Patterns in paddy

1. At a Glance

• The topic: paddy (rice) farming in India is under growing stress from climate change. The main threats are rising temperatures, erratic monsoon rainfall, floods, drought, and more pest and disease attacks, all of which cut yields. Keralam is cited as especially vulnerable [1].
• Why it matters: the projected losses are steep for rainfed rice, at −20% by 2050 and −47% by 2080 if farmers do not adapt. Irrigated rice is far less exposed [2]. This is the core of the food security vs climate adaptation question in GS-III.
• Two policy responses are being tested: conventional breeding of climate-resilient varieties [2], and the newer genome-edited (CRISPR-Cas, SDN-1/2-type, no foreign DNA) rice [3]. The genome-edited rice raises questions of science, regulation and seed sovereignty [5][6].

2. Why in the News

• The Hindu photo feature "Patterns in paddy" (Chennai edition, 23 October 2026, page 15): it shows workers sun-drying harvested paddy at a stockyard in Palakkad, Keralam. The caption says climate change is a "serious threat" to paddy farming in India, particularly Keralam [1].
• Ongoing debate (2025–26): the Centre's yield and early-maturity claims for India's first genome-edited rice varieties, released in May 2025, have been challenged using ICAR trial data [3][5].

3. Background & Evolution

• NICRA: ICAR's National Innovations in Climate Resilient Agriculture project produced the official estimates of climate-driven rice yield losses [2].
• Breeding drive, 2014–2024: 668 rice varieties were developed in this period, and 199 of them are classed as extreme-climate resilient [2].
• Drought-resilient releases: ICAR-IIRR (Indian Institute of Rice Research, Hyderabad) released DRR Dhan 42 and DRR Dhan 44 [2].
• May 2025: Union Agriculture Minister Shivraj Singh Chouhan announced two genome-edited rice varieties, the first of their kind developed in India [3]:
• DRR Dhan 100 (Kamala)

• Pusa DST Rice 1

• Kerala-specific research: studies have called for Kerala to adopt heat-tolerant rice varieties to protect yields [4].

4. Core Static Facts

Item	Fact
Projected rainfed rice yield loss without adaptation	20% (2050); 47% (2080) [2]
Projected irrigated rice yield loss	3.5% (2050); 5% (2080) [2]
Source of these projections	ICAR's NICRA project [2]
Rice varieties developed, 2014–24	668, of which 199 are extreme-climate resilient [2]
Drought-resilient IIRR varieties	DRR Dhan 42, DRR Dhan 44 [2]
Genome-edited rice varieties (May 2025)	DRR Dhan 100 (Kamala), Pusa DST Rice 1 [3]
Technology used	CRISPR-Cas genome editing; precise changes without adding foreign DNA [3]
Nodal ministry	Ministry of Agriculture & Farmers' Welfare / DARE–ICAR [2][3]
Climate stressors named in the news trigger	Heat, erratic monsoon, floods, drought, pests and disease [1]
Location in the news photo	Palakkad, Keralam (a major paddy district of the state) [1]

5. Multi-Dimensional Analysis

Economic

• Rice yield losses directly threaten farm incomes and the government's procurement and buffer stocks.
• The gap between rainfed and irrigated losses (20–47% vs 3.5–5%) [2] shows that irrigation coverage is itself a form of climate insurance.
• Seed-licensing costs matter because the CRISPR-Cas technology is patented by US and other multinational firms. This could raise costs and create dependency [6].

Environmental

• Several stresses are hitting at once: heat, floods, drought and pest outbreaks [1].
• Heat stress in particular calls for heat-tolerant varieties in states like Kerala [4].
• Choosing which varieties to grow is now a matter of climate adaptation, not just yield.

Scientific / Technological

• Conventional breeding has delivered 199 extreme-climate-resilient varieties in a decade [2].
• Genome editing makes targeted changes without transgenes, which distinguishes it from GM crops [3].
• Independent analysis of ICAR data reported no yield gain and no earlier maturity compared with the parent varieties. This contradicts the official claims [5].

Ethical / Governance

• Scientists have warned against premature release and called for independent biosafety assessment [5][6].
• Seed sovereignty is a concern because the core technology is patented by foreign firms [6].

