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"Kyeong-Bo Lee"

New Cultivar Developed

식용 자색 고구마 품종 ‘단자미’
A Purple-Fleshed Sweetpotato Variety ‘Danjami’ for Table Use
Hyeong-Un Lee, Joon-Seol Lee, Mi-Nam Chung, Jung-Wook Yang, Sik-Sang Nam, Seon-Kyeong Han, Jae-Myung Kim, Seung-Hyun Ahn, Yeon-Sang Song, Eom-Ji Hwang, Gyeong-Dan Yu, San Goh, Jin-Young Moon, Kyu-Hwan Choi, Se-Gu Hwang, An-Soo Lee, Young-Sik Kang, Kyeong-Bo Lee
Korean. J. Breed. Sci. 2020;52(1):53-61.   Published online March 1, 2020
DOI: https://doi.org/10.9787/KJBS.2020.52.1.53

‘Danjami’ was developed in 2015 as a purple-fleshed sweetpotato variety with excellent palatability. It was derived from a cross between ‘Yeonjami’ with purple flesh and ‘Yeonhwangmi’ with good palatability. The storage roots of this variety are elliptical with purple skin, and light purple flesh. It is moderately resistant to fusarium wilt and resistant to root-knot nematode. The texture of the steamed storage root of ‘Danjami’ is slightly moist and more tender than that of ‘Sinjami’. Soluble solid content of steamed storage roots of ‘Danjami’ was 31.3 °Brix, which was 20.8% higher than that of ‘Sinjami’. The palatability of steamed storage roots of ‘Danjami’ was better than that of ‘Sinjami’. The anthocyanin content of storage roots of ‘Danjami’ was 55.1 mg/100g dry weight. Total polyphenol content and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity did not differ from that of ‘Sinjami’. The number of marketable storage roots per plant and the average weight of marketable storage root was 2.8 and 136 g under the normal and late-season culture in ‘Danjami’, respectively. The marketable storage root yield of ‘Danjami’ was 21.5 MT/ha under the normal and late-season culture, which was 78.8% of that of ‘Sinjami’. The yield of marketable storage root over 50 g of ‘Danjami’ was 15.3 MT/ha under the early-season culture, which was 28.8% lower than that under the normal and late-season culture. ‘Danjami’ was more suitable for the normal and late-season culture than for the early-season culture (Registration No. 6465).

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식용 고구마 품종 ‘호감미’
‘Hogammi’, a Sweetpotato Variety for Table Use
Hyeong-Un Lee, Joon-Seol Lee, Mi-Nam Chung, Jung-Wook Yang, Sik-Sang Nam, Seon-Kyeong Han, Jae-Myung Kim, Seung-Hyun Ahn, Yeon-Sang Song, Eom-Ji Hwang, Gyeong-Dan Yu, San Goh, Jin-Young Moon, Kyu-Hwan Choi, Se-Gu Hwang, An-Soo Lee, Young-Sik Kang, Kyeong-Bo Lee
Korean. J. Breed. Sci. 2019;51(4):529-536.   Published online December 1, 2019
DOI: https://doi.org/10.9787/KJBS.2019.51.4.529

‘Hogammi’ was developed as a sweetpotato variety with β-carotene content and excellent palatability in 2015. It was derived by crossing ‘AB95007-2’, which has good shape and storage root yield, and ‘Annoimo’, which has light orange flesh and good palatability. ‘Hogammi’ had storage roots with long elliptical shape, red skin, and light orange flesh. The texture of the steamed storage root of ‘Hogammi’ was intermediate or slightly moist, and it was more tender than that of ‘Yulmi’. The soluble solid content of the steamed storage roots of ‘Hogammi’ was 29.7 °Brix, which was 10.8% higher than that of ‘Yulmi’. The palatability of the steamed storage roots of ‘Hogammi’ was better than that of ‘Yulmi’. The β-carotene content of the storage roots of ‘Hogammi’ was 9.8 mg/100 g dry weight. ‘Hogammi’ was moderately resistant to Fusarium wilt and root-knot nematode. In ‘Hogammi’, the number of marketable storage roots per plant and the average weight of marketable storage root were 3.4 and 133 g under culture in the normal season, respectively. The marketable storage root yield of ‘Hogammi’ was 24.1 MT/ha under culture in the normal season, which was 4% higher than that of ‘Yulmi’. The yield of marketable storage root over 50 g of ‘Hogammi’ was 14.5 MT/ha under culture in the early season, which was 39.8% lower than that under culture in the normal season. ‘Hogammi’ was more suitable for culture in the normal season (Registration No. 6466).

