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Coconut

The '''Coconut Palm''' (''Cocos nucifera'') is a member of the Family Arecaceae (palm family). It is the only species in the genus ''Cocos'', and is a large palm, growing to 30 m tall, with pinnate leaf|leaves 4-6 m long, pinnae 60-90 cm long; old leaves break away cleanly leaving the trunk (botany)|trunk smooth. The term '''coconut''' refers to the nut of the '''coconut palm'''. An alternate spelling is '''cocoanut'''. The coconut palm is grown throughout the tropics|tropical world, for decoration as well as for its many culinary and non-culinary uses; virtually every part of the coconut palm has some human uses. The coconut has spread across much of the tropics, probably aided in many cases by seafaring peoples. The fruit is light and buoyant and presumably spread significant distances by marine currents. Fruits collected from the sea as far north as Norway have been found to be viable (and subsequently germinated under the right conditions). In the Hawaiian Islands, the coconut is regarded as a Polynesian introduction, first brought to the islands by early Polynesian voyagers from their homelands in the Oceania|South Pacific. They are now ubiquitous to most of the planet between 26ºN and 26ºS. The flowers of the coconut palm are polygamomonoecious, with both male and female flowers in the same inflorescence. Flowering occurs continuously, with female flowers producing seeds. Coconut palms are believed to be largely cross-pollination|pollinated, although some dwarf varieties are self-pollinating. Coconuts have made several appearances in entertainment, mostly in animated cartoons and films like ''Monty Python and the Holy Grail.''

Origins

The origins of this plant are the subject of controversy, with most authorities claiming it is native to South Asia (particularly the Ganges Delta), while others claim its origin is in northwestern South America. Fossil records from New Zealand indicate that small, coconut-like plants grew there as long as 15 million years ago. Even older fossils have been uncovered in Rajasthan, Tamil Nadu, Kerala (Kerala means "land of coconut palms"), Maharashtra, (India) and the oldest known so far in Khulna, Bangladesh.

Cultivation

The coconut palm thrives on sandy soils and is highly tolerant of salinity. It prefers areas with abundant sunlight and regular rainfall (1,500 to 2,500 mm annually), which makes colonizing shorelines of the tropics relatively straightforward.Species Profiles for Pacific Island Agroforestry: ''Cocos nucifera'' (pdf file) Coconuts also need high humidity (70–80%+) for optimum growth, which is why they are rarely seen in areas with low humidity, like the Mediterranean, even where temperatures are high enough (regularly above 24°C). They are very hard to establish in dry climates and cannot grow there without frequent irrigation; in drought conditions, the new leaves do not open well, and older leaves may become desiccated; fruit also tends to be shed. They may grow but not fruit properly in areas where there is not sufficient warmth, like Bermuda. Coconut palms require warm conditions for successful growth, and are intolerant of cold weather. Optimum growth is with a mean annual temperature of 27°C(80.6°F), and growth is reduced below 21°C(69.8°F). Some seasonal variation is tolerated, with good growth where mean summer temperatures are between 28–37 °C (82.4-98.6 °F), and survival as long as winter temperatures are above 4–12 °C (39.2-53.6 °F); they will survive brief drops to 0 °C(32°F). Severe frost is usually fatal, although they have been known to recover from temperatures of -4 °C(24.8°F). Plant densities in Vanuatu for copra production are generally 9 meter, allowing a tree density of 100-160 trees per hectare.

