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Biography
About|the vegetable|the band|Radish (band)taxobox|name = Radish|image = Radish 3371103037 4ab07db0bf o.jpg|image_caption = Radishes|regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Rosids |ordo = Brassicales |familia = Brassicaceae |genus = Raphanus |species = R. sativus |binomial = Raphanus sativus |binomial_authority = Carolus Linnaeus|L. |The radish ( Raphanus sativus ) is an Eating|edible root vegetable of the Brassicaceae family that was domesticated in Europe ,Lewis-Jones, L.J.; Thorpe, J.P.; Wallis, G.P. (1982). Genetic divergence in four species of the genus Raphanus : Implications for the ancestry of the domestic radish R. sativus . Biological Journal of the Linnean Society . 18(1): 35-48. in pre- Roman Empire|Roman times. They are grown and consumed throughout the world. Radishes have numerous varieties, varying in size, color and duration of required cultivation time. There are some radishes that are grown for their seeds; oilseed radishes are grown, as the name implies, for oil production. Radish can sprout from seed to small plant in as little as 3 days.
History
The descriptive Greek name of the genus Raphanus means "quickly appearing" and refers to the rapid germination of these plants. Raphanistrum from the same Greek root is an old name once used for this genus. The common name "radish" is derived from Latin (Radix = root).
Although the radish was a well-established crop in Hellenistic and Roman Empire|Roman times, which leads to the assumption that it was brought into cultivation at an earlier time, Zohary and Hopf note that "there are almost no archeological records available" to help determine its earlier history and domestication. Wild forms of the radish and its relatives the mustard plant|mustards and turnip can be found over west Asia and Europe, suggesting that their domestication took place somewhere in that area. However Zohary and Hopf conclude, "Suggestions as to the origins of these plants are necessarily based on linguistic considerations."cite book | first1= Daniel | last1= Zohary | first2 = Maria | last2 = Hopf | title = Domestication of plants in the Old World | edition = 3rd | location = Oxford | publisher = University Press | year= 2000 | page= 139
Cultivation
Radishes grow best in full sun http://www.gardening.cornell.edu/homegardening/scene341b.html Cornell University. Growing Guide: Radishes and light, sandy loams with pH 6.5–7.0.Dainello, Frank J. (November 2003.) http://aggie-horticulture.tamu.edu/extension/vegetable/cropguides/radish.html "Radish Crop Guide" Texas Cooperative Extension, Horticulture Crop Guides Series They are in season from April to June and from October to January in most parts of North America; in Europe and Japan they are available year-round due to the plurality of varieties grown.Citation needed|date=September 2007 Summer radishes mature rapidly, with many varieties germinating in 3–7 days, and reaching maturity in three to four weeks.Faust, Joan Lee. (1996-03-03.) http://query.nytimes.com/gst/fullpage.html? res=9C05E0DB1E39F930A35750C0A960958260 "Hail the Speedy Radish, in All Its Forms." The New York Times , via nytimes.com archives. Retrieved on 2007-09-27.Peterson, Cass. (1999-05-02.) http://query.nytimes.com/gst/fullpage.html? res=9C0CEFDE103DF931A35756C0A96F958260 "Radishes: Easy to Sprout, Hard to Grow Right." The New York Times , via nytimes.com archives. Retrieved on 2007-09-27. Harvesting periods can be extended through repeated plantings, spaced a week or two apart.
As with other root crops, tilling the soil helps the roots grow.Beattie, J. H. and W. R. Beattie. (March 1938.) http://digital.library.unt.edu/permalink/meta-dc-1562:1 "Production of Radishes." U.S. Department of Agriculture, leaflet no. 57, via University of North Texas Government Documents A to Z Digitization Project website. Retrieved on 2007-09-27. However, radishes are used in no-till farming to help reverse compaction.
Most soil types will work, though sandy loam s are particularly good for winter and spring crops, while soils that form a hard crust can impair growth. The depth at which seeds are planted affects the size of the root, from convert|1|cm|in|1|abbr=ondeep recommended for small radishes to convert|4|cm|abbr=on for large radishes.
Radishes are a common garden crop in the U.S., and the fast harvest cycle makes them a popular choice for children's gardens.
Companion plant
Radishes serve as companion plant s for many other species, because of their ability to function as a trap crop against pests like flea beetle s. These pests will attack the leaves, but the root remains healthy and can be harvested later.
