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동할미 발생이 적은 고품질 중만생종 벼 ‘영진’

Youngjin: A Rice Variety with Low Cracked Kernels, Mid-late Maturation, and Good Eating Quality

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초록

The rice variety ‘Youngjin’ is a japonica rice (Oryza sativa L.) with good eating quality, lodging tolerance, and resistance to therice stripe virus (RSV) and bacterial blight disease (BB). It was developed by the rice breeding team of the Department of Southern Crop,NICS, RDA, in 2016. This variety was derived from a three-way cross between ‘Iksan486’, ‘YR22722-B-B-B-25-1’, and ‘Chengmu,’ withgood eating quality, in the summer of 2007. The pedigree of ‘Youngjin’ was YR27874Acp46-1, and was designated as ‘Miyang283’ in 2012. After local adaptability tests at five different locations from 2014 to 2016, it was released under the name ‘Youngjin’ in 2016. ‘Youngjin’is a mid-late maturing ecotype with a short culm length of 67 cm. This variety was found to be resistant to the K1, K2, and K3 races ofBB, and RSV, and moderately resistant to leaf blast disease. The milled rice kernels of ‘Youngjin’ were translucent and clear, without whitecore and belly, and had good eating quality, according to a panel test. This variety showed a lower percentage of cracked kernels comparedto other susceptible cultivars. The milled rice yield of ‘Youngjin’ was 568 kg/10a, under normal levels of fertilization, determined by thelocal adaptability tests. This cultivar is adaptable to the Yeongnam plain area (Registration No. 7653).

Abstract

The rice variety ‘Youngjin’ is a japonica rice (Oryza sativa L.) with good eating quality, lodging tolerance, and resistance to therice stripe virus (RSV) and bacterial blight disease (BB). It was developed by the rice breeding team of the Department of Southern Crop,NICS, RDA, in 2016. This variety was derived from a three-way cross between ‘Iksan486’, ‘YR22722-B-B-B-25-1’, and ‘Chengmu,’ withgood eating quality, in the summer of 2007. The pedigree of ‘Youngjin’ was YR27874Acp46-1, and was designated as ‘Miyang283’ in 2012. After local adaptability tests at five different locations from 2014 to 2016, it was released under the name ‘Youngjin’ in 2016. ‘Youngjin’is a mid-late maturing ecotype with a short culm length of 67 cm. This variety was found to be resistant to the K1, K2, and K3 races ofBB, and RSV, and moderately resistant to leaf blast disease. The milled rice kernels of ‘Youngjin’ were translucent and clear, without whitecore and belly, and had good eating quality, according to a panel test. This variety showed a lower percentage of cracked kernels comparedto other susceptible cultivars. The milled rice yield of ‘Youngjin’ was 568 kg/10a, under normal levels of fertilization, determined by thelocal adaptability tests. This cultivar is adaptable to the Yeongnam plain area (Registration No. 7653).

참고문헌 (10)

  1. 이종희, "영남 평야지 조생종 벼 조기재배가 수량 및 품질에 미치는 영향", 한국작물학회지, 53(3), pp.326~332 (2008), 한국작물학회
  2. Morita S, "Prosect for developing measures to prevent high-temperature damage to rice grain ripening Jap", J Crop Sci, 77, pp.1~12 (2008)
  3. Nakagomi K, "Selection of standard rice cultivars for evaluating tolerance to rice cracking in the western region of japan", Jpn J Crop Sci, 89, pp.143~150 (2020)
  4. Nagata K, "Effect of air temperature during the early grain-filling stage on grain filling in rice", Jpn J Crop Sci, 73, pp.336~342 (2004)
  5. Pinson SRM, "Three quantitative traits loci conferring resistance to kernel fissuring in rice identified by selective genotyping in two tropical japonica population", Crop Science, 53, pp.2343~2443 (2013)
  6. 2014 Project Plan for Collaborative Research Program to Develop New Variety of Summer Crop, "Rural Development Administration", 5~52 (2014)
  7. 2014 Report of new cultivar development and research in summer crop, "Rural Development Administration", 3~126 (2014)
  8. Takita T, "Varietal difference in crack formation in Japonica and Indica rice", Japan J Breed, 42, pp.397~402 (1992)
  9. Takita T, "Varietal differences relative traits and inheritances of crack formation in rice", Bull Natl Agri Res Cent Tohioku Reg, 100, pp.41~48 (2002)
  10. Yamada K, "Effects of high temperature stress during the early stages of ripening on endosperm structures in rice varieties differed from the appearance rate of cracked grains", Jpn J Crop Sci, 77(sup. 1), pp.220~221 (2008)

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