Avena sativa

Life-forms

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Cladus: Commelinids
Ordo: Poales

Familia: Poaceae
Subfamilia: Pooideae
Tribus: Aveneae
Subtribus: Aveninae
Genus: Avena
Species: Avena sativa
Name

Avena sativa L.
References

USDA, NRCS. 2006. The PLANTS Database, 6 March 2006 (http://plants.usda.gov). Data compiled from various sources by Mark W. Skinner. National Plant Data Center, Baton Rouge, LA 70874-4490 USA.
Linnaeus, C. 1753. Species Plantarum. Tomus I: 79. Reference page.
USDA, ARS, Germplasm Resources Information Network. Avena sativa in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service.

Vernacular names
Afrikaans: Hawer
aragonés: Cevada, civada
العربية: ﺷﻮﻓﺎن
azərbaycanca: Əkin yulafı
башҡортса: Һоло
беларуская: Авёс пасяўны
български: Овес
বাংলা: অ্যাভেনা স্যাটিভা
བོད་ཡིག: ཡུག་པོ།
brezhoneg: Kerc'h
bosanski: Zob
català: Civada
čeština: Oves setý
Cymraeg: Ceirch
dansk: Almindelig Havre
Deutsch: Saat-Hafer,Echter-Hafer,Hafer
Ελληνικά: Βρώμη
English: Common Oat, Oat
Esperanto: Kutima aveno, aveno
español: Avena
eesti: Kaer
euskara: Olo
فارسی: ﻳﻮﻻف
võro: Kaar
suomi: Kaura, peltokaura
français: Avoine cultivée, avoine
galego: Avea
עברית: שיבולת-שועל
हिन्दी: जई
hrvatski: Zob
Kreyòl ayisyen: Avwàn
magyar: Abrakzab
Bahasa, Indonesia: Haver
íslenska: Hafrar
italiano: Avena comune, avena
日本語: エンバク, 燕麦
Jawa: Haver
한국어: 귀리
lietuvių: Sėjamoji aviža
latviešu: Sējas auzas, Auzas
македонски: Овес
മലയാളം: ഓട്ട്സ്
Mirandés: Bena
Nederlands: Haver
norsk: Havre
occitan: Civada
polski: Owies zwyczajny
português: Aveia-comum, Aveia
română: Ovăz
русский: Овёс посевной, Овёс
саха тыла: Эбиэс
sardu: Avena
සිංහල: යව
slovenščina: Oves
shqip: Tërshëra
српски / srpski: Ovas
svenska: Havre
Kiswahili: Oti
ไทย: ข้าวโอ๊ต
Tagalog: Obena
Türkçe: Beyaz yulaf
українська: Овес
Tiếng Việt: Yến mạch
walon: Avoenne
中文（简体）: 燕麦
中文（繁體）: 燕麥
Bân-lâm-gú: Iàn-be̍h

The oat (Avena sativa), sometimes called the common oat, is a species of cereal grain grown for its seed, which is known by the same name (usually in the plural, unlike other cereals and pseudocereals). While oats are suitable for human consumption as oatmeal and rolled oats, one of the most common uses is as livestock feed.

Origin

The wild ancestor of Avena sativa and the closely related minor crop, A. byzantina, is the hexaploid wild oat, A. sterilis. Genetic evidence shows the ancestral forms of A. sterilis grew in the Fertile Crescent of the Near East.[1] Oats are usually considered a secondary crop, i.e., derived from a weed of the primary cereal domesticates, then spreading westward into cooler, wetter areas favorable for oats, eventually leading to their domestication in regions of the Middle East and Europe.[1]
Cultivation

Oats are best grown in temperate regions. They have a lower summer heat requirement and greater tolerance of rain than other cereals, such as wheat, rye, or barley, so they are particularly important in areas with cool, wet summers, such as Northwest Europe and even Iceland. Oats are an annual plant, and can be planted either in autumn (for late summer harvest) or in the spring (for early autumn harvest).
Production
Oats production – 2019
Millions of tonnes
Russia 4.42
Canada 4.24
Poland 1.21
Finland 1.19
Australia 1.13
United Kingdom 1.08
Brazil 0.92
World

