Which of the following crops were not covered under the "Green Revolution"?

All of the above

The credit of green revolution in India is given to the Agriculture Scientist Dr. Norman Borlaug. However, the contribution of Dr. M.S. Swaminathan is not less. The revolution did not cover barley, ragi and minor- millets and was confined only to High Yielding Varieties (HYV) mainly rice, wheat, maize and jowar.