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중생 복합내병성 고품질 벼 ‘청운’

A Medium Maturity, High Quality and Multiple Disease Resistant Rice ‘Cheongun’

Korean Journal of Breeding Science 2015;47(2):166-172.
Published online: May 31, 2015

1 농촌진흥청 국립식량과학원

1 National Institute of Crop Science, RDA, Wanju 565-851, Republic of Korea

2 농촌진흥청 국립농업과학원

2 National Academy of Agricultural Science, RDA, Wanju 565-851, Republic of Korea

3 전라북도농업기술원

3 Jeolabuk-do Agricultural Research & Extension Services, Iksan 570-704, Republic of Korea

*Corresponding author (yjwon@korea.kr, Tel: +82-31-695-4030, Fax: +82-31-695-4029)
• Received: April 8, 2015   • Revised: May 10, 2015   • Accepted: May 11, 2015

© 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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  • Effect of Resistance Genes on the Occurrence of Rice Undesirable Characters in a Wide Cross
    Chang-Min Lee, Hyun-Su Park, Man-Kee Baek, Jung-Pil Suh, O-Young Jeong, Song-Joong Yun, Suk-Man Kim
    Korean Journal of Breeding Science.2021; 53(4): 392.     CrossRef

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A Medium Maturity, High Quality and Multiple Disease Resistant Rice ‘Cheongun’
Korean. J. Breed. Sci.. 2015;47(2):166-172.   Published online June 30, 2015
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A Medium Maturity, High Quality and Multiple Disease Resistant Rice ‘Cheongun’
Korean. J. Breed. Sci.. 2015;47(2):166-172.   Published online June 30, 2015
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A Medium Maturity, High Quality and Multiple Disease Resistant Rice ‘Cheongun’
Image Image
Fig. 1. Pedigree diagram of ‘Cheongun’.
Fig. 2. Genealogical diagram of ‘Cheongun’.
A Medium Maturity, High Quality and Multiple Disease Resistant Rice ‘Cheongun’

Major agronomic traits and yield components.

Variety Heading date Culm lengthz (cm) Panicle length (cm) No. of panicles /hill No. of spikelet /panicle Ratio of ripened grain (%) 1000-grain weight of brown rice (g)

Cheongun Aug.13 87ns 21 13ns 114* 76.0* 22.2ns
Hwaseong Aug.08 84 21 14 93 81.8 22.4

*Significant at 5% level

nsNo significance

zLength from soil surface to panicle neck

Reaction to blast disease.

Variety Reaction to blast nursery test (0-9)z Area ratio to leaf lesion of Piricularia grisea of sequential plantings (%) Reaction to neck blastx (%)

No. of tested sitesy



R (0-3) M (4-6) S (7-9) Mean 1 2 3 4 5 6 7 Persisten ce (0-7) No. of susceptible race Icheon Jecheon

Cheongun 11 3 0 2.6* 55.0 45.0 15.0 5.0 5.0. 0.5 0.5 7 9 0.1 2.1
Hwaseong 0 12 2 5.8 58.0 58.0 48.0 50.0 50.0 38.0 32.0 7 18 4.9 8.7

*Significant at 5% level

zN fertilizer of blast nursery test: 240 kg/ha

yR: Resistant, M: Moderately resistant, S: Susceptible

xN fertilizer of neck blast test: 220 kg/ha

Reaction to bacterial blight, virus disease and insect pests.

Variety Bacterial blightz Virus diseases Resistance to insectsy



K1 K2 K3 K3a Stripe (%) Dwarf BSD BPH SBPH

Cheongun R R R S R(0.0) S S S S
Hwaseong S S S S R(14.1) S S S S

zR: Resistant, S: Susceptible

yBPH: Browon planthopper, SBPH: Small brown planthopper

Response to physiological and abiotic stresses.

