충북지역 중북부 중산간지 벼 출수생태형별 적응성 검토

• 영문명: Studies on Adaptability by Rice Heading Ecology Type in the Central Northern Mid-Mountainous Cultivation Zone of Chungbuk Region
• 발행기관: 한국작물학회
• 저자명: 이채영(Chae Young Lee) 최예슬(Ye Seul Choi) 이정관(Joung Kwan Lee) 김익제(Ik Jei Kim) 강신구(Shin Gu Kang) 우선희(Sun Hee Woo) 김영호(Young Ho Kim)
• 간행물 정보: 『한국작물학회지』제66권 제3호, 210~219쪽, 전체 10쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2021.08.30

영문 초록

In recent years, air temperature has been increasing rapidly compared to the 1980s because of global warming. This increase in temperature reduces the yield and quality of rice; therefore, measures are needed to prevent such effects and ensure food security. The early maturing type (EMT) of rice is mainly cultivated in the central northern mid-mountainous area (CNMA). This study was conducted to shift the transplanting date of EMT and to examine the adaptability of the mid-maturing type (MMT) or mid-late maturing type (MLMT) in the Jecheon region of the CNMA to address global warming. The air temperature increased by 0.7–0.9°C in the 2010s, compared to that in the 1980s, and was similar to other decades during the ripening period. Over the past 35 years, considering rice quality, the heading date of the Odae variety has arrived sooner by approximately 10 days, the ripened grain ratio has increased by more than 10%, and the thousand grain weight; however, the mean temperature at 40 days after heading has increased by more than 2°C. The late marginal heading date in the Jecheon region was determined as August 11 based on the accumulated temperature of 880°C and August 15 based on 840°C for 40 days after heading. According to different transplanting dates, milled rice yield per 10 a was the highest at 567 kg with June 10 in EMT, 595 kg with June 10 in MMT, and 572 kg with May 30 in MLMT. Considering the late marginal heading date, rice yield, and quality, the optimum transplanting date was June 15 in EMT, June 5 in MMT, and May 30 in MLMT in the Jecheon region of CNMA. Owing to global warming, MMT and MLMT are expected to be reliably cultivated in the CNMA.

목차

재료 및 방법

결과 및 고찰

적요

사사

키워드

adaptability chungbuk climate change cultivation zone heading ecology rice