Halophytes a New Key for Developing Saline Regions {1} Classification

Abstract

Halophytes are receiving more attention from plant scientist, for improvement of the performance of glycophytes in saltaffected soils, unfortunately, the major economic crops (Glycophytes) could not tolerate salinity conditions even low concentrations, Halophytes species are a diverse group of plants with varying degrees of actual salt tolerance, there are various classifications of halophytes based on different characters, as their chemical composition of the shoots, or their ability to secrete ions, as their characteristics of naturally saline habitats, on Physiological bases, and as Ecological types. There are many growth forms can be distinguished in the halophytic species, these growth forms reflect the high stress in the salt lands, some of this growth form Rhizomatous, Leafless succulent shrub, Leafy non-succulent herbs, Leafless tree, and Succulent herb. Halophytes has various life forms which reflect their response to the high salt levels, it includes Annual plants; Perennial; Perennial grass; Perennial sea grass; Perennial shrubs, Shrub; Fern; Parasitic perennial plant; Sea grass; Vine, and trees. Halophytes utilize two main strategies (Salt tolerance and Salt avoidance) to adapted and complete life cycle under highly saline conditions. Also, halophytes use various complicated mechanisms for survival under salinity environments by regulate ion concentrations in the cell, or exert excessive salt out of plant tissue.

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