キンモンホソガの休眠に関する研究 : III.休眠誘起に対する光周反応の地理的変異

概要

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The critical photoperiod for the induction of diapause in the 3rd generation of the apple leaf miner was about 14 hr in the Asahikawa (43°40'N), (about 13.5 hr in the Morioka (39°42'N)), about 13 hr in the Suzaka (36°40'N) and the Nimi (34°59'N : 400m height), about 12.5 hr in tbe Hamamatsu (34°34'N) and the Amagi (33°26'N) populations at 20℃. It was indicated that the critical photoperiod is generally longer in the northern than in the southern population, and varied at a rate of approximately 30 min per 3.5 degrees of the latitude. The critical photoperiod was also variable with the altitude. From these results, the day on which the photoperiod reached to the critical point in each location was estimated as August 27 in Asahikawa, September 14 in Suzaka, September 20 in Hamamatsu, September 13 in Nimi, and September 27 in Amagi, respectively. In the Suzaka population oviposited from August 20 to 30,96.4% of larvae which attained the tissue feeding stage before the critical photoperiod (September 15 at Morioka) became non-diapaused pupae, while 70.6% of the sap feeder became diapaused pupae. From the critical photoperiod and monthly mean temperature, it was calculated that this leaf miner has 3 generations in Asahikawa, and 6 or more generations in Amagi in a year.
日本応用動物昆虫学会の論文
1985-08-25