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See also:OAT (O. Eng. See also:ate; the word is not found in cognate See also:languages; it may be allied with Fr. eitel, See also:knot, nodule, cf. Gr. oiSos swelling)
, a cereal (Avena saliva) belonging to the tribe Avenece of the See also:order Gramineae or See also:grasses
.
The genus Avena contains about fifty See also:species mostly dispersed through the temperate regions of the Old See also:World
.
The spikelets See also:form a loose panicle,
See also:familiar in the cultivated See also:oat (fig
.
I), the flowering glume having its dorsal See also:rib prolonged into an awn (fig
.
2), which is in some species See also:twisted and See also:bent near the See also:base
.
The origin of the cultivated oat is generally believed to be A. fatua, or " See also:wild oat," or some similar species, of which several exist in See also:southern See also:Europe and western See also:Asia
.
See also:Professor J
.
Buckman succeeded in raising " the See also:potato-oat type " and " the See also: (After Le Maout.) in the 13th See also:century . Both this and the " See also:common otes," A. vesca, are described by See also:Gerard.2 See also:Parkinson tells us that in his See also:time (See also:early in the 17th century) the naked oat was sown in sundry places, but " nothing so frequent " as the common sort . The See also:chief See also:differences between A. fatua and A. saliva, are, that in the former the See also:chaff-scales which adhere to the grain are thick and hairy, and in the latter they are not so coarse and are hairless . The wild oat, moreover, has a See also:long stiff awn, usually twisted near the base . In the cultivated oat it may be wanting, and if See also:present it is not so stiff and is seldom bent . The grain is very small and worthless in the one, but larger and full in the other . There are now many varieties of the cultivated oat included under two See also:principal races—common oat or panicled oats with a spreading panicle, A. saliva proper, and Tatarian oats or banner oats which has sometimes been regarded as a distinct species, A. orientalis, with contracted one-sided panicles . With regard to the antiquity of the oat, A. de See also:Candolle 3 observes that it was not cultivated by the See also:Hebrews, the Egyptians, the See also:ancient Greeks and the See also:Romans . Central Europe appears to be the locality where it was cultivated earliest, at least in Europe, for grains have been found among Rarer Kinds of Grain, ii . 173 . 2 Herball, p . 68 (1597) . 2 Origin of Cultivated See also:Plants, p . 373 . FIG . 2.-Spikelet of Oat, A.the remains of the Swiss See also:lake-dwellings perhaps not earlier than the See also:bronze See also:age, while See also:Pliny alludes to See also:bread made of it by the ancient Germans . See also:Pickering also records See also:Galen's observations (De Alim . Fac. i . 14), that it was abundant in Asia See also:Minor, especially See also:Mysia, where it was made into bread as Well as given to horses . Besides the use of the See also:straw when cut up and mixed with other See also:food for See also:fodder, the oat grain constitutes an important food for both See also:man and beast . The oat grain (excepting the naked oat), like that of See also:barley, is closely invested by the husk . Oatmeal is made from the See also:kiln-dried grain from which the husks have been removed; and the form of the food is the well-known " See also:porridge." In See also:Ireland, where it is sometimes mixed with See also:Indian-See also:corn See also:meal, it is called " stirabout." Groats or grits are the whole See also:kernel from which the husk is removed . Their use is for gruel, which used to be consumed as an See also:ordinary drink in the 17th century at the See also:coffee-houses in See also:London . The meal can be baked into " cake " or See also:biscuit, as the See also:Passover cake of the See also:Jews; but it cannot be made into loaves in consequence of the See also:great difficulty in rupturing the See also:starch grains, unless the temperature be raised to a considerable height . With regard to the nutritive value of oatmeal, as compared with that of See also:wheat See also:flour, it contains a higher percentage of albuminoids than any other grain, viz . 12.6—that of wheat being io•8—and less of starch, 58.4 as against 66.3 in wheat . It has rather more See also:sugar, viz . 5.4—wheat having 4.2—and a See also:good See also:deal more See also:fat, viz . 5.6, as against 2•o in flour . Lastly, salts amount to 3'0% in oat, but are only 1.7 in wheat . Its nutritive value, therefore, is higher than that of ordinary seconds flour . |
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