Question

Which one of the following statements can best explain the term critical concentration of an essential element?

• A. Essential element concentration below which plant growth is retarded.
• B. Essential element concentration below which plant growth is faster.
• C. Essential element concentration below which plant remains in the vegetative phase.
• D. Essential element concentration below which plant dies.

Answer 1

The correct option is A

Essential element concentration below which plant growth is retarded.

Critical concentration is that minimum concentration of the essential element below which the growth of the plant is reduced or retarded.