22.59
United Nations, Food and Agriculture Organization, Statistics Division[2]

In 2019, global production of oats was 23 million tonnes (51 billion pounds), led by Russia and Canada, each having about 20% of the world total (table). Other substantial producers were Poland, Finland, Australia, and the United Kingdom, each with over 1 million tonnes (2.2 billion pounds).[2]
Uses

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Oat seed under a microscope

Oats have numerous uses in foods; most commonly, they are rolled or crushed into oatmeal, or ground into fine oat flour. Oatmeal is chiefly eaten as porridge, but may also be used in a variety of baked goods, such as oatcakes, oatmeal cookies, and oat bread. Oats are also an ingredient in many cold cereals, in particular muesli and granola. Oats are also used for production of milk substitutes ("oat milk").

In Scotland, a dish was made by soaking the husks from oats for a week, so the fine, floury part of the meal remained as sediment to be strained off, boiled, and eaten.[3] Oats are also widely used there as a thickener in soups, as barley or rice might be used in other countries.
Closeup of oat florets (small flowers)

Oats are also commonly used as feed for horses when extra carbohydrates and the subsequent boost in energy are required. The oat hull may be crushed ("rolled" or "crimped") for the horse to more easily digest the grain, or may be fed whole. They may be given alone or as part of a blended food pellet. Cattle are also fed oats, either whole or ground into a coarse flour using a roller mill, burr mill, or hammermill. Oat forage is commonly used to feed all kinds of ruminants, as pasture, straw, hay, or silage.[4]

Winter oats may be grown as an off-season groundcover and ploughed under in the spring as a green fertilizer, or harvested in early summer. They also can be used for pasture; they can be grazed a while, then allowed to head out for grain production, or grazed continuously until other pastures are ready.[5]

Oat straw is prized by cattle and horse producers as bedding, due to its soft, relatively dust-free, and absorbent nature. The straw can also be used for making corn dollies. Tied in a muslin bag, oat straw was used to soften bath water.

Oats are also occasionally used in several different drinks. In Britain, they are sometimes used for brewing beer. Oatmeal stout is one variety brewed using a percentage of oats for the wort. The more rarely used oat malt is produced by the Thomas Fawcett & Sons Maltings and was used in the Maclay Oat Malt Stout before Maclays Brewery ceased independent brewing operations. Atholl Brose is a traditional Scottish beverage made by steeping oats in whisky and then blending the resulting "brose" with honey and sometimes cream. A cold, sweet drink, called avena in Spanish, made of ground oats and milk, is a popular refreshment throughout Latin America. Oatmeal caudle, made of ale and oatmeal with spices, was a traditional British drink and a favourite of Oliver Cromwell.[6][7]

Oat extracts can also be used to soothe skin conditions, and are popular for their emollient properties in cosmetics.[8]

Oat grass has been used traditionally for medicinal purposes, including to help balance the menstrual cycle, treat dysmenorrhoea, and for osteoporosis and urinary tract infections.[9]
Health
Nutrient profile

Oats

Nutritional value per 100 g (3.5 oz)
Energy	1,628 kJ (389 kcal)
Carbohydrates	66.3 g
Dietary fiber	11.6 g
Fat	6.9 g
Saturated	1.21 g
Monounsaturated	2.18 g
Polyunsaturated	2.54 g
Protein	16.9 g
Vitamins	Quantity %DV†
Thiamine (B1)	66% 0.763 mg
Riboflavin (B2)	12% 0.139 mg
Niacin (B3)	6% 0.961 mg
Pantothenic acid (B5)	27% 1.349 mg
Vitamin B6	9% 0.12 mg
Folate (B9)	14% 56 μg
Minerals	Quantity %DV†
Calcium	5% 54 mg
Iron	38% 5 mg
Magnesium	50% 177 mg
Manganese	233% 4.9 mg
Phosphorus	75% 523 mg
Potassium	9% 429 mg
Sodium	0% 2 mg
Zinc	42% 4 mg
Other constituents	Quantity
β-glucans (soluble fiber) [10]	4 g
Full Report of USDA Database entry
Units μg = micrograms • mg = milligrams IU = International units
†Percentages are roughly approximated using US recommendations for adults.

