الأراضي الملحية و النباتات النامية فيها بمنطقة وادي سوف

Abstract

Saline soils cover an important part of the Earth’s surface and are spread almost along the geographical latitude. Saline soils are found on five continents, but their spread is wider in areas with desert and semi￾desert climates. Since salty lands are considered a major environmental and agricultural problem in the world, and in Algeria and Oued Province in particular, their high salt content makes growing plants difficult and leads to soil fertility. Large concentrations of dissolved salts in the soil solution have indirect effects on plants through their effects on the soil structure and the movement of water and oxygen in particular, which have direct effects on the growth and development of plants. Lands affected by salts are characterized by a morphology that depends on the quantity and quality of salts. The surface crust of these lands appears wet and fragile, and its color varies from light to dark. Mechanisms of plant resistance to salinity are of great importance in providing information about plant varieties in order to exploit them in plant production. We have presented the types of plants according to their classification according to their tolerance to amounts and degrees of salinity in the medium of their cultivation. The germination stage is considered the most critical stage in a plant’s life, as seed germination is one of the most important stages in a plant’s life, which is greatly affected by salinity.