Correct option is A
The correct answer is: (A) 1/3 – 15 atm
Explanation:
The available water in soil refers to the amount of water held between the field capacity and the permanent wilting point, which corresponds to the soil moisture tension between 1/3 atmosphere (field capacity) and 15 atmosphere (permanent wilting point).
The available water in soil refers to the amount of water held between the field capacity and the permanent wilting point, which corresponds to the soil moisture tension between 1/3 atmosphere (field capacity) and 15 atmosphere (permanent wilting point).
This is the range in which water is readily available to plants for uptake through their roots.
Information Key Points:
Permanent wilting point (15 atm): The point at which plants can no longer extract water; they wilt permanently.
Available water = Field Capacity – Wilting Point
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