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Effects of gamma irradiation on inherited sterility of pomegranate fruit moth, Ectomyelois ceratoniae Zeller

Published online by Cambridge University Press:  19 September 2011

Mohammed A. J. Al-Izzi ,
Sadika K. Al-Maliky  and
M. Z. Khalaf
Mohammed A. J. Al-Izzi*
Affiliation:
Entomology Department, Nuclear Research Centre Baghdad, P. O. Box 765, Iraq
Sadika K. Al-Maliky
Affiliation:
Entomology Department, Nuclear Research Centre Baghdad, P. O. Box 765, Iraq
M. Z. Khalaf
Affiliation:
Entomology Department, Nuclear Research Centre Baghdad, P. O. Box 765, Iraq
*
* All correspondence send to M. A. J. Al-Izzi.
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Abstract

Five-to six-day old male pupae of Ectomyelois ceratoniae Zeller were irradiated with 0, 20, 25 and 30 krad of gamma rays. When the radiated males were mated with normal females there were deleterious effects on fertility without extreme effects on mating or fecundity. Percentage of embryonated eggs and progeny per female decreased to two thirds of the control by 25 and 30 krad treatments. Productivity of the female mated with irradiated males was decreased and significant reductions in egg viability, egg hatch and larvae per female were observed in F1 generation. Similar pattern of sterility was observed in sibling crosses of F2 at the three doses.

Résumé

Les chrysalides males de Ectomyelois ceratoniae Zeller a lage de 5–6 jours ont ete irradies avec 0, 20, 25 et 30 krad. L'union de males irradies avec femelles non-rayonnees ont causes une effet nuisible sur ta fertilite sans effets extre me sur l'union ou fecondite. L'embryogenie pourcentage et les descendances par femelle ont ete deminuees pour 2/3 de controle (non-irradies) avec les traitements 25 et 30 krad. La productivite de la femelle conjoint avec le male rayonne a deminue aussi let une reduction significant en viabilite d'oeuf, declore d'oeuf, et la larve par femelle a ete observe chez le F1. Une exemple semblable de la sterilite a ete observe chez le croisement parente pour les F2 par trois doseses.

Keywords

Inherited sterilityEctomyelois ceratoniaeradiation
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 14 , Issue 5-6 , December 1993 , pp. 675 - 679
Copyright
Copyright © ICIPE 1993

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