Oats contain diverse essential nutrients (see table). In a 100 g (3+1⁄2 oz) serving, oats provide 1,630 kJ (389 kcal) of food energy and are a rich source (20% or more of the Daily Value, DV) of protein (34% DV), dietary fiber (44% DV), several B vitamins and numerous dietary minerals, especially manganese (233% DV) (table). Oats are 66% carbohydrates, including 11% dietary fiber and 4% beta-glucans, 7% fat, and 17% protein (table).

The established property of their cholesterol-lowering effects[11][12] has led to acceptance of oats as a health food.[13]
Soluble fiber
Oat grains in their husks

Oat bran is the outer casing of the oat. Its daily consumption over weeks lowers low-density lipoprotein and total cholesterol, possibly reducing the risk of heart disease.[11][14] One type of soluble fiber contained in oats, beta-glucans, has been proven to lower serum cholesterol.[11]

After reports of research findings that dietary oats can help lower cholesterol, the United States Food and Drug Administration (FDA) issued a final rule[15] that allows food companies to make health claims on food labels of foods that contain soluble fiber from whole oats (oat bran, oat flour, and rolled oats), noting that 3.0 grams (0.11 oz) of soluble fiber daily from these foods may reduce the risk of heart disease. To qualify for the health claim, the food that contains the oats must provide at least 0.75 grams (0.026 oz) of soluble fiber per serving.[15]

Beta-D-glucans, usually referred to as beta-glucans, comprise a class of indigestible polysaccharides widely found in nature in sources such as grains, yeast, bacteria, algae, and mushrooms. In oats, barley, and other cereal grains, they are located primarily in the endosperm cell wall. The oat beta-glucan health claim applies to oat bran, rolled oats, whole oat flour, and oatrim, a soluble fraction of alpha-amylase hydrolyzed oat bran, or whole oat flour.[15]

Oat beta-glucan is a viscous polysaccharide made up of units of the monosaccharide D-glucose, and is composed of mixed-linkage polysaccharides. This means the bonds between the D-glucose or D-glucopyranosyl units are either beta-1, 3 linkages or beta-1, 4 linkages. This type of beta-glucan is also referred to as a mixed-linkage (1→3), (1→4)-beta-D-glucan. The (1→3)-linkages break up the uniform structure of the beta-D-glucan molecule and make it soluble and flexible. In comparison, the indigestible polysaccharide cellulose is also a beta-glucan, but is not soluble because of its (1→4)-beta-D-linkages. The percentages of beta-glucan in the various whole oat products are: oat bran, having from 5.5% to 23.0%; rolled oats, about 4%; and whole oat flour about 4%.

Protein

Oats are the only cereal containing a globulin or legume-like protein, avenalin, as the major (80%) storage protein.[16] Oat protein is nearly equivalent in quality to soy protein, which World Health Organization research has shown to be equal to meat, milk, and egg protein.[17]

Celiac disease
Main articles: Oat sensitivity and Gluten-related disorders

Avenins present in oats (proteins similar to gliadin from wheat) can trigger celiac disease in a small proportion of people.[18][19] Also, oat products are frequently contaminated by other gluten-containing grains, mainly wheat and barley.[19][20][21] Celiac disease is a permanent intolerance to certain gluten proteins in genetically predisposed people, having a prevalence of about 1% in the developed world.[22] Gluten is present in wheat, barley, rye, oat, and all their species and hybrids[18][22] and contains hundreds of proteins, with high contents of prolamins.[23]

