Table of Content(Volume 7 No.1:1-54.December 2009.ISSN 1118-2075)

1Genotype by environment (Gx E) interaction in cassava (manihot esculenta Crantz) in UgandaP.Ntawuruhunga, J.B.A Whyte, A.G.O.Dixon and P.R.Rubaihayo1
2Survey of Scutellonema bradys incidence on marketed yam (Dioscorea spp.) in BeninH. Baimey, D. Coyne and N. Labuschagne.8
3Yield respose of white yam affected by sources and rates of potassiumS.A. Boateng and S. Boadi17
4Overcoming the non - uniform, late, and low sprouting rates in yam minisetts by the use of milked settsJ.K. Okoro23
5Assessing the effectiveness of ionizing irradiation as a quarantine treatment for stored sweetpotato roots in GhanaV.Appiah, J. Nketsia-Tabiri, K.G. Montford and F.B. Apea-Bah27
6Morphological characterization of the national cassava (Manihot esculenta Crantz) collection in cote d' IvoireB. N'Zue, A. Sangare, P. Letourmy, G.P.Zohouri and P. Vernier32
7Comparative studies of four storage structures for yam in Niger State of NigeriaZ.D. Osunde, M.G. Yisa and A.M. El-Okene39
8Effect of three- year fallow with herbaceous cover legumes on soil fertility and sweetpotato production in south-eastern Nigeria.D.A. Okpara, J.E.G. Ikeorgu, J.C. Njoku and G. Tarawali47
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