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FERTILITY AND SURVIVAL OF TOBACCO BUDWORMS, HELIOTHIS VIRESCENS (LEPIDOPTERA: NOCTUIDAE), FROM GAMMA-IRRADIATED FEMALES1
Published online by Cambridge University Press: 31 May 2012
Abstract
Female Heliothis virescens (F.) were irradiated with 7.5, 15.0, 22.5, or 30.0 krad of γ-rays and crossed with untreated males. Then the survival and fertility of the F1 insects from these crosses and the survival of the F2 descendants were studied. The F1 survival showed a dose-dependent reduction with increasing dose, but F2 survival was normal. Likewise, we found near-normal fertility in progeny from irradiated females, regardless of dose.
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- Copyright © Entomological Society of Canada 1973
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