Question

What causes delay in germination of seeds?

• A. Mechanical resistance of testa
• B. Impermeability of seed coat
• C. Unavailability of water and O${}_2$
• D. All of the above

Answer 1

The correct option is D All of the above

The dormancy is the period in which the seed is unable to germinate in the presence of the favorable factors. There are many reasons which may be responsible for the delay in the germination of the seeds. The testa may be mechanically resistant and does not allow the entry of the water. The seed coat is impermeable to gases and water. There is the unavailability of gases and water which is required for respiration and germination of the seed.

Thus, the correct answer is option D.