, 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 A new soybean [
‘Saedeul’ is a saddle-patterned seed-coated soybean cultivar developed from a cross between ‘IT224183’ and ‘Daepung (IT214696)’ in 2010. The F1 and F2 generations were grown for 2 years, and promising lines were selected using the pedigree method from F3 to F5 generations. The preliminary yield trials (PYT) and advanced yield trials (AYT) were conducted during 2016-2017, followed by regional yield trials (RYT) across seven regions during 2018-2020. ‘Saedeul’ is a determinate cultivar, having oval-shaped leaflets, purple flowers, and saddle-patterned seeds. The flowering and maturing date were August 11 and October 28, respectively. Considering its quantitative characteristics in comparison to the ‘Cheongja3ho’ cultivar, ‘Saedeul’ has a smaller seed size (27.9 g/100 seeds) and shorter plant height, but a higher first pod height. ‘Saedeul’ showed greater tolerance to both lodging and pod shattering in the RYT field and indoor tests than ‘Cheongja3ho’. It demonstrated resistance to bacterial pustule in field tests but was susceptible to soybean mosaic virus (G6H strain) in inoculation tests. The mean yield of ‘Saedeul’ in the RYT was 261 kg/10a, exceeding that of ‘Cheongja3ho’. ‘Saedeul’ is expected to replace landraces due to its resistance to lodging and bacterial pustule. (Registration number: 9456)
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The soybean cultivar, ‘Jangpung’, is adaptable for mechanized harvest with fewer branches and a higher first pod height. ‘Jangpung’ was developed through a pedigree method involving a cross between ‘Shingi’ and ‘SS03102-B-B-3S-21-4’ cultivars from 2010-2021. The promising line, ‘YS2243-B-B-35-1-1-1’, was selected and designated as ‘Milyang361’, whereafter it was tested in regional yield trials (RYT) for three years from 2019-2021. Its performance and stability were approved after the RYT and thereafter released as ‘Jangpung’. It has a determinate growth habit, purple flowers, grey pubescence, yellow seed coat, yellow hilum, spherical seed shape, and large seeds (28.2 g/100 seeds). ‘Jangpung’ is a late-maturing cultivar; its flowering and maturing dates were 9 August and 22 October, respectively. ‘Jangpung’ exhibited resistance to bacterial pustule and soybean mosaic virus, as well as tolerance to lodging and shattering resistance, as confirmed through genetic validation using the marker,
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‘Seum’ is a black-seed coated soybean cultivar developed from crossing ‘IT21785’ and ‘Wonkwang (IT218557)’ in 2010. F1 and F2 populations were grown for 2 years and promising lines were selected by pedigree method from F3 to F5. The preliminary yield trial (PYT) and advanced yield trial (AYT) were conducted from 2016 to 2017, and regional yield trial (RYT) in 7 regions was conducted from 2018 to 2020. ‘Seum’ is determinate, has a lanceolate leaflet shape, purple flowers, green cotyledons, and black spherical seeds. Flowering and maturing dates were Aug. 4 and Oct. 21, respectively. ‘Seum’ has small seed size (11.4 g/100-seed) and shorter plant height than that of ‘Socheongja’. ‘Seum’ was more tolerant to lodging and pod shattering in regional field and indoor trials than that of ‘Socheongja’. ‘Seum’ was resistant to bacterial pustule during field tests and to soybean mosaic virus (G6H strain) during inoculation tests. The mean yield of ‘Seum’ in RYT was 292 kg/10a which was higher than that of ‘Socheongja’. ‘Seum’ is expected to rapidly replace the elite variety ‘Socheongja’ based on its lodging tolerance and high yield potential (Registration No. 9449).
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‘Cheongja5’ is a black seed coat soybean cultivar developed from crossing ‘Milyang181’ and ‘YS1886 (Cheongdu1/Tanbaguro)’ in 2007. Promising lines were selected using the pedigree method from F3 to F5. The preliminary and advanced yield trials were conducted in 2013 and 2014, respectively. Regional yield trials (RYT) were conducted in seven regions from 2015 to 2017. ‘Cheongja5’ has a determinate growth habit, oval leaflet shape, brown pubescence, and white flowers. The seed of ‘Cheongja5’ has a black seed coat color with green cotyledon. Flowering and maturing dates were Aug. 3 and Oct. 24, respectively. Regarding the quantitative characteristics, ‘Cheongja5’ has large seed size (37.0 g/100-seed weight) and more pods than ‘Cheongja3’. ‘Cheongja5’ was tolerant to pod shattering in field and indoor RYT tests. ‘Cheongja5’ was resistant to bacterial pustule in the field and soybean mosaic virus (strains G6H and G7H) in the inoculation test. Although its seed quality-related characteristics were almost similar to those of ‘Cheongja3’, it contained more anthocyanin which is a main functional component of black soybean. The mean yield of ‘Cheongja5’ in the RYTs was 343 kg/10 a which was 30% higher than that of ‘Cheongja3’. ‘Cheongja5’ is expected to be widely cultivated as a material for making soy-food that uses black soybean because of its large seed size and high yield potential (Registration No. 7687).
