Multiple choice

The cause of permanent wilting is

  1. rapid translocation

  2. rapid transpiration

  3. poor availability of soil water

  4. deficiency of nutrients
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Permanent wilting occurs when the soil water content drops to a level where the plant can no longer extract enough water to maintain turgor pressure. This is directly caused by the poor availability of water in the soil, even if the plant is physiologically healthy.

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