الفهرس 
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Abstract
The present study was carried out estimate the effects of amino acids foliar application and weting agent on salinity levels and drought durations on growth, yield and chemical constituents as well as pigments and physiological parameter oncatharanthus roseus (L). G. don in the pots and field experiments were conducted at the desert research center, Mataria, Cairo Egypt and its experimental farm at Elmaghara experimental station in South Sinai govermorate, during the two successive seasons of 2014/2015.