Oat prolamins, named avenins, are similar to gliadins found in wheat, hordeins in barley, and secalins in rye, which are collectively named gluten.[18] Avenins' toxicity in celiac people depends on the oat cultivar consumed because of prolamin genes, protein amino acid sequences, and immunoreactivities of toxic prolamins, which vary among oat varieties.[19][20][24] Also, oat products are frequently cross-contaminated with other gluten-containing cereals during grain harvesting, transport, storage, or processing.[20][24][25] Pure oats contain less than 20 parts per million of gluten from wheat, barley, rye, or any of their hybrids.[19][20]

Use of pure oats in a gluten-free diet offers improved nutritional value from the rich content of oat protein, vitamins, minerals, fiber, and lipids,[20][26] but remains controversial because a small proportion of people with celiac disease react to pure oats.[19][27] Some cultivars of pure oats could be a safe part of a gluten-free diet, requiring knowledge of the oat variety used in food products.[19][20] Determining whether oat consumption is safe is critical because people with poorly controlled celiac disease may develop multiple severe health complications, including cancers.[28]

Use of pure oat products is an option, with the assessment of a health professional,[19] when the celiac person has been on a gluten-free diet for at least 6 months and all celiac symptoms have disappeared clinically.[19][29] Celiac disease may relapse in few cases with the consumption of pure oats.[30] Screening with serum antibodies for celiac disease is not sensitive enough to detect people who react to pure oats and the absence of digestive symptoms is not an accurate indicator of intestinal recovery because up to 50% of people with active celiac disease have no digestive symptoms.[30][31][32] The lifelong follow-up of celiac people who choose to consume oats may require periodic performance of intestinal biopsies.[28] The long-term effects of pure oats consumption are still unclear[28][29] and further well-designed studies identifying the cultivars used are needed before making final recommendations for a gluten-free diet.[25][26]
Agronomy

Oats

Nutritional value per 100 g (3.5 oz)
Energy	1,628 kJ (389 kcal)
Carbohydrates	66.3 g
Dietary fiber	11.6 g
Fat	6.9 g
Saturated	1.21 g
Monounsaturated	2.18 g
Polyunsaturated	2.54 g
Protein	16.9 g
Vitamins	Quantity %DV†
Thiamine (B1)	66% 0.763 mg
Riboflavin (B2)	12% 0.139 mg
Niacin (B3)	6% 0.961 mg
Pantothenic acid (B5)	27% 1.349 mg
Vitamin B6	9% 0.12 mg
Folate (B9)	14% 56 μg
Minerals	Quantity %DV†
Calcium	5% 54 mg
Iron	38% 5 mg
Magnesium	50% 177 mg
Manganese	233% 4.9 mg
Phosphorus	75% 523 mg
Potassium	9% 429 mg
Sodium	0% 2 mg
Zinc	42% 4 mg
Other constituents	Quantity
β-glucans (soluble fiber) [10]	4 g
Full Report of USDA Database entry
Units μg = micrograms • mg = milligrams IU = International units
†Percentages are roughly approximated using US recommendations for adults.

Noire d'Epinal, an ancient oat variety.

Oats are sown in the spring or early summer in colder areas, as soon as the soil can be worked. An early start is crucial to good yields, as oats go dormant in summer heat. In warmer areas, oats are sown in late summer or early fall. Oats are cold-tolerant and are unaffected by late frosts or snow.

Oats grow well on sandy loam to heavy clay soils with good drainage. On acid soils, oats perform better than other small-grain cereals. Saline soils are not suitable.[33]

Seeding rates

Typically, about 125 to 175 kg/ha (between 2.75 and 3.25 bushels per acre) are sown, either broadcast or drilled. Lower rates are used when interseeding with a legume. Somewhat higher rates can be used on the best soils, or where problems with weeds exist. Excessive sowing rates lead to problems with lodging, and may reduce yields.

