الفهرس 
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Abstract
The present investigation was carried out at the agriculture reasearch station, faculty of agriculture, alexandria university in the summer seasons of 2011 and 2012.
The main objective of this work was to study the effect of three levels of boron application, and three levels of plant population, on the field performance of the long staple cotton cultivar giza 88 (Gossypium barbadens, L.).