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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2024.9
- 수록면
- 319 - 335 (17page)
- DOI
- 10.9787/KJBS.2024.56.3.319
이용수
초록· 키워드
오류제보하기
The rice cultivar ‘JJ644wx’ was developed to improve disease resistance andlodging tolerance of Korean japonica glutinous rice cultivars. ‘JJ644wx’ was derived froma cross between ‘HR27814-B-47-1-1’ (‘Sinjinbaek’), a multiple disease-resistantmid-late maturing elite line, and ‘HR29676-AC29’, a medium-maturing glutinous linewith lodging tolerance. To shorten the breeding period, an anther culture method was appliedto F1 plants. ‘JJ644wx’ was selected through the pedigree method, yield trials, andlocal adaptability tests, with high selection pressure for disease resistance and lodgingtolerance. The heading date of ‘JJ644wx’ was August 11th, four days later than that of‘Sinseonchal’. ‘JJ644wx’ exhibited strong tolerance to lodging with a short culm length.
The 1,000-grain weight of brown rice of ‘JJ644wx’ was heavier than that of ‘Sinseonchal’,and its yield was 553 kg/10a, which was 10% higher than that of ‘Sinseonchal’. ‘JJ644wx’had a higher milling performance than ‘Sinseonchal’, but a lower head rice ratio due to ahigher percentage of broken rice. ‘JJ644wx’ tended to be situated between ‘Sinseonchal’and ‘Dongjinchal’ in terms of pasting and texture characteristics. ‘JJ644wx’ is the onlyKorean japonica glutinous rice cultivar resistant to the most virulent bacterial blight race,K3a; it also showed resistance to rice blast and stripe virus. ‘JJ644wx’ is expected to be avaluable resource that could contribute to improving the cultivation stability of Korean japonicaglutinous rice in response to climate change (Registration No. 9606).
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