혹명나방 피해 정도에 따른 벼 수량 및 미질 반응 (Response of Rice Yield and Grain Quality as Affected by Rice Leaf Folder)

서지정보

· 발행기관 : 한국작물학회
· 수록지 정보 : 한국작물학회지 / 53권 / 72 ~ 77페이지
· 저자명 : 원종건, 안덕종, 김세종, 최충돈, 이상철

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.

영어초록

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.

참고자료

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