Question

Interveinal chlorosis of leaves is caused by the deficiency of:
A)Nitrogen
B)Calcium
C)Potassium
D)Iron

Answer 1

Hint: Chlorosis is the deficiency condition in which leaves of plants become yellow completely. Interveinal chlorosis of leaves is the disease in plants in which veins are green but the area between these veins is yellow.

Complete answer:
Interveinal chlorosis is the most common condition in plants which can affect houseplants, garden vegetables, landscape trees and shrubs.
Green pigment is present known as chlorophyll which is responsible for the photosynthesis and green colour of the plants. Chlorophyll molecule has a central atom of magnesium ion which is bonded by forming a chelate complex. Interveinal chlorosis occurs when production of chlorophyll reduces due to several environmental conditions.

Nutritional deficiency is the main cause of Interveinal chlorosis. As we know magnesium plays a central role in chlorophyll molecule but there are other ions like iron, Manganese and

Molybdenum are important for enzymatic action and if there is deficiency in any of these ions it may result in interveinal chlorosis and may results in poor flower and plant development and ultimately may lead to death of plant.
Nutritional deficiency in culturing soil is not the only reason, there may be root injury, poor root growth or excessive amounts of other nutrients.

Hence, the correct answer is option (D)

Note: Photosynthesis is the process by which plants prepare their food that is carbohydrates from carbon dioxide present in the atmosphere, using sunlight and water. It also produces oxygen as a by-product of this process.