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    Influence of exogenous gibberellins inhibitors on tuber sprouting in yam

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    S03ArtShiwachiInfluenceNothomNodev.PDF (85.66Kb)
    Date
    2003-09
    Author
    Shiwachi, H.
    Ayankanmi, T.G.
    Asiedu, Robert
    Onjo, M.
    Type
    Journal Article
    Journal Article
    Metadata
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    Abstract/Description
    To induce sprouting two gibberellin inhibitors, uniconazole-P (UP) and prohexadione-calcium (PC), were applied to foliage of white Guinea yam (Dioscorea rotundata) and water yam (D. alata) 30 days before harvest or to tubers at harvest. The tuber sprouting period was shortened by about 35 days in D. alata TDa 95/00328 in response to UP and PC, and TDa 92-2 in response to PC, but not in others through foliage treatment. Sprouting of tubers was promoted in D. rotundata TDr 99-12 and D. alata TDa 99/00049 and TDa 291 when they were soaked in UP or PC, but the others had a limited response at harvest. Sprouting of TDa 99/00049 tubers started 70 days earlier and the periods of sprouting were 35 to 42 days shorter in response to the UP and PC. Foliar application was more effective in promoting tuber sprouting than tuber soaking at harvest in TDa 92-2 and TDr 93-31, and the reverse was true for TDr 99-12 and TDa 291. The responses of yam varieties to UP and PC seem to vary depending on the stage of dormancy in their tubers.
    https://doi.org/10.1002/ts.107
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/4163
    Digital Object Identifier (DOI)
    https://doi.org/10.1002/ts.107
    IITA Subjects
    Yam; Plant Breeding
    Agrovoc Terms
    Yams; Dioscorea Rotundata; Dioscorea Alata
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Collections
    • Journal and Journal Articles4835
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