Fertilizer requirements

Oats remove substantial amounts of nitrogen from the soil. They also remove phosphorus in the form of P2O5 at the rate of 0.25 pound per bushel (1 bushel = 38 pounds at 12% moisture). Phosphate is thus applied at a rate of 30 to 40 kg/ha, or 30 to 40 lb/acre. Oats remove potash (K2O) at a rate of 0.19 pound per bushel, which causes use of 15–30 kg/ha, or 13–27 lb/acre. Usually, 50–100 kg/ha (45–90 lb/ac) of nitrogen in the form of urea or anhydrous ammonia is sufficient, as oats use about 1 lb per bushel. A sufficient amount of nitrogen is particularly important for plant height and hence, straw quality and yield. When the prior-year crop was a legume, or where ample manure is applied, nitrogen rates can be reduced somewhat.

Harvesting
Harvesting of oats in Jølster, Norway circa 1890
(Photo: Axel Lindahl/Norwegian Museum of Cultural History)

Harvest techniques are a matter of available equipment, local tradition, and priorities. Farmers seeking the highest yield from their crops time their harvest so the kernels have reached 35% moisture, or when the greenest kernels are just turning cream-coloured. They then harvest by swathing, cutting the plants about 10 cm (4 in) above ground, and putting the swathed plants into windrows with the grain all oriented the same way. They leave the windrows to dry in the sun for several days before combining them using a pickup header. Finally, they bale the straw.

Oats can also be left standing until completely ripe and then combined with a grain head. This causes greater field losses as the grain falls from the heads, and harvesting losses, as the grain is threshed out by the reel. Without a draper head, more damage to the straw also occurs, since it is not properly oriented as it enters the combine's throat. Overall yield loss is 10–15% compared to proper swathing.

Historical harvest methods involved cutting with a scythe or sickle, and threshing under the feet of cattle. Late 19th- and early 20th-century harvesting was performed using a binder. Oats were gathered into shocks, and then collected and run through a stationary threshing machine.

Storage

After combining, the oats are transported to the farmyard using a grain truck, tractor-trailer, or road train, where they are augered or conveyed into a bin for storage. Sometimes, when there is not enough bin space, they are augered into portable grain rings, or piled on the ground. Oats can be safely stored at 12–14% moisture; at higher moisture levels, they must be aerated or dried.
Yield and quality

Oat seeds

In the United States, No.1 oats weigh 36 pounds per US bushel (463 kg/m3); No. 2 oats must weigh 33 pounds per US bushel (425 kg/m3). No.3 oats must weigh at least 30 lb/US bu (386 kg/m3). If 27 lb/US bu (348 kg/m3), they are graded as No.4, and oats under 27 lb/US bu (348 kg/m3) are graded as "light weight".

In Canada, No.1 oats weigh 42.64 lb/US bu (549 kg/m3); No.2 oats must weigh 40.18 lb/US bu (517 kg/m3); No.3 oats must weigh at least 38.54 lb/US bu (496 kg/m3) and if oats are lighter than 36.08 lb/US bu (464 kg/m3) they do not make No.4 oats and have no grade.[34]

Oats are bought and sold and yields on the basis of a bushel equal to 32 pounds (14.5 kg or 412 kg/m3) in the United States, and a bushel equal to 34 pounds (15.4 kg or 438 kg/m3) in Canada. "Bright oats" were sold on the basis of a bushel equal to 48 pounds (21.8 kg or 618 kg/m3) in the United States.

