Actinidia chinensis | |
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Fruit | |
Foliage | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Ericales |
Family: | Actinidiaceae |
Genus: | Actinidia |
Species: | A. chinensis |
Binomial name | |
Actinidia chinensis | |
Varieties [1] | |
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Actinidia chinensis, known commercially as the golden kiwifruit, is a fruiting vine native to China. It is one of some 40 related species of the genus Actinidia , and closely related to Actinidia deliciosa , [2] which is the source of the most common commercial kiwifruit. [2] [3] Fruit colour may vary from green to lime green or gold, depending on breeding. [2]
Actinidia chinensis has a smooth, bronze skin, with a beak shape at the stem attachment. Flesh colour varies from bright green to a clear, intense yellow. [2] This species is sweeter and more aromatic in flavour compared to A. deliciosa, similar to some subtropical fruits. [2] One of the most attractive varieties has a red 'iris' around the centre of the fruit and yellow flesh outside. [4] The yellow fruit obtains a higher market price and, being less hairy than the fuzzy kiwifruit, is more palatable for consumption without peeling. [2] [4] A commercially viable variety of this red-ringed kiwifruit, patented as EnzaRed, is a cultivar of the Chinese hong yang variety. [5]
'Hort16A' is a golden kiwifruit cultivar marketed worldwide, first as Zespri Gold, [2] then as SunGold. [4] This cultivar suffered significant losses in New Zealand from late 2010 to 2013 due to the PSA bacterium. A new cultivar of golden kiwifruit, 'Zesy002', was found to be more disease-resistant and most growers changed to this cultivar, with its worldwide demand continuing into 2019. [6]
In its native habitat Actinidia chinensis grows in thickets, thick (oak) forests (e.g. Quercus aquifolioides, Quercus oxyodon, Quercus lamellosa ), and light secondary forests and bushland. A. chinensis prefers slopes and likes also to grow in ravines, top heights of 200–230 m (660–750 ft), relative to the local microclimate. In Western gardens it may range 30 feet (9.1 m) in all directions, making it unsuitable for all but the largest spaces unless pruned back hard at the end of every growing season.[ citation needed ]
Three varieties are accepted. [1]
The origin of Actinidia chinensis is from Hubei or Sichuan, China exported to New Zealand in 1904. [2] In China, Actinidia chinensis is dispersed in the entire southeast of the country. [3] It was first grown commercially in New Zealand, [2] where it has been bred commercially as the variety, Actinidia deliciosa . [2]
Herbarium specimens, but not plants, were forwarded to the Royal Horticultural Society by the British plant hunter Robert Fortune, from which Jules Émile Planchon named the new genus in the London Journal of Botany, 1847. Charles Maries, collecting for Messrs Veitch noted it in Japan, but the introduction to Western horticulture was from E.H. Wilson, who sent seeds collected in Hubei to Veitch in 1900. [7]
The fruits – about the size of a chicken egg – are edible, providing a rich source of vitamin C and dietary fiber. [2] [4]
Kiwifruit, or Chinese gooseberry, is the edible berry of several species of woody vines in the genus Actinidia. The most common cultivar group of kiwifruit is oval, about the size of a large hen's egg: 5–8 centimetres in length and 4.5–5.5 cm in diameter. Kiwifruit has a thin, fuzzy, fibrous, tart but edible, light brown skin and light green or golden flesh with rows of tiny, black, edible seeds. The fruit has a soft texture with a sweet and unique flavour.
Actinidia is a genus of woody and, with a few exceptions, dioecious plants native to temperate eastern Asia, occurring throughout most of China, Taiwan, Korea, and Japan, and extending north to southern areas of Russian Far East and south into Indochina. The genus includes shrubs growing to 6 metres tall, and vigorous, strong-growing vines, growing up to 30 m (100 ft) in tree canopies. They mostly tolerate temperatures down to around −15 °C (5 °F), and some are much hardier.
Cornus kousa is a small deciduous tree 8–12 m (26–39 ft) tall, in the flowering plant family Cornaceae. Common names include kousa, kousa dogwood, Chinese dogwood, Korean dogwood, and Japanese dogwood. Synonyms are Benthamia kousa and Cynoxylon kousa. It is a plant native to East Asia including Korea, China and Japan. Widely cultivated as an ornamental, it is naturalized in New York State.