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A soybean cultivar, “Seonyu2ho” for double cropping using soy-paste and tofu was developed in 2011 using the pedigree method by crossing “Milyang235ho” and “Jungmo3004ho.” A promising line, YS2441-B-2S-11-3, was selected and named as “Milyang334.” It demonstrated prominent early maturing, shattering resistance, and high yield in regional yield trials (RYTs) from 2017 to 2019, and was released by the name “Seonyu2ho.” The cultivar showed a determinate growth habit, white flowers, grey pubescence, yellow seed coat, yellow hilum, flat-spherical seed shape, and large seed size (27.9 g per 100 seeds). “Seonyu2ho” matured on October 5 (112-growing day cycle) in RYT and was suitable for double cropping with winter crops, such as wheat, barley, and onion. It was resistant to bacterial pustule and soybean mosaic virus and tolerant to lodging in fields. Particularly, “Seonyu2ho” showed a high yield (3.34 ton/ha) and shattering resistance, even if the previously developed early matured cultivars exhibited low yield and easy shattering. Overall, “Seonyu2ho” can contribute to stable soybean production in double cropping.
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‘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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‘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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‘Taecheong’ is a black soybean cultivar developed from crossing ‘YS1593(Milyang136×Tanbaguro)’ and ‘Cheongja2’ in 2005. F1 and F2 populations were grown for 2 years and promising lines were selected by pedigree method from F3 to F5. The preliminary yield trial (PYT) and advanced yield trial (AYT) were conducted from 2012 to 2013, and a regional yield trial (RYT) in seven regions was conducted from 2014 to 2016. ‘Taecheong’ is determinate, with purple flower, green cotyledon, and black spherical seed. Flowering date and maturing date were August 3 and October 20, respectively. Regarding quantitative characteristics, ‘Taecheong’ has a larger seed size (44.5 g/100-seed weight) than that of ‘Cheongja3’ (35.8 g/100-seed weight). ‘Taecheong’ was tolerant to pod shattering and lodging at the RYT field and indoor test. In addition, ‘Taecheong’ was resistant to bacterial pustule during the field test, and to soybean mosaic virus (G6H strain) during the inoculation test. Although its seed quality-related characteristics were similar to those of ‘Cheongja3’, it contained more anthocyanin in its seed-coat, which is a primary functional component of black soybean. The mean yield of ‘Taecheong’ in RYT was 240 kg/10a, which was 94% of the yield of ‘Cheongja3’. ‘Taecheong’ is expected to be used as raw material for soy products, such as for preparing soybean chocolates, because of its large seed size (Registration number: 7104).
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The soybean cultivar, ‘Saegeum’, has been developed for preparing soy-paste and tofu. The soybean cultivars ‘Daepung’ and ‘SS98207-3SSD-168’ were crossed in 2003 to obtain ‘Saegeum’. Single seed descent method was used to advance the generation from F3 to F5, and the plant lines with promising traits were selected from F6 to F7 by pedigree method. The preliminary yield (PYT) and advanced yield trials (AYT) were conducted from 2009 to 2010, and the regional yield trial (RYT) was conducted in 12 regions between 2011 and 2013. The morphological characteristics of ‘Saegeum’ were as follows: determinate plant type, white flower, tawny pubescence color, and brown pod color. Flowering and maturity dates were August 2, XXXX and October 17, XXXX, respectively. Plant height, first pod height, number of nodes, number of branches, and number of pods were 79 cm, 18 cm, 16, 2.3, and 44, respectively. The seed characteristics of ‘Saegeum’ were as follows: yellow spherical shape, yellow hilum, and the 100-seed weight was 25.4 g. ‘Saegeum’ was resistant to bacterial pustule and SMV in the field test, and its lodging resistance was mildly strong, whereas its shattering resistance was excellent. The ability of this cultivar to be processed into tofu, soybean malt, and other fermented products was comparable with that of ‘Daewonkong’. The yield of ‘Saegeum’ in the adaptable regions was 3.02 ton ha-1. Thus, ‘Saegeum’ is adaptable to mechanized harvesting because of its high first pod height, as well as lodging and shattering resistance. (Registration number: 5929)
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The soybean cultivar ‘Neulchan’ was developed for production of soy-paste and tofu. SS91501-9-1-1 and SS96205 (F2) were crossed in 1998, and F3 to F7 were selected by the pedigree method. A preliminary yield trial (PYT) and an advanced yield trial (AYT) were conducted from 2006 to 2008, and a regional yield trial (RYT) in nine regions was conducted from 2009 to 2011. In the RYT, ‘Neulchan’ was stable in variable environments and generated high yield. ‘Neulchan’ was determinate with white flower, light brown pod color, yellow spherical seed, and yellow hilum. Its flowering date and maturity date were Jul. 30 and Oct. 9, respectively. The plant height was shorter than that of ‘Daewonkong’ (a standard cultivar). ‘Neulchan’ had the same node number (14), higher first-pod height (12 cm), and lighter seed weight (21.7 g/100-seed weight) than those of ‘Daewonkong’ (14, 11, and 24.2 g/100-seed weight, respectively). ‘Neulchan’ had high resistance to bacterial pustule, and its resistance to soybean mosaic virus was similar to that of ‘Daewonkong’. The yield and color of ‘Neulchan’ tofu were similar to those of ‘Daewonkong’ tofu, but the hardness was lower than that of ‘Daewonkong’ tofu. The soybean malt scent, fermented soybean yield, and γ-polyglutamic acid (γ-PGA) of ‘Neulchan’ were 3, 215%, and 24.6 mg/g, respectively. Its yield in adaptable regions was 307 kg/10a, higher than that of ‘Daewonkong’. ‘Neulchan’ was expected to be cultivated and used widely for soy-paste and tofu production. (Registration No. 4904).
