Cold-hardy Citrus
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Cold-hardy Citrus
Cold-hardy citrus is citrus with increased frost tolerance and which may be cultivated far beyond traditional citrus growing regions. Citrus species and citrus hybrids typically described as cold-hardy generally display an ability to withstand wintertime temperatures below . Cold- hardy citrus may be generally accepted 'true' species (e.g. Satsuma mandarin, kumquat) or hybrids (e.g. citrange) involving various other citrus species. All citrus fruits are technically edible, though some have bitter flavors often regarded as unpleasant, and this variability is also seen in cold-hardy citrus fruits. Those listed as "inedible fresh" or "semi-edible" can (like all citrus) be cooked to make marmalade. Varieties Varieties of true citrus considered cold-hardy, ordered from most to least hardy: Interspecific hybrids Interspecific hybrid varieties considered cold-hardy, ordered from most to least hardy: See also * Citrus rootstock Citrus rootstock are plants used as rootstock f ...
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Citrange
The citrange (a portmanteau of ''citrus'' and ''orange'') is a citrus hybrid of the sweet orange and the trifoliate orange. The purpose of this cross was to attempt to create a cold hardy citrus tree (which is the nature of a trifoliate), with delicious fruit like those of the sweet orange. However, citranges are generally bitter. Citrange is used as a rootstock for citrus in Morocco, but does not prevent dry root rot or exocortis disease. Cultivars There are several named citrange cultivars, including the 'Carrizo' citrange and the 'Troyer' citrange. Both resulted from a hybrid between the trifoliate orange and the Washington navel orange. There is also a cultivar called 'Rusk' which resulted from a cross between a Ruby orange and a trifoliate orange. See also * Citrangequat *List of citrus diseases *University of California, Riverside Citrus Variety Collection The UCR Citrus Variety Collection (CVC) is one of the most important collections of citrus diversity in the w ...
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Citrus Rootstock
Citrus rootstock are plants used as rootstock for citrus plants. A rootstock plant must be compatible for scion grafting, and resistant to common threats, such as drought, frost, and common citrus diseases. Principal rootstocks Five types of rootstock predominate in temperate climates where cold or freezing weather is not probable, especially Florida and southern Europe: * Sour orange: the only rootstock that truly is an orange (the '' Citrus'' × ''aurantium'' or bitter orange). It is vigorous and highly drought-resistant. * ''Poncirus trifoliata'': a close relative of the genus ''Citrus'', sometimes classified as ''Citrus trifoliata''. It is especially resistant to cold, the tristeza virus, and the fungus '' Phytophthora parasitica'' (root rot), and grows well in loam soil. Among its disadvantages are its slow growth—it is the slowest growing rootstock—and its poor resistance to heat and drought. It is primarily used in China, Japan, and areas of California with heavy soils. ...
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Citrus Myrtifolia
__NOTOC__ ''Citrus myrtifolia'', the myrtle-leaved orange tree, is a species of ''Citrus'' with foliage similar to that of the common myrtle. It is a compact tree with small leaves and no thorns which grows to a height of and can be found in Malta, Libya, the south of France, and Italy (primarily in Liguria, typically Savona, and also in Tuscany, Sicily, and Calabria). The fruit of the tree resemble small oranges. It has a bitter flavor and is commonly called by its Italian name, ''chinotto'' (). It is an essential flavoring agent of most Italian amari, of the popular Campari apéritif, and of several brands of carbonated soft drinks that are generically called "chinotto". ''Citrus myrtifolia'' is sometimes planted in gardens. Due to its compactness, it can also be planted in a pot or other container. Synonyms * ''Citrus aurantium var. myrtifolia'' Ker-Gawl. in Bot. Reg. vol. 4, t. 346, in textu. 1818. * ''Citrus pumila'' Marc. in Izv. Sochin. Obl. Sukhum. Stants. vol. ...
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Calamondin
Calamansi (''Citrus'' × ''microcarpa''), also known as calamondin, Philippine lime, or Philippine lemon, is an economically important citrus hybrid predominantly cultivated in the Philippines. It is native to the Philippines, Borneo, Sumatra, and Sulawesi in Indonesia in Southeast Asia, as well as southern China and Taiwan in East Asia. Calamansi is ubiquitous in traditional Filipino cuisine. It is naturally very sour, and is used in various condiments, beverages, dishes, marinades, and preserves. Calamansi is also used as an ingredient in Malaysian and Indonesian cuisines. Calamansi is a hybrid between kumquat (formerly considered as belonging to a separate genus ''Fortunella'') and another species of ''Citrus'' (in this case probably the mandarin orange). Names Calamansi is the Philippine English spelling of Tagalog ''kalamansi'' (), and is the name by which it is most widely known in the Philippines. In parts of the United States (notably Florida), calamansi is also k ...
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Rangpur (fruit)
Rangpur, ''Citrus'' × ''limonia'' or ''Citrus reticulata'' × ''medica'', sometimes called the rangpur lime, mandarin lime or lemandarin, is a hybrid between the mandarin orange and the citron. It is a citrus fruit with a very acidic taste and an orange peel and flesh. Common names Common names for this fruit include rangpur, the name of a city now in Bangladesh. Rangpur is also known in the Indian subcontinent as ''Sylhet lime'' (after another region also now in Bangladesh), ''surkh nimboo'', and ''sharbati''. It is known as a ''canton-lemon'' in South China, a ''hime-lemon'' in Japan, as ''limão-capeta'', ''limão-cravo'', ''limão-rosa'' or ''limão-galego'' in Brazil and Portugal (namely in the Azores), and ''mandarin-lime'' in the United States, and similarly ''limón-mandarina'' (lemon tangerine) in Costa Rica because of its shape and the way its skin is peeled. History ''Citrus'' × ''limonia'' was introduced into Florida in the late nineteenth century by Reasoner Brothe ...
