What crops are there in the African Origin Center?

The oldest human on earth appeared in Africa about 2 million years ago. Local agriculture appeared at least 6000 years ago (Harlan, 1992). But for a long time, people know little about the origin of African crops. In fact, Africa, like other places, is also a very important center of crop origin. A large number of crops were first domesticated in Africa, among which the most important world crops include coffee, sorghum, pearl millet, oil palm, watermelon, cowpea and ragweed, and many other crops that are mainly important to Africans, including African rice, yam and gourd. However, unlike the Near East, the distribution of most crops originating in Africa is relatively narrow (mainly tribal and cultural distribution rather than ecological adaptability), and there is no obvious center for plant domestication, and domestication activities are widespread from south to north and from east to west.

However, since ancient times, Africans living in the Sahara and its surrounding areas have always regarded collecting and harvesting wild plant seeds as an important part of their lives, and even commercialized them. A species of fenugreek. ) mainly harvested in the northern Sahara region, panicles. Mainly collected from the middle, and coriander with two flowers. The main harvest of tribulus terrestris is in the south. They also harvested wild plants, such as wild rice with hairy leaves and wild rice with barthii, the ancestors of Ethiopia's most important cereal crops.