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A New Sweetpotato Cultivar for Use of Bioethanol 'Daeyumi'  

Lee, Joon-Seol (Bioenergy Crop Research Center, National Institute of Crop Science, RDA)
Ahn, Young-Sup (Dept. of Herbal Crop Research, National Institute of Horticultural & Herbal Science, RDA)
Chung, Mi-Nam (Bioenergy Crop Research Center, National Institute of Crop Science, RDA)
Kim, Hag-Sin (Dept. Rice and Winter Cereal Crop, National Institute of Crop Science, RDA)
Jeong, Kwang-Ho (National Institute of Crop Science, RDA)
Bang, Jin-Ki (Foundation of AG. Tech. Commercialization & Transfer)
Song, Yeon-Sang (Bioenergy Crop Research Center, National Institute of Crop Science, RDA)
Shim, Hyeong-Kwon (Dept. Rice and Winter Cereal Crop, National Institute of Crop Science, RDA)
Han, Seon-Kyeong (Bioenergy Crop Research Center, National Institute of Crop Science, RDA)
Suh, Sae-Jung (Bioenergy Crop Research Center, National Institute of Crop Science, RDA)
Publication Information
Korean Journal of Breeding Science / v.42, no.6, 2010 , pp. 674-678 More about this Journal
Abstract
A new sweetpotato variety, 'Daeyumi', was developed by Bioenergy Crop Research Center, National Institute of Crop Science (NICS), RDA in 2008. This variety was obtained from the cross between 'Jinhongmi' and 'Xusju 18' in 2000. The seedling and line selections were performed from 2001 to 2003, preliminary and advanced yield trials were carried out from 2004 to 2005, and the regional yield trials were conducted at six locations from 2006 to 2008. 'Daeyumi' has cordate leaf, green vine and petiole, elliptic storage root, red skin and yellow flesh color of storage root. This variety is also resistant to Fusarium wilt and nematode. The starch value was 25.9%, ethanol yield was 418 L/Ton, which was 7% higher than that of 'Yulmi' variety, and the total sugar content was 2.47 g/100g, dry weight. 'Daeyumi's initial temperature of starch gelatinization was lower, 76.2$^{\circ}C$, and the retrogradation process was earlier than 'Yulmi'. The average yield of storage root was 27.8 ton/ha in the regional yield trials, which was 36% higher than that of 'Yulmi' variety. Number of storage roots over 50 gram per plant was 3.0, and the average weight of one storage root was 152 gram. This variety can be used for the production of bioethanol and starch processing.
Keywords
Sweetpotato; Breeding; Cultivar; Bioethanol; Daeyumi;
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Times Cited By KSCI : 1  (Citation Analysis)
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