Which statement best describes the difference between protective and systemic seed treatments?

• A. Protective treatments stay on seed surface forming a barrier.
• B. Systemic treatments stay on seed surface forming a barrier.
• C. Both types are purely cosmetic.
• D. Systemic treatments are never absorbed by the plant.

Answer: (A)

The difference being tested is where the protection acts: on the seed surface versus inside the plant. Protective seed treatments form a coating on the seed that acts as a barrier to pathogens as germination occurs, guarding the seed and emerging seedling at the surface. That’s why the statement describing protective treatments as staying on the seed surface forming a barrier is the best description.

Systemic seed treatments, on the other hand, are designed to be absorbed by the seed and transported within the plant to provide protection from inside tissues. So saying they stay on the surface is incorrect, and it would also be misleading to call both types purely cosmetic. And systemic treatments are indeed absorbed and moved through plant tissues, not “never absorbed.”