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New Cultivar Developed

내염성 콩 품종 ‘세화’

김우진1, 김기환1,2, 임하늘1, 이덕문1, 박지영1, 이윤석3, 조현1,2, 송종태1,2, 이정동1,2,3

Soybean Cultivar ‘Sehwa’ with Salt Tolerance

Ujin Kim1, Kihwan Kim1,2, Haneul Lim1, Deok Moon Lee1, Jiyoung Park1, Yun Seok Lee3, Hyun Jo1,2, Jong Tae Song1,2, Jeong-Dong Lee1,2,3
Korean. J. Breed. Sci. 2026;58(3):311-320.
Published online: September 1, 2026

1경북대학교 응용생명과학과
2밭농업기계개발연구센터
3경북대학교 농생명융합공학과

1Department of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
2Upland-Field Machinery Research Center, Kyungpook National University, Daegu, 41566, Republic of Korea
3Department of Integrative Biology, Kyungpook National University, Daegu, 41566, Republic of Korea
Corresponding author:  Jeong-Dong Lee, Tel: +82-53-950-5709
Email: jdlee@knu.ac.kr
• Received: June 22, 2026   • Revised: August 6, 2026   • Accepted: August 7, 2026
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간척농지 재배에 적합한 내염성 콩 품종 ‘세화’를 육성하고, 그 주요 농업적 형질을 조사하고 내염성 관련 형질을 평가하였다. ‘세화’는 Hutcheson × PI483463 조합에서 유래한 F1 개체와 국내 품종 ‘우람‘을 2012년 인공교배하여 육성되었다. 이후 계통육종법에 따라 세대를 진전시켰으며, 간척지 포장 검정 및 생산력 검정을 거쳐 내염성이 우수하고 형질이 고정된 최종 계통을 선발하였다. ‘세화’는 유한신육형의 직립형 초형으로 꽃색은 흰색, 모용색은 황갈색, 종피색은 황색이며 배꼽색은 진한 갈색을 나타낸다. 2020년 생산력 검정 결과, 개화기는 8월 3일로 대조품종인 ‘풍산나물’과 동일하였다. 평균 초장은 69.0 cm로 ‘풍산나물’(61.0 cm)에 비해 유의하게 컸으며, 마디 수(15.7개)와 개체당 협수(72.3개)는 유사한 수준을 나타냈다. 수량은 2.3 t/ha로, ‘풍산나물’(2.8 t/ha)과 유의한 차이가 없었다. 내염성 검정 결과, 100 mM NaCl 처리 시 ‘세화’의 엽 피해 지수(LSS)는 1.3으로 강한 염 저항성을 나타낸 반면, 염 민감성 품종인 ‘Hutcheson’은 심한 괴사 현상(LSS 3.7)을 보였다. ‘세화’는 100 mM NaCl 처리 조건에서 Na⁺ 함량이 대조구 대비 598% 증가하여, ‘Hutcheson’ (1,503%)에 비해 낮은 이온 축적률을 보였다. 또한 Na⁺/K⁺ 비율의 증가율 역시 529%로 나타나 ‘Hutcheson’ (1,365%)보다 현저히 낮아 ‘세화’가 상대적으로 Na⁺ 이온 흡수를 효과적으로 제어함을 확인하였다. 내염성 품종 ‘세화’는 향후 간척지 농지의 콩 재배 확대와 내염성 신품종 육성의 재료로 기여할 것으로 기대된다.

The soybean [Glycine max (L.) Merr.] cultivar ‘Sehwa’ (Grant No. 10017) was developed at Kyungpook National University. It was derived from a cross between ‘Uram’ and an F1 plant from a cross between the salt-sensitive soybean ‘Hutcheson’ (G. max) and the salt-tolerant wild soybean ‘PI483463’ (G. soja). In salt tolerance bio-assays, ‘Sehwa’ demonstrated high tolerance, with a low leaf scorch score (LSS) of 1.3 under 100 mM NaCl treatment. Contrastingly, ‘Hutcheson’ exhibited severe chlorosis and necrosis (LSS 3.7). Under salt stress, ‘Sehwa’ accumulated markedly fewer toxic ions than did Hutcheson. Compared with that in the control, the Na⁺ content increased by 598% in ‘Sehwa’, which was significantly lower than that in ‘Hutcheson’ (1,503%). Notably, in ‘Sehwa’, the Na⁺/K⁺ ratio increased by 529%, whereas ‘Hutcheson’ revealed a 1,365% increase. In the 2020 yield trial, ‘Sehwa’ exhibited an erect growth habit with an average plant height of 69.0 cm, which was considerably taller than the check cultivar ‘Pungsannamul’ (61.0 cm). Despite being small-seeded cultivar (100-seed weight: 10.0 g) compared with ‘Pungsannamul’ (13.5 g), it shows a reasonable yield potential of 2.3 t/ha, comparable to the 2.8 t/ha of the ‘Pungsannamul’. Therefore, ‘Sehwa’ is a promising soybean cultivar for reclaimed land owing to its salt tolerance and favorable agronomic traits.

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Soybean Cultivar ‘Sehwa’ with Salt Tolerance
Korean. J. Breed. Sci.. 2026;58(3):311-320.   Published online September 1, 2026
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Soybean Cultivar ‘Sehwa’ with Salt Tolerance
Korean. J. Breed. Sci.. 2026;58(3):311-320.   Published online September 1, 2026
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