논문 상세보기

벼 등숙기 침관수 피해에 따른 수량 및 품질 특성 변화 KCI 등재

Change in Yield and Quality Characteristics of Rice by Flooding during the Ripening Stage

  • 언어KOR
  • URLhttps://db.koreascholar.com/Article/Detail/330961
서비스가 종료되어 열람이 제한될 수 있습니다.
한국작물학회지 (Korean Journal of Crop Science)
한국작물학회 (Korean Society Of Crop Science)
초록

The increase in the frequency of occurrence of abnormal weather could include severe rainfall, which could cause rice submergence during the ripening stage. This experiment was conducted to clarify the effects of submergence during the ripening period on yield and quality of rice. The flooding treatment was conducted at 7 and 14 days after heading. Flooding conditions were created with two conditions, flag leaf exposed and overhead flooding, and each condition was divided into two conditions according to water quality—clear and muddy. Although the yield decrease was more severe at 7 days after heading because of the decrease in the ripening ratio, the head rice ratio was more affected at 14 days after heading because of the increase in the chalky kernel ratio. The maximum quantum yield (Fv/Fm), which indicates the photosynthetic efficiency, did not differ before and after the flooding treatment until flooding continued for 4 days. In addition, stem elongation occurred because of flooding as an avoidance mechanism in japonica rice. This phenomenon was expected to decrease the supply of assimilation products to the spikelet (sink). Overall, it was suggested that additional experiments should be conducted examining the change in the starch synthesis mechanism and transfer of assimilate products resulting from submergence, for development of cultivation techniques corresponding to submergence and breeding of varieties with submergence tolerance characteristics.

저자
  • 이현석(농촌진흥청 국립식량과학원 작물재배생리과) | Hyeon-Seok Lee (Crop Production & Physiology Division, NICS, RDA, Wanju 55365, Korea)
  • 황운하(농촌진흥청 국립식량과학원 작물재배생리과) | Woon-Ha Hwang (Crop Production & Physiology Division, NICS, RDA, Wanju 55365, Korea)
  • 정재혁(농촌진흥청 국립식량과학원 작물재배생리과) | Jae-Hyeok Jeong (Crop Production & Physiology Division, NICS, RDA, Wanju 55365, Korea)
  • 안승현(농촌진흥청 국립식량과학원 작물재배생리과) | Seung-Hyeon Ahn (Crop Production & Physiology Division, NICS, RDA, Wanju 55365, Korea)
  • 백정선(농촌진흥청 국립식량과학원 작물재배생리과) | Jeong-seon Baek (Crop Production & Physiology Division, NICS, RDA, Wanju 55365, Korea)
  • 정한용(농촌진흥청 국립식량과학원 작물재배생리과) | Han-Yong Jeong (Crop Production & Physiology Division, NICS, RDA, Wanju 55365, Korea)
  • 박홍규(농촌진흥청 국립식량과학원 작물재배생리과) | Hong-kyu Park (Crop Production & Physiology Division, NICS, RDA, Wanju 55365, Korea)
  • 구본일(농촌진흥청 국립식량과학원 작물재배생리과) | Bon-il Ku (Crop Production & Physiology Division, NICS, RDA, Wanju 55365, Korea)
  • 윤종탁(농촌진흥청 국립식량과학원 작물재배생리과) | Jong-Tak Yun (Crop Production & Physiology Division, NICS, RDA, Wanju 55365, Korea)
  • 이건휘(농촌진흥청 국립식량과학원 작물재배생리과) | Geon-Hwi Lee (Crop Production & Physiology Division, NICS, RDA, Wanju 55365, Korea)
  • 최경진(농촌진흥청 국립식량과학원 작물재배생리과) | Kyung-Jin Choi (Crop Production & Physiology Division, NICS, RDA, Wanju 55365, Korea) Corresponding author