Varieties
Broadly speaking, radishes can be categorized into four main types (summer, fall, winter, and spring) and a variety of shapes, colors, and sizes, such as red, pink, white, gray-black or yellow radishes, with round or elongated roots that can grow longer than a parsnip .
Spring or summer radishes
Sometimes referred to as European radishes or spring radishes if they're planted in cooler weather, summer radishes are generally small and have a relatively short 3–4 week cultivation time.Citation needed|date=September 2007
The April Cross is a giant white radish hybrid that Bolting (horticulture)|bolts very slowly.
Bunny Tail is an heirloom variety from Italy , where it is known as 'Rosso Tondo A Piccola Punta Bianca'. It is slightly oblong, mostly red, with a white tip.
Cherry Belle is a bright red-skinned round variety with a white interior. It is familiar in North American supermarkets.
Champion is round and red-skinned like the Cherry Belle, but with slightly larger roots, up to about convert|5|cm|0|abbr=on, and a milder flavor.
Red King has a mild flavor, with good resistance to club root, a problem that can arise from poor drainage.
Sicily Giant is a large heirloom variety from Sicily . It can reach up to two inches in diameter.
Snow Belle is an all-white variety of radish, similar in shape to the Cherry Belle.
White Icicle or just Icicle is a white carrot-shaped variety, around convert|10|-|12|cm|0|abbr=on long, dating back to the 16th century. It slices easily, and has better than average resistance to pithiness.
French Breakfast is an elongated red-skinned radish with a white splash at the root end. It is typically slightly milder than other summer varieties, but is among the quickest to turn pithy.
Plum Purple a purple- fuchsia radish that tends to stay crisp longer than average.
Gala and Roodbol are two varieties popular in the Netherlands in a breakfast dish, thinly sliced on buttered bread.
Easter Egg is not an actual variety, but a mix of varieties with different skin colors, typically including white, pink, red, and purple radishes. Sold in markets or seed packets under the name, the seed mixes can extend harvesting duration from a single planting, as different varieties may mature at different times.
Black Spanish or Black Spanish Round occur in both round and elongated forms, and are sometimes simply called the black radish or known by the French name ''Gros Noir d'Hiver. It dates in Europe to 1548,Aiton, William Townsend. (1812.) http://books.google.com/books? id=y4QCAAAAYAAJ& pg=PA129& dq=radish+black.spanish+date:1500-1835& as_brr=0 "Hortus Kewensis; Or, A Catalogue of the Plants Cultivated in the Royal Botanic Garden at Kew, Second Edition, Vol. IV" Longman, Hurst, Rees, Orme, and Brown: London. Page 129. Retrieved on 2007-09-28. and was a common garden variety in England and France during the early 19th century.Lindley, George. (1831.) http://books.google.com/books? id=DJqCT_QapToC& pg=PA570& dq=Noir+Gros+Rond+d%E2%80%99Hiver+date:1500-1840& as_brr=0#PPR3,M1 "A Guide to the Orchard and Kitchen Garden: Or, an Account of the Most Valuable Fruit and Vegetables Cultivated in Great Britain." Longman, Rees, Orme, Brown, and Green: London. Retrieved on 2007-09-28. It has a rough black skin with hot-flavored white flesh, is round or irregularly pear shaped,McIntosh, Charles. (1828.) http://books.google.com/books? id=zZ46AAAAMAAJ& pg=PA288& dq=radish+black.spanish+date:1500-1835& as_brr=0 "The Practical Gardener, and Modern Horticulturist." Thomas Kelly: London. Page 288. and grows to around convert|10|cm|0|abbr=on in diameter.
Daikon refers to a wide variety of winter radishes from Asia. While the Japanese name daikon has been adopted in English, it is also sometimes called the Japanese radish, Chinese radish, Oriental radish or mooli (in India and South Asia ).(2004.) http://dictionary.reference.com/browse/daikon "Daikon." The American Heritage Dictionary of the English Language, Fourth Edition , Houghton Mifflin Company, via dictionary.com. Retrieved on 2007-09-28. **McAffee warns that this site attempted to exploit a browser vulnerability. Daikon commonly have elongated white roots, although many varieties of daikon exist. One well known variety is April Cross, with smooth white roots. The New York Times describes Masato Red and Masato Green varieties as extremely long, well suited for fall planting and winter storage. The Sakurajima daikon is a hot-flavored variety which is typically grown to around convert|10|kg|abbr=on, but which can grow to convert|30|kg|abbr=on when left in the ground.(2002-02-10.) http://www.highbeam.com/doc/1P1-50139993.html "29 kg radish wins contest." Kyodo World News Service , via highbeam.com (fee for full access.) Retrieved on 2007-09-28.
