Salinity affect plant growth and productivity due to increasing soil osmotic pressure and to interference with plant nutrition. When high salt concentration is high in soil solution it reduces the ability of plants to acquire water, this is refer to osmotic or water-deficit effect of salinity. This osmotic effect generates metabolic changes in the plant identical to those caused by water stress-induced “wilting” and shows few genotype differences Moreover, salt stress reduces plant growth due to specific-ion toxicities and nutritional imbalances or a combination of these factors.So we can conclude that high salt concentration ultimately leads to osmotic stress which causes ion toxicity and ultimately plants suffer with oxidative damage and it will affect the growth and productivity of crops.

due to saline water affect the pH of soil and reduce the yield of agricultural crop and quality.

Ultimately ionic imbalance is cause for pH change and affect the crop production

In a saline medium, the presence of excess amounts of salt ions (Na+, Cl-, CO4, etc) depresses the uptake and transport of other essential nutrient ions due to competition for transport channels for cations and anions so causing ionic imbalances in plants Besides, excess uptake of salt ions causes toxic effects at the cell level in plants, causing toxicity symptoms.