A new small redbean cultivar, ‘Hongjin’, was developed by an artificial cross between ‘SA9206-2B-6-1-2-3-3-2’ and ‘Suwon38’ at the National Institute of Crop Science, RDA, Korea, in 1999, and selected for the further yield trials under the name ‘Miryang 23’. It was prominent and had desirable agronomic traits, such as high grain quality, lodging tolerance, and high antioxidant activity in the regional adaptation yield trials (RYT) from 2013 to 2015. ‘Hongjin’ was finally released as a new cultivar in 2015. ‘Hongjin’ has some distinct phenotypic traits, including a semi-determinate growth habit, yellow flowers, green embryonic axis, dark red seed coat, white hilum, and small spherical seeds (15.4 g per 100 seeds). The average yield of ‘Hongjin’ was 1.99 MT/ha in the regional yield trials (RYT), which was slightly higher than that of the check cultivar ‘Chungju’ (1.84 MT/ha) (Registration No. 7510).

A new small red bean cultivar, ‘Geomguseul’, was artificially crossed between ‘Chilbo’ and ‘SA8412-3-1-4-3-3-2-3’ in 1998, fixed excellent agronomic characters by pedigree breeding method, and selected for the further trials with the name of ‘Miryang 10’. It was prominent and showed good result, such as high grain quality, lodging resistance, and high-antioxidant activity in the regional adaptation yield trials (RYT) for three years from 2009 to 2011 and released for the public consumption as the name of ‘SA9801-24-4-3-1’ in 2011. ‘Geomguseul’ has a semi-determinate growth habit, yellow flower, green embryonic axis, black seed coat, white hilum, and small spherical seed (12.2 grams per 100 seeds). The average yield of ‘Geomguseul’ was 2.01 MT/ha in the regional yield trials (RYT) carried out for three years from 2009 to 2011 which was a little higher than that (1.98 MT/ha) of the check variety, ‘Chungju’.

A new small red bean cultivar, ‘Arari’, was artificially crossed between ‘SA9411-2B-1-1-2’ and ‘Suweon38’ in 1997, fixed excellent agronomic characters by pedigree breeding method, and selected for the further trials with the name of 'Milyang 8'. It was prominent and showed good result, such as high grain quality, Lodging resistance, and high yielding, from the regional adaptation yield trials (RYT) for three years from 2009 to 2011 and released for the public consumption as the name of ‘Arari’in 2011. ‘Arari’ has a semi-determinate growth habit, yellow flower, green embryonic axis, dark red seed coat, white hilum, and small spherical seed (13.1 grams per 100 seeds). The average yield of ‘Arari’ was 2.05 MT/ha in the regional yield trials (RYT) carried out for three years from 2009 to 2011 which was a little higher than that (1.99 MT/ha) of check variety, ‘Chungju’.