The present work aimed to study the effect of habitat conditions on the total
rude protein, total amino acids and protein electrophoresis in some range species
        growing naturally in wadi El-Gafra.                                                                    _
Four species were investigated from two different habitats viz., up stream
ortion of Wadi EI-Gafra, near the high way at 63km west of Suez and Mid stream
portion of the same Wadi just N-NW EI-Asher Min Ramadan City Egypt. These
species included Panicum turgidum, Forssk; Lasiurus hirsutus, Forssk; Tamarix
mannifera, Ehrenb. And Nitraria retusa, Forssk.
 
The results indicated that there were variations in the concentrations of total
crude protein and protein amino acid of plants in response to habitat conditions, i.e.,
the species of xeric habitat (Panicum turgidum and Lasiurus hirsutus) accumulated
cyclic amino acids less than the other species which collected from saline habitat
(Tamarix mannifera and Nitraria retusa). Also the studied halophytes accumulated
proteins with low molecular weight than xerophytes species.