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pearl millet : ウィキペディア英語版 | pearl millet
Pearl millet (''Pennisetum glaucum'') is the most widely grown type of millet. It has been grown in Africa and the Indian subcontinent since prehistoric times. The center of diversity, and suggested area of domestication, for the crop is in the Sahel zone of West Africa. Recent archaeobotanical research has confirmed the presence of domesticated pearl millet on the Sahel zone of northern Mali between 2500 and 2000 BC.〔Manning, Katie, Ruth Pelling, Tom Higham, Jean-Luc Schwenniger and Dorian Q Fuller (2010) 4500-year-old domesticated pearl millet (Pennisetum glaucum) from the Tilemsi Valley, Mali: new insights into an alternative cereal domestication pathway. Journal of Archaeological Science 38 (2): 312-322〕 Cultivation subsequently spread and moved overseas to India. The earliest archaeological records in India date to around 2000 BC,〔Fuller,D.Q. (2003). African crops in prehistoric South Asia: a critical review. in Neumann,K., Butler,A., Kahlheber,S. (ed.) Food, Fuel and Fields. Progress in Africa Archaeobotany. Africa Praehistorica 15 series. Cologne: Heinrich-Barth-Institut, 239-271.〕 and it spread rapidly through India reaching South India by 1500 BC, based on evidence from the site of Hallur. Cultivation also spread throughout eastern and southern parts of Africa. Pearl millet is widely grown in the northeastern part of Nigeria (especially in Borno and Yobe states). It is a major source of food to the local villagers of that region. The crop grows easily in that region due to its ability to withstand harsh weather conditions like drought and flood. Records exist for cultivation of pearl millet in the United States in the 1850s, and the crop was introduced into Brazil in the 1960s. == Cultivation == Pearl millet is well adapted to growing areas characterized by drought, low soil fertility, and high temperature. It performs well in soils with high salinity or low pH. Because of its tolerance to difficult growing conditions, it can be grown in areas where other cereal crops, such as maize or wheat, would not survive. Today pearl millet is grown on over 260,000 km2 of land worldwide. It accounts for approximately 50% of the total world production of millets.〔(Millet ). Consultative Group on International Agricultural Research.〕
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