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In vitro culture media capable of regenerating moderate to high shoots and/or plantlets from meristems of two yam species – Dioscorea rotundata and Dioscorea alata within comparable duration of 10 weeks as commonly obtained in other monocots and root and tuber crops were investigated. The study c...


Adeniyi, O.J.Adetimirin, V.O.Ingelbrecht, I.L.Asiedu, Robert[Shoot and plantlet regeneration from meristems of Dioscorea rotundata poir and Dioscorea alata L.]Shoot and plantlet regeneration from meristems of Dioscorea rotundata poir and Dioscorea alata L.

Dioscorea alata L. is a highly important crop, widely distributed in the humid and semi-humid tropics. Flow cytometry was used to determine the ploidy levels of 74 D. alata genotypes collected mainly from West African countries. Sixty three of the genotypes were found to be tetraploid, one was he...


Obidiegwu, J.E.Rodríguez, E.Ene-Obong, E.E.Loureiro, J.Muoneke, C.Santos, C.Kolesnikova-Allen, M.Asiedu, Robert[Ploidy levels of Dioscorea alata L. germplasm determined by flow cytometry]Ploidy levels of Dioscorea alata L. germplasm determined by flow cytometry

Use of genetic resistance is the most practical and economic way to manage major diseases of yams. In a search for sources of resistance, 40 water yam (Dioscorea alata L.) accessions from Benin, Ghana, Nigeria and Puerto Rico were screened under natural disease infection conditions in Ibadan, Nig...


Egesi, Chiedozie N.Odu, B.Ogunyemi, S.Asiedu, RobertHughes, J.[Evaluation of water yam (Dioscorea alata L.) germplasm for reaction to yam anthracnose and virus diseases and their effect on yield]Evaluation of water yam (Dioscorea alata L.) germplasm for reaction to yam anthracnose and virus diseases and their effect on yield

The Guinea yams, Dioscorea cayenensis Lam. and D. rotundata Poir. (D. cayenensis–D. rotundata complex), represent a highly importantcrop, widely distributed in the humid and semi-humidtropics. The ploidy levels of 170 accessions of the core set of Guinea yams from West African coun...


Obidiegwu, J.E.Loureiro, J.Ene-Obong, E.E.Rodríguez, E.Kolesnikova-Allen, M.Santos, C.Muoneke, C.Asiedu, Robert[Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set]Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set

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