• Contact Us
    • Send Feedback
    • Login
    View Item 
    •   Home
    • Journal and Journal Articles
    • Journal and Journal Articles
    • View Item
    •   Home
    • Journal and Journal Articles
    • Journal and Journal Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    Whole Repository
    CollectionsIssue DateRegionCountryHubAffiliationAuthorsTitlesSubject
    This Sub-collection
    Issue DateRegionCountryHubAffiliationAuthorsTitlesSubject

    My Account

    Login

    Welcome to the International Institute of Tropical Agriculture Research Repository

    What would you like to view today?

    Effects of wetness duration and grain development stages on sorghum grain mold infection

    Thumbnail
    View/Open
    Navi, mold wetness duration plant disease paper.pdf (668.5Kb)
    Date
    2005
    Author
    Navi, S.
    Bandyopadhyay, Ranajit
    Reddy, R.
    Thakur, R.
    Yang, X.
    Type
    Journal Article
    Metadata
    Show full item record
    Abstract/Description
    Grain mold caused by a complex of fungi is an economically important disease of sorghum worldwide. Little is known about the epidemiology of sorghum grain mold, which is essential for its management. Studies were conducted to quantify the effects of wetness duration on grain mold development under controlled conditions at ICRISAT. Six major sorghum grain mold fungi determined from previous field experiments, Curvularia lunata, Cladosporium oxysporum, Bi-polaris australiensis, Fusarium moniliforme, F. pallidoroseum, and Phoma sorghina, were used. Panicles of a pot-grown mold-susceptible sorghum line, IS 10513, were spray inoculated with each fungus at five growth stages: flowering (F), milk (M), soft dough (S), hard dough (H), and physiological maturity (P), and were incubated in dew chambers for 0, 16, 24, 40, 48, and 72 h. Then, the plants were placed on greenhouse benches at 25 ± 1°C to allow grain mold infection to develop. Eight days after treatments, grains from F, M, and S stages were plated onto potato dextrose agar, while those from H and P stages were incubated in blotter paper humid chambersat 28 ± 1°C. Fungal colonization of grains were scored after 7 days. Results indicated a significant (P < 0.01) correlation between wetness duration and grain mold development at different stages of inoculation. Generally, with increasing wetness duration, there was an increase in grain infection by all six fungi. However, infection frequency varied among fungi and grain development stages, indicating that individual fungi might have different windows for maximum infec-tion during the grain development stages.
    http://dx.doi.org/10.1094/PD-89-0872
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/3276
    Digital Object Identifier (DOI)
    http://dx.doi.org/10.1094/PD-89-0872
    IITA Subjects
    Grain Legumes; Plant Diseases; Genetic Improvement
    Agrovoc Terms
    Growth Stages; Infection Frequency; Major Mold Fungi
    Regions
    Asia; South Asia
    Countries
    India
    Collections
    • Journal and Journal Articles4835
    copyright © 2019  IITASpace. All rights reserved.
    IITA | Open Access Repository