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Effect of Gamma Rays on Some Stages of Development of Rhyzopertha dominica (Fab.) | ||
| Baghdad Science Journal | ||
| Article 1, Volume 6, Issue 1, 2009, Pages 11-19 | ||
| Authors | ||
| Emad A.Mahmood; Ikhlas M.Al-Sharifi; Aiad A.Al-Taweel | ||
| Abstract | ||
| The effect of different doses of gamma rays that emitted from 60Co on the development of different stages of lesser grain borer Rhyzopertha dominica (Fab.) was investigated . The results showed that the eggs in both early (1-3 days) and late (7-9) old were very sensitive to gamma rays and its hatch was zero at 10 Gy for both ages in comparison with 83.3% for the control group. Furthermore, the results illustrated that the larval stage in its two old ages were different in the radiosensitivity, the percent of its death were 100% & 96.6% when they exposed to 100 & 120 Gy, respectively. Moreover, the results showed that the sensitivity of pupal stage at age of 1-3 days was increased with increasing the doses of gamma rays, the percent of normal adults eclosed from irradiated pupae was 83.3% at the dose of 20 Gy and it became 3.3% at the dose of 200 Gy in comparison with that of the control treatment which was 93.3%. | ||
| Keywords | ||
| Gamma Rays; Lesser grain borer; Biology | ||
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