Antioxidant Functional and Red Pericarp Rice 'Geonganghongmi'
2017
Song, Y.C., National Institute of Crop Science (NICS), RDA, Wanju, Republic of Korea | Cho, J.H., National Institute of Crop Science (NICS), RDA, Wanju, Republic of Korea | Lee, J.Y., National Institute of Crop Science (NICS), RDA, Wanju, Republic of Korea | Oh, S.H., Rural Development Administration, Jeonju, Republic of Korea | Han, S.I., National Institute of Crop Science (NICS), RDA, Wanju, Republic of Korea | Jung, K.H., National Institute of Crop Science (NICS), RDA, Wanju, Republic of Korea | Seo, W.D., National Institute of Crop Science (NICS), RDA, Wanju, Republic of Korea | Hwang, W.H., National Institute of Crop Science (NICS), RDA, Wanju, Republic of Korea | Jang, K.C., Rural Development Administration, Jeonju, Republic of Korea | Park, N.B., National Institute of Crop Science (NICS), RDA, Wanju, Republic of Korea | Park, D.S., National Institute of Crop Science (NICS), RDA, Wanju, Republic of Korea | Kim, S.Y., National Institute of Crop Science (NICS), RDA, Wanju, Republic of Korea | Kang, H.W., National Institute of Crop Science (NICS), RDA, Wanju, Republic of Korea | Lee, H.D., National Institute of Horticultural and Herbal Science (NIHHS), RDA, Wanju, Republic of Korea | Lee, J.H., Rural Development Administration, Jeonju, Republic of Korea
To fit the market demands for functional rice such as black and red color rice, 'Sugary' a high free sugar content line was backcrossed to the black rice ‘Milyang152. The pedigree method was adapted in selection and generation advance. A high polyphenol content line, YR19646-3-2-1-1-2-2 showing red pericarp was selected and designed as 'Milyang234' followed by variety name 'Geonganghongmi' in 2010. Heading date of 'Geonganghongmi' was Aug. 19, medium-late maturing cultivar. 'Geonganghongmi' showed resistance to leaf blast and rice stripe virus while susceptible to major diseases and insects. The total polyphenol content of 'Geonganghongmi' was high as much as 24.2mg/g compare to that of 4.9mg/g of ‘Nampyeongbyeo’ and 17.2mg/g of a red pericarp rice 'Jeogjinju' at 70% ethanol extraction conditions. In local adaptability tests, yield of 'Geonganghongmi' was 4.5MT/ha about 86% of 'Nampyeongbyeo' and 102% of 'Jeogjinju', respectively. 'Geonganghongmi' is suitable for southern and middle plain area of Korea.
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