الفهرس 
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Abstract
Effect Of Certain Insecticides On The Cytological Features And Morphological Characters In Cotton
This investigation deals with the effect of three insecticides; Nuvacron , cyolane and kelthane / Dimeothoate , on the chromosnal behaviour , fertility and yield of Egyptian cotton variety Giza 66. three different concentrations of the three insecticides , Nuvacron (0.08 % , 0.16 % and 0.2 % ) , cyolane (0.19 % , 0.38 % and 0.57 %) and kelthane / Dimeothoate (0.113 % , 0.026 % and 0.039 %) were used for root treatment and plant spraying