茨城県産ムラサキツバメの幼虫・蛹の発育における温度・日長反応および蛹越冬の可能性の検討

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Eggs, larvae and pupae of Narathura bazalus (Ibaraki population) were reared at 17, 20, 23, 25 and 28℃ under long-day (LD 15:9) or short-day (LD 12:12) conditions. Egg periods were 6, 5 and 4 days at 20, 23 and 25℃, respectively. The developmental zero and the total effective temperature for egg development (from oviposition to egg-hatch) were 11.0℃ and 54.7 degree-days, respectively. Photoperiod affected the development of larvae and pupae. Under long-day condition, the average periods from egg-hatch to adult emergence were 64, 47, 36, 30 and 27 days at 17, 20, 23, 25 and 28℃, respectively. Under short-day condition, they were 61, 47, 36, 32 and 29 days, respectively. The periods at 17, 25 and 28℃ were significantly different between two photo-regimens. Under long-day condition, the developmental zero and the total effective temperature were 9.0℃ and 320 degree-days for larval development (from egg-hatch to pupation) and 9.9℃ and 171 degree-days for pupal development (from pupation to adult emergence), respectively. Under short-day condition, those values were 6.9℃ and 384 degree-days for larval and 8.3℃ and 196 degree-days for pupal development, respectively. In December, most pupae could emerge as adults when they were warmed, but no surviving pupae were shown in and after February. We concluded that N. bazalus might not pass winter in the pupal stage at least in the north part of Kanto district, central Japan. The significance of the photoperiodic response shown in the present study was discussed.
日本鱗翅学会の論文
2003-06-30

茨城県産ムラサキツバメの幼虫・蛹の発育における温度・日長反応および蛹越冬の可能性の検討

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