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Register a new userEffect of Gamma Radiation on Eggs of Callosobruchus maculatus (Fabricius) (Coleoptera: bruchidae)
تأثير أشعة غاما في بيوض خنفساء اللوبياء و الحمص (Callosobruchus maculatus (fabricius) (Coleoptera :bruchidae
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حمزة بلال( باحث )
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تمت دراسة تأثير جرع تصاعدية من أشعة غاما من 4GY حتى 24 GY في بيض خنفساء اللوبياء و الحمص Callosobruchus maculatus بأعمار مختلفة لتحديد تأثيرها في نسبة فقس البيض، و تتبع بعض الصفات البيولوجية للحشرات الناتجة عن بيض عومل بالجرعات تحت القاتلة له. و قد لوحظ أثر أشعة غاما بالجرعات المنخفضة GY 8 على بيض عمره يوم واحد إذ أدت إلى قتل أغلب البيض قبل الفقس و لم ينتج عنه أي حشرة كاملة، و أدت الجرعة 12 GY النتيجة نفسها على بيض عمره يومان. بينما لم يلاحظ لمعاملات الأشعة أثر يذكر في خفض نسبة فقس البيض بعمر ثلاثة أيام أو أربعة أو خمسة بل أدت إلى ارتفاع نسبة الموت بعد الفقس، و لم ينتج من تلك البيوض المعاملة بالجرعة 16 GY سوى 1,8 % من الحشرات الكاملة.
This experiment was carried out to study the effect of increasing gamma radiation doses (up to 24 GY) on the eggs of Callosobruchus maculatus, at different ages, to determine their effect on egg hatching rate, and other biological traits of the emerging adults from eggs treated with sub – lethal doses. It has been noticed that the low gamma radiation doses killed most of the one –day old eggs before hatching, and no adult insect could emerge from hatching those eggs, and the dose of 12GY caused the same effect, but on two day-old eggs. when eggs were at the age of 3, 4, and 5 days, gamma radiation didn’t have influenced on the embryo development, but demise percentage, increased after hatching. The percentage of emerged adults was only 1.8% for the eggs treated with 16 GY gamma radiation.
References used
Abdel Baky, S.M. (1986). The effect of gamma irradiation on certain stored product insects in Egypt. Ph. D. Thesis, Fac, Agric., Ain Shams Univ., Cairo, Egypt
Abdel Salam, K.A. (1983). Effect of gamma iradiation on the Mediteranean flour moth Ephestia kuehniella. Ph. D. Thesis Fac. Agric., Cairo Univ., Cairo, Egypt
Adem, E., Watters, F.L., uribe – Rendon, R. and P. Piedad, A.D. (1978). Comparison of 60Co gamma irradiation and accelerated electrons for suppressing emergence of Sitophilus spp in stored maize, J. Stored prod. Res. 14, 135 – 142
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temperature and humidity at Biotechnology Research Center, Al-baath University.
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