cassava is a highly adaptable crop. it is able to grow in diverse climates and soil with low fertility It is normally planted during the rainy season and harvested 10-12 months after planting to optimize its starch. notwithstanding the case-to-case variations, the marketing and trading chains for this commodity generally involve a number of layers and such key players as farmers, collectors, factory agent, local traders, foreign traders,cross-border traders, local processing factories, foreign processing factories and exporters. despite the relative ease of producing cassava, several constraints more or less common to the GMS-4 have been noted, namely: