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{{Taxobox
__NOTOC__{{Plantbox
| color = lightgreen
| name = ''Artocarpus heterophyllus''
| name = Jackfruit
| common_names = Jackfruit
| growth_habit = tree
| high = <!--- 1m (3 ft) -->
| wide = <!--- 65cm (25 inches) -->
| origin = India
| poisonous = <!--- indicate parts of plants which are known/thought to be poisonous -->
| lifespan = perennial
| exposure = <!--- full sun, part-sun, semi-shade, shade, indoors, bright filtered (you may list more than 1) -->
| water = frequent when warm, regular when cool
| features = <!--- flowers, fragrance, fruit, naturalizes, invasive -->
| hardiness = ?°C (27-32°F) older trees more hardy
| bloom = <!--- seasons which the plant blooms, if it is grown for its flowers -->
| usda_zones = <!--- eg. 8-11 -->
| sunset_zones = <!--- eg. 8, 9, 12-24, not available -->
| color = IndianRed
| image = Artocarpus heterophyllus fruits at tree.jpg
| image = Artocarpus heterophyllus fruits at tree.jpg
| image_width = 225px
| image_width = 180px <!--- leave as 240px if horizontal orientation photo, or change to 180px if vertical -->
| image_caption = Jackfruit tree with fruit
| image_caption = Jackfruit tree with fruit
| regnum = [[Plant]]ae
| regnum = Plantae
| divisio = [[Flowering plant|Magnoliophyta]]
| divisio = Magnoliophyta
| classis = [[Magnoliopsida]]
| classis = Magnoliopsida
| ordo = [[Rosales]]
| ordo = Rosales
| familia = [[Moraceae]]
| familia = Moraceae
| genus = ''[[Artocarpus]]''
| genus = Artocarpus
| species = '''''A. heterophyllus'''''
| species = heterophyllus
| binomial = ''Artocarpus heterophyllus''
| subspecies =
| binomial_authority = [[Jean-Baptiste Lamarck|Lam.]]
| cultivar =
}}
}}
'''Adaptation''': Jackfruit is adapted to humid tropical and near-tropical climates. Mature trees have survived temperatures of about 27° F in southern Florida, but these were frozen to large limbs. Young trees are likely to be killed at temperatures below 32° F. Unlike its relative, the breadfruit, the jackfruit is not injured by cool weather several degrees above freezing. There are only a dozen or so bearing jackfruit trees today in southern Florida, and these are valued mainly as curiosities. There are also several trees planted in the Asian exhibit at the San Diego Zoo. What they will do or how high they will grow remains a question. The tree is too large to make a suitable container-grown plant.
'''Growth Habit''': The jackfruit tree is handsome and stately. In the tropics it grows to an enormous size, like a large eastern oak. In California it is very doubtful that it would ever approach this size. All parts contain a sticky, white latex.
The sweet yellow sheaths around the seeds are about 3-5 mm thick and have a taste similar to [[pineapple]] but milder and less juicy.
'''Foliage''': The leaves are oblong, oval, or elliptic in form, 4 to 6 inches in length, leathery, glossy, and deep green in color. Juvenile leaves are lobed.
'''Flowers''': Male and female flowers are borne in separate flower-heads. Male flower-heads are on new wood among the leaves or above the female. They are swollen, oblong, from an inch to four inches long and up to an inch wide at the widest part. They are pale green at first, then darken. When mature the head is covered with yellow pollen that falls rapidly after flowering. The female heads appear on short, stout twigs that emerge from the trunk and large branches, or even from the soil-covered base of very old trees. They look like the male heads but without pollen, and soon begins to swell. The stalks of both male and female flower-heads are encircled by a small green ring.
'''Fruit''': Jackfruit is the largest tree-borne fruit in the world, reaching 80 pounds in weight and up to 36 inches long and 20 inches in diameter. The exterior of the compound fruit is green or yellow when ripe. The interior consists of large edible bulbs of yellow, banana-flavored flesh that encloses a smooth, oval, light-brown seed. The seed is 3/4 to 1-1/2 inches long and 1/2 to 3/4 inches thick and is white and crisp within. There may be 100 or up to 500 seeds in a single fruit, which are viable for no more than three or four days. When fully ripe, the unopened jackfruit emits a strong disagreeable odor, resembling that of decayed onions, while the pulp of the opened fruit smells of pineapple and banana.
Jackfruit is widely grown in [[South Asia|South]] and [[Southeast Asia]]. It is also grown in parts of central and eastern [[Africa]], [[Brazil]], [[Suriname]], and in islands of the West Indies such as [[Jamaica]]. It is the national fruit of [[Bangladesh]] and [[Indonesia]].
