الفهرس 
INTRODUCTION.Only 14 pages are availabe for public view
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Abstract
First and foremost, all the praises and limitless thanks are due to
ALLAH who gave me the capability to do this Thesis.
I would like to express my sincere thanks, deep gratitude to Prof. Dr.
Shoukry Mahmoud Selim, Prof. of Floriculture, Medicinal & Aromatic
Plants, Hort. Dept., Fac. Agric., Fayoum Univ., my supervisory committee,
for suggesting the problems, for his support, strong ethic, and his invaluable
help and encouragement throughout my degree and during finish writing,
revision the thesis.
I wish to express my appreciation to my committee member Dr.
Ebtsam Mohammed Mohammed Abdella, Prof. of Floriculture, Medicinal
& Aromatic Plants Hort. Dept., Fac. Agric., Fayoum Univ. for her support
and constant advice, patience, love and great help during all the stage of the
thesis