Effects of Fractionated Dose of Gamma Irradiation on Fecundity, Mortality, and longevity of the lesser Grain Borer

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Abstract:

Protection of foodgrains from insect attack is a problem that concerns all nations. Of numerous methods employed to control insect pests of grain, chemical treatment has been the most successful. Recently, use of ionizing radiation in protection of stored grains from insect attack seems to have shown promising results, Sterilization and direct killing of the population by ionizing radiation are the techniques that have been used for this purpose. Preliminary work indicated that an exposure of 5000 R prevented fertile egg production in the lesser grain borer, Rhyzopertha dominica(F.), adults. Further, we wanted to determine if 5000 R given in a fractional division would produce any different effect than a single exposure on fertility and survival of the lesser grain borer.

Document Type: Research Article

Publication date: October 15, 1971

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