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Plant Water Relation — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYPlant Water Relation4 Marks
Question
Explain about the factors that affect water absorption.
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Answer

  1. Water is absorbed by unicellular root hairs from soil.
  2. Presence of capillary water in soil is needed as this water from soil is absorbed by root hairs.
  3. Soil temperature of 20-30°C favours water absorption.
  4. Rate of absorption is decreased by high concentration of solutes in soil.
  5. Soil should be properly aerated, poorly aerated soil shows poor absorption rate.
  6. Increased transpiration accelerates rate of absorption of water.

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