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The term 'The Green Revolution' has been used by the popular press to describe the spectacular increase in cereal - grain production during the past years. Perhaps the term 'green revolution'. as commonly used is premature, too optimistic, or too broad in scope. Too often it seems to convey the impression of a green revolution in yields per hectare and in total production of all crops throughout vast areas comprising many countries. Sometimes it also implies that all farmers are uniformly benefited by the breakthrough in production.

These implications both oversimplify and distort the facts. The only crops which have been appreciably affected upto the present time are wheat, rice and maize. Yields of their important cereals, such as sorghums, millets and barley, have been only slightly affected; nor has there been any appreciable increase in yield or production of the pulses or legume crops which are essential in the diets of cereal-consuming populations. Morever it must be emphasized that thus far the great increase in production has been in irrigated areas. Nor have all cereal farmers in the irrigated areas adopted and benefited from the use of the new seeds and the technology. Nevertheless, the number of farmers small as well as large who are adopting the new seeds and new technology is increasing very rapidly, and the increase in numbers during the past has been phenomenal. Cereal production in the rainted areas still remains relatively unaffected by the impact of the green revolution, but significant change and progress are now becoming evident in several countries.

Despite these qualifications, however tremendous progress has been made in increasing cereal production in India, Pakistan, and the Philippines during the past. Other countries that are beginning to show significant increase in production include Afghanistan, Sri Lanka, Indonesia, Iran, Kenya and Thailand. There are other countries like Tunisia and Turkey who have witnessed great increase in production.