Variety Premature heading (%) Occurrence of wilting Leaf senescence at maturing Cold tolerancez Viviparous Germinationw (%)

Discoloration (1-9)y Heading delay (day) Grain fertility (%) PAx

Cheongun 0.0 Strong Late 1 17 42ns 7 5.3*
Hwaseong 0.0 Strong Late 1 11 53 6 17.1

*significant at 5% level

nsNo significance

zCold tolerance was evaluated in Chuncheon cold-water (17℃) irrigated nursery

yEvaluation at maximum tillering stage (1: toterance; 9: susceptible)

xPhenotypic Acceptability

wGermination rate at 7 days after incubation

Major characteristics related to lodging.

Variety Culm lengthz (cm) Third internode length (cm) Top fresh weight (g) Breaking strength (g) Moment (g.cm) Lodging index Lodging in the field (0~9)

Cheongun 89* 14ns 16.4** 748* 1,791* 239* 5
Hwaseong 84 12 10.7 623 1,115 179 1

*Significant at 5% and 1% level, respectively

**Significant at 5% and 1% level, respectively

nsNo significance

zlength from upper part of root to panicle neck

Characteristics related to grain shape and grain quality.

Variety Brown rice White core/velly Alkali digestive value (1~7) Protein content (%) Amylose content (%) Palatability of cooked rice (-3~3)

Length (mm) Width (mm) L/W ratio

Cheongun 4.95ns 2.83ns 1.75** 0/0 6.6 6.7 19.5ns 0.29
Hwaseong 4.98 2.79 1.99* 2/0 6.5 6.9 20.6 0.08

**Significant at 1% level

nsNo significance

Characteristics related to milling quality.

Variety Milling recovery ratio (%) Head rice milling recovery ratio (%)

Brown/rough Milled/brown Milled/rough Head rice

Cheongun 81.7** 89.9 73.4* 89.3** 65.6*
Hwaseong 83.2 89.9 74.8 73.8 55.2

*Significant at 5% and 1% level, respectively

**Significant at 5% and 1% level, respectively

Yield potential of ‘Cheongun’ on local adaptability test.

Region No.of tested sites Average milled rice yield (MT/ha) Index (A/B)

Cheongun Hwaseong


’10 ’11 ’12 Ave. (A) ’10 ’11 ’12 Ave. (B)

Middle plain area 4 4.75 5.08 5.23 5.02ns 4.73 4.72 5.09 4.84 104
Mid-west coastal area 1 5.27 3.66 5.54 4.82ns 5.18 3.93 5.71 4.94 97
Average 5 4.86 4.79 5.29 4.98ns 4.82 4.56 5.21 4.86 102

nsNo significance

Table 1. Major agronomic traits and yield components.

Significant at 5% level

No significance

Length from soil surface to panicle neck

Table 2. Reaction to blast disease.

Significant at 5% level

N fertilizer of blast nursery test: 240 kg/ha

R: Resistant, M: Moderately resistant, S: Susceptible

N fertilizer of neck blast test: 220 kg/ha

Table 3. Reaction to bacterial blight, virus disease and insect pests.

R: Resistant, S: Susceptible

BPH: Browon planthopper, SBPH: Small brown planthopper

Table 4. Response to physiological and abiotic stresses.

significant at 5% level

No significance

Cold tolerance was evaluated in Chuncheon cold-water (17℃) irrigated nursery

Evaluation at maximum tillering stage (1: toterance; 9: susceptible)

Phenotypic Acceptability

Germination rate at 7 days after incubation

Table 5. Major characteristics related to lodging.

Significant at 5% and 1% level, respectively

Significant at 5% and 1% level, respectively

No significance

length from upper part of root to panicle neck

Table 6. Characteristics related to grain shape and grain quality.

Significant at 1% level

No significance

Table 7. Characteristics related to milling quality.

Significant at 5% and 1% level, respectively

Significant at 5% and 1% level, respectively

Table 8. Yield potential of ‘Cheongun’ on local adaptability test.

No significance