Biology Question on Nutrition

Question

Yellowish edges appear in leaves deficient in

Answer 1

Solution

Potassium $(K^+)$ is usually found in the growing regions of plant. It is one of the constituents of the protoplasm. In the scarcity of potassium, the normal edges of the leaves become yellowish, and the stem becomes somewhat thin. The plants take potassium from the soil in the form of potassium nitrate and potassium chloride.