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Botanical Name : Phoenix dactylifera
Family: Arecaceae
Genus: Phoenix
Species: P. dactylifera
Kingdom: Plantae
Order: Arecales
Common Names ;Date
Habitat :Phoenix dactylifera is native to the Persian Gulf.It is cultivated for it’s sweet fruit all along the middle east dry areas.
Dates are an important traditional crop in Turkey, Iraq, Arabia, and north Africa west to Morocco and are mentioned more than 50 times in the Bible. Dates (especially Medjool and Deglet Noor) are also cultivated in southern California, Arizona and southern Florida in the United States.
Description:
The date palm is dioecious, having separate male and female plants.It is a medium-sized plant, 15–25 m tall, growing singly or forming a clump with several stems from a single root system. The leaves are 3–5 m long, with spines on the petiole, and pinnate, with about 150 leaflets; the leaflets are 30 cm long and 2 cm wide. The full span of the crown ranges from 6 to 10 m.
The fruit is known as a date. The fruit’s English name (through Old French), as well as the Latin species name dactylifera, both come from the Greek word for “finger,” dáktulos, because of the fruit’s elongated shape. Dates are oval-cylindrical, 3–7 cm long, and 2–3 cm diameter, and when unripe, range from bright red to bright yellow in colour, depending on variety. Dates contain a single seed about 2–2.5 cm long and 6–8 mm thick. Three main cultivar groups of date exist: soft (e.g. ‘Barhee’, ‘Halawy‘, ‘Khadrawy’, ‘Medjool’), semi-dry (e.g. ‘Dayri’, ‘Deglet Noor’, ‘Zahdi’), and dry (e.g. ‘Thoory’). The type of fruit depends on the glucose, fructose and sucrose content.
Cultivation & Propagation:
Dates are naturally wind pollinated but in both traditional oasis horticulture and in the modern commercial orchards they are entirely pollinated manually. Natural pollination occurs with about an equal number of male and female plants. However, with assistance, one male can pollinate up to 100 females. Since the males are of value only as pollinators, this allows the growers to use their resources for many more fruit producing female plants. Some growers do not even maintain any male plants as male flowers become available at local markets at pollination time. Manual pollination is done by skilled labourers on ladders. In some areas such as Iraq the pollinator climbs the tree using a special climbing tool that wraps around the tree trunk and the climber’s back to keep him attached to the trunk while climbing. Less often the pollen may be blown onto the female flowers by a wind machine.
They can be easily grown from seed, but only 50% of seedlings will be female and hence fruit bearing, and dates from seedling plants are often smaller and of poorer quality. Most commercial plantations thus use cuttings of heavily cropping cultivars. Plants grown from cuttings will fruit 2–3 years earlier than seedling plants.
A date palm cultivar, known as Judean date palm is renowned for its long-lived orthodox seed, which successfully sprouted after accidental storage for 2000 years. This particular seed was presently reputed to be the oldest viable seed until the sprouting of over 30,000 year old silene stenophylla seeds, but the upper survival time limit of properly stored seeds remains unknown.
Date palms can take 4 to 8 years after planting before they will bear fruit, and produce viable yields for commercial harvest between 7 to 10 years. Mature date palms can produce 80–120 kilograms (176–264 lb) of dates per harvest season, although they do not all ripen at the same time so several harvests are required. In order to get fruit of marketable quality, the bunches of dates must be thinned and bagged or covered before ripening so that the remaining fruits grow larger and are protected from weather and pests such as birds.
Edible Uses:
Dates fruit have been a staple food of the Middle East for thousands of years. They are believed to have originated around the Persian Gulf, and have been cultivated since ancient times from Mesopotamia to prehistoric Egypt, possibly as early as 4000 BCE. The Ancient Egyptians used the fruits to be made into date wine, and ate them at harvest. There is archaeological evidence of date cultivation in eastern Arabia in 6000 BCE. (Alvarez-Mon 2006).
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In later times, traders spread dates around South and South West Asia, northern Africa, and Spain and Italy. Dates were introduced into Mexico and California by the Spaniards by 1765, around Mission San Ignacio.
Dates ripen in four stages, which are known throughout the world by their Arabic names kimri (unripe), khlal (full-size, crunchy), rutab (ripe, soft), tamr (ripe, sun-dried). A 100 gram portion of fresh dates is a source of vitamin C and supplies 230 kcal (960 kJ) of energy. Since dates contain relatively little water, they do not become much more concentrated upon drying, although the vitamin C is lost in the process.
In Islamic countries, dates and yogurt or milk are a traditional first meal when the sun sets during Ramadan.
