Dioscorea cayenensis subsp. rotundata - Wikipedia
Dioscorea cayenensis subsp. rotundata, commonly known as the white yam, West African yam, [1] Guinea yam, or white ñame, is a subspecies [2] of yam native to Africa. It is one of the most important cultivated yams. [ 3 ]
Yam genomics supports West Africa as a major cradle of crop
2019年5月1日 · Here, we investigated the domestication of African yam (Dioscorea rotundata), a key crop in early African agriculture. Using whole-genome resequencing and statistical models, we show that cultivated yam was domesticated from a forest species.
The ancient lore of the humble Nigerian yam - BBC
2024年8月11日 · Resembling logs with their cylindrical shape and thick bark-like skins, yams have fuelled Nigerian and wider West African communities for millennia. However, the humble yam is far more than...
Yam genomics supports West Africa as a major cradle of crop ...
Here, we investigated the domestication of African yam (Dioscorea rotundata), a key crop in early African agriculture. Using whole-genome resequencing and statistical models, we show that cultivated yam was domesticated from a forest species.
Yam | Description, Uses, Species, & Facts | Britannica
2024年11月3日 · Guinea yam (D. rotundata) and yellow Guinea yam (D. cayenensis) are the main yam species grown in West Africa. Lesser yam ( D. esculenta ), grown on the subcontinent of India , in southern Vietnam , and on South Pacific islands, is one of the tastiest yams.
Yam - Crop Trust
The West African yellow yam (Dioscorea cayenensis) gets its color from the presence of carotenoids, and it is a good source of vitamin A. Dioscorea esculenta, grown on the Indian subcontinent, in southern Vietnam, and in the South Pacific islands, is …
Ecological and Edaphic Drivers of Yam Production in West Africa
2021年6月4日 · Yam is an important food and cash crop in West Africa (the yam belt) whose production is traditionally nonsedentary due to its substantial nutrient demand. Population growth, urbanization, and existing soil degradation have made nonsedentary farming virtually impossible.
Dioscorea cayenensis - Wikipedia
Dioscorea cayenensis is a species of yam in the genus Dioscorea that is a widely consumed West African domesticated crop. Dioscorea rotundata is sometimes treated as a subspecies, and sometimes also as a separate species. [1] Common names include Guinea yam, yellow yam, and yellow Guinea yam.
Yam in West Africa: Food, Money, and More on JSTOR
In West Africa, all food crops are produced at high labor costs because of dependence on Iron Age laborsaving technology; certain agronomic practices that are peculiar to yam production and have defied change with time add up to make yam production labor intensive in the extreme.
Yams: A lifeline for millions - Kew
2019年11月11日 · The cultivated guinea yams (Dioscorea rotundata) and winged yams (Dioscorea alata) feed around 100 million people in West and Central Africa alone. Yams are found throughout the tropical regions of the world and a few occur in warm temperate regions.
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