Developing climate-resilient varieties is necessary but not sufficient for climate-proofing Indian agriculture. Discuss.
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ICAR's NICRA project projects that if farmers do not adapt, rainfed rice yields could fall by 20% by 2050 and 47% by 2080. For irrigated rice the projected fall is only 3.5% and 5% [1]. Resilient seed is the first line of defence. But that gap shows water, land and institutions matter as much as genetics.
Why resilient varieties are necessary
- Breeding at scale: 668 rice varieties were released in 2014–24. Of these, 199 are extreme-climate resilient, including the drought-tolerant DRR Dhan 42 and 44 [1].
- Faster tools: the genome-edited DRR Dhan 100 (Kamala) and Pusa DST Rice 1 (May 2025) were made with CRISPR-Cas and add no foreign DNA [2]. Genome editing allows quicker, more targeted improvement of traits.
- Heat, floods and salinity are rising, so the crop itself must tolerate shocks.
Why varieties alone are not sufficient
- Seed-to-field gap: release counts do not show how much area is actually sown. Slow seed multiplication and repeat seed costs limit uptake among rainfed smallholders, who face the steepest losses [1].
- Water security: the gap between rainfed and irrigated losses shows that irrigation is itself climate insurance [1]. Irrigation coverage matters as much as better seed.
- Land-use stress: Kerala's Paddy Land and Wetland Act, 2008 bans conversion of paddy land [6]. Yet conversions and blocked drainage in places like Kuttanad make floods partly man-made. No seed can save a field that has been filled in.
- Mitigation trade-off: flooded paddies release methane. Alternate Wetting and Drying (AWD) cuts water use by up to 30% and also lowers emissions [4].
- Regulatory credibility: under the 2022 SOPs, the developer's own Institutional Biosafety Committee leads the review of SDN-1/2 plants [3]. Claims about yield and safety need independent checks before scale-up.
Way forward
- Track the area sown under resilient varieties, not just the number released. Plan seed multiplication at the time a variety is released.
- Offer seed together with AWD and direct-seeded rice through extension services, as in the World Bank–IRRI scaling of low-methane rice for Asian smallholders [5].
- Enforce wetland protection strictly and set up independent biosafety assessment.
Resilient varieties are the foundation, but climate-proofing needs a full package: seed systems, irrigation, land protection, low-emission practices and trusted regulation. Building this package under NICRA and the National Mission for Sustainable Agriculture would advance SDG 2 (Zero Hunger) and SDG 13 (Climate Action) together. Only then will resilient seed become resilient farming.
Sources
- 1PIB / Lok Sabha reply, "Development of Climate-Resilient Paddy Varieties" (Dec 2024)NICRA yield-loss projections; 668/199 varieties; DRR Dhan 42/44
- 2All India Radio (newsonair.gov.in), "Agriculture Minister Shivraj Singh Chouhan launches India's 1st genome-edited rice varieties" (May 2025)Kamala and Pusa DST Rice 1; CRISPR-Cas; no foreign DNA
- 3DBT, SOPs for Regulatory Review of Genome Edited Plants under SDN-1 and SDN-2 Categories (2022)IBSC-led review of SDN-1/2 plants
- 4FAO, Alternate Wetting and Drying practice briefAWD water saving of up to 30% and lower methane
- 5World Bank Group Academy, Low-Methane Rice / Scaling NextGen Ricescaling sustainable rice methods for Asian smallholders
- 6ECOLEX (FAO–IUCN–UNEP), Kerala Conservation of Paddy Land and Wetland Act recordstatutory ban on paddy-land conversion