Yields range from 60 to 80 US bushels per acre (5.2–7.0 m3/ha) on marginal land, to 100 to 150 US bushels per acre (8.7–13.1 m3/ha) on high-producing land. The average production is 100 bushels per acre, or 3.5 tonnes per hectare. Straw yields are variable, ranging from one to three tonnes per hectare, mainly due to available nutrients and the variety used (some are short-strawed, meant specifically for straight combining).
Genetics and breeding

Avena sativa is an allohexaploid plant with 3 ancestral genomes ("A", "C" and "D").[35] The hexaploid genome is challenging to sequence and the oat genome seqencing project is focusing on diploid species at first. Species within Avena can hybridize and genes introgressed from other "A" genome species has contributed with many valuable traits, like crown rust resistance.[36]

It is also possible to do introgression of traits in oats from very wide intergeneric hybridization. In contrast to wheat, oats sometimes retain chromosomes from maize or pearl millet.[37][38] These wide crosses are typically made in order to generate doubled haploid breeding material where the rapid loss of the alien chromosomes from the unrelated pollen donor results in a plant with only a single set of chromosomes (a haploid). The addition lines with alien chromosomes can be used as a source for novel traits in oats, for example has research on Oat-Maize-Addition lines (OMAs) been used to map genes involved in C4 photosynthesis. In order to obtain mendelian inheritance of these novel traits, radiation hybrid lines have been established, where maize chromosome segments have been introgressed in the oat genome. Interestingly, these techniques which potentially transfers thousands of genes from a species that is very distantly related is not considered a GMO according to the European Union definition, since sexual hybridization and radiation-induced introgression are explicitly excluded from the definition.[39]

Diseases

Oats are subject to several fungal, bacterial, viral, nematode and other diseases. The most important disease likely to affect a crop depends on the environment and region of world where the crop is being grown. Some oat varieties are resistant to some diseases.

See this list of oat diseases for the most significant causal agents.
Processing

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Porridge oats before cooking

Oats processing is a relatively simple process:
Cleaning and sizing

Upon delivery to the milling plant, the oats are cleaned, removing the chaff and items such as rocks, metal, oversized materials, and other grains. Oats of different sizes de-hull at differing velocities. So, once impurities have been removed, the raw oats are separated by width and length into different classifications before de-hulling.
Dehulling

Centrifugal acceleration is used to separate the outer hull from the inner oat groat. Oats are fed by gravity onto the centre of a horizontally spinning impeller, which accelerates the oats towards an outer mill ring. Groats and oat hulls are separated on impact. The lighter oat hulls are then aspirated away, while the denser oat groats are taken to the next step of processing. Oat hulls can be used as feed or as a biomass fuel and are often used within the oat processing line to power solid fuel boilers for steam and power generation. Alternatively, excess oat hulls are generally pelletised before being provided as feed.

Control points.

The main control point on hulling is the impeller speed, controlled by the RPM of the electric motor driving the impeller. Also, throughput is achieved by varying the distance between the feed baffle and the impeller, ie if the operator reduces the gap then less oats flow through. This adjustment also varies the efficiency of the impellor speed. The type of mill ring used in hulling is also interchangeable, however would not be classified as a general day to day control point and is generally implemented in a way to soften/minimise groat breakage while maximising hulling efficiency. Lastly, negative aspiration is maintained to reduce dust and blockages.
Kilning

The unsized oat groats pass through a heat and moisture treatment to balance moisture for optimal storage conditions and to deactivate self catalyzing enzyme activity. Oat groats are high in fat (lipids) and once removed from their protective hulls and exposed to air, enzymatic (lipase) activity begins to break down the fat into free fatty acids, ultimately causing an off-flavor or rancidity. Depending on temperature, humidity and moisture content, de-hulled oats can begin to show signs of enzymatic rancidity rapidly if not stabilized. This process is primarily done in food-grade plants, not in feed-grade plants. Groats are not considered raw if they have gone through this process; the heat disrupts the germ and they cannot sprout.
Sizing of groats

