a1 Agricultural Research Council, National Council for Research, PO Box 6096, Khartoum, Sudan
Trials were made of the performance of batches of forage sorghum and maize, sown at different times of year. The optimum sowing periods of sorghum variety Abu Sabeen and maize variety 113 were found to be February to October and November to January respectively. Of the various climatic factors considered in this study, mean daily temperature was of greatest importance in affecting yield. The overall performance of sorghum was superior to that of maize, probably because of its relatively higher salt tolerance.
(Accepted May 02 1980)
p1 Present address: Agric. Res. Corporation, Wad Medani, Sudan.