애멸구 온도 발육 모델과 월동 개체군의 성충 발생 예측
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서지정보
ㆍ발행기관 : 한국응용곤충학회
ㆍ수록지정보 : 한국응용곤충학회지 / 50권 / 4호
ㆍ저자명 : 박창규, 박홍현, 김광호
ㆍ저자명 : 박창규, 박홍현, 김광호
영어 초록
 ,  , The developmental period of Laodelphax striatellus Fallen, a vector of rice stripe virus (RSV), was investigated at ten constant temperatures from 12.5 to 35±1℃ at 30 to 40% RH, and a photoperiod of 14:10 (L:D) h. Eggs developed successfully at each temperature tested and their developmental time decreased as temperature increased. Egg development was fasted at 35℃(5.8 days), and slowest at 12.5℃ (44.5 days). Nymphs could not develop to the adult stage at 32.5 or 35℃. The mean total developmental time of nymphal stages at 12.5, 15, 17.5, 20, 22.5, 25, 27.5 and 30℃ were 132.7, 55.9, 37.7, 26.9, 20.2, 15.8, 14.9 and 17.4 days, respectively. One linear model and four nonlinear models (Briere 1, Lactin 2, Logan 6 and Poikilotherm rate) were used to determine the response of developmental rate to temperature. The lower threshold temperatures of egg and total nymphal stage of L. striatellus were 10.2℃ and 10.7℃, respectively. The thermal constants (degree-days) for eggs and nymphs were 122.0 and 238.1DD, respectively. Among the four nonlinear models, the Poikilotherm rate model had the best fit for all developmental stages (r<, SUP>, 2<, /SUP>, =0.98∼0.99). The distribution of completion of each development stage was well described by the two-parameter Weibull function (r<, SUP>, 2<, /SUP>, =0.84∼0.94). The emergence rate of L. striatellus adults using DYMEX<, SUP>, ®<, /SUP>, was predicted under the assumption that the physiological age of over-wintered nymphs was 0.2 and that the Poikilotherm rate model was applied to describe temperature-dependent development. The result presented higher predictability than other conditions.참고 자료
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