Question

Which is the characteristic feature of a physiologically dry soil?

• A. There is plenty of water in the soil
• B. Light available to the plants is not sufficient
• C. Concentration of salts is very high in soil water
• D. None of the above

Answer 1

The correct option is C Concentration of salts is very high in soil water

Physiologically dry soil have very high concentration of salts. It is basicly dead soil from lack of oxygen and high salt content. The halophytes are plants of physically wet but physiologically dry habitats. Such plants are commonly found near sea-shores where mesophytes and freshwater hydrophytes cannot thrive well. Although these plants grow in the areas which are well saturated with water yet they cannot avail of the water because of high concentration of salts in the soils.

Therefore, the correct answer is option C.