sub-Saharan Africa as a whole, per capital consumption of imported cereals grew at an annual rate of 3.9% from 1961-65 to 1984-88. Meanwhile, per capital consumption of traditional coarse grains, roots, and tubers declined (Figure 2). These trends are viewed with alarm by many policy makers, because increasing dependence on imported cereals not only uses valuable foreign exchange, but also is perceived as a threat to national food security. A few wealthier countries in Africa can afford commercial imports of cereals, but many others rely heavily on food aid. Despite obvious short-term benefits, food aid is undesirable in the long run whenever it depresses domestic food production incen- tives. The danger of depending heavily on food aid is heightened by the fact that major donors such as the USA and the European Com- munity recently have pledged to restrain the overproduction of cereal crops, especially wheat, which has made large amounts of food aid possible. Hardly anyone questions the need to revitalize food production in Africa as a first step toward stimu- lating economic growth. But how to increase food production is not always obvious, particularly in view of the large and widening gap be- tween the kinds of food that can be produced and the kinds of food that consumers prefer. Demand for wheat and rice is increasing throughout much of the continent, yet climatic and economic factors limit the production of these two crops. At the same time, consump- tion of millet, sorghum, roots, and tubers is declining, even though these crops are suited to local production conditions. That leaves maize. Maize produc- tion and consumption patterns vary greatly throughout sub-Saharan Africa. In large parts of eastern and southern Africa, maize is the principal staple food, produced and consumed by most farming house- holds. While relatively less impor- tant in western and central Africa, maize still provides a major source of calories, especially in parts of Nigeria, Ghana, Benin, and Cote d'Ivoire. But whatever its present importance, maize clearly has enormous potential, because improved technologies offer the pos- sibility of greatly increasing yields and thus production. This report examines the status of maize in sub-Saharan Africa. To provide a perspective on the per- formance of maize in Africa, the report begins with a review of global and regional trends in the production of the world's major cereal crops. Subsequent sections present a descriptive overview of the maize economy of Africa, focusing on production systems and technologies, utilization patterns, institutions, and policies. A discus- sion of critical production con- straints is followed by an assess- ment of future prospects for maize in Africa and priorities for research. (Kg/yr/capita) 1961 1966 1971 1976 1981 1986 Source: Calculated from FAO data. Figure 2. Consumption of millet and sorghum, roots and tubers, and imported cereals in sub-Saharan Africa, 1961-88.