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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...


Shiwachi, H.Ayankanmi, T.G.Asiedu, RobertOnjo, M.[Influence of exogenous gibberellins inhibitors on tuber sprouting in yam]Influence of exogenous gibberellins inhibitors on tuber sprouting in yam

Sixty-day-old plants of white Guinea yam (Dioscorea rotundata), water yam (D. alata) and yellow Guinea yam (D. cayenensis) were exposed to 10 h day lengths (short days) for 15 and 30 days. Short-day treatment applied at the early growth stage of yams promoted the enlargment of tubers, but the res...


Shiwachi, H.Ayankanmi, T.G.Asiedu, Robert[Effect of day length on the development of tubers in yams (Dioscorea spp.)]Effect of day length on the development of tubers in yams (Dioscorea spp.)

Seed tuber production of Dioscorea rotundata using the minisett technique was tested on-farm and on-station in different agro-ecological zones in Nigeria. A lower sprouting rate of minisetts was observed in the southern Guinea savanna than in the tropical forest zone. Sprouting and tuber yield in...


Ayankanmi, T.G.Shiwachi, H.Asiedu, Robert[Sprouting and yield of yam (Diocorea spp.) minisetts in relation to sett size, soil moisture and agroecology]Sprouting and yield of yam (Diocorea spp.) minisetts in relation to sett size, soil moisture and agroecology

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