In 2020, ‘Sodammi’ was developed as a sweetpotato with a slightly moist texture, excellent palatability, and appearance. It was derived from a cross between ‘Hogammi’ (IT327288), which has a slightly moist texture and excellent palatability, and ‘Kyushu No. 121’ (IT309496), which has a yellow flesh and good appearance. The storage roots of ‘Sodammi’ have a purple-red skin, yellow flesh, and an ovate shape. ‘Sodammi’ storage roots exhibit a slightly moist texture and are more tender than those of the check variety ‘Jinhongmi’. The sweetness of steamed storage roots of ‘Sodammi’ was 19.1, which was 24.8% higher than that of ‘Jinhongmi’. Palatability of steamed storage of ‘Sodammi’ was better than that of ‘Jinhongmi’. The marketable storage root yield of ‘Sodammi’ was 19.6 MT/ha during the normal season culture. ‘Sodammi’ is moderately resistant to Fusarium wilt and root-knot nematodes. ‘Sodammi’ had very good storability, as there was almost no decay rate and no internal cavitation during long-term storage. Cultivation of the ‘Sodammi’ variety is expected to expand considerably, as it has characteristics favored by consumers, farmers, and distributors due to its excellent palatability, appearance, and storability (Registration No. 8789).
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