Question
Biology Question on plant growth and development
Seed dormancy is due to the
A
Ethylene
B
Abscissic acid
C
IAA
D
Starch
Answer
Abscissic acid
Explanation
Solution
The correct option is (B) : Abscissic acid
When seeds are in a state of dormancy, they cannot germinate even in environments that are typically favourable for germination. Abscisic acid (ABA), a sesquiterpene, controls a number of activities throughout the plant life cycle, including crucial seed formation events such the accumulation of store reserves, suppression of premature germination, development of desiccation resistance, and induction of primary dormancy.