Green Revolution

Green Revolution is a term that emerged in the 1960s to describe a rapid increase in agricultural production, particularly in wheat and rice yields, in developing countries. This process relied on the adoption of a technology package consisting of high-yielding seed varieties, fertilizers, controlled irrigation, and other chemical inputs. These new varieties did not yield more than traditional ones without fertilizer or controlled irrigation, but when the full package was implemented, they produced significantly higher yields per hectare. It is known that the success of this initiative depended technically on the complete application of the package, as the absence of any single component prevented the expected yield increases.

^{Farmers Examining High-Yield Wheat Before Research Facilities (Generated by Artificial Intelligence)}

Historical Development and Institutional Origins

The emergence of the Green Revolution is linked to widespread hunger and malnutrition in the 1960s, as food production in countries of the Global South failed to keep pace with population growth.

The technological roots of the Green Revolution lie in Western breeding techniques. The search for disease-resistant and high-yielding seeds was a major focus of research in Western countries during the 19th century. A variety regarded as the "father" of the Green Revolution wheat was developed in Japan in the 19th century. ^【1】 American agricultural engineer Norman Borlaug, while conducting research in northern Mexico under a Rockefeller scholarship, crossed the Japanese "Norin 10" with Mexico's traditional "Sonora" wheat to develop the high-yielding "Sonora 63". This work earned Borlaug the 1970 Nobel Peace Prize. ^【2】

^{Borlaug Examining High-Yield Wheat Seeds in the Field (Generated by Artificial Intelligence)}

The institutional infrastructure of the Green Revolution was largely financed and directed by American foundations.

• CIMMYT (International Maize and Wheat Improvement Center): Established in Mexico in 1963 as an expansion of a research program begun in 1943 by the Rockefeller and Ford Foundations. It focused on wheat and maize seed development. ^【3】

• IRRI (International Rice Research Institute): Founded in the Philippines in 1962 with funding from the Rockefeller and Ford Foundations and USAID (United States Agency for International Development). It developed high-yielding rice varieties. ^【4】

• ADC (Agricultural Development Council): Established in 1953 by J. D. Rockefeller III. The council aimed to train a local elite of agricultural economists and administrators in developing countries who could guide agricultural policy. ^【5】

Management of these centers was later transferred to CGIAR (Consultative Group on International Agricultural Research). Their funding comes from international organizations such as the World Bank as well as bilateral aid programs from countries including the United States, Canada, and Japan.

Some analyses interpret the development of the Green Revolution as part of U.S. foreign policy strategy aimed at directing social and economic development in the Third World, creating new markets for investment and sales, and preventing rural and urban unrest caused by rising hunger and poverty. According to this view, the U.S. modification of its P.L. 480 (food aid) program in 1965 to tie assistance to agricultural development, population control, and opening doors for U.S. investors directed countries such as India—during the 1965–66 famine—to adopt Green Revolution technologies and associated foreign capital.

Green Revolution technologies were first widely implemented in Pakistan and India.

• India: A grain importing country at the beginning of the 1960s, it doubled its production within a few years and became self-sufficient by the 1970s. Wheat production in the Punjab state increased eightfold over twenty years. The area devoted to high-yielding seeds nationwide rose from 15.4 million hectares in 1970–71 to 52.5 million hectares in 1983–84, representing approximately 90 percent of the country's irrigated agricultural land. ^【6】

• Mexico: Thanks to new wheat and maize varieties, agricultural production increased at an average annual rate of 9 percent between 1960 and 1965. By the early 1960s, Mexico had achieved self-sufficiency in wheat. ^【7】

• Other Countries: Pakistan began with 50 tons of seed in 1966–67 and imported 42,000 tons of high-yielding seed the following year. Rice production in the Philippines and Indonesia increased by more than 3 percent annually between 1961 and 1980. The technology was also applied in Brazil, Iran, Algeria, and to a limited extent in Türkiye. ^【8】

By the 1980s, it was estimated that one-third to half of the rice-growing areas in the developing world were planted with high-yielding varieties. In 11 Asian countries, this proportion ranged from 9 percent (Thailand) to 78 percent (Philippines). It was estimated that annual production increases in Latin America amounted to approximately 2.5 million tons. The area under modern wheat varieties was estimated at 35 million hectares for the 1982/83 period. These technologies were later extended to other food crops such as maize, sorghum, cassava, and beans. ^【9】

The success of the Green Revolution depended on the presence of certain preconditions. For example, its widespread adoption in India’s Punjab state was based on extensive irrigation systems built during the British colonial period and on farmers’ financial resources and market-oriented traditions. Similarly, Mexico’s success was linked to state-supported irrigation channels developed on large and modern farms.

Reasons for the technology’s failure to spread universally include dependence on industrial inputs such as chemical fertilizers and pesticides, difficulties in expanding irrigated land, foreign exchange shortages needed to import inputs, and the inability to implement land reforms. For instance, in Mexico, the 9 percent annual agricultural production growth between 1960 and 1965 fell to 1 percent between 1975 and 1980.

India was able to sustain implementation due to strong state financial and technical support. The state supported large irrigation investments as well as small-scale irrigation through bank credit. The area under irrigation rose from 30 million hectares before 1970 to 60 million hectares by the mid-1980s. Domestic production of fertilizers and pesticides was prioritized, and support prices were applied to incentivize farmers to adopt modern inputs. ^【10】

Poor countries in Africa largely remained outside this application. Between 1960 and 1980, agricultural production growth in Africa did not exceed 2 percent, while it surpassed 3 percent in East Asia and Latin America. ^【11】 Reasons include the incompatibility of developed high-yielding wheat and rice varieties with tropical climates, the failure to develop similar varieties for Africa’s staple crops such as tubers and millet, agricultural policies that did not incentivize production (such as state-set low prices), and inadequate marketing infrastructure.

