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    Effect of harvest date on the dormancy period of yam (Dioscorea rotundata)

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    Journal Article (249.6Kb)
    Date
    2003-06
    Author
    Swannell, M.C.
    Wheeler, T.R.
    Asiedu, R.
    Craufurd, P.Q.
    Type
    Journal Article
    Review Status
    Peer Review
    Metadata
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    Abstract
    Tuber dormancy enables yams to survive in the ground during the dry season and post‐harvest storage. Three clones of Dioscorea rotundata were harvested after five intervals and then stored in a cooler (20.6°C) or at ambient temperature (27.8°C). The time from harvest to sprouting was shorter as harvest was delayed. The period from sowing to sprouting for each clone was similar for tubers harvested from 140 days after planting, but tubers harvested earlier took longer to sprout. The cooler temperature delayed sprouting. Tubers of two clones sprouted after only 70 days of crop growth. If the dormancy period of these young tubers can be broken, the generation time of yam crop improvement programmes could be considerably reduced.
    https://dx.doi.org/10.1002/ts.98
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/6714
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1002/ts.98
    IITA Subjects
    Yam
    Agrovoc Terms
    Yams; Dormancy; Storage; Harvesting
    Journals
    Tropical Science
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    • Journal and Journal Articles4136
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