Social

• Rainfed rice farmers, who are mostly smallholders, face the steepest projected losses [2]. Adaptation policy therefore has an equity dimension.

Administrative

• Having many varieties is not enough. Seed replacement and extension services must actually get resilient seed to farmers. Researchers argue that climate-resilient crops "need a stronger push" [7].

6. Recent Developments (last 12–18 months)

• May 2025: the Centre released DRR Dhan 100 (Kamala) and Pusa DST Rice 1 [3].
• 2025–26: an analysis of ICAR data questioned the claimed yield and maturity benefits of the genome-edited varieties [5].
• 2025–26: debate on licensing, IPR and biosafety of CRISPR rice continued [6].
• 23 October 2026: The Hindu feature highlighted climate threats to paddy, with a focus on Palakkad, Keralam [1].

7. Prelims Hooks

• NICRA projects a 20% (2050) and 47% (2080) fall in rainfed rice yields without adaptation [2].
• Irrigated rice losses are projected at only 3.5% (2050) and 5% (2080) [2].
• 668 rice varieties were developed in 2014–2024, of which 199 are extreme-climate resilient [2].
• DRR Dhan 42 and DRR Dhan 44 are drought-resilient varieties released by ICAR-IIRR [2].
• India's first genome-edited rice varieties are DRR Dhan 100 (Kamala) and Pusa DST Rice 1 [3].
• They were announced in May 2025 by Agriculture Minister Shivraj Singh Chouhan [3].
• They were developed with CRISPR-Cas and contain no foreign DNA, so they are not transgenic [3].
• NICRA is an ICAR project, not a MoEFCC scheme [2].
• Palakkad is a key paddy-growing district of Keralam [1].

8. Why Better Seeds Alone Cannot Save Keralam's Paddy

• Keralam is losing the paddy land itself, not just yield per hectare
• By 2003, the State Economic Review put Kerala's paddy area at about 3.10 lakh hectares. That was one-third of what it was in 1975 [11].

• So climate stress is hitting a base that was already shrinking. A heat-tolerant variety [4] cannot help a field that has been filled in and built on.

• The law bans conversion, but the state keeps making exceptions

• The Kerala Conservation of Paddy Land and Wetland Act, 2008 bans converting or filling in paddy land and wetlands [8].
• A later amendment let owners make illegal conversions done before 2008 legal by paying 25% of the land's fair value [8].
• The Act also allows conversion for a 'public purpose'. In Palakkad, the district shown in the news photo, a company wants to convert notified paddy land for an alcohol factory's rainwater pond. It calls the pond a 'public purpose', and local opponents dispute that [9].

• What this does: a farmer or builder learns that a conversion can later be made legal for a fee. That weakens the ban.

• In Kuttanad, flood risk is partly made by people, not only by climate

• Kuttanad is Kerala's 'rice bowl'. Much of it lies below mean sea level. It once worked as a natural store for floodwater [10].
• Road widening, blocked drainage and lost wetlands now leave paddy fields waterlogged [10].

• So part of the 'flood' stress named in the news [1] comes from land-use choices. A flood-tolerant seed treats the symptom. The drainage problem stays.

• What should follow

• The Kerala government should stop regularising conversions in notified paddy land. It should also define 'public purpose' narrowly, so that a factory pond does not qualify [8][9].
• Flood-control planning for Kuttanad should treat wetlands and drainage channels as protection for the paddy crop [10].

9. Is Genome-Edited Rice Ready? The Strongest Case For, and Its Limits

• The case for it is serious, and part of it is right
• Conventional breeding is slow. Genome editing can make a precise change to a known variety without adding foreign DNA [3].
• In 2022, the Environment Ministry exempted SDN-1 and SDN-2 plants from the strict GM rules (Rules 7–11 of the 1989 Rules under the Environment (Protection) Act), on the condition that they carry no foreign DNA [12][13]. SDN-1/SDN-2 means small edits to the plant's own genes, with no gene brought in from outside.
• When the varieties were launched, they were presented as raising yields by up to 30% [15]. If that holds, it is a fast way to fight the 20–47% losses projected for rainfed rice [2].

