A New Sweetpotato Cultivar for Use of Bioethanol 'Daeyumi'

바이오에탄올용 고구마 신품종 '대유미'

  • 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)
  • 이준설 (농촌진흥청 국립식량과학원 바이오에너지작물센터) ;
  • 안영섭 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 정미남 (농촌진흥청 국립식량과학원 바이오에너지작물센터) ;
  • 김학신 (농촌진흥청 국립식량과학원 벼맥류부) ;
  • 정광호 (농촌진흥청 국립식량과학원) ;
  • 방진기 (농업기술실용화재단) ;
  • 송연상 (농촌진흥청 국립식량과학원 바이오에너지작물센터) ;
  • 심형권 (농촌진흥청 국립식량과학원 벼맥류부) ;
  • 한선경 (농촌진흥청 국립식량과학원 바이오에너지작물센터) ;
  • 서세정 (농촌진흥청 국립식량과학원 바이오에너지작물센터)
  • Received : 2010.08.27
  • Published : 2010.12.31

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.