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In Colombia yam production has been specifically located in the Caribbean region, where it has become a key product in the diet of the population of this area. In 2010, Colombia was among the 12 countries with the highest yam production worldwide, and ranked first in yield of tons per hectare planted.
The Chinese yam's growing cycle spans approximately one year, and should be planted between winter and spring. The traditional methods growing it are: using smaller tubers, top cut of bigger tubers or through cuttings of branches. The first two methods can produce 20 cm (7.8 in) long tubers and above.
Dioscorea bulbifera (commonly known as the air potato, air yam, bitter yam, cheeky yam, potato yam, [2] aerial yam, [3] and parsnip yam [4]) is a species of true yam in the yam family, Dioscoreaceae. It is native to Africa, Asia and northern Australia. [ 1 ]
It’s perfect for beginners because it’s low-maintenance and provides continuous harvests throughout the growing season with just a little care. 11. Sweet Potatoes
Oxalis tuberosa is a perennial herbaceous plant that overwinters as underground stem tubers.These tubers are known as uqa in Quechua, [1] oca in Spanish, yams in New Zealand and several other alternative names.
Dioscorea esculenta, commonly known as the lesser yam, is a yam species native to Island Southeast Asia and introduced to Near Oceania and East Africa by early Austronesian voyagers. It is grown for their edible tubers , though it has smaller tubers than the more widely-cultivated Dioscorea alata and is usually spiny.
World yam production Yam in a market. Nigeria is by far the world’s largest producer of yams, accounting for over 70–76 percent of the world production.According to the Food and Agriculture Organization report, in 1985, Nigeria produced 18.3 million tonnes of yam from 1.5 million hectares, representing 73.8 percent of total yam production in Africa. [1]
Dioscorea mexicana, Mexican yam or cabeza de negro is a species of yam in the genus Dioscorea. [1]Dioscorea mexicana is a caudiciform dioscorea having either a partly to completely above-ground dome-shaped caudex with a thick, woody outer layer up to 3 feet (90 cm) in diameter and 8–10 inches (20 to 25 cm) in height.