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흰색 꽃이 피는 내병, 조기 개화종 유채 ‘중모 7003’
A New Rapeseed Variety ‘Jungmo 7003’ with White Flower, Early Flowering and Disease Resistance
Kwang-Soo Kim, Young-Seok Jang, Yong-Hwa Lee, San Ko, Kyu-Hwan Choi, Jung-Ho Shin, Kyeong-Bo Lee
Korean. J. Breed. Sci. 2016;48(3):339-343.   Published online September 30, 2016
DOI: https://doi.org/10.9787/KJBS.2016.48.3.339

A new rapeseed (Brassica napus L.) variety ‘Jungmo 7003’ is with early flowering and disease tolerance, which has white petals. ‘Jungmo 7003’ was developed from the cross between ‘Tower’ as female parent and ‘AB130’ as male parent in 1983. The selection for advanced lines with white flower had been done by the pedigree method. A promising line, ‘83025-B-1-1-2’, was selected and designated as the name of ‘Mokpo113’. It had good results from regional adaptation yield trials at four locations for two years from 2013 to 2014 and was released as the name of ‘Jungmo 7003’. ‘Jungmo 7003’ has light-green and middle parted leaf, light-green stem and black seed coat. Since, the prominent very special trait of ‘Jungmo 7003’is white flower, it can be used for landscaping purposes created farm-art images. The flowering date of ‘Jungmo 7003’ was 16th April and ripening date was 5th June. The yield of ‘Jungmo 7003’ was 207 kg/10a, which was 6% lower than ‘Hanlayuchae' in regional adaptation trials. ‘Jungmo 7003’ showed high resistance to screrotium. The oil content of ‘Jungmo 7003’ was 43.8%. In fatty acid composition of ‘Jungmo 7003’, oleic acid content is 68.4%, which is 1.2% higher than ‘Hanlayuchae'. ‘Jungmo 7003’ will be adaptable to southwestern area including Jeonllanam-do, Jeollabuk-do and Gyeongsangnam-do and Jeju island of Korea.

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조숙, 내병 및 내도복성 유채 1대잡종 ‘해안’
A F1 Hybrid of Rapeseed (Brassica napus L.), ‘Haean’ with Early Maturing, Disease Resistant and Lodging Tolerance
Kwang-Soo Kim, Young-Seok Jang, Yong-Hwa Lee, Kyu-Hwan Choi, Dal-Soon Kang, Seong-Taek Kim, In-Hu Choi, Kyeong-Bo Lee
Korean. J. Breed. Sci. 2015;47(4):403-408.   Published online December 31, 2015
DOI: https://doi.org/10.9787/KJBS.2015.47.4.403

A new rapeseed (Brassica napus L.) F1 hybrid ‘Haean’ was crossed between ‘Mokpo-CGMS’, male sterile line and ‘8516-B-5-6-1-2’, restore line for the adaptation of paddy land culture with early maturing, disease resistant and lodging tolerance in 2008. Yield trials were conducted from 2009 to 2010 in Muan, and regional adaptation trials were examined from 2011 to 2013 in four regions. ‘Haean’ has dark green, cleft and parted leaf, light yellowish flower, and black seed color. The maturation date of ‘Haean’ is 4th June, 4 days earlier than ‘Sunmang’. In the regional adaptation trials, average yield of ‘Haean’ was 272 kg/10a, which was 6% higher than ‘Sunmang’. Seed oil content of ‘Haean’ was 44.2%. In fatty acid composition, oleic acid content is 69.8%, which is 2.5% higher than ‘Sunmang’. Total glucosinolates content was 1.84 mg/g. ‘Haean’ has characteristics of disease resistant and lodging tolerance, this variety can be cultured at paddy lands in southwestern area including Jeonnam, Jeonbuk and Kyongnam provinces and Cheju island of Korea.

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개화 균일성이 좋은 내도복성 유채 중간모본 ‘중모 7002’
A Rapeseed Intermediate Parent ‘Jungmo 7002’ with Flowering Uniformity and Lodging Tolerance
Kwang-Soo Kim, Young-Seok Jang, Yong-Hwa Lee, Tae-Cheol Seo, Kyu-Hwan Choi, Dal-Soon Kang, Seong-Taek Kim, Kyeong-Bo Lee
Korean. J. Breed. Sci. 2015;47(3):276-280.   Published online September 30, 2015
DOI: https://doi.org/10.9787/KJBS.2015.47.3.276

‘Jungmo 7002’ is a intermediate parent of rapeseed (Brassica napus L.) with flowering uniformity and lodging tolerance for the scenery and oil production. ‘Jungmo 7002’ was developed from the cross between ‘RS10//Erra/Tower’ as female parent and ‘RS10’ as male parent in 1984. A promising line, ‘84013-B-6-3-3-6’, was selected and designated as the name of ‘Mokpo116’. It was prominent and had good result from regional adaptation yield trials (RYT) for three years from 2011 to 2013 and was released as the name of ‘Jungmo 7002’. ‘Jungmo 7002’ has middle parted and dark-green leaf, Brownish-green stem, yellowish flower and black seed coat. The flowering date of ‘Jungmo 7002’ was 16th April and ripening date was 9th June. The yield of ‘Jungmo 7002’ was 247 kg/10a, which was 19% higher than ‘Hanlayuchae’ in regional adaptation trials. This intermediate parent showed high resistance to lodging tolerance. The oil content of ‘Jungmo 7002’ was 44.3%. In fatty acid composition of ‘Jungmo 7002’ , oleic acid content is 70.8%, which is 3.3% higher than ‘Hanlayuchae’. And ‘Jungmo 7002’ has no erucic acid. ‘Jungmo 7002’ will be adaptable to southwestern area including Jeonllanam-do, Jeollabuk-do and Gyeongsangnam-do and Jeju island of Korea.

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