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New Cultivar Developed

다수성 진한 녹색자엽 검정콩 ‘경흑청’

이지윤1,*, 손창기1, 배정숙1, 조현태1, 최홍집1, 이정동2, 조현2

Black Soybean Cultivar ‘Gyeongheukcheong’ with Dark Green Cotyledon and High Yield Potential

Korean Journal of Breeding Science 2022;54(4):461-468.
Published online: December 1, 2022

1경상북도농업기술원

2경북대학교 응용생명과학과

1Gyeongsangbuk-do Agricultural Research and Extension Services, Daegu, 41404, Republic of Korea

2Department of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea

*Corresponding Author: (E-mail: dock0409@korea.kr, Tel: +82-54-373-5486, Fax: +82-54-373-5487)
• Received: October 26, 2022   • Revised: October 26, 2022   • Accepted: November 16, 2022

Copyright © 2022 by the Korean Society of Breeding Science

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Bacterial Pustule Disease in Soybean: Occurrence, Host–Pathogen Interactions and Management
    Su‐Yan Wang, Yong‐Hui Jiang, Zi‐Yao Huo, Shi‐Ling Zhang, Xin‐Chi Shi, Daniela D. Herrera‐Balandrano, Guo‐Liang Qian, Sang‐Wook Han, Wei Guo, Gong‐You Chen, Feng‐Quan Liu, Pedro Laborda
    Plant Pathology.2025; 74(7): 1941.     CrossRef

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Black Soybean Cultivar ‘Gyeongheukcheong’ with Dark Green Cotyledon and High Yield Potential
Korean. J. Breed. Sci.. 2022;54(4):461-468.   Published online December 1, 2022
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Black Soybean Cultivar ‘Gyeongheukcheong’ with Dark Green Cotyledon and High Yield Potential
Korean. J. Breed. Sci.. 2022;54(4):461-468.   Published online December 1, 2022
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Black Soybean Cultivar ‘Gyeongheukcheong’ with Dark Green Cotyledon and High Yield Potential
Image Image Image
Fig. 1 Genealogy of ‘Gyeongheukcheong’.
Fig. 2 Pedigree diagram of ‘Gyeongheukcheong’.
Fig. 3 Pictures of ‘Gyeongheukcheong’: Comparison of seed appearance and cotyledon color (A), pod size (B), and first pod height (C) between ‘Gyeongheukcheong’ and ‘Chungja 3’.
Black Soybean Cultivar ‘Gyeongheukcheong’ with Dark Green Cotyledon and High Yield Potential

Morphological characteristics of ‘Gyeongheukcheong’.

Cultivar Leaflet shape Flower color Pubescence color Pod color Seed coat color Hilum color Cotyledon color Seed shape
Gyeongheukcheong Pointed ovate Purple Grey Light brown Black Black Deep green Spherical flattened
Chungja 3 Pointed ovate Purple Brown Brown Black Black Light green Spherical flattened

Quantitative characteristic of ‘Gyeongheukcheong’ in seven locationsz over three years (2017-2019).

Cultivar Flowering (Month, Day) Maturity (Month. Day) Plant height (cm) No. of nodes No. of branches First pod height (cm) 100-seed weight (g)
Gyeongheukcheong 8.2 10.21 82.8ay 16.5a 3.3b 16.6a 36.1a
Chungja 3 8.1 10.21 68.0b 14.8b 3.6a 14.0b 36.2a

Resistance to diseases, lodging and pod shattering of ‘Gyeongheukcheong’ in Dalsung over three years (2017-2019).

Cultivar Bacterial pustule Soybean mosaic virus Root rotv (%) Lodging at field Shatterings
Regionalz test (0-9) Fieldy test (0-9) Inoculationx (0-9) Regionalz test (0-9) Fieldy test (0-9) Inoculationw (G6H) Regionalu test (1-9) Normalt culture(x1) (1-9) Denset culture(x2) (1-9) Fieldt test (1-9) 24 h (%) 48 h (%) 72 h (%)
Gyeongheukcheong 1 0 2 0 0.3 - / - 0 2 2 4 5 89 100 100
Chungja 3 1 0 3 0 4 - / M 0 2 2 3 5 98 99 99

Seed composition characteristics of ‘Gyeongheukcheong’ over three years (2017-2019).

Cultivar Crude protein (%) Crude fat (%) Anthocyaninz (μg/g) Fatty acid (%)
Palmitic acid (C16:0) Stearic acid (C18:0) Oleic acid (C18:1) Linoleic acid (C18:2) α-Linolenic acid (C18:3) Saturated fatty acid Unsaturated fatty acid
Gyeongheukcheong 41.3ay 17.2a 7,625b 11.7a 3.6a 22.1a 53.2b 9.2a 15.4a 84.6b
Chungja 3 41.7a 16.7a 21,562a 9.8b 3.2a 19.7b 56.8a 10.3a 13.1b 86.9a

Functional compounds and color of cotyledon of ‘Gyeongheukcheong’ in 2017.

