Susceptibility of Callosobruchus chinensis (Coleoptera: Bruchidae) infesting chickpea to low energy electrons

Singh, S. and Bhalla, S. and Srinivasan, K. and et al, . (2015) Susceptibility of Callosobruchus chinensis (Coleoptera: Bruchidae) infesting chickpea to low energy electrons. Indian Journal of Agricultural Sciences, 85 (3). pp. 387-391.

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Abstract

Low energy electrons irradiation has been reported to effectively disinfest the grains and is considered safe and environment friendly. Laboratory experiments were conducted to study the effect of low energy electrons at various doses, viz. 0.25, 0.5, 0.75, 1.0, 1.25 and 1.5 kGy at an energy level of 500 keV on different stages of adzuki bean weevil, Callosobruchus chinensis (L.) infesting chickpea. Percent adult emergence from seeds infested with pupa decreased from 76.6 % in the control (unirradiated) to 6% at irradiation dose of 1.5 kGy. There was no adult emergence from the eggs oviposited by irradiated female at 0.25 kGy, whereas, untreated female produced 95.3% of adults in next generation. Egg stage was comparatively more sensitive while late larva was most tolerant stage to the treatment. The LD99 values of egg, early larva, mid larva, late larva and pupa were 1.21, 1.25, 2.94, 3.64, and 1.81 kGy respectively. The estimated doses for 50 and 99% control of adults were 1.09 and 2.25 kGy respectively. Low energy electron treatment did not affect the germination of chickpea seeds.

Item Type: Article
Uncontrolled Keywords: Adult emergence, Callosobruchus chinensis, Chickpea, Longevity, Low-energy electrons, Mortality
Author Affiliation: National Bureau of Plant Genetic Resources, New Delhi 110 012
Subjects: Plant Protection
Divisions: Chickpea
Depositing User: Mr B Krishnamurthy
Date Deposited: 06 Nov 2015 10:15
Last Modified: 06 Nov 2015 10:15
URI: http://eprints.icrisat.ac.in/id/eprint/13976

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