Dry or soft dates are eaten out-of-hand, or may be pitted and stuffed with fillings such as almonds, walnuts, candied orange and lemon peel, tahini, marzipan or cream cheese. Pitted dates are also referred to as stoned dates. Partially dried pitted dates may be glazed with glucose syrup for use as a snack food. Dates can also be chopped and used in a range of sweet and savory dishes, from tajines (tagines) in Morocco to puddings, ka’ak (types of Arab cookies) and other dessert items. Date nut bread, a type of cake, is very popular in the United States, especially around holidays. Dates are also processed into cubes, paste called “‘ajwa”, spread, date syrup or “honey” called “dibs” or “rub” in Libya, powder (date sugar), vinegar or alcohol. Recent innovations include chocolate-covered dates and products such as sparkling date juice, used in some Islamic countries as a non-alcoholic version of champagne, for special occasions and religious times such as Ramadan.
Dates can also be dehydrated, ground and mixed with grain to form a nutritious stockfeed. Dried dates are fed to camels, horses and dogs in the Sahara. In northern Nigeria, dates and peppers added to the native beer are believed to make it less intoxicating.
Sweet sap tapped from date palm in West Bengal, IndiaYoung date leaves are cooked and eaten as a vegetable, as is the terminal bud or heart, though its removal kills the palm. The finely ground seeds are mixed with flour to make bread in times of scarcity. The flowers of the date palm are also edible. Traditionally the female flowers are the most available for sale and weigh 300–400 grams. The flower buds are used in salad or ground with dried fish to make a condiment for bread.
Dates provide a wide range of essential nutrients, and are a very good source of dietary potassium. The sugar content of ripe dates is about 80%; the remainder consists of protein, fiber, and trace elements including boron, cobalt, copper, fluorine, magnesium, manganese, selenium, and zinc. The glycemic index for three different varieties of dates are 35.5 (khalas), 49.7 (barhi) and 30.5 (bo ma’an).
In India and Pakistan, North Africa, Ghana, and Côte d’Ivoire, date palms are tapped for the sweet sap, which is converted into palm sugar (known as jaggery or gur), molasses or alcoholic beverages. In North Africa the sap obtained from tapping palm trees is known as l?gb?. If left for a sufficient period of time (typically hours, depending on the temperature) l?gb? easily becomes an alcoholic drink. Special skill is required when tapping the palm tree so that it does not die.
In Southeast Spain (where a large date plantation exists including UNESCO protected Palmeral of Elche) dates (usually pitted with fried almond) are served wrapped in bacon and shallow fried. It is also used to make Jallab.
Medicinal Uses:
The fruit, because of its tannin content, is used medicinally as a detersive and astringent in intestinal troubles. In the form of an infusion, decoction, syrup or paste, is administered as a treatment for sore throat, colds, bronchial catarrh. It is taken to relieve fever, cystitis, gonorrhea, edema, liver and abdominal troubles. And it is said to counteract alcohol intoxication. The seed powder is an ingredient in a paste given to relieve ague. A gum that exudes from the wounded trunk is employed in India for treating diarrhea and genito-urinary ailments. It is diuretic and demulcent. The roots are used against toothache. The pollen yields an estrogenic principle, estrone, and has a gonadotropic effect on young rats. One traditional belief is that it can counteract alcohol intoxication. The seed powder is also used in some traditional medicines. Because of their laxative quality, dates are considered to be good at preventing constipation..
Other Uses Of the Plant :
Date seeds are soaked and ground up for animal feed. Their oil is suitable for use in soap and cosmetics. They can also be processed chemically as a source of oxalic acid. The seeds are also burned to make charcoal for silversmiths, and can be strung in necklaces. Date seeds are also ground and used in the manner of coffee beans, or as an additive to coffee.
Stripped fruit clusters are used as brooms. In Pakistan, a viscous, thick syrup made from the ripe fruits is used as a coating for leather bags and pipes to prevent leaking.
Date palm sap is used to make palm syrup and numerous edible products derived from the syrup.
Date palm leaves are used for Palm Sunday in the Christian religion. In North Africa, they are commonly used for making huts. Mature leaves are also made into mats, screens, baskets and fans. Processed leaves can be used for insulating board. Dried leaf petioles are a source of cellulose pulp, used for walking sticks, brooms, fishing floats and fuel. Leaf sheaths are prized for their scent, and fibre from them is also used for rope, coarse cloth, and large hats. The leaves are also used as a lulav in the Jewish holiday of Sukkot.
Date palm wood is used for posts and rafters for huts; it is lighter than coconut and not very durable. It is also used for construction such as bridges and aqueducts, and parts of dhows. Leftover wood is burnt for fuel.
Where craft traditions still thrive, such as in Oman, the palm tree is the most versatile of all indigenous plants, and virtually every part of the tree is utilized to make functional items ranging from rope and baskets to beehives, fishing boats, and traditional dwellings.
When Muslims break fast in the evening meal of Ramadan, it is traditional to eat a date first.
Disclaimer : The information presented herein is intended for educational purposes only. Individual results may vary, and before using any supplements, it is always advisable to consult with your own health care provider
Resources:
http://en.wikipedia.org/wiki/Phoenix_dactylifera
http://www.herbnet.com/Herb%20Uses_DE.htm
http://www.plantoftheweek.org/week432.shtml
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