Why were the wheat growing states benefitted from the Green Revolution?

The Green Revolution refers to the large increase in production of food grains resulting from the use of high yielding variety (HYV) seeds, especially for wheat and rice.

The use of high-yielding variety seeds especially for wheat and rice required the use of fertilizers and the pesticide in the correct quantities as well as regular supply of water. The need for these inputs in correct proportions is essential. The farmers who could benefit from HYV seeds required reliable irrigation facilities as well as the financial resources to purchase fertilizers and pesticides. In the first phase of the Green Revolution, the use of HYV seeds was restricted to the more prosperous states such as, Punjab, Andhra Pradesh and Tamil Nadu. The use of HYV seeds primarily benefited wheat growing regions. In the second phase of the Green Revolution (Mid 1970 to mid 1980s), the HYV technology spread to a larger number of states and benefitted more variety of crops.