Effect of Gamma Radiation on Callosobruchus maculatus (F.) (Coleoptera: Bruchidae) and Seed Germination

Sahar Abd,Soolaf Kathier,Emad Mahmmod

doi:10.30684/etj.37.1c.14

Abstract

The grain legumes are the second most important economic crops attacked by many of storage pests, one of these pests is Cowpea seed beetle (Callosobruchus maculatus). Gamma radiation appears to be a potential alternative to chemicals control in stored products. Therefore, this research aims to study the effect of gamma radiation (0.03, 0.06, 0.09, 0.12, 0.15, 0.18 and 0.21 (kGy) on eggs, larvae, pupae and seed germination. The results of this study showed that the irradiated eggs did not hatch. While the last larval stage was very sensitive to all doses of gamma rays, no adults emerged from larvae were exposed to 0.03 (kGy) or higher doses. In addition, the highest death percentages of pupae were 88% at 0.21(kGy). Finally, the results showed the same doses used in this study did not affect the rate of seed germination compared to control. This technique would help to improve using for other agriculture pests

Highlights

S.A. Kathier and E.A. Mahmmod, “Effect of Gamma Radiation on Callosobruchus maculatus (F.) (Coleoptera: Bruchidae) and Seed Germination,” Engineering and Technology Journal, Vol 37, Part C, No 1, pp
Experimental results were analyzed by Complete Randomized Design
The percentage of normal pupae from irradiated larvae decreased from 93% in control to 3% at treatment with 0.12, the percentage of abnormal pupa increased from zero in control group to 7% at dose 0.21, and showed reduction percentage of normal adults from 87% in control to 0% at dose (0.03kGy). These results are consistent with the results of AlBadry and Ahmed [12] where it was found that a dose of 3 lead to the death of all the larvae of the Callosobruchus maculates before they reach to adults

Summary

Introduction

S.A. Kathier and E.A. Mahmmod, “Effect of Gamma Radiation on Callosobruchus maculatus (F.) (Coleoptera: Bruchidae) and Seed Germination,” Engineering and Technology Journal, Vol 37, Part C, No 1, pp. Gamma radiation appears to be a potential alternative to chemicals for insect control in stored products, One of the modern techniques in controlling stored food pests is the use of nuclear technology [6,7,8]. This work aims to study the effect of gamma radiation on these pests at some stages and the effect of radiation on seed germination.

Objectives

Results

Conclusion