The Green Revolution: the HYV package, institutions and the crop calendar

Detail

1. What the Green Revolution was

• Green Revolution: a large rise in food-grain output, mainly of wheat and rice. It came from using high-yielding variety (HYV) seeds together with fertiliser, pesticide and irrigation. NCERT covers it in Class 11, Indian Economy 1950–1990.
• Why India needed it:
• In the colonial period, farm output stagnated. Yields per hectare stayed low (NCERT, Class 11, ch. 1).

• After 1947, India still imported food, mostly as US aid under PL-480. Two droughts in 1965-66 and 1966-67 made the shortage worse.

• The term "Green Revolution" was first used by William Gaud of USAID in 1968.

• Scale of the result:
• India's wheat output rose from 12 million tons (1964) to 20 million tons (1970) [3].
• By 1971, India was self-sufficient in food [3].

• By the late 1970s, India was one of the world's largest farm producers [3].

• Today: food-grain output reached a record 357.73 million tonnes in 2024-25. This included record rice output of 150.18 million tonnes and record wheat output of 117.95 million tonnes [5].

2. The HYV package: seeds plus inputs

• High-yielding variety (HYV) seeds: seeds bred to give a much higher yield per hectare than traditional seeds.
• The catch: HYVs only perform when the other inputs are also there. The package is:
• the right doses of chemical fertiliser;
• pesticide, because HYV crops are more prone to pest attack;

• assured irrigation, meaning water every time the crop needs it, not only when rain comes.

• NCERT says that "the application of these inputs in correct proportions is vital".

• Consequence: at first, only some farmers benefited.
• HYVs needed reliable irrigation and money to buy inputs.
• Farmers with larger holdings, tubewells and access to credit adopted them first.
• Small and rain-fed farmers were left behind at first. The gap between regions also grew, with Punjab, Haryana and western UP moving ahead of others.

3. Where the seeds came from

• Wheat:
• Norman Borlaug bred semi-dwarf wheat in Mexico [4].
• Borlaug is called the "father of the Green Revolution" and won the Nobel Peace Prize in 1970 [4].

• Varieties sent to India included Lerma Rojo 64-A and Sonora 64, imported in 1965-66.

• Why dwarf stems matter:

• When fertiliser is added, the ear of grain becomes heavy.
• A tall traditional plant then falls over. This is called lodging, and it ruins the crop.

• A short, stiff stem holds the heavy grain upright. So the plant can turn more fertiliser into grain.

• Scale-up in India: in 1966, M.S. Swaminathan persuaded the government to buy 18,000 tons of these Mexican high-yielding seeds [3]. Britannica marks this as the birth of India's Green Revolution [3].

• Rice: IR8, from the International Rice Research Institute (IRRI), Philippines, was released in 1966. It was a semi-dwarf rice often called "miracle rice".

4. Indian architects and programmes

• M.S. Swaminathan: the scientist who worked with Borlaug in the early 1960s. He tested the Mexican wheats under Indian conditions and found them high-yielding and disease-resistant [3]. He is called the "father of India's Green Revolution" [3].
• C. Subramaniam: Union Agriculture Minister from 1964 to 1967. He gave the political push to import seed and to set up support institutions.
• The programmes, in order:

Programme	Year	What it did
IADP (Intensive Agricultural District Programme)	1961	A package approach in a few selected districts: credit, seed, fertiliser and extension given together
IAAP (Intensive Agricultural Areas Programme)	1964	Extended the intensive approach to more areas
HYVP (High Yielding Varieties Programme)	Kharif 1966	Spread HYV seeds with their full input package

• Trap: IADP (1961) came before HYV seeds. It was a package of inputs for traditional seeds. HYVP (1966) is the programme that spread HYV seeds.

5. Institutions behind the Green Revolution

• Research: creating new seeds and methods. Extension: taking that knowledge to farmers through field staff, demonstrations and training.
• Both were crucial to the Green Revolution.

• NCERT notes that both were hit by lower government spending after the 1991 reforms.

• ICAR (Indian Council of Agricultural Research): the apex body for farm research and education.

• State agricultural universities (SAUs) followed the US land-grant model, which put teaching, research and extension in one university.
• Pantnagar (1960), the first SAU, in Uttarakhand (then part of UP).

• PAU Ludhiana (1962), Punjab.

• National Seeds Corporation (1963): multiplies breeder seed into large amounts and distributes it.

• Food Corporation of India (FCI, 1965): buys grain from farmers (procurement), stores it, and supplies it to the PDS.
• Agricultural Prices Commission (APC, 1965): recommends minimum support prices (MSP). It is now the CACP (Commission for Agricultural Costs and Prices).
• Why this mattered: a guaranteed price gave farmers the confidence to spend on costly inputs.

• Details are in the agri-marketing-msp-pds note.

• Rural electrification powered tubewells. Tubewells gave the assured irrigation that HYVs need.

• Farm mechanisation: tractors, threshers, harvesters and pumpsets doing work that humans and animals used to do.
• It spread with the Green Revolution.
• It sped up harvest and sowing, which made room for a second crop in the same year.

6. Two key metrics

• Crop yield = output ÷ area, in kg or tonnes per hectare. It is the basic measure of land productivity.

