·The Hindu·15 marks·250–350 words

Developing climate-resilient varieties is necessary but not sufficient for climate-proofing Indian agriculture. Discuss.

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In this answer
  1. Why resilient varieties are necessary
  2. Why varieties alone are not sufficient
  3. Way forward

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

  1. 1PIB / Lok Sabha reply, "Development of Climate-Resilient Paddy Varieties" (Dec 2024)NICRA yield-loss projections; 668/199 varieties; DRR Dhan 42/44
  2. 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
  3. 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
  4. 4FAO, Alternate Wetting and Drying practice briefAWD water saving of up to 30% and lower methane
  5. 5World Bank Group Academy, Low-Methane Rice / Scaling NextGen Ricescaling sustainable rice methods for Asian smallholders
  6. 6ECOLEX (FAO–IUCN–UNEP), Kerala Conservation of Paddy Land and Wetland Act recordstatutory ban on paddy-land conversion

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