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2019 Vol.64, Issue 3 Preview Page

Original Research Article

Heading and Ripening Characters of Major Early Maturing Breeding Rice Lines According to Transplanting Date and Temperature Condition

이앙기 및 온도에 따른 주요 벼 조생종 교배모본의 출수 및 등숙 특성 변화

Woon-Ha Hwang1*
,
Chung-Kuen Lee2
,
Jae-Hyeok Jung1
,
Hyeon-Suk Lee1
,
Seo-Yeong Yang1
,
Yeon-Hwa Im1
,
Kyung-Jin Choi2
황 운하1*
,
이 충근2
,
정 재혁1
,
이 현석1
,
양 서영1
,
임 연화1
,
최 경진2
1Agriculture Junior Scientist, National Institute of Crop Science, RDA
2Agriculture Senior Scientist, National Institute of Crop Science, RDA
1농촌진흥청 국립식량과학원 작물재배생리과 농업연구사
2농촌진흥청 국립식량과학원 작물재배생리과 농업연구관
* Corresponding Author
30 September 2019. pp. 185-192
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Abstract

Early-maturing rice type is cultivated to produce rice before the Korean Thanksgiving Day. We investigated the flowering and ripening characteristics of major breeding lines in early maturing rice type. In Jeonju, field growth days (FGD) from transplanting to heading changed about 3.3 days by 10 days of transplanting days and about 2.5 days by the change of mean temperature during growth period. As the temperature during ripening stage, 1000 brown rice weight was changed 0.2 g, the rice quality of brown and milled rice was changed 5% and 6.5%, respectively. Baegilmi and Kittake showed early heading habit suitable for harvesting before Korean Thanksgiving. Joun and Pecos showed good ripening characteristics under high temperature during the ripening stage. We expect that these characteristics might be useful for breeding new rice cultivars for harvesting before Korean Thanksgiving.

Keywords
early maturing type
heading
rice
ripening
temperature
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Information
  • Publisher :The Korean Society of Crop Science
  • Publisher(Ko) :한국작물학회
  • Journal Title :The Korean Journal of Crop Science
  • Journal Title(Ko) :한국작물학회지
  • Volume : 64
  • No :3
  • Pages :185-192
  • Received Date : 2019-07-15
  • Revised Date : 2019-08-19
  • Accepted Date : 2019-09-15
  • DOI :https://doi.org/10.7740/kjcs.2019.64.3.185
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