Ōgonkan

Ki-mikan (黄蜜柑) or Ōgonkan (黄金柑)
	Ōgonkan grown in Ehime Prefecture
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Sapindales
Family:	Rutaceae
Genus:	Citrus
Species:	C. flaviculpus
Binomial name
	Citrus flaviculpus ex. Tanaka;

Ōgonkan (

mikan") are the common names for a small sized variety of Japanese citrus

, whose rind is of a characteristic "golden" bright yellow color.

The variety has been published as the species Citrus flaviculpus by Chōzaburō Tanaka in his 160-species scheme, but this is considered an effort of a "splitter", as opposed to Swingle's classification system which is generally preferred in the West.

Alternate spellings (romanizations) include "Ougonkan"^[1] or "Ogon-kan".^[2] It has also been called "Golden orange" in Kanagawa Prefecture.

History

The variety has long been known in

mikan") but, precise origins are unknown.^[3]

According to one assertion, it has been known in Higashi-ichiki-chō (

Hideyoshi's invasions of Korea in the late 16th century.^{[citation needed]} It has been suggested that the name "Ōgonkan" was dubbed by Harutarō Muramatsu (村松春太郎) who introduced the variety to Ehime Prefecture,^{[citation needed}

] but this too is poorly documented.

Fruit

The small fruit has a diameter of 4 to 5 cm (1.6 to 2.0 in), weighing 60 to 80 g (2.1 to 2.8 oz).

self-incompatibility) traits have been observed.^[6]

Its fragrance is similar to the Hyuganatsu, a larger citrus that is also bright yellow,^[4] but somewhat sweeter by comparison. Like the Hyuganatsu, the white pith (albedo) may be eaten.^[4]

The rind's cold-pressed oil has been studied for fragrance factors, and was found to contain

Gamma-terpinene (10%), trans beta-farnesene, and myrcene,^[7] showing similarity to Hyuganatsu's peel profile, though with quantitative differences in concentrations.^[7]

Regional production

According to government (

Numazu, Shizuoka, Uwajima, Seiyo, Imabari (Ehime pref.), and Kōnan, Kōchi.^[8]

Hybrid crossing

The Ōgonkan was the pollinating parent for the hybrid cultivar Hime-Koharu (媛小春) developed by Ehime Prefecture, and was the seed parent of Shonan Gold developed by Kanagawa Prefecture.^[1]^[2]^[4]^[9]

Notes

^ ^a ^b Shigematsu et al. 2008
^ ^a ^b Manago et al. 2004
^ Manago et al. 2004, p. 36. This source further cites: 岩政, 正男 (Iwamasa, Masao) (1976). 柑橘の品種 (Kankitsu no hinshu). 静岡県柑橘農業協同組合連合会. p. 229.{{cite book}}: CS1 maint: multiple names: authors list (link), 田中, 諭一郎 (Tanaka, Yuichiro) (1980). 日本柑橘図譜続篇(Nihon kankitsu zufu zokuhen). 養賢堂. pp. 78–80.{{cite book}}: CS1 maint: multiple names: authors list (link), and 日本果樹種苗協会 (Nihon kaju shubyō kyōkai (2003). 特産のくだもの　マンダリン類 (Tokusan no kudamono mandarin rui. Vol. 1. 日本果樹種苗協会. pp. 38–45.
^ ^a ^b ^c ^d Choi & Sawamura 2001, p. 48
^ Manago et al. 2004, p. 36
^ Yamamoto, Kubo & Tominaga 2006
^ ^a ^b Choi & Sawamura 2001
^ ^a ^b 農林水産省(MAFF). "特産果樹生産出荷実績調査 (Tokusan kaju seisan shukka jisseki chōsa)". Retrieved February 1, 2012. 都道府県別平成22年産 (Citrus production statistics by prefecture, FY 2010) Excel
^ MAFF. "登録品種データベース (Register kind database)". Retrieved 2012-10-25. 媛小春（Hime-Koharu 17067）湘南ゴールド（Shonan Gold 11469） (English page links provided, but without any substantive description)

References

Choi, Hyang-Sook; Sawamura, Masayoshi (2001). "Volatile Flavor Components of Ripe and Overripe Ki-mikans (Citrus flaviculpus Hort. ex Tanaka) in Comparison with Hyuganatsu (Citrus tamurana Hort. ex Tanaka)". Bioscience, Biotechnology, and Biochemistry. 65 (1): 48–55.
ISSN 1347-6947
. JGLOBAL ID:200902119536771254.