Pests and diseases

> Coconuts are susceptible to the phytoplasma disease lethal yellowing. One recently selected cultivar, Maypan coconut palm|'Maypan', has been bred for resistance to this disease. The fruit may also be damaged by eriophyid mites. The coconut is also used as a food plant by the larvae of many Lepidoptera (butterfly and moth) species, including the following ''Batrachedra spp'': ''B. arenosella'', ''B. atriloqua'' (feeds exclusively on ''Cocos nucifera''), ''B. mathesoni'' (feeds exclusively on ''Cocos nucifera''), and ''B. nuciferae''. Brontispa longissima (the "Coconut leaf beetle") feeds on young leaves and damages seedlings and mature coconut Arecaceae|palms. On September 27, 2007, Philippines' Metro Manila and 26 provinces were quarantined due to having been infested with this pest (to save the 0-million Philippine coconut industry).Inquirer.net, Beetles infest coconuts in Manila, 26 provincesIn Kerala the major pests of Coconut are the Eriophyid mite, the Rhinoceros Beetle, the Red Palm Weevil and the Coconut Leaf caterpillar. The Eriophyid mite ( ''Eriophyes guerreronis'' )is devastating and can cause damages up to 90% in coconut production. The immature nuts are infested and desapped by staying in the portion covered by the Perianth of the immature nut. Subsequently the nuts drop off or survive deformed. Spraying with Wettable Sulfur 0.4 % alternately with neem based pesticides can give some relief, but is cumbersome and labour intensive. Research on this topic gave no results and the researchers from the Kerala Agricultural University and the Central Plantation Crop Research Institute, Kasaragode are still searching for a solution.

Growing in the United States

The only states in the U.S. where coconut palms can be grown and reproduced outdoors without irrigation are Hawaii and Florida. Coconut palms will grow from Bradenton, Florida|Bradenton southwards on Florida's west coast and Melbourne, Florida|Melbourne southwards on Florida's east coast. The occasional coconut palm is seen north of these areas in favoured microclimates in the Tampa-St. Petersburg-Clearwater metro area and around Cape Canaveral as well as the Orlando-Kissimmee-Daytona Beach metro area. They may likewise be grown in favoured microclimates in the Rio Grande Valley area of Deep South Texas near Brownsville and on Galveston Island. They may reach fruiting maturity, but are damaged or killed by the occasional winter freezes in these areas. While coconut palms flourish in south Florida, unusually bitter cold snaps can kill or injure coconut palms there as well. Only the Florida Keys and the coastlines provide safe havens from the cold as far as growing coconut palms on the U.S. mainland. The farthest north in the United States a coconut palm has been known to grow outdoors is in Newport Beach, California along the Pacific Coast Highway (US)|Pacific Coast Highway. In order for coconut palms to survive in Southern California they need sandy soil and minimal water in the winter to prevent root rot, and would benefit from root heating coils.

Coconut production in the Middle East

The main coconut producing area in the Middle East is the Dhofar region of Oman. Particular the area around Salalah maintains large coconut plantations similar to those found across the Arabian Sea.The large coconut grooves of Dhofar are already mentioned by the medieval Moroccan traveller Ibn Battuta in his writings known as Al Rihla Medieval Sourcebook: Ibn Battuta: Travels in Asia and Africa 1325-1354.This is possible due to an annual rainy season known locally as Khareef.Coconut are also increasingly grown for decorative purposes along the coasts of UAE and Saudi Arabia with the help of irrigation. The UAE has however imposed strict laws on mature coconut tree imports from other countries to reduce the spreading of pests that can spread to other native palm trees such as the date palm http://www.pubhort.org/datepalm/datepalm2/datepalm2_38.pdf.

Production

Philippines is the world leader in coconut production (2007) followed by Indonesia and India in distant third.

Roots

Unlike some other plants, the palm tree has neither tap root nor root hairs; but has a fibrous root system P.K. Thampan. 1981. Handbook on Coconut Palm. Oxford & IBH Publishing Co..

Inflorescence

On the same inflorescence, the palm produces both the female and male flowers; thus the palm is monoecious.

Uses

Nearly all parts of the coconut palm are useful, and the palms have a comparatively high yield, up to 75 fruits per year; it therefore has significant economic value. The name for the coconut palm in Sanskrit is ''kalpa vriksha'', which translates as "the tree which provides all the necessities of life". In Malay language|Malay, the coconut is known as ''pokok seribu guna'', "the tree of a thousand uses". In the Philippines, the coconut is commonly given the title "Tree of life|Tree of Life". It its theorised that if you were to become stranded on a desert island populated by palm trees, you could survive purely on the tree and coconut alone, as the coconut provides all of the required natural properties for survival.

