Most cultivars have a common name and a code number starting with "D". For example, some popular clones are Kop (D99 Thai: กบ [kòp]), Chanee (D123, Thai: ชะนี [tɕʰániː]), Berserah or Green Durian or Tuan Mek Hijau (D145 Thai: ทุเรียนเขียว [tʰúriːən kʰǐow]), Kan Yao (D158, Thai: ก้านยาว [kâːn jaːw]), Mon Thong (D159, Thai: หมอนทอง [mɔ̌ːn tʰɔːŋ]), Kradum Thong (Thai: กระดุมทอง [kràdum tʰɔːŋ]), and with no common name, D24 and D169. Each cultivar has a distinct taste and odour. More than 200 cultivars of D. zibethinus exist in Thailand. Mon thong is the most commercially sought after for its thick, full-bodied creamy and mild sweet tasting flesh with relatively moderate smell emitted and smaller seeds while Chanee is the best in terms of its resistance to infection by Phytophthora palmivora. Among all the cultivars in Thailand, five are currently in large-scale commercial cultivation: Chanee, Mon Thong, Kan Yao, Ruang, and Kradum.There are more than 100 registered cultivars in Malaysiaand many superior cultivars have been identified through competitions held at the annual Malaysian Agriculture, Horticulture and Agrotourism Show. In Vietnam, the same process has been done through competitions held by the Southern Fruit Research Institute. A recently popular variety is the Cat Mountain King.
In recent times, Songpol Somsri, a Thai government scientist, crossbred more than ninety varieties of durian to create Chantaburi No. 1, a cultivar without the characteristic odour, which is awaiting final approval from the local Ministry of Agriculture.[dated info] Another hybrid, Chantaburi No. 3, develops the odour about three days after the fruit is picked, which enables an odourless transport yet satisfies consumers who prefer the pungent odour.
Cultivation and availability
The durian is native to Brunei, Indonesia and Malaysia.There is some debate as to whether the durian is native to the Philippines, or was introduced.The durian is grown in other areas with a similar climate; it is strictly tropical and stops growing when mean daily temperatures drop below 22 °C (72 °F).The centre of ecological diversity for durians is the island of Borneo, where the fruit of the edible species of Durio including D. zibethinus, D. dulcis, D. graveolens, D. kutejensis, D. oxleyanus and D. testudinarum are sold in local markets. In Brunei, D. zibethinus is not grown because consumers prefer other species such as D. graveolens, D. kutejensis and D. oxleyanus. These species are commonly distributed in Brunei, and together with other species like D. testudinarum and D. dulcis, represent rich genetic diversity.
Although the durian is not native to Thailand, the country is currently one of the major exporters of durians, growing 781,000 tonnes (769,000 LT; 861,000 ST) of the world's total harvest of 1,400,000 tonnes (1,380,000 LT; 1,540,000 ST) in 1999, 111,000 tonnes (109,000 LT; 122,000 ST) of which it exported to Taiwan, Hong Kong, Malaysia, Singapore and Canada.Malaysia and Indonesia follow, both producing about 265,000 tonnes (261,000 LT; 292,000 ST) each. Of this, Malaysia exported 35,000 tonnes (34,000 LT; 39,000 ST) in 1999. Chantaburi in Thailand each year holds the World Durian Festival in early May. This single province is responsible for half of the durian production of Thailand. In the Philippines, the centre of durian production is the Davao Region. The Kadayawan Festival is an annual celebration featuring the durian in Davao City. Other places where durians are grown include Cambodia, Laos, Vietnam, Myanmar, India, Sri Lanka, the West Indies, Florida, Hawaii, Papua New Guinea, the Polynesian Islands, Madagascar, southern China (Hainan Island), northern Australia, and Singapore.
Durian was introduced into Australia in the early 1960s and clonal material was first introduced in 1975. Over thirty clones of D. zibethinus and six Durio species have been subsequently introduced into Australia.China is the major importer, purchasing 65,000 tonnes (64,000 LT; 72,000 ST) in 1999, followed by Singapore with 40,000 tonnes (39,000 LT; 44,000 ST) and Taiwan with 5,000 tonnes (4,900 LT; 5,500 ST). In the same year, the United States imported 2,000 tonnes (2,000 LT; 2,200 ST), mostly frozen, and the European Community imported 500 tonnes (490 LT; 550 ST).
The durian is a seasonal fruit, unlike some other non-seasonal tropical fruits such as the papaya, which are available throughout the year. In Peninsular Malaysia and Singapore, the season for durians is typically from June to August, which coincides with that of the mangosteen.Prices of durians are relatively high as compared with other fruits. For example, in Singapore, the strong demand for high quality cultivars such as the D24, Sultan, and Mao Shan Wang has resulted in typical retail prices of between S$8 to S$15 (US$5 to US$10) per kilogram of whole fruit. With an average weight of about 1.5 kilograms (3.3 lb), a durian fruit would therefore cost about S$12 to S$22 (US$8 to US$15).The edible portion of the fruit, known as the aril and usually referred to as the "flesh" or "pulp", only accounts for about 15-30% of the mass of the entire fruit.[4] Many consumers in Singapore are nevertheless quite willing to spend up to around S$75 (US$50) in a single purchase of about half a dozen of the favoured fruit to be shared by family members.
In-season durians can be found in mainstream Japanese supermarkets while, in the West, they are sold mainly by Asian markets.
http://en.wikipedia.org/wiki/Durian
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