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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
남부평야지 조기재배 적응 복합내병성 고품질 조생 벼 ‘조일’
Korean J Breed Sci 2018;50(3):280-288
Published online September 1, 2018
© 2018 Korean Society of Breeding Science.

Jeong-Kwon Nam1, Hyun-Su Park1*, Ki-Young Kim2, Bo-Kyeong Kim1, Young-Chan Cho1, Jae-Kwon Ko1, Man-Kee Baek1, Jeong-Ju Kim1, Woo-Jae Kim1, Woon-Chul Shin1, Jong-Cheol Ko1, Jeom-Ho Lee1, Jong-Min Jeong1, Ji-Ung Jeung1, and Kyung-Ho Kang1
남정권1, 박현수1*, 김기영2, 김보경1, 조영찬1, 고재권1, 백만기1, 김정주1, 김우재1, 신운철1, 고종철1, 이점호1, 정종민1, 정지웅1, 강경호1

1National Institute of Crop Science, RDA, Wanju 55365, Korea
2Research Policy Bureau, RDA, Jeonju 54875, Korea
1농촌진흥청 국립식량과학원, 2농촌진흥청 연구정책국
Correspondence to: (E-mail:, Tel: +82-63-238-5214, Fax: +82-63-238-5205)
Received May 9, 2018; Accepted May 28, 2018.
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
‘Joil’ is a multiple disease resistant early maturing rice cultivar with high grain quality. ‘Joil’ was derived from a single cross between ‘Unbong37’ (cultivar name ‘Unmi’) and ‘HR23156-26-2-3-5’. ‘Unmi’ is an early maturing rice cultivar with high grain quality and resistance to rice blast and stripe virus. ‘HR23156-26-2-3-5’ is an early maturing elite rice line with lodging resistance and cold tolerance. ‘Joil’ was selected through the pedigree method, yield trials, and local adaptability tests. ‘Joil’ was an early maturing rice. The heading date of ‘Joil’ was July 16 in early transplanting cultivation, which was 2 days later than that of ‘Jopyeong’. ‘Joil’ was a lodging resistance rice with a short culm and showed better tolerance to viviparous germination than that of ‘Jopyeong’. ‘Joil’ was a multiple disease resistant rice with resistance against rice blast, bacterial blight, and stripe virus. ‘Joil’ showed higher yield in both early and late-transplanting cultivations than those of the standard rice cultivars ‘Jopyeong’ and ‘Geumo’. ‘Joil’ had enhanced grain quality under high temperature ripening conditions in early transplanting cultivation. The cooked rice had good grain appearance and taste attributes, and this cultivar had a higher head rice ratio than that of ‘Jopyeong’. ‘Joil’, a multiple disease resistant early maturing rice cultivar with high grain quality, would be suitable for early transplanting cultivation in the southern plain area (Registration No. 6792).
Keywords : Joil, Rice, Early maturing, High grain quality, Plain area

September 2018, 50 (3)
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