Which is produced during water stress that brings stomatal closure?
Correct answer: B. Abscisic acid
- A. Ethylene
- B. Abscisic acid
- C. Ferulic acid
- D. Coumarin
Explanation
b) :Abscisic acid is produced during water stress that brings stomatal closure. Abscisic acid is a stress hormone and it is produced during water scarcity, when the transpiration rate exceeds absorption, the plant faces water stress condition. As a result, incipient wilting occurs. Under water stress condition ABA increases which induces stomatal closure.
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