The seeds of radishes grow in silique s (widely referred to as "pods"), following flowering that happens when left to grow past their normal harvesting period. The seeds are edible, and are sometimes used as a crunchy, spicy addition to salads. Some varieties are grown specifically for their seeds or seed pods, rather than their roots. The Rat-tailed radish, an old European variety thought to have come from East Asia centuries ago, has long, thin, curly pods which can exceed convert|20|cm|0|abbr=on in length. In the 17th century, the pods were often pickled and served with meat. The München Bier variety supplies spicy seeds that are sometimes served raw as an accompaniment to beer in Germany .Williams, Sally (2004) http://www.kitchengardeners.org/rat-tailed_radish.html "With Some Radishes, It's About The Pods", Kitchen Gardners International. Retrieved on June 21, 2008.
Nutritional value
nutritionalvalue | name=Radish, raw, root only | kJ=66| protein=0.68 g | fat=0.10 g | carbs=3.40 g | fiber=1.6 g | | sugars=1.86 g | iron_mg=0.34 | calcium_mg=25 | magnesium_mg=10 | phosphorus_mg=20 | potassium_mg=233 | zinc_mg=0.28 | vitC_mg=14.8 | pantothenic_mg=0.165 | vitB6_mg=0.071 | folate_ug=25 | thiamin_mg=0.012 | riboflavin_mg=0.039 | niacin_mg=0.254 | right=1 | source_usda=1 Radishes are rich in ascorbic acid , folic acid , and potassium . They are a good source of vitamin B6 , riboflavin , magnesium , copper , and calcium . One cup of sliced red radish bulbs provides approximately 20 calorie s, largely from carbohydrate s. http://nutritiondata.self.com/facts/vegetables-and-vegetable-products/2606/2
Uses
Cooking
The most commonly eaten portion is the napiform taproot , although the entire plant is edible and the tops can be used as a leaf vegetable . It can also be eaten as a sprouting|sprout .cite web|url= http://www.foodsubs.com/Sprouts.html#daikon sprout|title=Sprouts
The bulb of the radish is usually eaten raw, although tougher specimens can be steamed. The raw flesh has a crisp texture and a pungent, peppery flavor, caused by glucosinolate s and the enzyme myrosinase which combine when chewed to form allyl isothiocyanate s, also present in mustard plant|mustard , horseradish , and wasabi .cite book |title=Cruciferous Vegetables, Isothiocyanates and Indoles |publisher= International Agency for Research on Cancer |year=2004 |page=13 |isbn=978-92-832-3009-0
Radishes may be used in saladscite web | author = Radish Chefs | title = Radish Recipes | work = Radish Recipe Book | url = http://radishrecipes.org/ | accessdate = 2011-09-03, as well as in many European dishes.
Industry
The seeds of the Raphanus sativus species can be pressed to extract vegetable oil|seed oil . Wild radish seeds contain up to 48% oil content, and while not suitable for human consumption the oil is a potential source of biofuel .cite web|url= http://www.plantoils.in/uses/fuel/fuel.html|title=Plant Oils as Fuel: Radish oil The oilseed radish grows well in cool climates.cite web|url= http://www.covercrops.msu.edu/CoverCrops/O_Radish/oilseed_radish.htm|title=Oilseed radish
Culture
Citizens of Oaxaca, Mexico , celebrate the radish in a festival called Noche de los Rábanos ( Night of the Radishes ) on December 23 as a part of Christmas celebrations. Locals carve religious and popular figures out of radishes and display them in the town square.cite web|url= http://www.christmas-in-oaxaca.com/night-of-radish.htm|title=Christmas in Oaxaca
See also
Raphanin
Nanakusa-no-sekku
Notes
reflist|2
External links
commons|Raphanus sativus|Radish
http://www.plantnames.unimelb.edu.au/Sorting/Raphanus.html#sativus Multilingual taxonomic information from the University of Melbourne
http://digital.library.unt.edu/permalink/meta-dc-1562:1 Production of radishes hosted by the http://digital.library.unt.edu/browse/department/govdocs/ UNT Government Documents Department
http://biodiversitylibrary.org/name/Raphanus_sativus Discovered Bibliography (Raphanus sativus) in the Biodiversity Heritage Library