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남부평야지 조기재배 적응 복합내병성 고품질 조생 벼 ‘조일’

남정권1, 박현수1,*, 김기영2, 김보경1, 조영찬1, 고재권1, 백만기1, 김정주1, 김우재1, 신운철1, 고종철1, 이점호1, 정종민1, 정지웅1, 강경호1

Multiple Disease Resistant Early Maturing Rice Cultivar ‘Joil’ with High Grain Quality Adaptable to Early Transplanting Cultivation in the Southern Plain Area

Korean Journal of Breeding Science 2018;50(3):280-288.
Published online: August 31, 2018

농촌진흥청 국립식량과학원

농촌진흥청 연구정책국

National Institute of Crop Science, RDA, Wanju 55365, Korea

Research Policy Bureau, RDA, Jeonju 54875, Korea

(E-mail: mayoe@korea.kr, Tel: +82-63-238-5214, Fax: +82-63-238-5205)
• Received: May 9, 2018   • Accepted: May 28, 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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Multiple Disease Resistant Early Maturing Rice Cultivar ‘Joil’ with High Grain Quality Adaptable to Early Transplanting Cultivation in the Southern Plain Area
Korean. J. Breed. Sci.. 2018;50(3):280-288.   Published online September 1, 2018
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Multiple Disease Resistant Early Maturing Rice Cultivar ‘Joil’ with High Grain Quality Adaptable to Early Transplanting Cultivation in the Southern Plain Area
Korean. J. Breed. Sci.. 2018;50(3):280-288.   Published online September 1, 2018
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Multiple Disease Resistant Early Maturing Rice Cultivar ‘Joil’ with High Grain Quality Adaptable to Early Transplanting Cultivation in the Southern Plain Area
Image Image Image
Fig. 1 Pedigree diagram of ‘Joil’.
Fig. 2 Genealogical diagram of ‘Joil’
Fig. 3 Resistance reaction to leaf blast (A) and against bacterial blight races K1 (HB1013 isolate), K2 (HB1014), K3 (HB1015), and K3a (HB1009) (B). The White bar indicates 10 cm. Hopyeong is the spreader cultivar for leaf blast in upland blast nursery.
Multiple Disease Resistant Early Maturing Rice Cultivar ‘Joil’ with High Grain Quality Adaptable to Early Transplanting Cultivation in the Southern Plain Area

Major agronomic traits and yield components.

Cultivar Heading date (mm.dd) Culm length (cm) Panicle length (cm) No. of panicles per hill No. of spikelets per panicle Ratio of ripened grain (%) 1,000-grain weight of brown rice (g)
Joil 7.16*z 72ns 20ns 15ns 93ns 86.1ns 22.1*
Jopyeong 7.14 74 21 15 91 85.5 21.6

zns and

*mean no significant and significant at p<0.05 by t-test, respectively

Response to physiological and abiotic stresses.

Cultivar Occurrence of wilting Leaf senescence at maturing Cold tolerancez Low tem. germinabilityy (%) Lodging Viviparous germinationx (%)


Seedling stage (1-9) Heading delay (day) Grain fertility (%) Phenotypic acceptability (1-9) Breaking strength (g) Index Field (1-9)
Joil Tolerance Late 4nsw 10ns 48ns 6ns 37* 786** 170** 3** 10.9*
Jopyeong Tolerance Late 5 11 51 5 57 680 184 5 25.2

zCold tolerance was evaluated at cold water (17°C) irrigation nursery in Chuncheon substation, NICS

yGermination rate for 15 days at 13°C

xGermination rate for 7 days at 25°C

wns and

*mean no significant and significant at p<0.05 by t-test, respectively

Resistance reaction to rice blast and bacterial blight.

Cultivar Reaction to leaf blast at blast nursery Reaction to bacterial blight


No. of tested sites (12) Race Field


R M S Mean K1 K2 K3 K3a
Joil 5 5 2 4.1 R R R S R
Jopyeong 7 5 0 3.0 R R R S R

zR: Resistant, M: moderately resistant, S: Susceptible

Reaction to virus disease and insect pests.

Cultivar Virus diseases (%) Resistance to insects


Stripe Dwarf Black streaked dwarf BPHz SBPH
Joil Ry (11.5) S (89.3) S (87.7) S S
Jopyeong R (27.2) S (97.8) S (81.3) S S

zBPH: brown planthopper, SBPH: small brown planthopper

yR: resistant, S: susceptible

Characteristics related to grain shape and grain quality.

Cultivar Brown rice Trans- lucency (1-9) White core/belly (0-9) Alkali digestive value (1-7) Protein content (%) Amylose content (%) Palatability of cooked rice (-3-+3)

Length (mm) Width (mm) L/W ratio
Joil 5.17*z 2.75ns 1.88** 1 0/1 6.0ns 6.4ns 18.3ns -0.01
Jopyeong 4.80 2.76 1.75 1 0/1 6.2 6.2 18.7 -0.03

zns,

*and

**mean no significant, significant at p<0.05 and 0.01 by t-test, respectively

Characteristics related to milling quality.

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

Brown/rough Milled/brown Milled/rough Head rice
Joil 81.7 90.7 74.0 79.5 58.8
Jopyeong 82.3 89.6 73.7 60.0 44.2

Yield summary of local adaptability test.

Culture season Region No. of tested sites Milled rice (MT/ha) Index

Joil (A) Standard cultivarz (B) A/B
Early planting Middle plain 1 5.37 5.25 102
Honam plain 2 5.34 5.30 101
Yeongnam plain 2 5.47 5.14 106

Mean 5 5.39nsy 5.22 103

Late planting Middle plain 1 4.85 4.47 109
Honam plain 1 5.72 5.19 110
Yeongnam plain 1 5.29 4.44 119

Mean 2 5.29* 4.70 113

zStandard cultivars for early planting and late planting are ‘Jopyeong’ and ‘Geumo’, respectively.

yns and

*mean no significant and significant at p<0.05 by t-test, respectively

Table 1 Major agronomic traits and yield components.

ns and

mean no significant and significant at p<0.05 by t-test, respectively

Table 2 Response to physiological and abiotic stresses.

Cold tolerance was evaluated at cold water (17°C) irrigation nursery in Chuncheon substation, NICS

Germination rate for 15 days at 13°C

Germination rate for 7 days at 25°C

ns and

mean no significant and significant at p<0.05 by t-test, respectively

Table 3 Resistance reaction to rice blast and bacterial blight.

zR: Resistant, M: moderately resistant, S: Susceptible

Table 4 Reaction to virus disease and insect pests.

BPH: brown planthopper, SBPH: small brown planthopper

R: resistant, S: susceptible

Table 5 Characteristics related to grain shape and grain quality.

ns,

and

mean no significant, significant at p<0.05 and 0.01 by t-test, respectively

Table 6 Characteristics related to milling quality.
Table 7 Yield summary of local adaptability test.

Standard cultivars for early planting and late planting are ‘Jopyeong’ and ‘Geumo’, respectively.

ns and

mean no significant and significant at p<0.05 by t-test, respectively