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For the purpose of constructing yam cDNA libraries, attempts to isolate high quality RNA using several previously reported protocols were unsuccessful. Therefore a protocol was standardized for yam total RNA isolation by using guanidium buffer at the Department of Biology, Virginia Sate Universit...


Narina, S.S.Mohammed, I.Asiedu, RobertMignouna, H.D.[A standardized RNA isolation protocol for yam (Dioscorea alata L) cDNA library construction]A standardized RNA isolation protocol for yam (Dioscorea alata L) cDNA library construction

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
Akano, A.O.Atiri, G.Ng, S.Y.C.Asiedu, Robert[Effect of African cassava mosaic disease on growth and yield components of virustested cassava genotypes derived from meristem culture in early and late planting periods in three agroecologies of Nigeria]Effect of African cassava mosaic disease on growth and yield components of virustested cassava genotypes derived from meristem culture in early and late planting periods in three agroecologies of Nigeria

The response of yam (Dioscorea) cultivars to artificial and natural infections with minisett rot pathogens was investigated. None of the 20 yam cultivars were resistant to Sclerotium rolfsii [Corticium rolfsii] or Trichoderma longibrachyatum. Cultivars TDa 84/093, 85/236, 85/257, TDr 608, 745, 81...


Osai, E.O.Ikotun, T.Asiedu, RobertHahn, S.K.[Susceptibility of yam cultivars to minisett rot pathogens]Susceptibility of yam cultivars to minisett rot pathogens

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