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    Effectiveness of native West African arbuscular mycorrhizal fungi in protecting vegetable crops against root-knot nematodes

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    S11ArtAffokponEffectivenessInthomDev.pdf (426.6Kb)
    Date
    2011-02
    Author
    Affokpon, A.
    Coyne, D.L.
    Lawouin, L.
    Tossou, C.
    Agbede, R.D.
    Coosemans, J.
    Type
    Journal Article
    Target Audience
    Scientists
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    Abstract/Description
    Twenty strains of arbuscular mycorrhizal fungi (AMF), native to West Africa, and three commercial AMF, were evaluated for their protective effect against root-knot nematodes, Meloidogyne spp., in pots and field experiments in Benin. In pots, these strains were assessed in sterilized soil following inoculation of nematodes and in nonsterilized soil naturally infested with nematodes using tomato. The four strains showing greatest potential in suppressing nematode development were further assessed in the field with a relatively high natural infestation level of nematodes (155 per 100 cm3 soil) over a tomato–carrot double cropping. In the pot experiments, most native strains provided significant suppression of nematode multiplication and root galling, but in most cases the level of nematode control depends on either sterilized or non-sterilized soils. In the field experiments, application of AMF mostly resulted in significant suppression of nematode multiplication and root galling damage on both crops indicating that the AMF persists and remains protective against root-knot nematodes over two crop cycles. Field application of AMF increased tomato yields by 26% and carrot yields by over 300% compared with the non-AMF control treatments. This study demonstrates for the first time, the protective effect of indigenous West African AMF against root-knot nematodes on vegetables. The potential benefits of developing nonpesticide AMF-based pest management options for the intensive urban vegetable systems are evident.
    http://dx.doi.org/10.1007/s00374-010-0525-1
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    Permanent link to this item
    https://hdl.handle.net/20.500.12478/1884
    Digital Object Identifier (DOI)
    http://dx.doi.org/10.1007/s00374-010-0525-1
    IITA Subjects
    Biodiversity; Disease Control; Plant Diseases
    Agrovoc Terms
    Beneficial Organisms; Biodiversity; Biological Control; Sustainable Agriculture; Meloidogyne Spp.; Root-Knot Nematodes; Arbuscular Mycorrhizal Fungi
    Regions
    Africa; West Africa
    Countries
    Benin
    Journals
    Biology and Fertility of Soils
    Collections
    • Journal and Journal Articles5283
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