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      Question

      The point at which a plant cannot extract any more

      water from the soil and wilts permanently is:
      A Field capacity Correct Answer Incorrect Answer
      B PWP (Permanent Wilting Point) Correct Answer Incorrect Answer
      C Saturation Correct Answer Incorrect Answer
      D Hygroscopic point Correct Answer Incorrect Answer

      Solution

      At PWP, the soil moisture tension is about 15 bars. The water is held so tightly by soil particles that plant roots cannot exert enough suction to extract it.

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