1. Tardigrade
  2. Question
  3. Biology
  4. Assertion Light is very important factor in transpiration. Reason It induces stomatal opening and darkness closing. Therefore, transpiration increases in light and decreases in dark.

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Q. Assertion Light is very important factor in transpiration.
Reason It induces stomatal opening and darkness closing. Therefore, transpiration increases in light and decreases in dark.

AIIMSAIIMS 2012

Solution:

Light induces opening of stomata and increase the temperature, both these factor help in increase of transpiration while darkness causes closure of stomata and reduces the rate of transpiration. Transpiration depends on closure and opening of stomata.