Question

The basic principle of aeroponics includes

• A. Growing plants in a suspended or closed environment.
• B. Growing plants by callus culture.
• C. Growing plants in the presence of growth hormones.
• D. None of the above.

Answer 1

The correct option is A Growing plants in a suspended or closed environment.

Aeroponics is a method of growing plants with their roots suspended in the air in a grow chamber. The chamber contains the water-based solutions that is used to promote healthy growth in the plants. Water is pumped from the reservoir into the mirco-jet nozzles which distribute the nutrient solution to the roots at definite intervals. This is an enclosed system i.e. whatever does not get absorbed by the roots falls back down into the solution chamber and gets cycled through again. The microbes on the plant are in an oxygen-rich environment. This allows the microbes time to digest the nutrients and to make them immediately available for the plant’s use. Well-circulating CO2 in the room also enhances growth. Thus the correct answer is option A.