• Worked example: 40 tonnes of wheat from 10 ha gives a yield of 4 t/ha.

• Seed replacement rate (SRR) = (area sown with certified or quality seed ÷ total area under the crop) × 100, for one season.

• Worked example: 30 ha of a 100 ha paddy area sown with certified seed, the rest with farm-saved seed. SRR = 30%.
• Why it matters: farm-saved HYV seed loses vigour and purity over time. A higher SRR means more of the HYV's full yield is reached.

7. Multiple cropping and the crop calendar

• Multiple cropping: growing two or more crops on the same field in one year.
• How the Green Revolution made it possible:
• HYVs mature faster (short duration), so fields are free sooner.
• Irrigation removes the dependence on the monsoon.
• The result in Punjab-Haryana was kharif paddy followed by rabi wheat, often with a zaid crop in summer.

Season	Sown / harvested	Examples
Kharif crops	Sown with the south-west monsoon (June-July); harvested Sept-Oct	Rice, maize, cotton, soybean
Rabi crops	Sown in winter (Oct-Dec); harvested in spring	Wheat, mustard, gram, barley
Zaid crops	Short summer crops between rabi and kharif	Watermelon, cucumber, vegetables, fodder

• Trap: wheat was the Green Revolution's star crop, and wheat is a rabi crop. Rice is kharif.

8. NSA, GCA and cropping intensity

• Net sown area (NSA): the area sown with crops and orchards. Land sown more than once in a year is counted only once [2].
• Gross cropped area (GCA): the total area sown. Land sown more than once is counted as many times as it is sown.
• Cropping intensity = (GCA ÷ NSA) × 100. It shows how many times the same land is cropped in a year. It is the same ratio MoSPI uses [2].
• Worked example: NSA = 100 ha. 60 ha of it is double-cropped. GCA = 100 + 60 = 160 ha. Cropping intensity = 160/100 × 100 = 160%.

• A value of 100% means every field grows one crop a year. A value of 200% means every field grows two.

• India's trend:

• 1950-51 to 2006-07: GCA rose from 132 to 194 million ha. The main reason was higher cropping intensity, from 111% to 138% [2].
• Over the same period, area sown more than once rose from 13 to 53 million ha [2].
• Latest: cropping intensity was 155.4% as per Land Use Statistics 2021-22 [6] (NCERT scaffold: "about 155%").

• Total cropped area rose from 201.18 to 219.16 million ha in recent years [7].

• NSA has hit a ceiling.

• NSA stayed between 140 and 141 million ha from 1970-71 to 2006-07, which is about 46% of the reporting area [2].
• From 1988-89 to 2018-19 it stayed at about 140 million ha, while GCA grew from 182.28 to 196.50 million ha [6].
• So future output must come from higher cropping intensity and higher yields, not from more land.

Prelims Hooks

• Cropping intensity = (GCA ÷ NSA) × 100. Land sown twice is counted once in NSA and twice in GCA.
• Cropping intensity rose from 111% (1950-51) to 155.4% (2021-22) [2][6]. NSA stayed at about 140 million ha.
• IADP 1961 → IAAP 1964 → HYVP kharif 1966. IADP came before HYV seeds.
• IR8 rice came from IRRI, Philippines (1966). Lerma Rojo 64-A and Sonora 64 were Borlaug's Mexican wheats.
• The term "Green Revolution" was coined by William Gaud (USAID), 1968. It was not coined by Borlaug or Swaminathan.
• C. Subramaniam was the Agriculture Minister (1964-67). M.S. Swaminathan was the scientist.
• FCI and the APC were both set up in 1965. The APC is now the CACP. The National Seeds Corporation dates from 1963.
• Pantnagar (1960) was the first state agricultural university. PAU Ludhiana followed in 1962. Both follow the US land-grant model.
• Semi-dwarf stems prevent lodging (the plant falling over) under heavy fertiliser use.
• Seed replacement rate is the share of crop area sown with certified or quality seed, as opposed to farm-saved seed.

Mains Points

• The Green Revolution came as a package, not just a seed.
• HYVs only worked with the right inputs in the right proportions, plus irrigation, credit, MSP and procurement.
• This explains its successes: food self-sufficiency by 1971 [3], and a record 357.73 million tonnes in 2024-25 [5].

• It also explains its limits. Gains went first to irrigated, better-off farmers and to a few regions. This fed inequality across farmers and across regions.

• With little new land left, growth must come from each hectare.

• NSA has been stuck at about 140 million ha [2][6].
• So growth has to come from cropping intensity (155.4% in 2021-22 [6]) and yields.

• That calls for more irrigation, short-duration varieties, a higher seed replacement rate, and renewed research and extension. These last two lost funding after 1991.

• The paddy-wheat cycle has a cost.

• Double-cropping in Punjab-Haryana, supported by MSP, free power and fertiliser subsidies, drains groundwater and damages soil.
• It also leads to stubble burning.

• This links to the present debate on crop diversification and on reforming farm subsidies (GS-III).

• Institutions made the Green Revolution possible. ICAR, the SAUs, NSC, FCI and the APC show how state capacity turns technology into results. This is a lesson for a "second Green Revolution" in rain-fed and eastern India.