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    High potassium, calcium and nitrogen application reduce susceptibility to banana Xanthomonas wilt caused by Xanthomonas campestris pv. musacearum

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    S13ArtAtimHighInthomDev.pdf (432.5Kb)
    Date
    2013-01
    Author
    Atim, M.
    Beed, Fen D.
    Tusiime, Geoffrey
    Tripathi, L.
    Asten, Piet J.A. van
    Type
    Journal Article
    Metadata
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    Abstract/Description
    The effect of exogenous applications of potassium (K), calcium (Ca), and nitrogen (N) on the susceptibility of four banana cultivars to Banana Xanthomonas wilt (BXW) was studied. Murashige and Skoog (MS) medium with normal concentrations of K at 783 mg/liter, Ca at 121 mg/liter, and N at 841 mg/liter was modified to contain various concentrations of K, Ca, and N. Each nutrient was varied singly, each with three replicate experiments. The concentrations were K at 78, 157, 391, 783, 1,565, and 3,913 mg/liter; Ca at 12, 24, 60, 121, 241, and 603 mg/liter; and N at 84, 168, 420, 841, and 1,682 mg/liter. Plantlets were generated in vitro on normal MS medium and later exposed to the nutrient concentrations for a total of 8 weeks. Thereafter, they were artificially inoculated with Xanthomonas campestris pv. musacearum using an insulin syringe. In each nutrient, plantlets exposed to higher nutrient concentrations significantly (P < 0.0001) accumulated more nutrient in their tissues compared with those exposed to lesser nutrient concentrations. Wilt incidences were significantly reduced, and incubation periods (time from inoculation to appearance of first disease symptoms) increased, with increasing nutrient application. The study lays a background for in vivo studies aimed at management of BXW using nutrients, such as fertilizer application.
    https://dx.doi.org/10.1094/PDIS-07-12-0646-RE
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/1061
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1094/PDIS-07-12-0646-RE
    IITA Subjects
    Banana
    Agrovoc Terms
    Bananas; Musaceae; Potassium
    Regions
    Africa South Of Sahara
    Countries
    Uganda
    Journals
    Plant Disease
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    • Journal and Journal Articles4835
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