• Concede this: being 'not GM' is a real scientific difference. Opposing these varieties as if they were Bt cotton is a weak argument.

• Where the case breaks: the evidence, not the technology

• An independent analysis of ICAR's own trial data found no yield gain and no earlier maturity over the parent varieties [5].

• If the main benefit is not there, farmers carry the cost of new seed for no gain.

• Where the case breaks: who checks the safety

• Under the 2022 SOPs (standard operating procedures), the developer applies to its own Institutional Biosafety Committee (IBSC), a committee set up inside the research institution. The RCGM (Review Committee on Genetic Manipulation, under the Department of Biotechnology) then accepts the minutes [12].
• Critics point out that oversight now mostly sits with the developer lab's own committee, and the national regulator GEAC has a reduced role [14].

• What breaks: the body that made the rice is also the main body checking it.

• Honest verdict

• Genome editing deserves a place in India's adaptation toolkit. The 2025 release came before independent proof of benefit and independent safety review.
• What should follow: Down To Earth commentators propose an independent biosafety institute, separate from the developers, to test biotech crop claims before release [14]. ICAR should also publish the full multi-location trial data for Kamala and Pusa DST Rice 1, so the yield claims can be checked [5].

10. Why 199 Resilient Varieties May Never Reach the Farmer

• A variety on paper is not a seed in the field

• India developed 199 extreme-climate-resilient rice varieties in 2014–24 [2]. The official count stops at release. It does not show how many hectares are actually sown with them.

• The barriers are specific

• Time: after release, seed still has to be multiplied over several seasons before there is enough to sell [7].
• Unreliable yields: if a resilient variety yields less in a normal year, a farmer may not risk it as insurance against a bad year [7].

• Cost: hybrid seed must be bought again every few years, and prices go up once the introductory offer ends [7]. For a smallholder on rainfed land, the group facing the steepest losses [2], that is a real barrier.

• What should follow

• ICAR and state agriculture departments should track and publish the area sown with resilient varieties, not just the number released. That shows whether the breeding effort is reaching fields.
• Seed multiplication should be planned at the time a variety is released, so the gap between launch and supply gets shorter [7].

11. Rice Is Also a Cause: The Water and Methane Trade-off

• Irrigation protects rice, but flooded rice heats the planet
• The note shows irrigated rice loses only 3.5–5%, against 20–47% for rainfed rice [2]. Expanding irrigation looks like the obvious answer.

• But rice grown in standing water releases methane (a greenhouse gas many times stronger than CO₂ over the short term). Flooding also uses a lot of water. So more flooded rice adds to the climate problem it is meant to protect against.

• Alternate Wetting and Drying (AWD) is a tested middle path

• In AWD the field is allowed to dry for short spells instead of staying flooded all season.

• FAO material says AWD can cut methane from paddies by 30–50% and water use by up to 30% [16].

• But AWD is not automatic: there is a catch

• In a tropical field study, AWD cut methane by 73% under one way of handling crop stubble, but by less than 20% under another [17].
• In the same study, AWD raised nitrous oxide (N₂O, another greenhouse gas) by about 47–48% [17].

• Starting AWD 21 days after transplanting was too late, because the soil was already producing methane [17]. Timing and stubble handling decide the result. That needs trained extension workers, not just a leaflet.

• Direct Seeded Rice (DSR) is the other option

• In DSR, seed is sown directly in the field. There is no puddling (churning flooded soil) and no transplanting of seedlings, both of which use a lot of water and labour [18].

• Because the field is not flooded in the early weeks, methane is lower [18].

• What should follow

• ICAR's climate-resilient programme (NICRA) [2] and state extension services should promote resilient seed together with AWD and DSR, so that adapting to climate change does not raise emissions.
• The IRRI–World Bank 'Next Generation Rice' effort already treats AWD and DSR as ready to scale for smallholders in South Asia [18]. India can learn from it.

