Akademik Veri Yönetim Sistemi
Tezin Türü: Yüksek Lisans
Tezin Yürütüldüğü Kurum: Erciyes Üniversitesi, Fen Bilimleri Enstitüsü, Türkiye
Tezin Onay Tarihi: 2017
Tezin Dili: İngilizce
Öğrenci: ASEEL FADHIL MAHMOOD MAHMOOD
Danışman: Abdurrahman Ayvaz
Özet:
In this study, we have tested the effects of Ultra violet (UV) radiation on eggs, larvae, pupa and
adults of Mediterranean flour moth, Ephestia kuehniella. When different age groups of E.
kuehniella eggs (0-72 h) were exposed to shortwave UV-radiation for six different exposure
time (50-600 s), mortality rates of the eggs increased with increasing exposure time. At the 400s
application, complete mortality was only observed for 24 h old eggs. While 476.61s was
sufficient for 24 h old eggs, 861.37s was required to prevent larval emergence from 0-2 h old
eggs completely. Killing effects of longwave UV-radiation were lower than that of shortwave
UV-radiation on the E. kuehniella eggs and no complete mortality was achieved with these
exposure times. Embryonic development periods were not changed for 0-2, 24, and 48 h age
groups of eggs with increasing exposure time. However, embryonic development period
decreased for 72 h old eggs when compared control. On the other hand, there were no
differences among age groups with respect to embryonic development when the eggs irradiated
with longwave UV-radiation at all exposure times. Mortality rates increased with increasing
exposure time when the larvae exposed to shortwave UV- radiation showing much higher effect
than longwave radiation. Because the larvae irradiated with longwave UV-radiation there was
no significant change up to 30 minutes. On the other hand, both short and longwave radiation
caused a decrease in adult emergence periods from irradiated pupae. Longevity of these adults
was not changed depending on the exposure times. In the experiments with the adult E.
kuehniella, UV-radiation does not change longevity of the adults after exposure. However, egg
production and hatchability of these eggs decreased with increased periods for both short and
longwave UV-radiation.