Cultivar Lutein (μg/g)z Chlorophyll (μg/g)y Color valuex
Chlorophyll a Chlorophyll b L* a* b*
Gyeongheukcheong 45.3aw 41.4a 6.6b 92.2 -15.5 39.3
Chungja 3 40.4b 14.7b 15.4a 91.7 -10.3 34.1

Preliminary and advanced yield trials of ‘Gyeongheukcheong’ in daegu over two years (2015-2016).

Cultivar PYT (’15)z AYT (’16)y
Yield (kg/10a) Index (%)x Yield (kg/10a) Index (%)x
Gyeongheukcheong 401 128 437aw 189
Chungja 3 314 100 231b 100

Regional yield trials of ‘Gyeongheukcheong’ in seven locations over three years (2017-2019).

Cropping system Location Gyeongheukcheong (kg/10a) Chungja 3 (kg/10a)
2017 2018 2019 Mean Index (%)z 2017 2018 2019 Mean
Single cropping Suwon 291 305 259 285 97 300 298 285 294
Yeoncheon 151 261 227 213 94 157 292 233 227
Chuncheon 221 261 281 254 104 232 230 274 245
Mean 221 276 256 251ay 98 229 273 264 256a
Double cropping Dalseong 453 275 244 324 134 332 198 195 242
Yesan 286 230 152 223 103 247 221 181 216
Naju 472 384 238 365 105 440 334 272 349
Daegu 422 330 299 350 140 306 218 227 250
Mean 371 305 233 315a 119 331 243 219 264b
Total means 307 292 243 288a 110 288 256 238 261b
Table 1 Morphological characteristics of ‘Gyeongheukcheong’.
Table 2 Quantitative characteristic of ‘Gyeongheukcheong’ in seven locationsz over three years (2017-2019).

ZSeven locations: Suwon, Yeoncheon, Chuncheon, Dalseong, Yesan, Naju, Daegu

ya, b: same letters were not significantly different between two cultivars ‘Gyeongheukcheong’ and ‘Chungja 3’ by duncan’s multiple range test at 0.05

Table 3 Resistance to diseases, lodging and pod shattering of ‘Gyeongheukcheong’ in Dalsung over three years (2017-2019).

zRegional test in seven locations (Suwon, Yeoncheon, Chuncheon, Dalseong, Yesan, Naju, Daegu), (0-9): (0) Tolerant ~ (9) Susceptible

yField test in Dalseong, (0-9): (0) Tolerant ~ (9) Susceptible

xInoculation of bacterial pustule in Dalseong: spray inoculation and wet treatment at second normal leaf period, (0-9): (0) Tolerant ~ (9) Susceptible

wInoculation of soybean mosaic virus: reaction of inoculated leaf/upper leaves, (-) No symptom, (L) Local reaction, (M) Mosaic

vRoot rot: the ratio of naturally infected plant in the field.

uRegional test in seven locations (Suwon, Yeoncheon, Chuncheon, Dalseong, Yesan, Naju, Daegu), (1-9): (1) Tolerant ~ (9) Susceptible

tNormal culture(x1) & Dense culture(x2) & Field test in Dalseong, (1-9): (1) Tolerant ~ (9) Susceptible

sShttering: the ratio of shattered pod by dry oven test at 40°C for 48 hr

Table 4 Seed composition characteristics of ‘Gyeongheukcheong’ over three years (2017-2019).

zAnthocyanin: in seed coats

ya, b: same letters were not significantly different between two cultivars ‘Gyeongheukcheong’ and ‘Chungja 3’ by least significant difference (LSD) at 0.05

Table 5 Functional compounds and color of cotyledon of ‘Gyeongheukcheong’ in 2017.

zLutein ~ (Chlorophyll: in cotyledon removed seed coats

xColor value (CIE-L*a*b* system): L* [Lightness (0~100)], a* [redness (-) Green ~ (+) Red], b* [yellowness (-) Blue ~ (+) Yellow]

wa, b: same letters were not significantly different between two cultivars ‘Gyeongheukcheong’ and ‘Chungja 3’ by least significant difference (LSD) at 0.05

Table 6 Preliminary and advanced yield trials of ‘Gyeongheukcheong’ in daegu over two years (2015-2016).

zPYT: preliminary yield trial, one replication

yAYT: advanced yield trial, randomized block design with three replications

xIndex: yield of ‘Gyeongheukcheong’ / yield of ‘Chungja 3’×100, respectively

wa, b: same letters were not significantly different betweem two cultivars ‘Gyeongheukcheong’ and ‘Chungja 3’ by least significant difference (LSD) at 0.05

Table 7 Regional yield trials of ‘Gyeongheukcheong’ in seven locations over three years (2017-2019).

zIndex: (yield of ‘Gyeongheukcheong’) ÷ (yield of Chungja 3)×100

ya, b: same letters were not significantly different between two cultivars ‘Gyeongheukcheong’ and ‘Chungja 3’ by duncan’s multiple range test at 0.05