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‘Aram’ is a soybean cultivar developed for soy-sprout. It was developed from the crossing of ‘Bosug’ (
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A soybean cultivar “Chamol” for double cropping for use as soy-paste and tofu was developed using a pedigree method in 2011 as a cross between “Shinpaldal2” and “Keunol.” A promising line, SS99502-2B-89-1-3-4-1-1, was selected and designated as “Milyang210”. It was promising and showed good results from regional yield trials (RYTs) for 3 years from 2009 to 2011 and released with the name “Chamol.” It has a determinate growth habit, white flowers, gray pubescence, yellow seed coat, yellow hilum, spherical seed shape, and large seeds (27.7 g per 100 seeds). The maturity date of “Chamol” was September 18 (100 day growing period) in RYT and it is suitable for double cropping with winter crops such as onion. “Chamol” was resistant to bacterial pustule and soybean mosaic virus and tolerant to lodging in fields. Furthermore, the average yield of “Chamol” was 2.51 ton/ha in the regional yield trials conducted for 3 years from 2009 to 2011.
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Cheongja4’ is a black soybean cultivar developed via a cross between ‘Milyang148’ and ‘Daemang’ in 2005. F1 and F2 populations were grown for 2 years, and promising lines were selected using the pedigree method from F3 to F5. The preliminary yield trial (PYT) and advanced yield trials (AYT) were conducted from 2011 to 2012, and regional yield trial (RYT) in 7 regions was conducted from 2013 to 2015. ‘Cheongja4’ is determinate and has purple flowers, a green cotyledon, and black spherical seeds. Flowering date and maturing date were Aug. 5 and Oct. 19, respectively. With respect to its quantitative characteristics, ‘Cheongja4’ has more pods (50) and smaller seed size (30.1g/100-seed weight) than ‘Cheongja3’ (38 and 35.2g/100-seed weight). ‘Cheongja4’ was revealed to be more tolerant to pod shattering than ‘Cheongja3’ in RYT field and indoor test. ‘Cheongja4’ had high levels of resistance to bacterial pustule and soybean mosaic virus in field and inoculation test. Although its seed quality-related characteristics were similar to those of ‘Cheongja3’, it contained more anthocyanin in the seed coat; this is the main functional component of black soybean. The mean yield of ‘Cheongja4’ in RYT was 314kg/10a, 123% of the yield of ‘Cheongja3’. ‘Cheongja4’ is expected to be widely used for variable functional purposes, such as cooking with rice and the production of processed food.
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Haepum’ is a soybean cultivar for soy sprouts. ‘Bosug’ and ‘Suwon 214’ were crossed in 2001, and promised lines were selected from F3 to F5 using the pedigree method (Pedigree: HS1273-2B-4-1-2-3-3). Preliminary yield (PYT) and advanced yield (AYT) trials were conducted from 2008 to 2009, and regional yield trials (RYT) in four regions (Suwon, Naju, Miryang, Jeju) were conducted from 2010 to 2012. In RYT, ‘Haepum’ had higher plant height and first pod height than other cultivars, which are desirable characteristics for mechanized harvest. Morphological characteristics of ‘Haepum’ are as follows: determinate, white flowers, grey pubescence, yellow pods, yellow spherical small seeds (10.4 g/100 seeds), and light brown hilum. The flowering and maturity dates were July 29 and October 6, respectively. Plant height was 61 cm, 6 cm longer than that of ‘Pungsannamulkong’ (standard cultivar). Moreover, the first pod height of ‘Haepum’ was 15 cm, 6 cm longer than that of ‘Pungsannamulkong’. The lodging tolerance was also stronger (1) than that of ‘Pungsannamulkong’ (6). The germination rate, total length, hypocotyl length, thickness, and sprout yield of ‘Haepum’ soybean sprouts were 99%, 20.6 cm, 9.7 cm, 2.1 mm, and 453%, respectively. The yield in adaptable regions was 301 kg/10 a, which was 10% higher than that of ‘Pungsannamulkong’. ‘Haepum’ could be broadly used for soybean sprout culture and an adequate cultivar for conversion to jeju and mechanized harvesting.
