Question

Abscisic acid causes

• A. Faster leaf fall
• B. Dormancy of buds and seeds
• C. Retardation of growth
• D. All the above

Answer 1

The correct option is D All the above

Abscisic acid is a plant hormone. It is also called as stress hormone as it protects the plants under stress condtion. During unfavourable environmental condition, it causes bud and seed dormancy. Only under favourable condition, the seed dormancy is broken. It also causes retardation of growth. Also, it causes abscission or fall of leaves and hence, the name given.

Thus, the correct answer is option D.