Question

Culturing of plants in water/soilless medium is
A) Hydroponics
B) Sand culture
C) Aeroponics
D) Soilless culture

Answer 1

Culturing of plants is an important technique to maintain tissues or whole organs under sterile conditions in a medium whose concentration is known. This is helpful for plants since a lot of energy is required for the roots to search for food and water for the plant’s survival. So having an available source of nutrients helps plants to grow at fifty percent higher rates than the usual rate.

Complete answer:
Hydroponics is the method of growing plants without soil using nutrients in the form of aqueous solvent. Hydroponics has gained importance mostly because it reduces the water requirement of plants and also increases the plant growth rate. Hydroponics are mainly of two types- static solution culture where the plants are grown in jars containing the nutrient solution and care is taken to maintain the level of solution so that they do not go below the roots. If such a situation occurs the root will not get nutrients and the plant will cease to grow. The second type is continuous-flow solution culture where the nutrient solution constantly flows across the root. This technique is favoured over the static one because plants get more amount of oxygen, water and nutrients through this method.

So the correct answer is option (A) Hydroponics.

Note: Thus hydroponics provides us with an easier approach to grow plants specially for those plants that grow on soils that are low in nutrients and water helping in the survival and growth of the species.