bulk-barn on the quality of flue-cured tobacco leaves

    SUN Fushan; ZHOU Ping; WANG Songfeng; ZI Yinyin; ZHENG Furui; GAO Xianhui; ZHANG Ye; LIU Yajun
    Tobacco Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Qingdao, Shandong, P.R. China
    In order to explore new technologies of tobacco curing and flavouring, tobacco leaves were flue-cured with different amounts of fresh tobacco flower buds placed in the curing barn and the results were compared with those of conventional tobacco curing. ...
  9. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, APPOST 11

    Field trials with low nicotine tobacco varieties developed by conventional breeding technique: first results

    MALPICA A.(1); EVANS W.(2); ARCHIBALD C.(3); SCOTT L.(4); GARWE D.(5); CHAMANGO A.M.Z.(6); DORLHAC de BORNE F.(7); COLARD S.(8)
    (1) Bergerac Seed and Breeding, Bergerac, France; (2) Imperial Tobacco South Africa Pvt. Ltd, Umhlanga, Durban, South Africa; (3) Alliance One International Services, Camberley, Surrey, U.K.; (4) Universal Leaf Tobacco Co., Richmond, VA, U.S.A.; (5) Tobacco Research Board (TRB), Harare, Zimbabwe; (6) Agricultural Research & Extension Trust (ARET), Lilongwe, Malawi; (7) Imperial Tobacco Limited, Bergerac, France; (8) SEITA - Imperial Brands plc, Paris, France
    In 2015, the World Health Organisation (WHO) Study Group on Tobacco Product Regulation (“TobReg”) issued an advisory note recommending a strategy of reducing nicotine in tobacco to substantially lower levels of 0.4 mg/g. In the U.S., the Food and Drug ...
  10. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, APPOST 12

    Degradable residues characterization and possible MRL setting for albendazole, flusilazole and imazalil in tobacco

    JIANG Huatao; YOU Xiangwei; SUI Chengcheng; ZHANG Guangyu; WANG Xiuguo; LI Yiqiang
    Tobacco Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Qingdao, Shandong, P.R. China
    A modified QuEChERS method combined liquid chromatography-tandem triple quadrupole mass spectrometry (HPLC-MS/MS) was developed for three novel pesticides, albendazole, flusilazole and imazalil, which are used for the control of tobacco leaf spot diseases ...