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187 results

  1. 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 ...
  2. CORESTA Meeting, Agronomy/Phytopathology, 2017, Santa Cruz do Sul, AP 17

    Effect of bottom leaf removal and fertiliser rates on the yield and quality of flue-cured tobacco in Zimbabwe

    KOGA C.; RUKUNI D.
    Tobacco Research Board, Harare, Zimbabwe
    The leaf position on a tobacco stalk determines leaf quality. Leaf quality is lowest for the bottom prime and lug grades, and is highest for the leaf and tip grades at the upper part of the plant. Experiments on removal of lower leaves to eliminate prime ...
  3. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups (Workshop), APW 04

    Translating research output into the grower's reality: tobacco training and extension for smallholder growers in Zimbabwe

    DIMBI S.; KHUDU G.
    Tobacco Research Board, Harare, Zimbabwe
    The Tobacco Research Board (TRB) has the mandate to carry out all tobacco research in Zimbabwe. The main objective of the research programme is to enable tobacco growers to maximise value from responsible and sustainable tobacco production practices. ...
  4. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, AP 02

    Characterisation of root-knot nematode (Meloidogyne javanica) resistance mechanism in tobacco

    MAKUNDE P.T.; MAHERE T.S.; DIMBI S.; GARWE D.
    Tobacco Research Board, Harare, Zimbabwe
    Resistance to root-knot nematode (Meloidogyne spp) has been identified, incorporated, and deployed in Kutsaga commercial cultivars of tobacco, Nicotiana tabacum. These cultivars have varying resistance levels to root-knot nematode. The classification of ...
  5. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, AP 04

    Kutsaga releases a Katambora Rhodes grass variety (G HR 1) for nematode management under tighter rotations

    SHAVA J.G.; MAKUNDE P.T.; MAGAMA F.; SHAMUDZARIRA M.
    Tobacco Research Board, Harare, Zimbabwe
    Although the use of resistant varieties is effective, Katambora Rhodes grass (Chloris gayana) has been used for a long time in rotations not only to suppress nematodes but also to improve the soil structure in tobacco farming systems. This grass was ...
  6. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, AP 08

    Pythium myriotylum, the dominant Pythium species associated with root rot of tobacco seedlings produced using the float tray system in Zimbabwe

    MUFUNDA F.; MUZHINJI N.; SIGOBODHLA T.; KASHANGURA C.
    Tobacco Research Board, Harare, Zimbabwe
    Pythium root rot caused by the oomycete Pythium species is the most serious disease affecting tobacco seedlings produced under the hydroponic float tray system in Zimbabwe. Currently, knowledge of the occurrence and genetic diversity of the Pythium ...