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단교잡 내도복 종실용 옥수수 신품종 ‘다평옥’

Single Cross Maize Hybrid with Lodging Tolerance for Grain, ‘Dapyeongok’

Korean Journal of Breeding Science 2015;47(1):87-91.
Published online: February 28, 2015

1국립식량과학원,

1National Institute of Crop Science, RDA, Suwon 441-857, Korea

2경북농업기술원,

2Gyeongbuk Agricultural Research and Extension Services, Daegu 702-010, Korea

3강원도농업기술원

3Hongcheon Maize Experiment Station, Gangwon Agricultural Research and Extension Services, Hongcheon 250-823, Korea

*Corresponding author (E-mail: sonby@korea.kr, Tel: +82-31-695-4039, Fax: +82-31-695-4029)
• Received: January 29, 2015   • Revised: February 6, 2015   • Accepted: February 6, 2015

© 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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Citations

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  • Single Cross Maize Hybrid ‘Hwangdaok’ for High Grain Yield
    Beom-Young Son, Seong-Bum Baek, Jung-Tae Kim, Jin-Seok Lee, Hwan-Hee Bae, Young-Sam Go, Sun-Lim Kim
    Korean Journal of Breeding Science.2019; 51(2): 105.     CrossRef
  • Comparative Gene Expression Analysis of Seed Development in Waxy and Dent Corn (Zea mays L.)
    Kyu Jin Sa, Ik-Young Choi, Dae Hyun Park, Ju Kyong Lee
    Plant Breeding and Biotechnology.2018; 6(4): 337.     CrossRef

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Single Cross Maize Hybrid with Lodging Tolerance for Grain, ‘Dapyeongok’
Korean. J. Breed. Sci.. 2015;47(1):87-91.   Published online March 31, 2015
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Korean. J. Breed. Sci.. 2015;47(1):87-91.   Published online March 31, 2015
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Single Cross Maize Hybrid with Lodging Tolerance for Grain, ‘Dapyeongok’
Image Image
Fig. 1. Breeding procedure of Dapyeongok.
Fig. 2. Picture of plant type and ear appearance of Dapyeongok
Single Cross Maize Hybrid with Lodging Tolerance for Grain, ‘Dapyeongok’

Color of silk, seed coat and type of grain for Dapyeongok.

Hybrid Color of silk Color of seed coat Type of grain

Dapyeongok Light purple Yellow Dent
Jangdaok Light green Yellow Dent

Agronomic characteristics of Dapyeongok.

Hybrid Days to silking (days) Plant height (cm) Ratioz (%) Lodging (1~9) Ear length (cm) 100 seeds weight (g)

Dapyeongok 81 258 50 1.0 18.9 28.6
Jangdaok 81 266 50 1.4 20.6 32.1

Ear height ratio = ear height/plant height×100

Resistance to disease of Dapyeongok.

Hybrid Disease resistance
Corn borer (0~9)
B. maydis (0~9) E. turcicum (0~9) BSDVz Ear rot

Dapyeongok R (1.7) R (3.7) MR MR MR (5.7)
Jangdaok MR (3.7) R (3.7) MR MR MR (6.3)

black streaked dwarf virus R: Resistance, MR: Moderate Resistance

Grain yield of Dapyeongok in preliminary and advanced yield trial from 2006 to 2007 in Suwon, NICS.

Hybrid Grain yield (ton/ha)
Index (%)
2006 2007 Mean

Dapyeongok 11.3 8.2 9.7 130
Jangdaok 7.0 8.0 7.5 100

Grain yield of Dapyeongok in regional yield trial from 2008 to 2010.

Location Dapyeongok (ton/ha)
Jangdaok (ton/ha)
2008 2009 2010 Mean Index 2008 2009 2010 Mean Index

Suwon 7.6 10.3 7.9 8.6 102 9.4 7.6 8.2 8.4 100
Hongcheon 10.1 7.3 9.1 8.8 105 9.6 6.7 9.0 8.4 100
Daegu 7.8 8.2 9.4 8.5 120 7.9 6.0 7.4 7.1 100

Mean 8.5 8.6 8.8 8.6 108 8.9 6.8 8.2 8.0 100

F1 Seed production trial of Dapyeongok at Yeongwol.

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

4 : 1 KS158 (♀) July 21 - 15.5 94 2.8
KS155 (♂) - July 23~27 - - -
Table 1. Color of silk, seed coat and type of grain for Dapyeongok.
Table 2. Agronomic characteristics of Dapyeongok.

Ear height ratio = ear height/plant height×100

Table 3. Resistance to disease of Dapyeongok.

black streaked dwarf virus R: Resistance, MR: Moderate Resistance

Table 4. Grain yield of Dapyeongok in preliminary and advanced yield trial from 2006 to 2007 in Suwon, NICS.
Table 5. Grain yield of Dapyeongok in regional yield trial from 2008 to 2010.
Table 6. F1 Seed production trial of Dapyeongok at Yeongwol.