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열대성 조숙 내도복 다수성 단교잡종 옥수수 ‘케이엠1’

백성범1,*, 손범영1, 김정태1, 이진석1, 배환희1, 신성휴2, 송형석1, 김상곤3, 김병주1, 이상규4, 고영삼1, 김선림1

Tropical Single Cross Corn Hybrid ‘KM1’ with Early Maturity, Lodging Tolerance, and High Yield

Korean Journal of Breeding Science 2019;51(2):99-104.
Published online: June 1, 2019

농촌진흥청 국립식량과학원

농촌진흥청

재)경남한방항노화연구원

농업회사법인 아시아종묘(주)

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

Rural Development Administration, Jeonju, 54875, Republic of Korea

Gyeongnam Oriental Anti-aging institute, Sacheon, 52215, Republic of Korea

Asia-Seed Company, Limited, Seoul, 05828, Republic of Korea

*(E-mail: sbbaek@korea.kr, Tel: +82-31-695-4038, Fax: +82-31-695-4029)
• Received: March 15, 2019   • Revised: April 9, 2019   • Accepted: May 15, 2019

Copyright: © 2019 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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Citations

Citations to this article as recorded by  Crossref logo
  • ‘KM7’: A High-yield Hybrid Corn for Export to Tropical Regions
    Hwan-Hee Bae, Young-Sam Go, Jun Young Ha, Jae-Han Son, Tae-Wook Jung, Jung-Tae Kim, Jin-Seok Lee, Gibum Yi, Yoo-Chan Choi, Hi-Che Chung, Seong-Hyu Shin, Ki-Young Kim
    Korean Journal of Breeding Science.2025; 57(4): 475.     CrossRef
  • ‘KM3’: A Tropical Early-Maturing and High Grain Yield Single Cross Corn Hybrid
    Hwan-Hee Bae, Jun Young Ha, Young-Sam Go, Jae-Han Son, Gibum Yi, Yoo-Chan Choi, Hi-Che Chung, Seong-Hyu Shin, Ki-Young Kim, Tae-Wook Jung
    Korean Journal of Breeding Science.2024; 56(2): 139.     CrossRef
  • ‘KM5’: A High Grain Yield Hybrid Corn for Export to Tropical Regions
    Hwan-Hee Bae, Jun Young Ha, Young-Sam Go, Jae-Han Son, Gibum Yi, Yoo-Chan Choi, Hi-Che Chung, Seong-Hyu Shin, Ki-Young Kim, Tae-Wook Jung
    Korean Journal of Breeding Science.2024; 56(2): 131.     CrossRef

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Tropical Single Cross Corn Hybrid ‘KM1’ with Early Maturity, Lodging Tolerance, and High Yield
Korean. J. Breed. Sci.. 2019;51(2):99-104.   Published online June 1, 2019
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Tropical Single Cross Corn Hybrid ‘KM1’ with Early Maturity, Lodging Tolerance, and High Yield
Korean. J. Breed. Sci.. 2019;51(2):99-104.   Published online June 1, 2019
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Tropical Single Cross Corn Hybrid ‘KM1’ with Early Maturity, Lodging Tolerance, and High Yield
Image Image Image
Fig. 1 Breeding procedure of ‘KM1’.
Fig. 2 Plant type and ear appearance of ‘KM1’(left: plants, right: ears).
Fig. 3 Comparison of grain yields between ‘KM1’ and leading cultivars of different countries in country adaptability trials (2016, Vietnam, Cambodia and Indonesia). Values followed by the same letters within each country are not significantly different at p≤0.05.
Tropical Single Cross Corn Hybrid ‘KM1’ with Early Maturity, Lodging Tolerance, and High Yield

Inherent characteristics of ‘KM1’ (2016, Vietnam).

Hybrid Color of silk Color of tassel Color of seed coat Type of grain
KM1 Purple Light purple White-yellow Dent-like
LVN10 Dark purple Purple Yellow Flint-like

Agronomic characteristics of ‘KM1’ (2015~2016, Vietnam).

Hybrid Days to silking (days) Culm length (cm) Ear height ratio (%) Ear characteristics 100-kernel Weight (g)

Length (cm) Width (cm) Kernel set ratio (%)
KM1 73b 177a 36b 18.4a 5.0a 97a 33.1b
LVN10 78a 170a 49a 18.1a 4.5b 95a 36.8a

Values followed by the same letters within the same characteristic are not significantly different at p≤0.05.

Resistance to disease and lodging tolerance of ‘KM1’ in country adaptability trials (2016, Vietnam, Cambodia and Indonesia).

Hybrid Disease resistance (0~9)z Lodgingz,y
tolerance (1~9)

Cambodia Indonesia


Southern leaf blight Downy mildew Downy mildew Rust
KM1 3 1 3 7 1
LVN10 1 1 3 5 1
CP888 1 1 3 7 1
P21 - - 3 5 1

zResistance to disease (0: resistant, 9: susceptible), lodging tolerance (1: strong, 9: weak)

yLodging tolerance data from Vietnam, Cambodia and Indonesia

Grain yields of ‘KM1’ in yield trials (2015~2016, Vietnam).

Hybrid Grain yields (kg/10a) Index

2015 2016 Mean
KM1 872 887 879a 122
LVN10 728 716 722a 100

Values followed by the same letters within mean are not significantly different at p≤0.05

Grain yields of ‘KM1’ in country adaptability trials (2016, Vietnam, Cambodia and Indonesia).

Location KM1 LVN10


Grain yields (kg/10a) Index Grain yields (kg/10a) Index
Vietnam 887a 124 716a 100
Cambodia 914a 116 791a 100
Indonesia 653a 99 662a 100

Mean 818a 113 723a 100

Values followed by the same letters within the same row are not significantly different at p≤0.05.

Table 1 Inherent characteristics of ‘KM1’ (2016, Vietnam).
Table 2 Agronomic characteristics of ‘KM1’ (2015~2016, Vietnam).

Values followed by the same letters within the same characteristic are not significantly different at p≤0.05.

Table 3 Resistance to disease and lodging tolerance of ‘KM1’ in country adaptability trials (2016, Vietnam, Cambodia and Indonesia).

Resistance to disease (0: resistant, 9: susceptible), lodging tolerance (1: strong, 9: weak)

Lodging tolerance data from Vietnam, Cambodia and Indonesia

Table 4 Grain yields of ‘KM1’ in yield trials (2015~2016, Vietnam).

Values followed by the same letters within mean are not significantly different at p≤0.05

Table 5 Grain yields of ‘KM1’ in country adaptability trials (2016, Vietnam, Cambodia and Indonesia).

Values followed by the same letters within the same row are not significantly different at p≤0.05.