혹명나방 피해 정도에 따른 벼 수량 및 미질 반응

• 영문명: Response of Rice Yield and Grain Quality as Affected by Rice Leaf Folder
• 발행기관: 한국작물학회
• 저자명: 원종건(Jong Gun Won) 안덕종(Duok Jong Ahn) 김세종(Jong Kim) 최충돈(Chung Don Choi) 이상철(Sang Chul Lee)
• 간행물 정보: 『한국작물학회지』제53권 제s호, 72~77쪽, 전체 6쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2008.12.30

영문 초록

This study was carried out to determine the response of the rice yield and grain quality by rice leaf folder (RLF, Cnaphalocrocis medinalis G.) and identify the damages caused by different transplanting dates, nitrogen amounts and chlorophyll amounts (SPAD value) of rice leaf. As the damage degree of RLF was getting severer, the ripened grain rate and 1000-grain weight were decreased and due to the increasing of chalky rice rate the rate of head rice was reduced. Therefore, the yield of head rice was decreased by 36% in heavily damaged rice plant. Among the physicochemical characteristics, protein content of rice grain was increased but amylose content was reduced, consequently, the palatability was deteriorated in heavily damaged rice by RLF. The degree of damage of RLF was getting serious as transplanting date was delayed and as the amount of nitrogen was increased. In the relationship between the SPAD value and the damage degree of RLF, as the SPAD value was increased by nitrogen fertilizing, the damage degree was also increased exponential functionally.

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키워드

rice leaf folder transplanting date nitrogen ratio grain quality