A Sweet potato Cultivar Jeonmi for Starch Processing
2013
Lee, J.S., RDA, Muan, Republic of Korea | Chung, M.N., RDA, Muan, Republic of Korea | Ahn, Y.S., RDA, Suwon, Republic of Korea | Kim, H.S., RDA, Iksan, Republic of Korea | Song, Y.S., RDA, Muan, Republic of Korea | Shim, H.K., RDA, Iksan, Republic of Korea | Han, S.K., RDA, Muan, Republic of Korea | Kim, J.M., RDA, Muan, Republic of Korea | Suh, S.J., RDA, Suwon, Republic of Korea | Kim, J.J., RDA, Iksan, Republic of Korea | Jeong, K.H., RDA, Suwon, Republic of Korea | Choi, J.S., RDA, Iksan, Republic of Korea
Jeonmi is a sweet potato variety developed by Bioenergy Crop Research Center in the National Institute of Crop Science (NICS) at RDA for starch in 2009. This variety was selected from the cross between Jinhongmi and 99IT55-2 in 2000. Line selections were practiced from 2001 to 2003. Preliminary and advanced yield trials were carried out from 2004 to 2005. The regional yield trials were conducted at six locations from 2006, 2008 to 2009. Jeonmi has cordate leaf, green vine and petiole, elliptic storage root, red skin and light yellow flesh color of storage root. This variety is resistant to Fusarium wilt and nematode. The starch value is 25.6%. Starch yield is 6.8 ton/ha, which is 26% higher than that of Yulmi variety. The total sugar content is 3.59 g/100 g D.W.. Initial temperature of starch gelatinization in Jeonmi is lower than 79.9℃, and the retrogradation process is more late than Yulmi. The average yield of storage root was 26.2 ton/ha in the regional yield trials, which was 39% higher than that of Yulmi variety. The number of storage roots over 50 g per plant was 3.0 and the average weight of one storage root was 178 g.
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