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The Yam Value Chain: Challenges and Strategies In Overcoming Constraints

Yam (Dioscorea spp) is the second most important tuber crop in the whole world after cassava, in terms of production. They form an important food source in other tropical countries including East Africa, the Caribbean, South America, India and South East Asia. Nigeria is the highest world producer of yam with 47.9 million MT annually with Ghana (7.9 million MT) and Cote d’lvoire (7.1 million MT) as second and third largest producers respectively.