They are involved in producing staple food crops that are among the top ten crops grown in the region (in acreage): millet, sorghum, cow peas, maize, groundnuts, cassava, rice and yams (World Farmers' Organisation website accessed on 26 February 2016). The horticulture sector mainly employs female labour as well. Cereals, roots and tubers, fruits and vegetables are essential for food and nutrition security and have a growing regional market.