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Orangequat
The madarinquat, also misleadingly called orangequat, is any cross between a mandarin and a kumquat (Fortunella crassifolia). Mandarinquats are members of the citrofortunella group. The variety Nippon orangequat was first introduced in 1932 by Dr. Eugene May of the USDA as a hybrid between the Meiwa kumquat and the Satsuma mandarin. A second variety, the Indio mandarinquat, was discovered as an open-pollinated seedling from a Nagami kumquat with an unknown pollen parent. Description This is a small, round, orange fruit, which is larger than a kumquat. The fruit ranges from in circumference. Mandarinquat trees are small to medium in size; the leaves are usually long and narrow and dark green in color. The trunk and branches of the trees are slightly narrow, given the size of the trees. These trees can be seen with fruits on them through many of the colder months, since that is the season for Mandarinquat growing. Mandarinquat have not been genetically altered to be resistant ...
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Sudachi
Sudachi (''Citrus sudachi''; Japanese: スダチ or 酢 橘) is a small, round, green citrus fruit of Japanese origin that is a specialty of Tokushima Prefecture in Japan. It is a sour citrus, not eaten as fruit, but used as food flavoring in place of lemon or lime. Genetic analysis shows it to be the product of a cross between a yuzu and another citrus akin to the koji and tachibana orange. General Cultivated for centuries in parts of Japan, and perhaps nearly as well known as the yuzu in that country, it has been considered an "indispensable companion" to eating matsutake mushroom. The , the squeezed citrus juice used as an alternative to vinegar, uses ''sudachi'' among other bitter oranges (''kabosu'' or yuzu juices, and ''daidai'') as an ingredient. The fruit is also the specialty and symbol of the prefecture of Tokushima, which produces 98% of the fruit sudachi in Japan., citing 2011 Ministry of Agriculture figures for Tokushima's 98% share and 2008 data from ''Tokushima n ...
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Yuzu
Yuzu (''Citrus junos'', from Japanese or ) is a citrus fruit and plant in the family Rutaceae of East Asian origin. Yuzu has been cultivated mainly in East Asia, though recently also in New Zealand, Australia, Spain, Italy, and France. It is believed to have originated in central China as an F1 hybrid of the ''mangshanyeju'' subspecies of mandarin orange and the ichang papeda. and Supplement Description This fruit resembles a small grapefruit with uneven skin and can be either yellow or green depending on the degree of ripeness. ''Yuzu'' fruits, which are very aromatic, typically range between in diameter but can be as large as a regular grapefruit (up to , or larger). Yuzu forms an upright shrub or small tree, which commonly has many large thorns. Leaves are notable for a large, leaf-like petiole, resembling those of the related makrut lime and ichang papeda, and are heavily scented. Yuzu closely resembles sudachi (''Citrus sudachi'', a Japanese citrus from Toku ...
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Shangjuan
The ''shangjuan'', or Ichang lemon (''Citrus cavaleriei × C. maxima''), is a cold-hardy citrus fruit and plant originating in East Asia East Asia is the eastern region of Asia, which is defined in both geographical and ethno-cultural terms. The modern states of East Asia include China, Japan, Mongolia, North Korea, South Korea, and Taiwan. China, North Korea, South Korea and .... {{Taxonbar, from=Q7488556 Citrus hybrids Fruits originating in East Asia ...
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Kabosu
Kabosu (カボス or 臭橙; binomial name: ''Citrus sphaerocarpa'') is a citrus fruit of an evergreen broad-leaf tree in the family Rutaceae. It is popular in Japan, where its juice is used to improve the taste of many dishes, especially cooked fish, sashimi, and hot pot dishes. Characteristics Kabosu is a juicy citrus fruit closely related to yuzu. Its juice has the sharpness of lemon, and it is used instead of vinegar in some Japanese dishes. It grows on a flowering tree with sharp thorns. The fruit is harvested when still green, but if left to ripen it turns yellow. It is often confused with similar citrus such as sudachi, but can easily be distinguished by the apex of the fruit where the pistil has fallen off, which is a slightly raised torus shape. Origin Thought to be an ichang papeda – bitter orange hybrid, the kabosu was brought over from China in the Edo period and became a popular fruit in Japan. It is produced in most areas of Ōita Prefecture, particularly in T ...
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Grapefruit
The grapefruit (''Citrus'' × ''paradisi'') is a subtropical citrus tree known for its relatively large, sour to semi-sweet, somewhat bitter fruit. The interior flesh is segmented and varies in color from pale yellow to dark pink. Grapefruit is a citrus hybrid originating in Barbados. It is an accidental cross between the sweet orange (''C. sinensis'') and the pomelo or shaddock (''C. maxima''), both of which were introduced from Asia in the 17th century. It has also been called the ''forbidden fruit''. In the past it was referred to as the ''pomelo'', but that term is now mostly used as the common name for ''Citrus maxima''. In 2019, world production of grapefruits (combined with pomelos) was 9.3 million tonnes, of which 53% was in China. Other significant producers include Vietnam, United States and Mexico. Description The evergreen grapefruit trees usually grow to around tall, although they may reach . The leaves are long (up to ), thin, glossy, and dark green. They produc ...
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