‘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)
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,