Abstract
Gamma irradiation levels for LD50 values on 3rd-stadial larvae of Amphimallon majalis (Razoumowsky) were 3300 rad (3.3 krad) for fall-collected individuals and 7.1 krad for spring-collected individuals when exposed as mature 3rd-stadial grubs approaching the prepupal stage. Serial sections of grubs exposed to doses of 0.5 to 50 krad all showed visible cytological injury to the germinal cells with pyenotic nuclei present in the treated testicular follicle. Male 3rd-stadial grubs were consistently more susceptible to gamma irradiation than females; exposure to 1 krad in the former produced comparable effects in emergence as 2.5 krad in the latter. Both male and female adults emerging from grubs treated at 2.5 had had deformed wings. Grubs exposed to lower doses produced beetles with slightly shorter elytra than adults from nonirradiated grubs. Dose requirement for completely sterilizing larvae was higher than that for completely inhibiting metamorphosis.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