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A new colored soybean variety ‘Jungmo3005’ was developed as a breeding parent. ‘Cheongjakong’ and ‘Geomjeongkong3’ were crossed in 2000. F1 and F2 populations were grown for 2 years and selected by pedigree method from F3 to F5. The preliminary yield trial (PYT) and advanced yield trial (AYT) were conducted from 2006 to 2007, and regional yield trial (RYT) in 9 regions was conducted from 2008 to 2010. ‘Jungmo3005’ is determinate, white flower, green cotyledon, green spherical seed and yellow hilum. Flowering date and maturing date were July 30 and Oct. 7, respectively. Other quantitative characteristics of ‘Jungmo3005’ were similar to ‘Cheongdu1’, but it was more tolerant to lodging and shattering than ‘Cheongdu1’ at RYT field and indoor test. Although ‘Jungmo3005’ showed symptom of mosaic disease in inoculation test at greenhouse, it had high level of resistance to soybean mosaic virus and bacterial pustule diseases at field. The yield of tofu of ‘Jungmo3005’ was more than that of ‘Cheongdu1’. The mean yield of ‘Jungmo3005’ in RYT was 256kg/10a which was 97% of the yield of ‘Cheongdu1’. ‘Jungmo3005’ is expected to be widely used as a breeding parent to cross with other varieties and lines for creating colored soybean cultivars with tolerance to lodging, shattering and bacterial pustule.
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Soybean cultivar ‘Seonpung’ was developed for soy-paste and tofu. Suwon 224 and YS1325-3S-2 were crossed in 2003 and selected from F3 to F5 by pedigree method. The preliminary yield trial (PYT) and advanced yield trial (AYT) were conducted from 2009 to 2010, and regional yield trial (RYT) in twelve regions was conducted from 2011 to 2013. In RYT, ‘Seonpung’ was stable in variable environments and a high yield cultivar. ‘Seonpung’ is determinate, white flower, yellow spherical seed and yellow hilum. Flowering date and maturity date were Aug. 5 and Oct. 19, respectively. Plant height was similar to ‘Daewonkong (standard cultivar)’. However ‘Seonpung’ has higher node number (16) and seed weight (25.9g/100-seed weight) than ‘Daewonkong’ (14 and 24.2g/100-seed weight). ‘Seonpung’ is resistant to root rot, and it also has high level of resistance to bacterial pustule and soybean mosaic virus. The yield of tofu of ‘Seonpung’ was 241%, and noticeably lighter, and solidity was higher than ‘Daewonkong’. Soybean malt scent, fermented soybean yield and γ-polyglutamic acid (γ-PGA) of ‘Seonpung’ were 4, 181% and 31.7㎎/g. The yield in adaptable regions was 340kg/10a (21% increase compared to ‘Daewonkong’). ‘Seonpung’ is expected to be cultivated and used widely for soy-paste and tofu. (Registration number: 5931)
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A soybean cultivar for soy-paste, ‘Uram’, was developed from the cross between ‘Suwon190’ and ‘SS99244’ (Shinpaldal-2 X T243) by soybean breeding team at the National Institute of Crop Science (NICS) in 2010. A promising line, SS00232-B-B-3SSD-9-4-1-1, was selected and designated as the name of ‘Milyang188’. It was prominent and had good result from regional adaptation yield trials (RYT) in southern area of Korea for three years from 2008 to 2010 and released as the name of ‘Uram’. It has a determinate growth habit, white flower, gray pubescence, yellow seed coat, yellow hilum, spherical seed shape and large seed (25.8 grams per 100 seeds). ‘Uram’ was found to be resistant to bacterial pustule and soybean mosaic virus, the major soybean diseases in Korea. The lowest pod height of ‘Uram’ was 19cm and it will be able to reduce seed loss during mechanical harvesting. The average yield of ‘Uram’ is 3.27 ton per hectare in southern double cropping area. Through these results, ‘Uram’ is soybean cultivar that is favorable for mechanization harvesting, resistant to diseases and highly yield.
Registration number: 4903
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