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The sweet potato (Ipomoea batatas) is a very important crop for subsistence farmers in Africa and developing countries in other regions. [1] [2] Its relatively short growing period, tolerance to drought and high yield from poor soils lead to its use as a famine reserve for many of these households.
The sweet potato or sweetpotato (Ipomoea batatas) is a dicotyledonous plant that belongs to the bindweed or morning glory family, Convolvulaceae. Its large, starchy, sweet-tasting tuberous roots are used as a root vegetable. [3] [4] The young shoots and leaves are sometimes eaten as greens.
Even though these growers called their products yams, true yams are significantly different. All sweet potatoes are variations of one species: I. batatas. Yams are any of various tropical species of the genus Dioscorea. A yam tuber is starchier, dryer, and often larger than the storage root of a sweet potato, and the skin is more coarse. [3]
The enlarged area of the tuber can be produced at the end or middle of a root or involve the entire root. It is thus different in origin, but similar in function and appearance, to a stem tuber. Plants with tuberous roots include the sweet potato (Ipomoea batatas), cassava, dahlia, and Sagittaria (arrowhead) species. [citation needed]
Adventitious storage roots – similar function as storage-taproots. Tuberous roots or root tubers – Narrow sense, those storage roots that do not conform to a specific shape, such as fasciculated, nodulose moniliform, annulated, etc.: e.g. sweet potato (Ipomoea batatas), whose edible part is a root of this type. Broader sense, adventitious ...
Alternaria storage rot Alternaria spp. Black rot Ceratocystis fimbriata Chalara sp. [anamorph] Blue mold rot Penicillium spp. Cercospora leaf spot Cercospora spp. Phaeoisariopsis bataticola = Cercospora bataticola, C. batatas, C. ipomoeae. Charcoal rot Macrophomina phaseolina: Chlorotic leaf distortion Fusarium lateritium Gibberella baccata ...
Nonetheless, Ipomoea species are used as food plants by the caterpillars of certain Lepidoptera (butterflies and moths). For a selection of diseases of the sweet potato (I. batatas), many of which also infect other members of this genus, see List of sweet potato diseases.
Cassava tuberous roots. Tuberous root. Amorphophallus galbra (yellow lily yam) Conopodium majus (pignut or earthnut) Dioscorea spp. (yams, ube) Dioscorea polystachya (nagaimo, Chinese yam, Korean yam, mountain yam, white ñame) Hornstedtia scottiana (native ginger) Ipomoea batatas (sweet potato) Ipomoea costata (desert yam)