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Mignouna, B.D.Kumar, P.L.Coyne, D.Bandyopadhyay, R.Ortega-Beltran, A.Bhattacharjee, R.De Koeyer, D.[Identifying and managing plant health risks for key African crops: yam, taro and cocoyam]Identifying and managing plant health risks for key African crops: yam, taro and cocoyam

Hermetic cold storage without previous drying (wet–cold storage) was experimented for the preservation of yam pollen grains. Pollens collected from white yam D. rotundata and a wild relative, D. praehensilis, were stored at -80, -20, 5, and 150C in sealed packs for 2 years. Pollen samples were dr...


Daniel, I.O.Ng, N.Q.Tayo, T.O.Togun, A.O.[Wet-cold preservation of West African yam (Dioscorea spp.) pollen]Wet-cold preservation of West African yam (Dioscorea spp.) pollen
Autor: Hahn, S.K.

Diverses es peces d'ignames sont cultlvees da ns la "zone de civilisation de l'igname" en Afriq ue oeci dentale. Que ce soit au champ ou en entrepot, l'igname est exposee a des maladies provoquees par des virus, bacteries, champignons et nematodes. II est possible de lutter contre ces maladies gr...


Hahn, S.K.[Lutte contre les maladies de ligname: Guide de recherche de lIita, No. 39]Lutte contre les maladies de ligname: Guide de recherche de lIita, No. 39

The yam breeding activities at IITA Abuja station involves hybridization to generate variability, seedling and tuber progeny generation at the screen house and in the field to select superior plants with trait of interest.


International Institute of Tropical Agriculture[Africa yam breeding for impact 2017]Africa yam breeding for impact 2017

This paper discusses the strategic use of existing genetic diversity in addressing the constraints faced by yam (Dioscorea sp.) production in Bénin, including pest and disease pressure, poor soil and changing climate. Participatory strategies that have been developed to preserve their diversity i...


Dansi, A.Asiedu, RobertVodouhe, R.S.Lusty, C.Hall, R.[Participatory strategies of conserving yam biodiversity in Benin]Participatory strategies of conserving yam biodiversity in Benin

Seed yam is costly, and can carry pests and diseases. To reduce costs and to manage seed health, in the 1970s, the Yam Minisett Technique (YMT) was developed, which involved cutting yams into small pieces to be used as seed. Few farmers adopted the technique, in part because of the high labor req...


Odu, B.O.Coyne, D.L.Kumar, P.L.[Adapting a yam seed technique to meet farmers’ criteria]Adapting a yam seed technique to meet farmers’ criteria

L'igname est une importante denree alimen• tajre surtout dans sa zone de production en Afrique occi• dentale. La production mondiale totale d'igname est d'environ 20 A 25 miIlions de tonnes par an et 70 % d. ce total provient du Nigeria. Bien que consideree comme une denree particulierement riche...


Hahn, S.Osiru, D.Akoroda, M.O.Otoo, J.[Production des ignames; role actuel et perspectives: Guide de recherche de lIita, No. 46 davenir]Production des ignames; role actuel et perspectives: Guide de recherche de lIita, No. 46 davenir
Autor: Zohouri, P.

Ce guide de formation presente les problems majeurs, qui font obstacle a l'intensification de l'igname en Afrique. Les plus graves connus, aussi bien au champ que Durant la conservation des tubercules, sont occasionnes par les nematodes (galles, boursouflures), les champignons (syndrome du Betris...


Zohouri, P.[Les maladies des plantes a racines et tubercules (igname et manioc); biologie, identification et lutte: Guide de recherche et de formation IDESSA, Prt 13]Les maladies des plantes a racines et tubercules (igname et manioc); biologie, identification et lutte: Guide de recherche et de formation IDESSA, Prt 13

Yam is an important food crop, especially in the ‘yam zone' of West Africa. Total world production is about 20-25 million ton per annum, some 70 per cent of it grown in Nigeria. Although regarded mainly as a source of carbohydrate, some species are nearly as rich in protein as rice or maize.


Hahn, S.K.Osiru, D.Otoo, J.Akoroda, M.O.[Production of yams: present role and future prospect]Production of yams: present role and future prospect

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