Citrumelo

This article needs additional citations for verification. Please help by adding citations to reliable sources. Unsourced material may be challenged and removed.
Find sources: – · · · scholar · JSTOR (January 2017) (Learn how and when to remove this template message)

Citrumelo
Hybrid parentage	Poncirus trifoliata (Japanese bitter orange) x Citrus × paradisi (grapefruit)

Citrumelo or Citromelo (X Citroncirus spp.) is also called Swingle citrumelo trifoliate hybrid, because it is a cold hardy citrus hybrid between a 'Duncan' grapefruit and a trifoliate orange (Poncirus trifoliata (L.) Raf.), developed by Walter Tennyson Swingle.

Citrumelo is widely employed as a citrus rootstock,^[1] being resistant to the severe citrus tristeza virus and to the Phytophthora root rot as well as to blight, cold, and citrus nematode.^[2] It produces yellow fruit which taste (if added sugar) and smell like an ordinary grapefruit.^[3] The trees are very hardy and can survive temperatures as low as 30s (Fahrenheit).^[4]

Taxonomy[]

Trifoliate orange, according to Swingle, belongs to a citrus related genera, called Poncirus, while grapefruit equivocally belongs to the genus citrus, hence the botanical name X citroncirus is a hybrid genus, derived from citrus and poncirus.

References[]

^ Francisco de Assis Alves Mourão Filho; Eduardo Augusto Girardi; Hilton Thadeu Zarate do Couto (April 2009). "'Swingle' citrumelo propagation by cuttings for citrus nursery tree production or inarching". Scientia Horticulturae. 120 (2): 207–212. doi:10.1016/j.scienta.2008.11.001.
^ Citrumelo by Citrus Variety Collection
^ "Citrumelo of Nottingham". homecitrusgrowers.co.uk. Retrieved 17 January 2017.
^ "Citrumelo Hardy Grapefruit". onegreenworld.com. Retrieved 17 January 2017.

External links[]

Citroncirus webberi - J.W.Ingram.&H.E.Moore.

v t Citrus
True species	Australian and Papuan wild limes Citron Clymenia Ichang papeda Kaffir lime Kumquat Common mandarin Mangshanyegan Pomelo Ryukyu mandarin
Major hybrids	Grapefruit Lemon Lime Orange
True and hybrid cultivars	Alemow Amanatsu Bergamot orange Bizzaria Bitter orange Blood lime Blood orange Byeonggyul Biasong Cam sành Cara cara navel Citrange Citrumelo Clementine Daidai Dekopon Encore Fairchild tangerine Florentine citron Forbidden fruit Haruka Hassaku orange Hebesu Heen naran Hyuganatsu Imperial lemon Indian wild orange Iyokan Jabara Jaffa orange Jamaican tangelo Kabbad Kabosu Kakadu lime Kalpi Kanpei Kawachi Bankan Key lime Khasi papeda Kinkoji unshiu Kinnow Kishu mikan Kiyomi Kobayashi mikan Koji Komikan Kuchinotsu No. 37 Laraha Lemonade fruit Limón de Pica Lumia Mandelo Mandora Melanesian papeda Melogold Meyer lemon Micrantha Midknight Valencia Orange Murcott Myrtle-leaved orange tree New Zealand grapefruit Ōgonkan Orangelo/Chironja Oroblanco Palestinian sweet lime Persian lime Pixie mandarin Pompia Ponderosa lemon Ponkan Rangpur Reikou Rhobs el Arsa Rough lemon Samuyao Sanbokan Satsuma mandarin Setoka Shangjuan Shonan Gold Smith Red Valencia Sudachi Suruga yuko Sweet lemon Sweet limetta Tangelo Tangerine Tangor Valencia orange Variegated pink lemon Volkamer lemon Winged lime Xã Đoài orange Yuukou mandarin Yuzu
Citrons	Balady citron Corsican citron Diamante citron Fingered citron/Buddha's hand Greek citron Moroccan citron Yemenite citron
Mandarin oranges	Cleopatra mandarin Shīkwāsā Nanfengmiju Tachibana Willowleaf orange
Papedas	Celebes papeda Citrus halimii/Mountain "citron" Ichang papeda
Pomelos	Banpeiyu Dangyuja
Kumquat hybrids (× Citrofortunella)	Calamansi Citrangequat Limequat Orangequat Procimequat Sunquat Yuzuquat
Sahul citrus (former Microcitrus, Eromocitrus, Clymenia and Oxanthera genera)	Australian outback lime Australian round lime Brown River finger lime Desert lime Maiden's wild lime Mount White lime (Microcitrus) New Guinea wild lime Russell River lime Clymenia Orange-flowered oxanthera Large-leaf oxanthera Wavy-leaf oxanthera Oxanthera brevipes
Related genera (perhaps properly Citrus)	Poncirus/Trifoliate orange
Drinks	Calamansi juice Chūhai Curaçao Dried lime tea (noomi basra) Grapefruit juice Lemonade Limeade Orange juice Yuja-hwachae Yuja tea
Products	Calcium citrate Citric acid Lemonene Limonene Neroli Orange flower water Orange oil Orangeat Succade Zest
Diseases	Black spot Canker CTV/Tristeza Exocortis Greening Mal secco Phytophthora citricola
Citrus botanists	Clara H. Hasse Robert Willard Hodgson Lena B. Smithers Hughes David Mabberley Clément Rodier Robert Soost Walter Tennyson Swingle Chōzaburō Tanaka Ikuro Takahashi Johann Christoph Volkamer Herbert John Webber
Related topics	The Citrus Industry Citrus production Citrus rootstock Citrus taxonomy Cold-hardy citrus Hesperidium Japanese citrus List of citrus fruits Mother Orange Tree Orangery University of California Citrus Experiment Station University of California, Riverside Citrus Variety Collection
Category Production Commons