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International Institute of Tropical AgricultureAsiedu, RobertBramel-Cox, P.J.Chikoye, D.Manyong, Victor M.López, K.[R4D Review 3]R4D Review 3

Multilocational trials were conducted in several agroecological zones in West Africa to assess the magnitude of genotype x environment (G x E) interaction and to identify stable varieties which could be used in breeding programs in the region. The reaction of the varieties to major cassava diseas...


Otoo, J.Dixon, A.Asiedu, RobertOkeke, J.Maroya, N.Tougnon, K.Okoli, O.Tetteh, J.Hahn, S.[Genotype x environment interaction studies with cassava]Genotype x environment interaction studies with cassava

Most cassava (Manihot esculenta Crantz) improvement programs depend on the range of variability available within the cultigen for breeding varieties adapted to target environments. Efforts by some programs to introduce additional variability from wild Manihot species into cassava have led to impr...


Asiedu, RobertHahn, S.K.Bai, K.V.Dixon, A.[Interspecific hybridization in the genus Manihot progress and prospects]Interspecific hybridization in the genus Manihot progress and prospects

Multilocational trials were conducted in several agroecological zones in West Africa to assess the magnitude of genotype x environment (G x E) interaction and to identify stable varieties which could be used in breeding programs in the region. The reaction of the varieties to major cassava diseas...


Otoo, J.Dixon, A.Asiedu, RobertOkeke, J.E.Maroya, N.Tougnon, K.Okoli, O.Tetteh, J.P.Hahn, S.K.[Genotype environment interaction studies with cassava]Genotype environment interaction studies with cassava

An agroecologically-based germplasm enhancement strategy to further broaden the genetic base of cassava in selected ecologies of Africa was initiated by CIAT and IITA in 1990. Crosses are being made at CIAT, in Colombia, using parents adapted to four different agroecologies of South America with ...


Porto, M.C.Asiedu, RobertDixon, A.Hahn, S.K.[An agroecologically oriented introduction of cassava germplasm from Latin America into Africa]An agroecologically oriented introduction of cassava germplasm from Latin America into Africa

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

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