*2.4.5 Dioscorea esculenta*

This type of tuber is popularly referred as 'Chinese yam'; it is smaller than other known yam species grown in Africa [24]. It possesses ability to tolerate cold temperature and can be grown in much cooler conditions than other yams. It is commonly grown in China, Korea, and Japan and it was introduced to Europe in the 1800s when the potato crop was affected by diseases [53]. In France, it is still grown for Asian food market. The tubers mature in 6 months and can be eaten immediately after harvest, while others are used as ingredients for other dishes, including noodles and traditional medicines [24, 54].