There are two main varieties. In one, the fruits have small, fibrous, soft, mushy, but very sweet carpels with a texture somewhat akin to a raw oysters. The other variety is crisp and almost crunchy though not quite as sweet. This form is the more important commercially and is more palatable to western tastes.
:''More information about this species can be found on the [[Artocarpus|genus page]].''
==Cultivation==
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'''Location''': The jackfruit tree should have a well-drained, frost-free location that is sunny and warm.
The jackfruit is something of an acquired taste, but it is very popular in many parts of the world. An unopened ripe fruit can have a unpleasant smell, like rotting [[onion]]s. The light brown to black seeds with white innards are indeed about the size of dates. People often oil their hands with coconut oil, [[kerosene]], or paraffin before preparing jackfruit, as the rest of the fruit is a loose white mass that bleeds a milky, sticky sap often used as glue.
'''Soil''': The jackfruit flourishes in rich, deep soil of medium or open texture. Planting on top of an old compost heap would be ideal. The faster one can force a tropical plant to grow, the better the chance of keeping it alive. The tree needs the best drainage and cannot tolerate "wet feet".
'''Irrigation''': The tree will not tolerate drought. Water frequently during warm months and warm periods in cooler months. Less water is necessary during colder weather.
In the [[United States]] and [[Europe]], the fruit is available in shops that sell exotic products, usually sold canned with a sugar syrup or frozen. It is also obtained fresh from Asian food markets. Sweet jackfruit chips are also often available.
'''Fertilization''': The jackfruit's requirements are not known, but frequent, weak solutions of all-purpose fertilizer will speed the plant's growth without causing burn. In the regions where it is commonly grown, it succeeds without much care from man, the sole necessity being abundant moisture.
'''Frost protection''': Although mature jackfruit trees will take several degrees of frost, it is prudent to provide young plants with overhead protection if possible and plant them on the south side of a wall or building. Small plants should be given complete protection with a covering on cold nights and even a light bulb if possible.
'''Pruning''': Little or no pruning is required other than to remove any dead branches from the interior of the tree, so that sufficient light is obtained for the developing fruit.
'''Harvest''': Jackfruits mature 3 to 8 months from flowering. When mature, there is usually a change of fruit color from light green to yellow-brown. Spines, closely spaced, yield to moderate pressure, and there is a dull, hollow sound when the fruit is tapped. After ripening, they turn brown and deteriorate rather quickly.
===Propagation===
Propagation is usually by seeds, which can be kept no longer than a month before planting. Germination requires 3 to 8 weeks. The seedlings should be moved when no more than 4 leaves have appeared. A more advanced seedling, with its long and delicate tap root is very difficult to transplant successfully. Cutting-grown plants and grafted seedlings are possible. Air-layering is common in India.
===Other preparations:===
===Pests and diseases===
A variety of pests and diseases afflict the jackfruit tree and fruit regions where it is commonly grown. In California the white fly is a minor pest.
==Names==
==Cultivars==
The fruit is called a variety of names around the world:
In Malaysia and India there are named types of fruit. One that has caused a lot of interest is Singapore, or Ceylon, a remarkable yearly bearer producing fruit in 18 months to 2-1/2 years from transplanting. The fruit is of medium size with small, fibrous carpels which are very sweet. It was introduced into India from Ceylon and planted extensively in 1949. Other excellent varieties are Safeda, Khaja, Bhusila, Bhadaiyan and Handia. In Australia, some of the varieties are: Galaxy, Fitzroy, Nahen, Cheenax, Kapa, Mutton, and Varikkha. None of these appear to be available in the US at this time.
==Gallery==
<gallery>
Image:Jackfruit1.JPG|Young jackfruit
Image:JackfruitLift.JPG|Illustration of the size of jackfruit
</gallery>
==References==
*[[Chinese language|Chinese]]: 波羅蜜 ''Bōluómì''
*[http://www.crfg.org/pubs/ff/jackfruit.html CRFG Jackfruit Fruit Facts]
*[[Korean language|Korean]]: 바라밀 ''Baramil''
<!--- xxxxx *Flora: The Gardener's Bible, by Sean Hogan. Global Book Publishing, 2003. ISBN 0881925381 -->
<!--- xxxxx *American Horticultural Society: A-Z Encyclopedia of Garden Plants, by Christopher Brickell, Judith D. Zuk. 1996. ISBN 0789419432 -->
<!--- xxxxx *Sunset National Garden Book. Sunset Books, Inc., 1997. ISBN 0376038608 -->
==External links==
*[[Persian language|Persian]]: ''Derakhte Nan''
*{{wplink}}
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