الفهرس 
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Abstract
The present investigation was carried out during the two successive seasons of 2013 and 2014 at the faculty of agriculture, alexandria university and molecular genetic engineering research institute (AGERI), agriculture research center (ARC), cairo, egypt on mature tree on the orchard of the tropical fruit garden in horticulture research institute, cairo, egypt, to study the cross among some mango cultivars (Mangifera indica) mono- embryonic (Keitt- Zill- Sensation) and polyembryonic mango (13/1- Sabra- peetch).