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    Utilization of the potentials of selected microorganisms as biocontrol and biofertilizer for enhanced crop improvement

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    Authors
    Oyekanmi, E.O.
    Coyne, D.L.
    Fawole, B.
    Date
    2008
    Language
    en
    Type
    Journal Article
    Review status
    Peer Review
    Accessibility
    Limited Access
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    Citation
    Oyekanmi, E.O., Coyne, D.L. & Fawole, B. (2008). Utilization of the potentials of selected microorganisms as biocontrol and biofertilizer for enhanced crop improvement. Journal of Biological Sciences, 8(4), 746-752.
    Permanent link to cite or share this item: http://hdl.handle.net/10568/90927
    DOI: https://dx.doi.org/10.3923/jbs.2008.746.752
    Abstract/Description
    Some selected microorganisms isolated from rhizosphere of crops, were screened for their abilities to enhance crop growth and suppress plant parasitic nematodes; in screenhouse experiments. Two promising hybrids of soybean genotypes: TGx 1448-2E (medium duration) and TGx 1485-1D (early maturing) and a high yielding hybrid of maize genotype Oba Super 1 were used. Microorganisms assessed included the fungi: Trichoderma pseudokoningii, Trichoderma viride, Paecilomyces lilacinus, Aspergillus niger, Glomus mosseae and the rhizobacteria Pseudomonas fluorescens and Pseudomonas putida. One thousand juveniles of Meloidogyne incognita were applied to soybean, while five thousand Pratylenchus zeae (juveniles and adults) were applied to maize. Fungal spores and rhizobacteria cells approximately 2.5x106 mL-1 concentration were applied per plant, for maize experiment. For soybean experiment, Bradyrhizobium japonicum (106 cells), Trichoderma pseudokoningii (6.8x106 spores) and G. mosseae (200 spores) were inoculated per plant. The effect of microorganism`s application was compared with a nematicide (carbofuran) treatment, untreated control and a nematode only control. The parameters measured were nematode density, root damage due to plant parasitic nematode infection, relative leaf chlorophyll content and plant growth parameters. The inoculated beneficial microorganisms in most cases significantly (p≤0.05) reduced the nematode density across the treatments in test crops by up to 79.6% and improved plant growth by up to 46.0%, when treatments performances were compared across treatments. Most of the beneficial microorganisms assessed have prospects of enhancing nematode management through nematode density reduction and improving crop production.
    CGIAR Affiliations
    Roots, Tubers and Bananas
    AGROVOC Keywords
    MICRO ORGANISMS; RHIZOBACTERIA; TRICHODERMA PSEUDOKONING; NEMATODE DENSITY; NEMATODE-ANTAGONISTIC FUNGI; BRADYRHIZOBIUM JAPONICUM; PSEUDOMONAS FLUORESCENS
    Subjects
    PLANT PRODUCTION; PESTS OF PLANTS; PLANT DISEASES; PLANT BREEDING; PLANT GENETIC RESOURCES; DISEASE CONTROL; FARM MANAGEMENT; FOOD SECURITY; PLANT HEALTH; SOIL FERTILITY; SOIL INFORMATION
    Countries
    NIGERIA
    Regions
    AFRICA; WEST AFRICA
    Investors/sponsors
    International Institute of Tropical Agriculture
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    • IITA Journal Articles [1807]

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