The outcomes of the Green Revolution varied depending on the interaction between the technology and the institutional and political context in which it was applied. Some argue that the technology itself is not responsible for negative developments caused by inappropriate institutions and policies.

The technology was designed to maximize yields on the most productive, irrigated lands, contributing to increased regional disparities:

• Mexico: New varieties were concentrated in irrigated northwestern regions, leaving the rest of the country, where most of the population lived, almost unaffected.

• India: Northern states such as Punjab, with concentrated irrigation infrastructure, benefited significantly.

• Pakistan: The technology succeeded in irrigated West Pakistan but achieved almost no success in East Pakistan (later Bangladesh), which relied on flood-based irrigation. It is known that this disparity deepened economic differences between the two regions and contributed to regional tensions.

The differential impact of the Green Revolution across socioeconomic classes has been a central focus of analysis.

Initial studies concluded that large farmers primarily benefited from the technology, increasing income and wealth inequality and worsening rural poverty. According to A. Nonjon’s observations in India, beneficiaries were large landowners with access to suitable irrigated land, financial means to purchase modern inputs, and technical knowledge.

Later studies challenged these early findings, arguing that the fact that early adopters were large farmers did not mean small farmers rejected the technology. Instead, small farmers rapidly adopted it as uncertainty decreased. Subsequent evidence showed that high-yielding varieties were widely adopted regardless of farm size or land tenure, and in some cases, net returns per hectare tended to be higher on small farms. According to this view, the decisive factor was not farm size but access to optimal production conditions such as irrigation. In India, the number of beneficiary farmers rose from 106,000 in 1980 to 5 million by 1984 due to state efforts to expand the program. ^【12】

Other studies noted that while adoption rates of new seeds were similar, wealthier farmers used complementary inputs (fertilizers, pesticides) more intensively, creating significant income inequality. In Punjab, India, high profits led to land price increases of up to 500 percent, prompting landowners to acquire more land and convert tenants into wage laborers to reduce costs. ^【13】

Green Revolution technology increased labor demand in some cases by enabling higher productivity and multiple cropping cycles per year. However, rising profits and state subsidies encouraged farmers to invest in mechanical equipment such as tractors, harvesters, and threshers. The net effect of this mechanization was generally labor-displacing (labor-saving). For example, in South Asia, tractors were found to replace labor without significantly increasing productivity or planting density. This offset the employment gains from the seed-fertilizer package, increased rural unemployment, accelerated migration to cities, and contributed to the growth of urban slum populations.

The production increases driven by technological change lowered food prices below what they otherwise would have been, benefiting consumers. Low-income consumers, who spend a larger share of their income on staple foods, gained relatively higher real income from these price declines.

Additionally, indirect (multiplier) effects of agricultural growth were identified. In India, a 1 percent increase in agricultural output was found to stimulate a 0.5 percent increase in industrial production and a 0.7 percent increase in national income. This effect stemmed largely from increased household consumption spending, which generated employment in rural non-agricultural sectors (transport, services, etc.) and contributed to the incomes of landless laborers and small farmers.

The Green Revolution created large markets for multinational corporations producing seeds, fertilizers, pesticides, and farm equipment. Companies such as ESSO, Ciba, and Mitsubishi, originating in the United States, Japan, or Western Europe, became active promoters of the technology and established monopolistic markets for the production and distribution of modern inputs. Lester Brown cited ESSO’s program in the Philippines, which established 400 trading centers not only for fertilizers but also for seeds, pesticides, and equipment. However, it was reported that these profit opportunities were not as large as anticipated; for example, ESSO later sold its Philippine network due to low profits. ^【14】

While the Green Revolution increased average food production, it also increased variability around national production trends, leading to more unstable prices. The primary cause of this increased fluctuation was not individual farm yield variation (less than 10 percent) but the increased tendency for yields across different states or regions to move together (higher covariances). This is believed to stem from the genetic similarity of widely planted new varieties. The 1970 outbreak of Helminthosporium maydis (Southern Corn Leaf Blight) in the United States and the 1971 rice virus disease in the Philippines are cited as examples of this genetic uniformity risk. Additionally, irregular supply of inputs such as electricity for fertilizer or irrigation pumps further intensified this effect by causing simultaneous yield declines across large areas.

Early studies on the Green Revolution largely ignored the role of women. However, women played a key role in providing the additional labor required by technological change. In rural areas, poor women already had heavy workloads, and labor-saving technologies targeting traditional women’s tasks (such as hand weeding)—for example, chemical herbicides—could negatively affect their employment. Moreover, many small farms are managed by women, and shifts in control over household income—from subsistence production under women’s control to cash crops under men’s control—have implications for household welfare and nutrition.

The Green Revolution had both positive and negative environmental impacts.

^{Cracked Soil and Fish Killed by Pesticide Pollution (Generated by Artificial Intelligence)}

High-yielding technology enabled greater production on existing farmland, reducing pressure to expand agriculture into marginal lands, forests, and pastures, thereby helping to limit land degradation and deforestation.

• Soil and Water: Intensive irrigation required by high-yielding varieties increased soil salinity in regions such as Pakistan and India, rendering land unusable. Heavy use of inorganic fertilizers caused eutrophication of rivers and lakes through surface runoff.

• Pesticides: Intensive pesticide use was required for new varieties. The broad-spectrum (non-specific) nature and insufficient testing of these chemicals led to outcomes such as poisoning of fish ponds in the complex ecosystems of tropical regions.

• Genetic Diversity: The rapid spread of a small number of high-yielding varieties created overly simplified ecosystems and reduced genetic diversity at the farm level. This necessitated the conservation of genetic material elsewhere, such as in gene banks.