

PAPAYA TREE – Carica papaya L.
Papaya Tree
Latin (Binominal) Name | Carica papaya L. |
Botany Author Citation (L.) | Carl Linnaeus |
Common Names | Papaya; Papaw or Paw Paw (Australia); Mamao (Brazil), Tree Melon. |
Scientific Classification | |
Kingdom | Plantae |
Clade | Angiosperms |
Clade | Eudicots |
Clade | Rosids |
Order | Brassecales |
Family | Caricaceae |
Genus | Carica |
Species | C. papaya |
Country of Origin | Mexico and Central America. |
Average annual rainfall | 304 millimetres (Mexico City) |
Geographical Distribution | South America, Africa, India, Australia Malaysia, Indonesia, Philippines, Thailand and Hawaii. |
Native Environment | Tropical and subtropical |
Maturity Height:
| 5 to 10 metres |
Maturity Canopy Spread: | 1.5 to 2.5 metres |
Maturity Trunk size: | Up to 20 cm in diameter |
Leaf Description:
| – Spirally arranged and palmate with seven lobes, soft hairs and up to 70cm in diameter. – Leaf stalks (petioles) can reach up to 1m long. – The life of a leaf is 4 to 6 months |
Parts used | |
Fruit | – Ripe fruit is usually eaten raw, without skin or seeds. – Unripe green fruit eaten cooked in curries and stews, sweets and deserts. – High levels of pectin used to make jelly. – Ripe papaya is usually consumed fresh as a breakfast or dessert fruit; it can also be processed and used in a variety of products such as jams, fruit juices, and ice cream – Unripe, green papaya fruit and the leaves of the papaya tree contain an enzyme called papain. Papain has been used as a natural meat tenderizer for thousands of years and today is an ingredient in many commercial meat tenderizers. |
Nutrition | – Raw papaya pulp contains 88% water, 11% carbohydrates, and negligible fat and protein (table). In a 100 gram amount, papaya fruit provides 43 kilocalories and is a significant source of vitamin C (75% of the Daily Value, DV) and a moderate source of folate (10% DV), but otherwise has low content of nutrients – A small papaya contains about 300% of the recommended daily amount of Vitamin C. |
Seeds | – Sharp, spicy taste – Ground and used as a substitute for black pepper. |
Leaves | – Young leaves boiled as part of lalab salad – Steamed and eaten – Tea made from papaya leaves is consumed in some countries as protection against malaria. |
Flower | – Sautéed and stir-fried as Minahasan papaya flower vegetable disk – |
Bark | – The bark of the papaya tree is often used to make rope. |
Traditional Use and Folklore
| – In some parts of the world, papaya leaves are made into tea as a treatment for malaria, no treatment method based has been scientifically proven – unripe papaya has been used for centuries by women as a natural contraceptive and to induce abortion – The juice is used for warts, cancers, tumors, corns, and indurations of the skin. – Leaves poulticed onto nervous pains and elephantoid growths. – Roots said to cure piles and yaws – Javanese believe that eating papaya prevents rheumatism. – Dietary papaya does reduce urine acidity in humans. – Inner bark used for sore teeth. Latex used in psoriasis, ringworm, and prescribed for the removal of cancerous growths in Cuba. |
Safety Issues and Precautions
| – Unripe Papaya releases a latex fluid, possibly causing irritation and an allergic reaction in some people. – Large consumption of ripe papaya may cause carotenemia, harmless yellowing of soles and palms. |
Life Cycle | |
Evergreen or Deciduous | Evergreen |
Life Span | – Bloom to maturity is 5-8 months – Short-lived perennial, generally 3-5 years (commercial) – 25 years + (wild) |
Production | Global production (2014) of papayas was 12.7 million tonnes, led by India (44%). |
Year to 1st fruit | 1 year |
Years of fruit production | 3-5 years |
Harvesting | Papaya is harvested all year round with production peaks during autumn and spring. |
Pollination | Based on flower type there are three types of papaya plants: female, hermaphrodite, and male. Hermaphrodite flowers are usually self-pollinating. Female flowers are probably pollinated by wind or by insects (thrips, moths). Hand pollination can be used for better fruit setting. |
Growing Information | – Growing papaya trees is generally done from seed that is extracted from ripe fruit. Seeds will germinate in 2-3 weeks. Optimum germination temperature is around 70 F (20 C). – The best place to plant a papaya is on the south or southeast side of a house with some protection from wind and cold weather. – Papayas grow best in full sun, well-drained soil, as standing water will kill the plant within 24 hours. – Temperatures below −2 °C (29 °F) are greatly harmful if not fatal. – Root growing above 60 degrees Fahrenheit. – Cold Climate: Papaya is a tropical fruit tree but if you are thinking to plant it in a temperate climate plant it in a large pot and try to overwinter it in a well-protected area, like a greenhouse. [R3] – Optimum temperature for growing papaya ranges between 68 – 86 F (20 to 30 C). – Papaya tree can bear cold temperature down to 32 F (0 C) for a short period of time. – Fertilize them regularly. A complete fertilizer, compost or something like chicken manure. |
Diseases | Virus diseases, mildew, anthracnose, root rot. |
Insect pests:
| Mealybugs, thrips, mites, white flies, fruit spotting bugs, fruit flies. |
Care Information | – Water frequently for best fruit production. Mulch trees (4+ inches), taking care to keep the mulch 8 to 12 inches from the trunk. – Protect developing fruit from pests by placing a paper bag over them until they are ripe. |
References:
https://en.wikipedia.org/wiki/Papaya
https://www.gardeningknowhow.com/edible/fruits/papaya/growing-papaya-fruit.htm
http://balconygardenweb.com/how-to-grow-papaya-growing-papaya-tree-care/
http://www.softschools.com/facts/plants/papaya_facts/612/
http://topfoodfacts.com/18-interesting-facts-about-papaya/
http://topfoodfacts.com/18-interesting-facts-about-papaya/
https://hort.purdue.edu/newcrop/duke_energy/Carica_papaya.html
https://www.crfg.org/pubs/ff/papaya.html
http://world-crops.com/papaya/
https://www.daf.qld.gov.au/plants/fruit-and-vegetables/fruit-and-nuts/papaya/harvesting-and-yields-of-papaya
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