Geongyang2: Low Glutelin and Amylose Content Rice Cultivar with Mid-Maturing
2015
Lee, J.H., Rural Development Administration (RDA), Jeonju, Repulic of Korea | Lee, J.Y., National Institute of Crop Science (NICS), RDA, Miryang, Republic of Korea | Song, Y.C., National Institute of Crop Science (NICS), RDA, Miryang, Republic of Korea | Yeo, U.S., National Institute of Crop Science (NICS), RDA, Miryang, Republic of Korea | Park, N.B., National Institute of Crop Science (NICS), RDA, Miryang, Republic of Korea | Kim, C.S., Rural Development Administration (RDA), Jeonju, Repulic of Korea | Sohn, Y.B., National Institute of Crop Science (NICS), RDA, Miryang, Republic of Korea | Park, D.S., National Institute of Crop Science (NICS), RDA, Miryang, Republic of Korea | Han, S.I., National Institute of Crop Science (NICS), RDA, Miryang, Republic of Korea | Kim, S.Y., National Institute of Crop Science (NICS), RDA, Miryang, Republic of Korea | Kim, W.J., National Institute of Crop Science (NICS), RDA, Miryang, Republic of Korea | Choi, D.S., National Institute of Crop Science (NICS), RDA, Miryang, Republic of Korea | Nam, M.H., National Institute of Crop Science (NICS), RDA, Miryang, Republic of Korea | Lee, J.G., National Institute of Horticultural and Herbal Science (NIHHS), RDA, Eumseong, Republic of Korea | Cho, J.H., National Institute of Crop Science (NICS), RDA, Miryang, Republic of Korea
In chronic renal failure, to reduce the burden on the kidneys, it is necessary to provide patients with therapy based on a low-protein diet. To cope with this situation, low and easy to-digest protein rice variety is helpful. Geongyang2, low glutelins rice cultivar, was developed by the National Institute of Crop Science (NICS), RDA, Miryang, Korea in 2012. Geongyang2was derived from a cross between Junambyeo andChugoku 173 as a source of low glutelin and amylose. The pedigree of Geongyang2was YR24174-B-B-B-B-46 and designated as the Milyang262 in 2009. The local adaptability test of Milyang262 was carried out at six locations from 2010 to 2012. Geongyang2 is a mid-maturing ecotype with 65cm in culm length and the number of spikelet/panicle and 1,000 grain weight of brown rice were slightly lower compared to those of Nampyeongbyeo. Geongyang2 is resistant to bacterial blight and virus disease while susceptible to major insect and pest. The glutelin and amylose contents of Geongyang2 were 63.1% and 11.5%, respectively. The milled rice yield of Gyeongyang2 is 4.61MT/ha at the ordinary transplanting of the local adaptability test. This cultivar would be adaptable to the plain paddy field of middle, honam and yeongnam province of Korea under ordinary cropping system.
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