12. Anchors for Answers

• Data: Rainfed rice yield loss without adaptation projected at 20% (2050) and 47% (2080); irrigated only 3.5% and 5% (ICAR–NICRA) [2]
• Data: Kerala's paddy area had fallen to about one-third of its 1975 level (3.10 lakh ha) by 2003 [11]
• Data: AWD can cut paddy methane by 30–50% and water use by up to 30% [16]
• Report/Committee: MoEF&CC Office Memorandum, 30 March 2022, and SOPs for SDN-1/SDN-2 genome-edited plants (IBSC → RCGM review) [12][13]
• Law/Case: Kerala Conservation of Paddy Land and Wetland Act, 2008 (and the amendment regularising pre-2008 conversions for 25% of fair value) [8]; Rules 7–11 of the 1989 Rules under the Environment (Protection) Act, 1986 [13]
• Comparison: IRRI–World Bank 'Next Generation Rice' scaling AWD and DSR for smallholders across South and East Asia [18]
• Scheme: NICRA (ICAR) for climate-resilient varieties and projections [2]; genome-edited DRR Dhan 100 (Kamala) and Pusa DST Rice 1, whose claimed benefits are contested [3][5]

13. Mains Relevance

• GS-III, Agriculture: major crops and cropping patterns; e-technology in aid of farmers; food security. Science & Technology: biotechnology and IPR issues. Environment: climate change impacts and adaptation.
• GS-I, Geography: distribution of key crops; the effect of climate on agriculture.
• Possible question stems: 1. Climate change threatens rainfed rice far more than irrigated rice in India. Examine the reasons and suggest an adaptation strategy. (250 words) 2. Genome-edited crops are seen as a bridge between conventional breeding and GM technology. Critically evaluate India's 2025 release of genome-edited rice varieties. 3. Developing climate-resilient varieties is necessary but not sufficient for climate-proofing Indian agriculture. Discuss.

14. Related Topics to Study Next

• NICRA / climate-resilient agriculture: the source of India's official crop-vulnerability projections.
• GM vs genome editing (SDN-1/SDN-2 exemption, GEAC): the regulatory distinction behind the 2025 rice release.
• Bt cotton and the GM mustard (DMH-11) debate: precedent for disputes over biotech crops.
• National Mission for Sustainable Agriculture (NMSA): the policy umbrella for climate adaptation in farming.
• PM Krishi Sinchai Yojana: because irrigation sharply reduces climate losses in rice.
• Rice procurement, MSP and the PDS: the food-security consequences of falling yields.
• IPR and plant variety protection (PPV&FR Act, 2001): relevant to the seed-sovereignty and patent concerns.
• Kerala floods and paddy-wetland conservation: regional vulnerability and land-use change.

15. NCERT Concepts to Revise

• Climate change adaptation (Geography): The note's core theme: adjusting farming through resilient varieties and irrigation to cut climate losses.
• Genome-edited rice (Geography): The 2025 genome-edited varieties and the dispute over their yield claims are central to the note.
• Irrigated farming (Geography): Explains why irrigated rice loses only 3.5–5% while rainfed rice loses 20–47%.
• Plant variety protection (Economy): Covers breeders' and farmers' rights over seeds, relevant to the licensing and seed-sovereignty concerns.
• Food security (Economy): Falling rice yields threaten availability and access, the GS-III framing of the topic.
• National Mission for Sustainable Agriculture (Geography): The policy umbrella for climate-resilient farming, listed as a study-next topic.

16. Common Errors / Trap Areas

• Rainfed vs irrigated figures: the 20%/47% losses apply to rainfed rice. Irrigated losses are 3.5%/5% [2]. Examiners often swap these.
• Genome-edited ≠ GM: the 2025 varieties contain no foreign DNA [3]. Do not call them transgenic.
• Variety names: it is DRR Dhan 100 "Kamala" (IIRR) and Pusa DST Rice 1 (IARI-linked "Pusa" series). The drought-resilient pair is DRR Dhan 42/44, not the genome-edited ones [2][3].
• Counts: 199 extreme-climate-resilient varieties is a subset of the 668 total for 2014–24 [2]. Do not treat 199 as the total.
• Official claims vs independent data: the yield and early-maturity claims for the genome-edited rice are contested [5]. Present both sides in Mains answers.