Calycanthus, called sweetshrub, is a genus of flowering plants in the family Calycanthaceae. The genus includes two to four species depending on taxonomic interpretation; three are accepted by most 21st century sources.
HortResearch was a Crown Research Institute of New Zealand. The focus of research in this company was mainly in the development of new fruit varieties and other food products. It was probably most recognised for its plant breeding of various kiwifruit varieties, including new cultivars of Actinidia (genus) chinensis and arguta (species).
Actinidia arguta, the hardy kiwi or kiwiberry, is a perennial vine native to Japan, Korea, Northern China, and the Russian Far East. It produces a small kiwifruit without the hair-like fiber covering the outside, unlike most other species of the genus.
Ernest Henry "Chinese" Wilson, better known as E. H. Wilson, was a notable British plant collector and explorer who introduced a large range of about 2,000 Asian plant species to the West; some sixty bear his name.
Actinidia deliciosa, the fuzzy kiwifruit, is a fruiting vine native to Southern China. Other species of Actinidia are also found in China and range east to Japan and north into southern areas of Russian Far East. This species grows naturally at altitudes between 600 and 2,000 metres.
Rosa chinensis, known commonly as the China rose, Chinese rose, or Bengal rose, is a member of the genus Rosa native to Southwest China in Guizhou, Hubei, and Sichuan Provinces. The first publication of Rosa chinensis was in 1768 by Nikolaus Joseph von Jacquin in Observationum Botanicarum, 3, p. 7 & plate 55.
Actinidain is a type of cysteine protease enzyme found in fruits including kiwifruit, pineapple, mango, banana, figs, and papaya. This enzyme is part of the peptidase C1 family of papain-like proteases.
Fusarium acuminatum is a fungal plant pathogen.
Actinidia kolomikta, the kolomikta, miyamatatabi, super-hardy kiwi, or variegated-leaf hardy kiwi, is a species of flowering plant in the family Actinidiaceae, native to temperate mixed forests of the Russian Far East, Korea, Japan and China.
Kiwifruit or kiwi is a major horticultural export earner for New Zealand. New Zealand developed the first commercially viable kiwifruit and developed export markets, creating the demand for the fruit that exists today. Today New Zealand is the third largest kiwifruit producing country, next to China and Italy, and holds approximately 30% of the market share. In the 2008–2009 season the value of New Zealand kiwifruit exports was NZ$1.45 billion.
Zanthoxylum armatum, also called winged prickly ash or rattan pepper in English, is a species of plant in the family Rutaceae. It is an aromatic, deciduous, spiny shrub growing to 3.5 metres (11 ft) in height, endemic from Pakistan across to Southeast Asia and up to Korea and Japan. It is one of the sources of the spice Sichuan pepper, and also used in folk medicine, essential oil production and as an ornamental garden plant.
Tilia tuan is a species of flowering plant found in forests at elevations of 1200–2400 m in the central Chinese provinces of Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangsu, Jiangxi, Sichuan, Yunnan, and Zhejiang. The species has long been regarded as the most variable lime within China, acquiring numerous synonyms; three varieties are currently recognized. The tree was first described by Henry who discovered it in 1888.
Allan Ross Ferguson is a New Zealand botanist who has made significant contributions in the field of kiwifruit scientific investigation. The standard author abbreviation A.R.Ferguson is used to indicate this person as the author when citing a botanical name.
Zespri International Limited is the largest marketer of kiwifruit in the world, selling in over 50 countries. Its international headquarters is in Mount Maunganui, New Zealand. However, it has licensed growers in Australia, France, Greece, Italy, Japan, and South Korea, with trials in place in several other countries. Kiwifruit from New Zealand is available from May to October. To satisfy year-round consumer demand, Zespri markets kiwifruit from Italy from November to January.
The gold kiwifruit or yellow kiwi is a variety of kiwifruit developed by the company Zespri International Ltd. The yellow kiwi is a different species, but of the same genus as, the green variety.
Actinidia eriantha is a species of flowering plant in the Chinese gooseberry family Actinidiaceae, native to southern China. A large climbing shrub, it is found in low mountain forests and grassy thickets at elevations from 200 to 1,000 m. It fruits in November, which has precluded its development as a commercial crop.
Actinidia henryi is a species of flowering plant in the Chinese gooseberry family Actinidiaceae, native to southern China. A semi-evergreen climbing shrub, it is found in mountain forests and thickets at elevations from 1,400 to 2,500 m. It has the lowest known vitamin C content of any kiwifruit.