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내도복 다수성 사료용 옥수수 단교잡 신품종 ‘다청옥’

손범영*, 백성범, 김정태, 이진석, 배환희

Single Cross Maize Hybrid for Silage with Lodging Tolerance and High Yield, ‘Dacheongok’

Korean Journal of Breeding Science 2018;50(2):145-149.
Published online: June 1, 2018

국립식량과학원

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

(E-mail: sonby@korea.kr, Tel: +82-31-695-4039, Fax: +82-31-695-4029)
• Received: January 31, 2018   • Accepted: March 12, 2018

Copyright: © 2018 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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    Journal of the Korean Society of International Agriculture.2023; 35(4): 366.     CrossRef
  • Changes and Prospects in the Development of Corn Varieties in Korea
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    Korean Journal of Breeding Science.2020; 52(S): 93.     CrossRef
  • Effects of Seeding Dates on the Growth Characteristics, Dry Matter Yield and Feed Value of Teosinte New Variety, “Geukdong 6”〔Zea mays L. subsp. mexicana (Schrad.) H. H. Iltis〕
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  • Tropical Single Cross Corn Hybrid ‘KM1’ with Early Maturity, Lodging Tolerance, and High Yield
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Single Cross Maize Hybrid for Silage with Lodging Tolerance and High Yield, ‘Dacheongok’
Korean. J. Breed. Sci.. 2018;50(2):145-149.   Published online June 1, 2018
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Single Cross Maize Hybrid for Silage with Lodging Tolerance and High Yield, ‘Dacheongok’
Korean. J. Breed. Sci.. 2018;50(2):145-149.   Published online June 1, 2018
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Single Cross Maize Hybrid for Silage with Lodging Tolerance and High Yield, ‘Dacheongok’
Image Image
Fig. 1 Breeding procedure of ‘Dacheongok’
Fig. 2 Picture of plant type and ear appearance of Dacheongok
Single Cross Maize Hybrid for Silage with Lodging Tolerance and High Yield, ‘Dacheongok’

Color of silk, seed coat and type of grain of ‘Dacheongok’

Hybrid Color of silk Color of seed coat Type of grain
Dacheongok Purple Yellow Dent
Kwangpyeongok Light green Yellow Dent

Agronomic characteristics of ‘Dacheongok’

Hybrid Days to silking (days) Plant height (cm) Ratioz(%) Lodg-ingy(1~9) Stay-greenx(1~9) Ear per 100 plants (No.) Ear length (cm) 100 seeds weight (g)
Dacheongok 80a 267a 51a 1.5a 2.9a 95a 18.6a 29.8a
Kwangpyeongok 78a 280a 52a 1.8a 2.8a 94a 16.5a 28.4a

zRatio: Ear height ratio = ear height/plant height×100

yLodging,

xStay-green : (1:excellent, 9:poor)

Resistance to disease of ‘Dacheongok’

Hybrid Disease resistance Corn borer (0~9)

Southern leaf blight (0~9) Northern leaf blight (0~9)
Dacheongok MR (5.7a) R (1.0a) MR (6.7a)
Kwangpyeongok MR (5.0a) R(1.7a) MR (6.2a)

R: Resistance, MR: Moderate Resistance

Color protein, NDF and ADF of leaves and stem of ‘Dacheongok’

Hybrid Crude protein (%) NDF (%) ADF (%)
Dacheongok 7.3a 64.2a 36.3a
Kwangpyeongok 6.9a 61.0a 35.1a
P3394 5.4b 65.0a 37.1a

NDF : Neutral Detergent Fiber, ADF : Acid Detergent Fiber

Dry matter yield of ‘Dacheongok’ in advanced yield trial at 2013 in Suwon, NICS

Hybrid Dry matter yield (ton/ha) Index (%)

2013
Dacheongok 15.59a 134
Kwangpyeongok 11.62b 100

Dry matter yield of ‘Dacheongok’ in regional yield trial from 2014 to 2016

Location Dacheongok (ton/ha) Kwangpyeongok (ton/ha)


2014 2015 2016 Mean 2014 2015 2016 Mean
Suwon 25.49 18.11 26.13 23.24 25.23 16.39 26.29 22.64
Cheonan 12.17 17.55 19.53 16.42 17.54 15.32 16.87 16.58
Hongcheon 29.39 28.65 24.27 27.44 20.84 24.63 21.47 22.31
Daegu 23.28 28.81 30.93 27.67 23.36 26.33 23.81 24.50

Mean 22.58 23.28 25.22 23.69a (110) 21.74 20.67 22.11 21.51a (100)

TDN yield of ‘Dacheongok’ in regional yield trial from 2014 to 2016

Location Dacheongok (ton/ha) Kwangpyeongok (ton/ha)


2014 2015 2016 Mean 2014 2015 2016 Mean
Suwon 17.13 12.27 17.99 15.80 17.56 11.29 18.26 15.70
Cheonan 8.11 11.80 13.63 11.18 12.14 10.63 11.90 11.56
Hongcheon 19.91 18.10 17.26 18.42 14.49 16.10 15.95 15.51
Daegu 16.14 19.76 21.23 19.04 16.74 18.34 16.80 17.29

Mean 15.32 15.48 17.53 16.11a (107) 15.23 14.09 15.73 15.02a (100)

F1 Seed production trial of ‘Dacheongok’ at Yeongwol

Planting rate (♀:♂) Inbred Silking date Pollen dispersal period Ear length (cm) Fertile kernels (%) 100 seeds weight (g) F1 seed yield (ton/ha)
4 : 1 KS197 (♀) July 15 - 17.3 93 33.7 2.46
KS202 (♂) - July 14~19 - - - -
Table 1 Color of silk, seed coat and type of grain of ‘Dacheongok’
Table 2 Agronomic characteristics of ‘Dacheongok’

Ratio: Ear height ratio = ear height/plant height×100

Lodging,

Stay-green : (1:excellent, 9:poor)

Table 3 Resistance to disease of ‘Dacheongok’

R: Resistance, MR: Moderate Resistance

Table 4 Color protein, NDF and ADF of leaves and stem of ‘Dacheongok’

NDF : Neutral Detergent Fiber, ADF : Acid Detergent Fiber

Table 5 Dry matter yield of ‘Dacheongok’ in advanced yield trial at 2013 in Suwon, NICS
Table 6 Dry matter yield of ‘Dacheongok’ in regional yield trial from 2014 to 2016
Table 7 TDN yield of ‘Dacheongok’ in regional yield trial from 2014 to 2016
Table 8 F1 Seed production trial of ‘Dacheongok’ at Yeongwol