Rice (Oryza sativa is the most important cereal crop in the developing world and is the staple food of over half the world's population. It is generally considered a semi-aquatic annual grass plant. About 20 species of the genus Oryza are recognized, but nearly all cultivated rice is O. sativa L.

Cassava (Manihot esculenta) Cassava is a perennial woody shrub with an edible root, which grows in tropical and subtropical areas of the world. Cassava originated from tropical America and was first introduced into Africa in the Congo basin by the Portuguese around 1558.

Sorghum is a tall, erect, annual grass that typically grows to a height of 1-2 meters. It has long, narrow leaves and produces large, compact clusters of grain on top of its stems. The grains are typically small and round, with a hard outer layer that is difficult to remove.

Cashew nut is made up of a fruit in which the kernel is embedded. The real fruit of the cashew is commonly a nut. It is a kidney- or heart-shaped achene, in any normal variety