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"covered barley"

New Cultivar Developeds
보리호위축병과 추위에 강한 겉보리 ‘한강’
Development of Covered Barley (Hordeum vulgare L.) Cultivar, ‘Hangang’ with Resistance to Barley Yellow Mosaic Virus and Tolerance to Cold
Chang-Hyun Lee, Yang-Kil Kim, Kyong-Ho Kim, On-Sook Hur, Tae-il Park, Jin-Cheon Park, Seul-Gi Park, Chon-Sik Kang, Chang-Hyun Choi, Jong-Ho Park, Young-Mi Yoon
Korean. J. Breed. Sci. 2023;55(2):156-162.
Published online June 1, 2023
DOI: https://doi.org/10.9787/KJBS.2023.55.2.156

A new covered barley cultivar ‘Hangang’ with resistance to barley yellow mosaic virus (BaYMV) and tolerance to cold was developed by crossing ‘Samkwangchal/Radiant’ at the National Institute of Crop Science, RDA in 2018. The regional yield trials were conducted for ‘Hangang’ as a breeding line ‘Jeonju498’ in five different regions from 2016 to 2018. The average heading date of ‘Hangang’ was April 22, which was one day earlier than that of ‘Olbori’. The maturing date of ‘Hangang’ was May 30, which was similar to that of ‘Olbori’. The culm length was 81 cm, which was shorter than that of ‘Olbori’, showing tolerance to lodging stress. ‘Hangang’ showed the spike length of 4.6 cm with 669 spikes per m2, 54 grains per spike, and a weight of 33.5 g for 1,000 grains. Compared with ‘Olbori’, ‘Hangang’ showed stronger withering in winter (winter hardiness) and resistance to BaYMV. Among quality characteristics, ‘Hangang’ showed similar levels as those of ‘Olbori’ with respect to protein, β-glucan and amylose (10.7%, 4.6%, and 18.8%, respectively). However, ‘Hangang’ showed higher polyphenol content (1.69 mg/g) than the check cultivar. The yield of ‘Hangang’ in the regional yield trial was 611 kg/10a in upland, 502 kg/10a in paddy field, and an overall average of 567 kg/10a, which was 15%, 16% and 16% higher than that of the check cultivar, respectively. Therefore, ‘Hangang’ will be suitable cultivar when sowed in cold regions (Registration No. 8773).

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춘파 적응성 내도복 다수성 겉보리 ‘호향’
Development of a Covered Barley (Hordeum vulgare L.) Cultivar, ‘Hohyang’, with High Yield and Spring Sowing Adaptability
Yang-Kil Kim, Young-Mi Yoon, Jong-Ho Park, Kyong-Ho Kim, Chon-Sik Kang, Tae-il Park, Sea-kwan Oh
Korean. J. Breed. Sci. 2020;52(4):448-453.   Published online December 1, 2020
DOI: https://doi.org/10.9787/KJBS.2020.52.4.448

A new six-rowed covered barley cultivar ‘Hohyang’ with spring sowing adaptability, lodging tolerance, and high yield was developed from the cross between ‘Saegangbori’ and ‘Durubori’ by the National Institute of Crop Science, RDA, Korea, in 2016. It has a compact spike and long awn, and its growth habit (vernalization requirement) was classified as group II. The averaged heading date was April 21, which was 1 day earlier than that of the control varietal, ‘Olbori’. The culm length was 78 cm, which was similar to that of ‘Olbori’; however, ‘Hohyang’ has a stronger lodging tolerance. Its spike length was 4.7 cm, 655 spikes/m2, 55 grains/spike, and 31.9 g for 1,000 grains. It also showed similar winter hardiness and a superior resistance to barley yellow mosaic virus (BaYMV) compared to that of ‘Olbori’. ‘Hohyang’ was well adapted to spring sowing conditions from March 6 to April 3. Regarding quality, ‘Hohyang’ had the same protein and β-glucan content as ‘Olbori’, but higher polyphenol content than the control cultivar. The yield of ‘Hohyang’ in the regional yield trial was 6.68 ton/ha in upland zones, and 5.06 ton/ha in paddy fields, which were 6% and 15% higher than those of the control cultivar, respectively. If there is rain during the fall planting season, ‘Hohyang’ is suitable for sowing and cultivation in spring (Registration No. 7374).

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