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タイトルヨミ
コンチュウ ノ ハツイク ノ ニチ シュウキセイ オ トラエル ホウホウ
日本語以外のタイトル
A Method for Detecting the Daily Rhythums in Development of Insects
ファイル
言語
日本語
著者
長澤 純夫
後北 峰之
大田 利彦
小島 幸久
田中 敏章
吉田 茂
内容記述(抄録等)
In order to disparse the time of hatching, several batches of eggs of the tobacco cutworm, Spodoptera litura Fabricius, deposited within 4 hours were kept in constant temperature cabinets of 21.0, 22.5, 24.0, 25.5 and 27.0℃. The hatched larvae were reared on an artificial diet at 25℃ under a regime of 12L : 12D. The moulted individuals at the end of the fifth larval instar were counted at 4 hour intervals over a 24 hour period, that is, at 0, 4, 8, 12, 16 and 20 hours. The numbers of individuals of pupation and emergence were also counted at the same hours. By this method of experiment, the cycles of moulting, pupation and emergence were possible to synchronized with daily. The results of harmonic analysis showed that these daily rhythms are well described by the mathematical model of sine curve. The calculated sine curve equations are Y=2.3775-0.5242u_1+1.3423v_1 for moulting, Y=2.5771-1.1200u_1-0.3594 v_1 for pupation, and Y=1.5437-0.8993u_1-0.2650v_1 for emergence. The estimated maximum times of moulting, pupation and emergence are 7.25, 13.11 and 5.05, respectively. Hence, the estimated minimum times would be 12 hours earlier at 19.25, 1.11 and 17.05.
掲載誌名
島根大学農学部研究報告
14
開始ページ
149
終了ページ
152
ISSN
0370940X
発行日
1980-12-15
NCID
AN00108015
出版者
島根大学農学部
出版者別表記
Shimane University, Faculty of Agriculture
資料タイプ
紀要論文
部局
生物資源科学部
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