Home
Class 11
BIOLOGY
Assertion: The technique of growing plan...

Assertion: The technique of growing plants in a nutrient solution is known as hydroponics
Reason: Hydroponics is used for commercial production of vegetables such as tomato, seedless cucumber and lettuce.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

if both assertion and reason are true but reason is not the correct explanation of assertion

C

if assertion is true but reason is false

D

if both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
B

The soilles production of plants is called hydroponics. Solution culture is used for raising soilless flowers and vegetables. Plants are raised in small tanks of concrete or metal. The upper covering has supports for plants. The narrow tanks are provided with nutrient solution a pump circulates air as well as nutrient solution. roots of the plants are therefore regularly provided with aerated nutrient solution hydroponics is useful in areas having thin. infertile and dry soils. out of season vegetables like tomato, seedless cucumber, lettuce and flowers can also be obtained using this techinque.
Promotional Banner

Similar Questions

Explore conceptually related problems

Assertion: Aquaponics is a technique which is a combination of aquaculture and hydroponics. Reason: In this system plant waste and decays are utilized by fishes as food

Hydroponics is a successful technique of growing plants but most of the crops are still grown on land ? Why ?

Assertion (A) : Tissue culture techniques are used for commercial production of plants. Reason (R) : Tissue culture techniques are used for plant research.

a. Growing fish or other aquatic animals and plants together in an integrated system. The fish wastes provides nutrients for the plants and the plants filter the water. Additionally bacteria break down by-products such as ammonia. b. Growing plants in a nutrient solution instead of soil. Fish kept in the water provide the required nutrients. Write the appropriate scientific terms for above (a) and (b) and differentiate between them.

Assertion : Single cell proteins can help to meet increasing demands of growing population. Reason : SCP now can be produced in high amount commercially, using low cost substrates.

Assertion: MS nutrient medium is commonly used in tissue culture. Reason: It has carbones sources,with suitable vitamins and hormones essential for plant growth.

Assertion: The rDNA technique involves the transfer of DNA coding for a specific gene from one organism into another using vectors. Reason: In the direct gene transfer methods the foreign gene of interest is delivered into the host plant without the help of a water.

Assertion (A) : EDTA rectify the iron deficiency in plants growing in alkaline soil. Reason (R ) : Have to make iron a soluble complex by addding a chelating agent like EDTA (Ethylene Diamine Tetra Acetic acid to form Fe-EDTA ) and its used to rectify iron deficiency.