Answer:
Could kill a plant by passing long time
Step-by-step explanation:
Cyanide can be absorbed by plants by their roots, it can inhibit plant respiration and interferes also in absorption of nutrients from the soil. If the doses are so high or the time of exposition is too long, can end in plant death.
If the concentration is small will affect plant grow and plant germination, so again, can reduce plant population.
Hope this info is useful.