‘‘Ssagirang’ is a hulled barley cultivar that exhibits high resistance to lodging and cold stress. It demonstrates high yield potential and superior functional properties in barley sprouts. The heading date of ‘Ssagirang’ was April 24, and its maturity date was June 2. The plant height was 80 cm, which was 4 cm shorter than that of ‘Olbori’ (84 cm), and the spike length was 4.9 cm, which was longer than that of ‘Olbori’ (4.3 cm). The number of grains per spike was 56, higher than ‘Olbori’ (49 grains per spike), and the 1,000-grain weight was 35.2 g, heavier than that of ‘Olbori’ (34.6 g). In relation to disease resistance, ‘Ssagirang’ exhibited resistance to barley yellow mosaic virus (BaYMV), with a disease severity score of 1, and showed similar winter hardiness to ‘Olbori.’ In terms of quality characteristics, protein and β-glucan contents were 10.2% and 4.3%, respectively, similar to those of ‘Olbori’. The potential diastatic power of ‘Ssagirang’ was 107 DP, comparable to that of ‘Olbori’ (99 DP). Polyphenol content of ‘Ssagirang’ was 178 mg/100g, higher than that of ‘Olbori’ (164 mg/100g). The mean grain yield of ‘Ssagirang’ was 557 kg/10a across all regions, which was 21% higher than that of ‘Olbori’ (462 kg/10a). The barley sprout yield of ‘Ssagirang’ was 157 g_dw/m², greater than that of ‘Olbori’ (133 g_dw/m²), and its policosanol content was 448 mg/100g, which was significantly higher than that of ‘Olbori’ (245 mg/100g). On account of its strong cold tolerance, high yield, and excellent processing suitability, it is anticipated that ‘Ssagirang’ will be employed as a raw material for long malt, barley tea, and barley sprouts (Registration No. 9728).

‘Dian’ was developed by crossing ‘Milyang85/Suwon335’, which has tolerance to lodging and high yield, and ‘Milyang122’, which has good brewing qualities, in 2003. The regional yield trials were conducted for ‘Dian’ as a breeding line ‘Iksan168’ in four different regions of Korea from 2012 to 2014. The heading and maturing dates of ‘Dian’ in paddy and upland fields were similar to ‘Hopum’. ‘Dian’ had a shorter culm length than ‘Hopum’ in paddy and upland fields, showing tolerance to lodging stress. The yield potential of ‘Dian’ was approximately 18% higher than that of ‘Hopum’ in the paddy fields, but there were no significant differences in the upland fields. ‘Dian’ had rym1 and rym5 genes and showed resistance to barley yellow mosaic virus (BaYMV), but was susceptible to powdery mildew. It also had good quality for brewing and was similar to ‘Hopum’. ‘Dian’ had a higher assortment ratio (94%) than ‘Hopum’ (89%). Regarding grain quality, ‘Dian’ was similar to ‘Hopum’ in protein content, β-glucan content, and husk rate. Concerning malt quality, ‘Dian’ showed a 71.6% extraction rate, 3.6% soluble protein content, and 33.0% Kolbach index, which are similar to the values of ‘Hopum’. Other malt qualities of ‘Dian’ include 185 WK (Windisch-Kolbach) diastatic power and 81.4% friability, which were lower than those of ‘Hopum’. Therefore, ‘Dian’ with high yield, tolerance to lodging, and resistance to BaYMV is considered to be stable for cultivation (Registration No. 8241).

A malting barley variety, ‘Nurimaeg’, was developed with resistance to barley yellow mosaic virus (BaYMV), tolerance to lodging stress, and good brewing quality. ‘Nurimaeg’ was developed by crossing Milyang127 and Miharu gold in 2004. Regional yield trials were conducted for ‘Nurimaeg’ as a breeding line ‘Iksan175’ in four different regions from 2014-2016. It has a type I growth habit, and its average heading and maturity dates were April 12 and May 20, respectively-which were 1 day later than the maturity date of ‘Hopum’ variety. As ‘Nurimaeg’ has a shorter culm length (77 cm) than that of ‘Hopum’, it showed tolerance to lodging stress. This variety possesses the rym5 gene and is resistant to BaYMV. It showed a 42.9 g 1000-grain weight and 90% assortment ratio. The yield potential of ‘Nurimaeg’ was 408 kg/10a, which is approximately 18% higher than that of ‘Hopum’. Analysis of grain quality for malting showed that ‘Nurimaeg’ has high quality of low protein and β-glucan content. Malt quality analysis revealed that it has 72.8% extract, 4.2% soluble protein, 38.9% kolbach index, and 243 WK diastatic power, which all were similar to those of ‘Hopum’. ‘Nurimaeg’ would be suitable for cultivation in the areas of Korea that have a daily minimum temperature of -4℃ in the month of January (Registration No. 7960).

Barley breeding program of RDA (Rural Development Administration) has been develop to new hulled barley variety that has been used for malt and beer material. Through this program, we developed new two-rowed covered barley, Imaeg, with disease resistant, lodging tolerant and good malt quality for beer and Korean traditional drink ‘Sikhye’ in 2013. Imaeg showed resistant to Barley yellow mosaic virus (BaYMV), lodging tolerant and early maturing. The regional yield trials were conducted for Imaeg as a breeding line ‘Iksan166’ during three years at four different regions. And then it was registered to Plant protection right, No. 5681 in 2015 after field experiment by KSVS (Korea Seed & Variety Service). Imaeg has I of vernalization and shorter stem length as 77cm than 7cm to control variety Hopum. Yield potential of Imaeg about 4.8ton/ha that higher about 3% in paddy field condition than control, however, it has no significant difference. In quality examination for beer usage, Imaeg has higher 1,000 grain weight (45.6g) and higher assortment ratio (93.6%) than those of Hopum as 42.6g and 90.4% respectively. In malt quality, Imaeg showed higher soluble protein, Kolbach index and diastatic power than those of Hopum significantly. In addition, Imaeg has better ‘Sikhye’ malt quality significantly in lightness of grain (58.4 L value) and growth rate (216.8%) than those of Hopum as 54.3 (L value) and 177.5% respectively. Imaeg would be suitable for cultivation at the area above -4°C of daily minimum temperature in January in Korean peninsula.