Millet
Carl Linnaeus described foxtail millet as Panicum italicum in 1753. Joseph Gaertner named finger millet Eleusine coracana in 1788. Palisot de Beauvois grouped several taxa into Setaria italica by 1812. Otto Stapf divided the genus Pennisetum into sections in 1934, identifying thirty-two species including all cultivated ones. J. Brunken and colleagues reclassified wild P. violaceum as part of the cultivated species P. glaucum in 1977. Millets belong to the grass family Poaceae but split across different tribes and subfamilies. The tribe Paniceae contains pearl millet, proso, foxtail, fonio, little millet, sawa, Japanese barnyard millet, and kodo. Finger millet sits within the tribe Cynodonteae under Chloridoideae. Teff belongs to the tribe Eragrostideae. Sorghum falls under the tribe Andropogoneae alongside great millet. These species are not closely related despite sharing the common name millet.
Archaeological evidence at Cishan identified proso millet husk phytoliths around 10,300 to 8,700 years ago. Storage pits there held remains of pit-houses, pottery, and stone tools linked to cultivation. Foxtail millet evidence dates back approximately 8,700 years at the same site. Noodles made from these varieties appeared under a 4,000-year-old earthenware bowl at Lajia. This represents the oldest known evidence of millet noodles in China. Asian varieties reached the Black Sea region by 5000 BC. Millet grew wild in Greece as early as 3000 BC. Bulk storage containers for millet exist from the Late Bronze Age in Macedonia and northern Greece. Hesiod wrote that beards grow round the millet sown in summer. Little millet domesticated around 3000 BC in the Indian subcontinent. Kodo millet followed around 3700 BC in the same region. Pearl millet arrived in India between 2000 BC and 1700 BC. Finger millet spread to South India by 1800 BC. Finger millet is native to East African highlands and domesticated before the third millennium BC. Early finds include Birimi in Ghana dated 1740 cal BC and Dhar Tichitt in Mauritania spanning 1936 to 1683 cal BC.
India produces 11.8 million tonnes annually, representing 38% of global production. Eight of the top ten producing nations are in Africa. Niger grows 3.7 million tonnes while Chad produces 0.7 million tonnes. China ranks third with 2.7 million tonnes. Global output reached 30.9 million tonnes in 2022. Pearl millet serves as a major dryland crop alongside sorghum in semiarid regions. Millets thrive in poor, dry infertile soils where other grains fail. They respond well to irrigation and soil supplements. Grain production can increase two to four times per hectare with these inputs. 'Okashana 1' doubled yields when developed from Burkina Faso varieties. Farmers adopted this variety enthusiastically after its release in Namibia in 1990. It became the most popular pearl millet type there. The Food and Agriculture Organisation declared 2023 the International Year of Millets following an Indian Government request in 2018. Millet accounts for over 65% of cereals eaten in Niger and Namibia. Consumption remains highest in Western Africa.
The International Crops Research Institute for the Semi-Arid Tropics conducts research on millets. ICAR-Indian Institute of Millets Research operates out of Telangana, India. The United States Department of Agriculture Agricultural Research Service works at Tifton, Georgia. Scientists study insect pests including corn borers and stemborers. Caterpillars from families Erebidae and Noctuidae damage crops. The millet midge and various flies in Muscidae cause harm. Hemipteran bugs like aphids and thrips attack plants. Serious fungal infections include anthracnose, blast, charcoal rot, downy mildew, ergot, grain mould, rust, and sheath rot. Bacterial diseases such as leaf spot and stripe are generally less severe. Viral threats include maize stripe virus and sorghum red stripe virus. Improved varieties with enhanced disease resistance significantly increase farm yields. Breeding programs focus on yield improvement and adaptability for future food security. Cooperation between poor countries helps develop better strains. Farmers can wait until late spring moisture is present before grazing livestock on millet.
Pearl millet contains 10.6 grams of protein per 100 grams. Finger millet provides 344 milligrams of calcium per 100 grams. Foxtail millet offers 12.3 grams of protein and 8 grams of fiber. Barnyard millet delivers 15.2 milligrams of iron per 100 grams. Millets contain antinutrients that interfere with nutrient digestion. Millet-heavy diets may contribute to endemic goitre in rural Africa and Asia. Processing techniques like malting, milling, cooking, and fermentation reduce these antinutrients. People with coeliac disease or wheat allergy can replace gluten-containing cereals with millet. There remains a risk of contamination from other grains during processing. Proso millet has only 0.8 milligrams of iron but high protein content. Kodo millet provides 9 grams of fiber per 100 grams. Brown top millet contains 12.5 grams of fiber but negligible zinc levels. Nutrient profiles compare favorably to conventional cereals like wheat and rice.
Millet forms over 65% of cereals eaten in Niger and Namibia. Countries including Burkina Faso, Chad, and the Gambia rely heavily on it. Fermented beverages include cipumu in Tanzania and bushera in Uganda. Mangisi comes from Zimbabwe while marrisa originates in Sudan. Zaporozhian Cossacks historically ate kulish porridge made primarily with millet. This dish served with stewed vegetables and meat cooked in cauldrons remains part of modern Ukrainian cuisine. German breakfasts feature sweet millet with milk and berries. Russian Lipetsk Oblast produces millet fritters for ritual and daily meals. Finger millet becomes ragi rotti flatbread in Karnataka, India. Himalayan regions ferment millet into tongba and raksi alcoholic drinks. Vietnamese snacks layer smashed millet and mung bean topped with dried coconut inside rice cakes. Millet serves as a staple food across diverse global cuisines despite declining consumption in some areas.
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Common questions
When did Carl Linnaeus describe foxtail millet as Panicum italicum?
Carl Linnaeus described foxtail millet as Panicum italicum in 1753. This classification occurred before Joseph Gaertner named finger millet Eleusine coracana in 1788.
Where was the oldest known evidence of millet noodles found and when?
The oldest known evidence of millet noodles appeared under a 4,000-year-old earthenware bowl at Lajia in China. Archaeological findings at Cishan identified proso millet husk phytoliths around 10,300 to 8,700 years ago.
Which country produces the most millet annually and what percentage of global output does it represent?
India produces 11.8 million tonnes of millet annually, representing 38% of global production. Global output reached 30.9 million tonnes in 2022 with eight of the top ten producing nations located in Africa.
What diseases affect millet crops and how do scientists study them?
Serious fungal infections include anthracnose, blast, charcoal rot, downy mildew, ergot, grain mould, rust, and sheath rot. Scientists from institutions like the International Crops Research Institute for the Semi-Arid Tropics study pests such as corn borers and stemborers to develop improved varieties with enhanced disease resistance.
How much calcium does finger millet provide per 100 grams and why is this significant?
Finger millet provides 344 milligrams of calcium per 100 grams. This high mineral content makes it a valuable food source despite containing antinutrients that can interfere with nutrient digestion unless processed through techniques like malting or fermentation.