Many whole oat groats break during the dehulling process, leaving the following types of groats to be sized and separated for further processing: whole oat groats, coarse steel cut groats, steel cut groats, and fine steel cut groats. Groats are sized and separated using screens, shakers and indent screens. After the whole oat groats are separated, the remaining broken groats get sized again into the three groups (coarse, regular, fine), and then stored. "Steel cut" refers to all sized or cut groats. When not enough broken groats are available to size for further processing, whole oat groats are sent to a cutting unit with steel blades that evenly cut groats into the three sizes above.
Final processing

Three methods are used to make the finished product:
Flaking

This process uses two large smooth or corrugated rolls spinning at the same speed in opposite directions at a controlled distance, before which the cut groats are conditioned for flaking via steam injection. After flaking, the oats are then dried to a sufficient moisture for storage and transport. Oat flake thickness is a key control point dependant of the type of oat flakes to be produced. Typically, the flakes produced are either instant, quick or traditional whole rolled oats and range in size from 0.4 to 1 millimetre (0.016 to 0.039 in).
Oat bran milling

This process takes the oat groats through several roll stands to flatten and separate the bran from the flour (endosperm). The two separate products (flour and bran) get sifted through a gyrating sifter screen to further separate them. The final products are oat bran and debranned oat flour.
Whole flour milling

This process takes oat groats straight to a grinding unit (stone or hammer mill) and then over sifter screens to separate the coarse flour and final whole oat flour. The coarser flour is sent back to the grinding unit until it is ground fine enough to be whole oat flour. This method is used often in India and other countries. In India, whole grain oat flour (jai) is used to make Indian bread known as jarobra in Himachal Pradesh.
Preparation at home

Oat flour can be ground for small scale use by pulsing rolled oats or old-fashioned (not quick) oats in a food processor or spice mill.[40][41]
Trade

Oats are traded as a futures contract on the CBOT (Chicago Board Of Trade) exchange. The futures contracts are qoted in Cents/Bushel with a full contract size of 5000 Bushels. Contracts have two sets of trading hours, a Globex Day session 08:30 - 13:15, and a Globex Night session 19:00 - 07:45. The futures contacts expire in March, May, July, September, December.

Bellow are the Contract Specifications for Oats:
Contract Specification[42] Oats (OTA)
Exchange: CBOT
Sector: Grain
Tick Size: 0.25
Tick Value: 12.5 USD
BPV: 50
Denomination: USD
Decimal Place: 2
See also
Oat products and derivatives

Export hay
Muesli
Oat bread
Oat milk
Oatcake
Oatmeal
Parkin (cake)
Porridge
Rolled oats
Steel-cut oats

References

Zhou, X.; Jellen, E.N.; Murphy, J.P. (1999). "Progenitor germplasm of domesticated hexaploid oat". Crop Science. 39 (4): 1208–1214. doi:10.2135/cropsci1999.0011183x003900040042x.
"Oats production in 2019, Crops/World Regions/Production Quantity from pick lists". Food and Agriculture Organization, Statistics Division, FAOSTAT. 2021. Retrieved 17 July 2021.
Gauldie, Enid (1981). The Scottish country miller, 1700–1900: a history of water-powered meal milling in Scotland. Edinburgh: J. Donald. ISBN 978-0-85976-067-6.
Heuzé V., Tran G., Boudon A., Lebas F., 2016. "Oat forage". Feedipedia, a programme by INRA, CIRAD, AFZ and FAO. April 13, 2016
"Grazing of Oat Pastures". eXtension. 2008-02-11. Archived from the original on 2015-08-19. Retrieved 2013-03-27.
The Compleat Housewife, p. 169, Eliza Smith, 1739
Food in Early Modern Europe, Ken Albala, Greenwood Publishing Group, 2003, ISBN 0-313-31962-6
Heuzé V., Tran G., Nozière P., Renaudeau D., Lessire M., Lebas F., 2016. Oats. Feedipedia, a programme by INRA, CIRAD, AFZ and FAO. https://www.feedipedia.org/node/231 Last updated on April 15, 2016, 11:21
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