دراسة فسيولوجية مقارنة في التحمل الملحي لنباتي الفاصولياء (Phaseolus vulgaris L.)‎ و اللوبياء (Vigna sinensis L.)‎

Abstract EN

A comparative physiological study was conducted on the salt tolerance of two plants from Leguminosae family were kidney bean (Phaseolus vulgaris L.) and cow pea (Vigna sinensis L.), the study was including the effect of different concentrations (50 , 100 , 150 , 200) mMol / l of sodium chloride (NaCl) salt solution in addition of distill water as a control treatment, in the germination of seeds and concentrations of total sugar, reduced sugar, sucrose and starch , also the study included some chemical and physical properties of the used soil in the agriculture were the moisture of field capacity, the percentage of saturated humidity, soil texture, the value of ( pH ) and ( EC ) and the concentrations of some mineral ions (Na+ , K+ , Ca++ , Mg++ , Cl- , HCO3 - , CaCo3 = , SO4 = , CO3 = , PO4 ≡ ) , organic carbon and organic matter.

The results were showed that, the increases of salinity concentrations causes a decrease in the percentages of seed germination of the both plants, the high percentages of germination were noticed at a control, whereas the low percentages at the salinity treatment (200) mMol / l of the plants seed, also causes an increase on the concentrations of total sugar, reduced sugar and sucrose and the high concentrations of them at the salinity treatment (200) mMol / l, whereas the low at the control, also the increase of salinity causes a decrease on the concentrations of starch, the low concentrations were noticed at salinity treatment (200) mMol / l, whereas the high concentrations at the control treatment .