Culinary

Culinary uses of the various parts of the palm include:
- The white, fleshy part of the seed is edible and used fresh or dried in cooking.
- Bud sport|Sport fruits are also harvested, primarily in the Philippines, where they are known as ''macapuno''. They are sold in jars as "gelatinous mutant coconut" cut into balls or strands.
- The cavity is filled with coconut water which contains sugar, dietary fiber|fibre, proteins, antioxidants, vitamins and minerals. Coconut water provides an isotonic electrolyte balance, and is a highly nutritious food source. It is used as a refreshing drink throughout the humid tropics and is also used in isotonic sports drinks. It can also be used to make the gelatinous dessert nata de coco. Mature fruits have significantly less liquid than young immature coconuts; barring spoilage, coconut water is sterile until opened.
- Coconut milk is made by processing grated coconut with hot water or milk, which extracts the oil and aromatic compounds. It should not be confused with the coconut water discussed above, and has a fat content of approximately 17%. When refrigerated and left to set, coconut cream will rise to the top and separate out the milk. The milk is used to produce virgin coconut oil by controlled heating and removing the oil fraction. Virgin coconut oil is found superior to the oil extracted from copra for cosmetic purposes.
- The leftover fibre from coconut milk production is used as livestock feed.
- The smell of coconuts comes from the 6-pentyloxan-2-one molecule, known as delta-decalactone in the food and fragrance industry.Data sheet about delta-decalactone and its properties: http://www.thegoodscentscompany.com/data/rw1013411.html
- The sap derived from incising the flower clusters of the coconut is drunk as neera, or fermented to produce palm wine, also known as "toddy" or, in the Philippines, ''tuba''. The sap can also be reduced by boiling to create a sweet syrup or candy.
- Apical meristem|Apical buds of adult plants are edible and are known as "palm-cabbage" or heart-of-palm. It is considered a rare delicacy, as the act of harvesting the bud kills the palm. Hearts of palm are eaten in salads, sometimes called "millionaire's salad".
- Coconut nectar|Ruku Raa is an extract from the young bud, a very rare type of nectar collected and used as morning break drink in the islands of Maldives reputed for its energetic power keeping the "raamen" (nectar collector) healthy and fit even over 80 and 90 years old. And by-products are sweet honey-like syrup and creamy sugar for desserts.
- Newly germinated coconuts contain an edible fluff of marshmallow-like consistency called coconut sprout, produced as the endosperm nourishes the developing embryo.
- In the Philippines, rice is wrapped in coco leaves for cooking and subsequent storage - these packets are called puso.
- In Vietnam, coconut is grown almost in Ben Tre Province- the "Land of coconut" and people use it to make coconut candy, coconut caramel and mứt dừa. Coconut water and coconut milk is also put in many dishes such as kho, chè, etc. especially in the Vietnam's Southern style of cooking.