Yamamoto, Masashi; Kubo, Tatsuya; Tominaga, Shigeto (2006). "Self- and Cross-incompatibility of Various Citrus Accessions". Journal of the Japanese Society for Horticultural Science. 75 (5): 372–378.
ISSN 1880-358X
.
- 山本雅史, 久保達也, 冨永茂人, 「カンキツにおける自家および交雑不和合性」園芸学会雑誌 75巻5号(2006年)

In Japanese with English abstracts

真子, 正史; 鈴木, 伸一; 鈴木, 誠; 浅田, 真一 (2004). カンキツ新品種'湘南ゴールド. 神奈川県農業総合研究所報告 (in Japanese). 145: 35–41. JGLOBAL ID:200902245650237565. (w/English title and abstract) Agriknowledge (with PDF link); Agri-kanagawa (pdf)
=Manago, Masafumi; Suzuki, Sin-ichi; Suzuki, Makoto; Asada, Shin-ichi (2004). "Kankitsu shin hinshu shōnan gōrudo" [A New Citrus Cultivar 'Shonan-gold'] (agris). Bulletin of the Kanagawa Prefectural Agricultural Research Institute. 145: 35–41.
ISSN 0388-8231
.

重松幸典; 喜多景治; 薬師寺弘倫; 石川啓; 石川啓 (March 2008). "カンキツ新品種'媛小春'について". 愛媛県立果樹試験場研究報告. 22: 5–8., JGLOBAL ID:200902281400290696, (pdf)
=Shigematsu, Yukinori; Kita, Kageharu; Yakushiji, H.; Ishikawa, K (March 2008). "The New Citrus cultivar 'Himekoharu'". Bulletin of Ehime Fruit Tree Experiment Station. 22. Nakata, H.: 5–8.
ISSN 0389-2867
.

External links

Registration kind database (MAFF cultivar registration database. Available in English with limited information.

[Shigematsu-himekoharu-1] Shigematsu et al. 2008

[manago-shonangold-2] Manago et al. 2004

[3] Manago et al. 2004, p. 36. This source further cites: 岩政, 正男 (Iwamasa, Masao) (1976). 柑橘の品種 (Kankitsu no hinshu). 静岡県柑橘農業協同組合連合会. p. 229.{{cite book}}: CS1 maint: multiple names: authors list (link), 田中, 諭一郎 (Tanaka, Yuichiro) (1980). 日本柑橘図譜続篇(Nihon kankitsu zufu zokuhen). 養賢堂. pp. 78–80.{{cite book}}: CS1 maint: multiple names: authors list (link), and 日本果樹種苗協会 (Nihon kaju shubyō kyōkai (2003). 特産のくだもの　マンダリン類 (Tokusan no kudamono mandarin rui. Vol. 1. 日本果樹種苗協会. pp. 38–45.

[choi-sawam48-4] Choi & Sawamura 2001, p. 48

[5] Manago et al. 2004, p. 36

[6] Yamamoto, Kubo & Tominaga 2006

[choi-sawamura-7] Choi & Sawamura 2001

[maff2010stat-prefectural-8] 農林水産省(MAFF). "特産果樹生産出荷実績調査 (Tokusan kaju seisan shukka jisseki chōsa)". Retrieved February 1, 2012. 都道府県別平成22年産 (Citrus production statistics by prefecture, FY 2010) Excel

[9] MAFF. "登録品種データベース (Register kind database)". Retrieved 2012-10-25. 媛小春（Hime-Koharu 17067）湘南ゴールド（Shonan Gold 11469） (English page links provided, but without any substantive description)

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