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종실용 옥수수 단교잡 신품종 ‘신황옥’

Single Cross Maize Hybrid for Grain, ‘Sinhwangok’

Korean Journal of Breeding Science 2017;49(2):109-112.
Published online: May 31, 2017

National Institute of Crop Science, RDA, Suwon 16429, Korea

*Corresponding author : (sonby@korea.kr, +82-31-695-4039, +82-31-695-4029)
• Received: April 4, 2017   • Accepted: May 8, 2017

© Korean Society of Breeding Science. All rights reserved.

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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Korean. J. Breed. Sci.. 2017;49(2):109-112.   Published online June 1, 2017
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Single Cross Maize Hybrid for Grain, ‘Sinhwangok’
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Fig. 1 Breeding procedure of ‘Sinhwangok’.
Single Cross Maize Hybrid for Grain, ‘Sinhwangok’

Color of silk, seed coat and type of grain of ‘Sinhwangok’.

Hybrid Color of silk Color of seed coat Type of grain

Sinhwangok Purple Yellow Dent
Jangdaok Light green Yellow Dent

Agronomic characteristics of ‘Sinhwangok’.

Hybrid Days to silking (days) Plant height (cm) Ratio1) (%) Lodging (1~9) Ear per 100 plants (No.) Ear length (cm) 100 seeds weight (g)

Sinhwangok 74b 241a 51a 2.0a 96a 17b 34.1a
Jangdaok 78a 254a 49a 2.0a 91a 20a 30.9a

Ratio1): Ear height ratio = ear height/plant height×100

Resistance to disease of ‘Sinhwangok’.

Hybrid Disease resistance Corn borer (0~9)

Southern leaf blight (0~9) Northern leaf blight (0~9)

Sinhwangok MR (4.3a) R (0.7a) MR (7.9a)
Jangdaok MR (4.3a) R (0.7a) MR (7.5a)

R: Resistance, MR: Moderate Resistance

Grain yield of ‘Sinhwangok’ in preliminary and advanced yield trial at 2010 to 2011 in Suwon, NICS.

Hybrid Grain yield (ton/ha) Index (%)

2010 2011 Mean

Sinhwangok 11.36 7.46 9.41a 179
Jangdaok 8.75 1.75 5.25b 100

Grain yield of ‘Sinhwangok’ in regional yield trial from 2012 to 2015.

Location Sinhwangok (ton/ha) Jangdaok (ton/ha)


2012 2013 2014 2015 Mean 2012 2013 2014 2015 Mean

Suwon 7.55 4.35 9.86 7.85 7.40a 7.59 2.07 7.78 5.04 5.62a
Hongcheon 9.80 7.55 10.35 11.07 9.69a 9.09 4.73 8.75 10.61 8.30a
Daegu 7.54 10.85 10.87 9.21 9.62a 8.30 10.61 9.11 8.96 9.25a

Mean 8.30 7.58 10.36 9.38 8.90A 8.33 5.80 8.55 8.20 7.72A
(115) (100)

F1 Seed production trial of ‘Sinhwangok’ at Yeongwol.

Planting rate (♀:♂) Inbred Silking Silking date Pollen dispersal period Ear length (cm) Fertile kernels (%) F1 seed yield (ton/ha)

4 : 1 KS178 (♀) Aug. 5 - 12.9 93 2.3
KS145 (♂) - Aug. 2~8 - - -
Table 1 Color of silk, seed coat and type of grain of ‘Sinhwangok’.
Table 2 Agronomic characteristics of ‘Sinhwangok’.

Ratio1): Ear height ratio = ear height/plant height×100

Table 3 Resistance to disease of ‘Sinhwangok’.

R: Resistance, MR: Moderate Resistance

Table 4 Grain yield of ‘Sinhwangok’ in preliminary and advanced yield trial at 2010 to 2011 in Suwon, NICS.
Table 5 Grain yield of ‘Sinhwangok’ in regional yield trial from 2012 to 2015.
Table 6 F1 Seed production trial of ‘Sinhwangok’ at Yeongwol.