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    Yam dormancy: potential mechanisms for its manipulation

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    Authors
    Barker, D.J.
    Keatinge, J.D.H.
    Asiedu, Robert
    Date Issued
    1999
    Language
    en
    Type
    Journal Article
    Review status
    Peer Review
    Accessibility
    Limited Access
    Metadata
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    Citation
    Barker, D.J., Keatinge, J.D.H. & Asiedu, R. (1999). Yam dormancy: potential mechanisms for its manipulation. Tropical Science, 39(3), 168-177.
    Permanent link to cite or share this item: https://hdl.handle.net/10568/96006
    Abstract/Description
    Tuber dormancy is of major importance in yam production, but the lack of a method to consistently break dormancy restricts the rate at which new clones can be multiplied to release to farmers. Much of the work on yam tuber dormancy was small scale, using only one or two clones and a few tubers. Often, the effects of a treatment on dormancy were seen as a side issue, and results were essentially anecdotal. Many chemicals were used in attempts to manipulate dormancy and although some success was achieved using gibberellic acid, this large amount of work yielded few future leads. Similarly, physical methods might be able to break yam dormancy but these studies have been unsystematic and inconsistent. Appropriate research directions are needed if yam breeding is to make progress and keep pace with food demands.
    AGROVOC Keywords
    yams; dioscorea esculenta; dormancy; chemical properties; yam breeding
    Subjects
    YAM; FOOD SYSTEMS; PLANT BREEDING
    Regions
    Africa; Western Africa
    Organizations Affiliated to the Authors
    University of Reading; International Institute of Tropical Agriculture
    Collections
    • IITA Journal Articles [4964]

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