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"Jung Sook Sung"

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"Jung Sook Sung"

New Cultivar Developed
쓰러짐과 불마름병에 강한 아주까리콩 ‘까리1호’
Lodging and Bacterial Pustule Resistant Soybean Cultivar ‘Kkari1ho’ with a Net-Like Cracking Seed Coat
Jihee Park, Jeong Hyun Seo, Beom Kyu Kang, Jun Hoi Kim, Su Vin Heo, Won Young Han, Myoung Hee Lee, Ga Eun Kim, Tae Joung Ha, Jung Sook Sung, Ki Young Kim
Korean. J. Breed. Sci. 2026;58(2):209-217.   Published online June 1, 2026
DOI: https://doi.org/10.9787/KJBS.2026.58.2.209
‘Kkari1ho’ is a net-like, cracking-patterned seed-coated soybean cultivar developed from a crossing of ‘Cheongja3ho’ and ‘IT105279 (landrace)’ in 2009. The F1 and F2 populations were grown for two years, and promising lines were selected using the pedigree method from F3 to F5. A preliminary yield trial (PYT) and an advanced yield trial (AYT) were conducted from 2016 to 2017, and a regional yield trial (RYT) was conducted in seven regions from 2018 to 2020. ‘Kkari1ho’ is determinate, has an oval leaflet shape, purple flowers, and net-like cracking-patterned seeds. The flowering and maturation dates were August 3 and October 23, respectively. For quantitative characteristics, ‘Kkari1ho’ had a smaller seed weight (32.7 g/100 seeds), while its plant height and first pod height were similar to those of ‘Cheongja3ho.’ While ‘Kkari1ho’ was highly resistant to lodging under standard field conditions, its lodging resistance tended to decrease in high-density plots. Regarding pod shattering, ‘Kkari1ho’ exhibited higher resistance than ‘Cheongja3ho’ in both RYT field and indoor tests. ‘Kkari1ho’ showed comparable resistance to bacterial pustule to that of ‘Cheongja3ho’ in both field and artificial inoculation tests. In contrast, its resistance to soybean mosaic virus (G6H strain) was lower in inoculation tests but comparable in field tests. The mean yield of ‘Kkari1ho’ in the RYT was 252 kg/10a, which was a 4% higher mean yield across the region than that of ‘Cheongja3ho.’ ‘Kkari1ho’ is expected to replace landraces due to its resistance to lodging and bacterial pustule (Registration number: 9450).
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대립 내탈립 녹색종피 유색콩 ‘청미인’
Large-Seeded Green Seed-Coated Soybean Cultivar ‘Cheongmiin’ with Pod Shattering Tolerance
Jeong Hyun Seo, Won Young Han, Jong Min Ko, In Youl Baek, Byong Won Lee, Hong Tai Yun, Young Hoon Lee, Sang Ouk Shin, Ki Won Oh, Tae Joung Ha, Man Soo Choi, Beom Kyu Kang, Hyun Yeong Kim, Jee Hee Park, Jun Hoi Kim, Jung Sook Sung, Chan Sik Jung
Korean. J. Breed. Sci. 2021;53(3):311-317.
Published online September 1, 2021
DOI: https://doi.org/10.9787/KJBS.2021.53.3.311

‘Cheongmiin’ is a green seed-coated soybean cultivar developed from a cross between ‘Cheongjakong’ and ‘Daemang’ in 2002. The F1 and F2 populations were grown for 2 years, and promising lines were selected based on the pedigree method from generations F3 to F5. Preliminary and advanced yield trials were conducted from 2009 to 2010, and regional yield trials (RYTs) were conducted in eight regions from 2011 to 2013. ‘Cheongmiin’ is a determinate soybean with white flowers, green cotyledons, and spherical green seeds. The average flowering and maturing dates of ‘Cheongmiin’ were August 1st and October 22nd, respectively. In terms of quantitative characteristics, ‘Cheongmiin’ has a larger seed size (34.3 g/100-seed weight) than that of ‘Cheongdu1ho’ (24.5 g/100-seed weight), and has also been shown to be tolerant to lodging and pod shattering in the field in RYTs and oven drying tests, respectively. Furthermore, ‘Cheongmiin’ has been found to be resistant to bacterial pustules in the field and soybean mosaic viruses (G5H and G6H strains) in inoculation tests. The mean yield of ‘Cheongmiin’ in the RYTs was 272 kg/10 a, which was 4% higher than that of ‘Cheongdu1ho’. Given its large seed size and seed coat color, ‘Cheongmiin’ is expected to be highly useful for cooking with rice and for the preparation of rice cakes (Registration No. 7688).

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쓰러짐에 강하고 알이 작아 콩나물 수율이 높은 나물용 콩 품종 ‘해원’
Lodging Tolerance and High Sprout Yield with Small Seed Soybean Cultivar ‘Haewon’ for Soy-sprout
Beom Kyu Kang, Jeong Hyun Seo, Hong Sik Kim, Hyun Tae Kim, Young Hoon Lee, Byung Won Lee, Man Soo Choi, Tae Joung Ha, Jong Min Ko, Hong Tai Yun, In Youl Baek, Jung Sook Sung, Sang Ouk Shin, Ji Hee Park, Min Jeong Seo, Jin Sil Choi, Woo Sam Yang, Chan Sik Jung
Korean. J. Breed. Sci. 2021;53(1):53-59.
Published online March 1, 2021
DOI: https://doi.org/10.9787/KJBS.2021.53.1.53

‘Haewon’ is a soybean cultivar for soy-sprouts. ‘Bosug’ and ‘Somyeong’ were crossed in 2003, and promising lines were selected from F3 to F6 using the pedigree method (Pedigree: HS1450-2B-3-1-1-2-2-1). Preliminary yield (PYT) and advanced yield trials (AYT) were conducted from 2010 to 2011, and regional yield trials (RYT) were conducted in five regions (Suwon, Naju, Miryang, Dalseong, and Jeju) from 2012 to 2014. In the RYTs, ‘Haewon’ had a smaller seed weight and higher yield than the standard cultivar ‘Pungsannamulkong’, which are desirable characteristics for the soy-sprout process. The morphological characteristics of ‘Haewon’ are as follows: determinate plant type, purple flowers, gray pubescence, yellow pods, small, yellow spherical seeds (8.1 g/100-seeds), and light brown hilum. The flowering and maturity dates were July 29th and October 6th, respectively. Plant height and first pod height were 55 cm and 12 cm, respectively. The lodging tolerance was also strong compared to that of ‘Pungsannamulkong’. The germination rate, total length, hypocotyl length, thickness, and sprout yield of soybean sprouts were 97%, 19.1 cm, 8.8 cm, 2.1 mm, and 513%, respectively. The yield in adaptable regions was 337 kg/10 a, 16% higher than that of ‘Pungsannamulkong’. ‘Haewon’ can be used for soy-sprout with favorable seed size and soy-sprout characteristics, such as germination and sprout-yield. (Registration No. 6637).

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