Relative performance of cassava (Manihot esculenta Crantz) on the upland in Sierra Leone and Guinea

Pages 322-330

E.S. Bah, M.T. Dahniya, J.B. George & A. Jalloh


The performance of five cassava (Manihot esculenta Crantz) clones (four improved and one local) was evaluated at Foulaya in Guinea and Njala in Sierra Leone during the 1993/94 cropping season. The major objective of the study was to compare the relative performance of the cassava clones in the two locations which are the cassava breeding centers in the two countries. The results revealed that all the varieties performed better at Foulaya in Guinea than at Njala in Sierra Leone. The plants produced higher number of roots, heavier roots and higher root yield in Guinea The improved varieties significantly outyielded the local varieties. There was no significant interaction between location and genotypes. Since the two locations represent the centers of cassava breeding in the two countries, adaptability of the genotypes developed in one location could not be a problem in the other. This is likely to facilitate the exchange of elite materials and broaden the cassava genetic base in the two countries.

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