Question

Soil water available to plants is
A) Holard
B) Echard
C) Chresard
D) None of the above

Answer 1

Hint:The water held by the soil is known as soil water. The water can be present as vapour, liquid, or solid.

Complete answer:
Let us first understand the importance of soil water. Soil water is important because of the following reasons,
It provides nutrition to plants readily
It helps in good structure formation
It help in the process of photosynthesis
It helps in maintaining good turgidity of the plant

>Option a: Holard means the total water content present in the soil. Holard includes all forms of water. It includes water in the form of - water vapor, hygroscopic form, combined form and capillary form. But the only water available to the roots is capillary water. Therefore, this is the correct option.
>Option b: Echard means soil water which is not available to the plants and not soil water available to plants. Therefore, this is the incorrect option.
>Option c: Chresard means the total water available to the plant for absorption and not soil water available to plants. Therefore, this is the incorrect option.
>Option d: As one of the options is correct, therefore, this option is incorrect.

Thus, the correct option is (a)Holard.

Note:Soil is a complex mixture of minerals, air, organic matter, water and several microorganisms. Soil helps in holding water and is capable of supporting a plant life.