Overview

Comprehensive Description

Description

Annual, biennial or perennial herbs. Leaves lyrate-pinnatifid, ± glaucous. Flowers white, yellow, lilac or purplish, in terminal, ebracteate racemes. Sepals erect. Petals 4, unguiculate. Stamens 6. Fruit cylindric or beaded, indehiscent or breaking up transversely into 1-seeded joints; apex with a seedless beak. Seeds pitted.
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© Mark Hyde, Bart Wursten and Petra Ballings

Source: Flora of Zimbabwe

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Ecology

Associations

Foodplant / parasite
colony of Albugo candida parasitises live, discoloured, distorted leaf of Raphanus
Remarks: season: spring, early autumn

In Great Britain and/or Ireland:
Foodplant / spot causer
colony of Alternaria dematiaceous anamorph of Alternaria brassicae causes spots on live pod of Raphanus

Foodplant / open feeder
gregarious larva of Athalia glabricollis grazes on leaf (underside) of Raphanus
Other: major host/prey

Foodplant / gall
larva of Ceutorhynchus pleurostigma causes gall of stem (base) of Raphanus

Foodplant / spot causer
colony of Pseudocercosporella anamorph of Mycosphaerella capsellae causes spots on live leaf of Raphanus

Foodplant / open feeder
adult of Phaedon cochleariae grazes on live leaf of Raphanus
Remarks: season: 5-9

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Known predators

Raphanus (Raphanus (wild radish)) is prey of:
Lygus
Lepidoptera
Melanoplus
Hyadaphis
Myzus
Phyllotreta chalbeipennis
Macrosteles

Based on studies in:
USA: New Jersey (Agricultural)

This list may not be complete but is based on published studies.
  • D. J. Shure, Radionuclide tracer analysis of trophic relationships in an old-field ecosystem, Ecol. Monogr. 43(1):1-19, from p. 15 (1973).
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© SPIRE project

Source: SPIRE

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
Specimen Records:87
Specimens with Sequences:95
Specimens with Barcodes:76
Species:11
Species With Barcodes:11
Public Records:59
Public Species:8
Public BINs:0
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Source: Barcode of Life Data Systems (BOLD)

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Barcode data

Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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Wikipedia

Sakurajima radish

The Sakurajima radish or Sakurajima daikon (Japanese: 桜島大根, Sakurajima daikon) is a special cultivar of the Japanese radish named for its original place of cultivation, the former island of Sakurajima in Japan's Kagoshima Prefecture. It is the biggest radish variety in the world.[5] Its regular weight is about 6 kilograms (13 lb), although big ones can be as much as 45 kg (100 lb). It grows as large as 50 cm (20 in) in diameter.[6] It is also sometimes known in Japanese as shimadekon (しまでこん, "island daikon").

There are three varieties—early, middle, and late—but the most commonly encountered form is the last.[7] The seeding period is from last August to first September and the harvest season is from December to February. To reach full size, special care needs to be taken with the region's volcanic-ash soil.

Names[edit]

In English, the Sakurajima radish is also sometimes known as the Sakurajima island giant radish, the giant daikon, and the jumbo daikon.[8]

Uses[edit]

Sakurajima radish has a fine texture and is low in fiber. It is sweeter than other varieties of Japanese radish. In Japanese cuisine, it is typically prepared by simmering to produce dishes such as furofuki daikon.[9] Kiriboshi daikon and tsukemono are popular prepared foods which also employ the radish. The large size of tsukemono, senmaizuke, is sold in souvenir shops in Kagoshima.

History[edit]

There are three theories about its development:

  1. An origin from an original wild daikon in Sakurajima.
  2. An origin from hōryō daikon in Aichi Prefecture.
  3. An origin from kokubu daikon (hamanoichi daikon).

An 1804 mention of Kagoshima in reference to the giant Sakurajima radish shows it was cultured before then at least. The main production was north-west of Sakurajima but it was moved to the north later. About 1200 farm houses had about 200 hectares (490 acres) of growing area in sum total in the high season. Sakurajima radish is one of the most precious local commercial crops. Also, in every harvest season, the toikae (Kagoshima dialect for "market") was held in Kajiki (now part of Aira District) and people traded Sakurajima radishes with straw. However, the main crop was shifted to satsuma (mikan) from Sakurajima radishes, because the area of Sakurajima suffered so much damage from a 1914 eruption of the nearby volcano, decreasing the growing area to about 30 hectares (74 acres) by 1955. Furthermore, its growing area was decreased to about 1.5 hectares (3.7 acres) owing to ashfall between then and 2001.

The main growing districts of now are the suburbs of Kagoshima city and Kirishima city. Because of fewer eruptions recently, the growing area has been extended.

References[edit]

  1. ^ Huang Tseng-chieng & al. Flora of Taiwan, Vol. VI, p. 58. Epoch Publishing (Taipei), 1979. (English) & (Chinese)
  2. ^ Nakai.[1]
  3. ^ Makino.
  4. ^ L.H. Bailey.
  5. ^ Guinness World Records.[citation needed]
  6. ^ The New official guide: Japan. Japan National Tourist Organization. 1975. p. 837. ISSN 0077-8591. 
  7. ^ Useful Plants of Japan - Described and Illustrated. READ BOOKS. 2008. p. 20. ISBN 1-4086-3952-1. 
  8. ^ Porcher, Michel. Multilingual Multiscript Plant Name Database. "Sorting Raphanus names". University of Melbourne (Melbourne), 1995 (created) & 2010 (last modified). Accessed 22 Jun 2014.
  9. ^ "Furofukidaikon (ふろふき大根)" (in Japanese). Kikkoman. 
  • 今村知子 『かごしま文庫51 鹿児島の料理』 春苑堂出版、1999年、ISBN 4-915093-58-1 (Japanese)
  • 串間俊文 『かごしま文庫26 鹿児島の園芸植物』 春苑堂出版、1995年、ISBN 4-915093-33-6 (Japanese)
  • 橋村健一 『かごしま文庫13 桜島大噴火』 春苑堂出版、1994年、ISBN 4-915093-19-0 (Japanese)
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Raphanus

Raphanus (Latin for "radish"[3]) is a genus within the flowering plant family Brassicaceae. Linnaeus described three species within the genus: the cultivated radish (Raphanus sativus), the wild radish or jointed charlock (Raphanus raphanistrum), and the rat-tail radish (Raphanus caudatus). Various other species have been proposed (particularly related to the East Asian daikon varieties) and the rat-tail radish is sometimes considered a variety of R. sativus but no clear consensus has emerged.

Raphanus species grow as annual or biennial plants, with a taproot which is much enlarged in the cultivated radish. Unlike many other genera in the family Brassicaceae, Raphanus has indehiscent fruit that do not split open at maturity to reveal the seeds. The genus is native to Asia, but its members can now be found worldwide. Growing wild, they are regarded as invasive species in many regions.

Raphanus species are used as food plants by the larvae of some Lepidoptera species, including cabbage moth, Endoclita excrescens, the garden carpet, and the nutmeg.

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