Effect of Four Different Salts on Seed Germination and Morphological Characteristics of Oryza sativa L. cv. MR219

Plants are usually exposed to abiotic stress, such as drought, temperature, salinity, metal toxicity, herbicides in which all these could potentially affect the crop production Among all abiotic stresses, salinity is one of the most brutal environmental constraints that bring detrimental effects on productivity and crop loss worldwide Under high salt stress conditions, most of the crop plants are susceptible and unable to survive. Increased salinization in coastal areas and arable land is predicted to become a huge problem throughout much of the world. Approximately 6.5% of world"s total area and about 20% of the cultivated area is already affected by soil salinity. All over the world, about 397 million ha of land has been affected by different type of salts such as sodium chloride (NaCl), calcium chloride (CaCl 2 ), sodium sulphate (Na 2 SO 4 ), and magnesium sulfate (MgSO 4 )