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"Soo-Kwon Park"

New Cultivar Developed

고단백 내탈립 장류용 콩 품종 ‘하이프로’
Soybean Cultivar ‘Hipro’ for Tofu and Soymilk with High Seed Protein Content and Pod Shattering Resistance
Ji-Min Kim, Ilseob Shin, Soo-Kwon Park, Man Soo Choi, Jeong-Dong Lee, Bo-Keun Ha, Juseok Lee, Yang Jae Kang, Soon-Chun Jeong, Jung-Kyung Moon, Sungteag Kang
Korean. J. Breed. Sci. 2021;53(1):60-68.
Published online March 1, 2021
DOI: https://doi.org/10.9787/KJBS.2021.53.1.60

A yellow soybean cultivar called ‘Hipro’ was developed using the single seed descent (SSD) method by crossing ‘Saedanbaek’ (SS92414 ×MD87L) and ‘Daepung’ (Baekwon × Sinpaldal2). A preliminary yield trial (PYT), advanced yield trial (AYT), and regional yield trial (RYT) were conducted in three regions. ‘Hipro’ has a determinate growth habit, white flowers, and a spherical seed shape. In the regional yield trial, the flowering and maturity dates of ‘Hipro’ were August 4 and October 17, respectively, and the 100-seed weight was 22.2 g, which was lower than that of Daewon (26 g). Additionally, ‘Hipro’ showed resistance to lodging, soybean mosaic virus (SMV), bacterial blight, and pod shattering. The seed protein content of ‘Hipro’, which was of particular interest in this study, was 53.9%, which was higher than that of ‘Daepung’ (41.5%), and the total amino acid content without tryptophan was 43.6%, 19% higher than that of ‘Daepung’. The mean yield of ‘Hipro’ in RYT was 2.23 ton/ha, which was 91.3% of the yield of ‘Daewon’. However, ‘Hipro’ showed an 11% higher yield than Daewon in Paju. As a result of the tofu characteristic test, 'Hipro' is suitable for making soy milk and tofu due to its high solid content (12.67 Brix) and protein content (13.68%) and high yield (325%) of tofu. Overall, ‘Hipro’ had high protein content, excellent processing quality for tofu and soy milk, and strong resistance to disease and pod shattering that will greatly contribute to the consumption of soybeans in Korea. (Registration No. 7735).

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기능성 흑찰거대배아미 조생종 벼 품종 ‘눈큰흑찰’
A Waxy Black Giant Embryo Earley Maturing Rice Variety ‘Nunkeunheugchal’
Dong-Soo Park, Un-Ha Hwang, Soo-Kwon Park, Jong-Hee Lee, Sang-Ik Han, Jun-Hyeon Cho, Ji-Yoon Lee, Seong-Hwan Oh, Ki-Chang Jang, Woo-Duck Seo, Dong-Jin Shin, Sang-Yeol Kim, You-Chun Song, Un-Sang Yeo, No-Bong Park, Min-Hee Nam, Jong-Ki Lee
Korean. J. Breed. Sci. 2015;47(1):68-74.   Published online March 31, 2015
DOI: https://doi.org/10.9787/KJBS.2015.47.1.068

Nunkeunheugchal (registration No. 01-0001-2014-4), a black waxy giant embryo rice cultivar, was developed by the rice breeding team of National Institute of Crop Science (NICS), RDA in 2012. This cultivar was derived from the cross between get and Josaengheugchal in 2004/2005 winter season, and selected by a promising line, YR25277-B-B-314-2, was selected and designated as the line of Milyang263 in 2009. The local adaptability test of Milyang263 was carried out at four locations from 2010 to 2012 and it was named as Nunkeunheugchal. This variety is a early maturity cultivar. It has 65 cm in culm length and 72 spikelets per panicle, and 1,000 grain-weight of brown rice is 17.8 g which is less than that of Josaengheugchal. This variety is resistant to leaf blast, but susceptible to bacterial blight, neck blast, virus disease and insect pest. The yield potential of Nunkeunheugchal was about 3.54 MT/ha as brown rice at ordinary fertilizer level in local adaptability test for three years. Nunkeunheugchal possesses benefits to rice consumers because of high amounts of GABA, anthocyanin, calcium and iron. This variety would be adaptable to the paddy field of middle and southern plain region of Korea.

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