Non-culinary

- Coconut water can be used as an intravenous fluid.
- Coir (the fibre from the husk of the coconut) is used in ropes, mats, brushes, caulking boats and as stuffing fibre; it is also used extensively in horticulture for making potting compost.
- Coconut oil can be rapidly processed and extracted as a fully organic product from fresh coconut fleshDirect Micro Expelling of Extra Virgin Coconut Oil, Kokonut Pacific Pty Ltd, accessed 4 January 2008, and used in many ways including as a medicine and in cosmetics, or as a direct replacement for diesel fuel.
- Copra is the dried meat of the seed and, after further processing, is a source of low grade coconut oil.
- The leaves provide materials for baskets and roofing thatch.
- Palmwood comes from the trunk and is increasingly being used as an ecologically-sound substitute for endangered hardwoods. It has several applications, particularly in furniture and specialized construction (notably in Manila's Coconut Palace).
- Hawaiians hollowed the trunk to form drums, containers, or even small canoes.
- The husk and shells can be used for fuel and are a good source of charcoal.
- Dried half coconut shells with husks are used to buff floors. In the Philippines, it is known as "bunot", and in Jamaica it is simply called "coconut brush"
- A coconut (/Tulu language|Tulu:ತಾರಾಯಿ) is an essential element of several rituals associated with Hindus and the tradition of Hinduism. The coconut is often decorated with bright metals and other symbols associated with auspiciousness. It is offered during worship (puja) in the temples and at Hindu homes. A number of fishermen of India, irrespective of their religious affiliation and faith, offer it to the rivers and seas to propitiate the god Varuna, in hopes of having a bountiful catch. In Hindu wedding ceremonies, a narikela is placed over the opening of a pot, representing a womb. Often Hindus initiate the beginning of any new activity by breaking narikelas, to ensure the blessings of the gods and the successful completion of the activity. In Tantra|tantric practices, narikelas are sometimes used as substitutes for human skulls. The Hindu goddess of well-being and wealth, Lakshmi, is often shown holding a coconut.Dictionary of Hindu Lore and Legend (ISBN 0-500-51088-1) by Anna Dallapiccola
- In the Philippines, dried half shells are used as a music instrument in a folk dance called ''maglalatik'', a traditional dance about the conflicts for coconut meat within the Spanish era
- Shirt buttons can be carved out of dried coconut shell. Coconut buttons are often used for Hawaiian Aloha shirts.
- The stiff leaflet midribs can be used to make cooking skewers, kindling arrows, or are bound into bundles, brooms and brushes.
- The roots are used as a dye, a mouthwash, and a medicine for dysentery. A frayed-out piece of root can also be used as a toothbrush.
- Half coconut shells are used in theatre Foley sound effects work, banged together to create the sound effect of a horse's hoofbeats. They were used in this way in the Monty Python film Monty Python and the Holy Grail.
- The leaves can be woven to create effective roofing materials, or reed mats.
- Half coconut shells may be deployed as an improvised bra, especially for comedic effect or theatrical purposes. They were used in this way in the 1970s UK sitcom It Ain't Half Hot Mum for example.
- Drained coconuts can be filled with gunpowder and used as Improvised explosive devices.
- In fairgrounds, a "coconut shy" is a popular target practice game, and coconuts are commonly given as prizes.
- A coconut can be hollowed out and used as a home for a rodent or small bird. Halved, drained coconuts can also be hung up as bird feeders, and after the flesh has gone, can be filled with fat in winter to attract tit (bird)|tits.
- Fresh inner coconut husk can be rubbed on the lens of snorkelling goggles to prevent fogging during use.
- Dried coconut leaves can be burned to ash, which can be harvested for Lime (mineral)|lime.
- Coconuts can be used as ammunition for homemade catapults.
- Dried half coconut shells are used as the bodies of musical instruments, including the Chinese yehu and banhu, and the Vietnamese đàn gáo.
- Coconut is also commonly used as a herbal remedy in Pakistan to treat bites from rats.
- The "branches" (leaf petioles) are strong and flexible enough to make a switch (rod)|switch. The use of coconut branches in corporal punishment was revived in the Gilbertese community on Choiseul in the Solomon Islands in 2005.Corporal punishment on the Solomon Islands
- In World War II, Coastwatchers|coastwatcher scout Biuki Gasa was the first of two from the Solomon Islands to reach the shipwrecked, wounded, and exhausted crew of Motor Torpedo Boat PT-109 commanded by future U.S. president John F. Kennedy. Gasa suggested, for lack of paper, delivering by dugout canoe a message inscribed on a husked coconut shell. This coconut was later kept on the president's desk, and is now in the John F. Kennedy Library.
- Coconut trunks are used for building small bridges, preferred for their straightness, strength and salt resistance
- Coconut shells are used to make coconut jewelry.