الفهرس 
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Abstract
This study was conducted during the two successive seasons of 2003 and 2004 in a private vineyard located at el- tal western village, dear moase district , El- Minia Governorate on Sixty uniform in vigour and head trained red roomy grapevines . the selected vines are grown in a clay soil and spaced at 2x 2m apart , surface irrigation system was followed.
this study was initiated to investigate the effect of concentrations and number of sprays the natural bio-stimulant promise (containing most macro and micro nutrients as well as some antioxidants ) on berry set % , yield and quality of red roomy grapevines , also the merit was detecting the best concentration and results with regard to production and quality paramenters.