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"Dae-Young Kim"

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"Dae-Young Kim"

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촉성재배용 고경도 대과성 딸기 품종 ‘아리향’
‘Arihyang’, a Strawberry Variety with Highly Firm and Large-Sized Fruit for Forcing Culture
Dae-Young Kim, Seung Yu Kim, Yun-Chan Huh, Moo Kyung Yoon, Sun Yi Lee, Ji-Hye Moon, Dae Hyun Kim
Korean. J. Breed. Sci. 2018;50(4):497-503.   Published online December 1, 2018
DOI: https://doi.org/10.9787/KJBS.2018.50.4.497

A strawberry variety ‘Arihyang’ was derived as an artificial cross between ‘Tochiotome’ and ‘Seolhyang’ in 2014. The seedling and line selections were conducted from 2014 to 2015. Preliminary and advanced yield trials of ‘14-5-5,’ which was the final selected line, were conducted from 2015 to 2017. ‘Arihyang’ is suitable for forced cultivation and has strong plant vigor, uniformly large-sized fruit, and a high yield compared to those of the check variety, ‘Seolhyang’ and ‘Maehyang.’ Especially, vitamin C was at a significant level, which was approximately 15% higher than that of ‘Seolhyang.’ The average number of flowers per first flower cluster was 10.5, which could reduce the labor of thinning fruit. Its fruit has a conical shape, dark red color, and glossy skin. The fruit was of good quality but has recommendations for harvest at the fully ripened stage. ‘Arihyang’ has intermediate resistant to phytophthora crown rot, but is susceptible to powdery mildew, gray mold, anthracnose, and fusarium wilt. It is reguired to manage major diseases and pests using optimum cultivation techniques and chemical control.

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만추대 다수성 적치마 상추 ‘혜선’ 육성
Breeding of Late Bolting and High Yield Lettuce ‘Hyesun’
Suk-Woo Jang, Won-Byoung Chae, Su-Hyoung Park, Seoung-Ryong Cheong, Dae-Young Kim, Hye–Seon Shin, Ha-Young Jang, Jong-Nam Lee, Myeong-Hee Cheon, Jae-Ho Park, Un-Ji Kim, Hee-Dae Kim, Sun-Bo Ko
Korean. J. Breed. Sci. 2016;48(3):344-348.   Published online September 30, 2016
DOI: https://doi.org/10.9787/KJBS.2016.48.3.344

‘Hyesun’, a new cultivar of leaf lettuce (Lactuca sativa L.) with sharply wrinkled oval and red leaf, produced by a cross between 'Nongjeockchima’ (red leaf color) and ‘Jeockchima’ (high yield) has late bolting and high yield in the field. The cross and selection for advanced lines had been done by the pedigree method from 2002 to 2008. The ‘Hyesun’ has gray seed color and medium elliptic leaves. The yield and adaptability of the advanced lines were evaluated at several locations of Korea (Gangwon-do, Gyeonggi-do, Chungcheongbuk-do, Jeollabuk-do, Gyeongnam-do, and Jeju-do) for 3 years (from 2009 to 2012). The type of maturity of ‘Hyesun’ is early-medium. The leaf hardness of ‘Hyesun’ is a 1,237kg/cm2, which is not thicker than ‘Yeolpungeokchima’. The anthocyanin content of 'Hyesun' is a 88.32mg/100g, which is lower than that of ‘Yeolpungeockchima’. The BSL (Bitter Sesquiterpene Lactones, latucin + 8-deoxylactucin + lactucopicrin) content of ‘Hyesun’ is a 5.0ug/g of DW, which is lower than that of ‘Yeolpungeockchima’. Compared to ‘Yeolpungeockchima’, marketable yield of ‘Hyesun’ was higher by 7% (at 381g per plant) and the bolting time of ‘Hyesun’ was remarkably delayed under high temperature cultivation in the field. The shelf-life of ‘Hyesun’ was four weeks longer than ‘Yeolpungeockchima’ at 4°C. Furthermore, because ‘Hyesun’ is more crispy and sweeter than ‘Yeolpungeockchima’, ‘Hyesun’ has the better taste. So, we recommend that the new cultivar ‘Hyesun’ can be suitable for cultivation in both spring and fall season.

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