Green revolution refers to an increase in the production of food grains, especially wheat crops. It has helped India to grow economically.

Main objectives of crop improvement include:

(i) Increase in the yield of crops.

(ii) To improve the quality of food crops.

(iii) To generate crops highly resistant to biotic and abiotic stresses.

(iv) To develop food crops with desired agronomic traits.

(v) To develop wider adaptability in food crops so that, they can withstand various environmental conditions.

(vi) To change the duration of maturity of food crops such that they mature uniformly.