The major roots and tubers—cassava, potato, sweet potato, and yam—play a significant role in the global food system.They contribute to the energy and nutrition requirements of more than 2 billion people in developing countries and will continue to do so over the next two decades. They are...

"...The assessment of past trends, future prospects, and policy options reported here stems from the tradition of joint studies of roots and tubers in developing countries by the Consultative Group on International Agricultural Research (CGIAR). This report builds on that previous collaboration...