PIB TrackerFour moth bean varieties held 35 rainless days, and no yield is reported
ICAR-CAZRI says its four released moth bean varieties kept flowering and podding through a 35-day rainless spell in Kharif 2026, but it publishes no yield and names no comparison variety.
What happened
- ICAR-CAZRI, Jodhpur reported the field performance of four moth bean varieties - CAZRI Moth-4, 5, 6 and 7, released in the last three years - during Kharif 2026, which the release calls the current El Nino year.
- Rainfall ceased after the event of 3 August 2026; the spell to 7 September 2026 ran 35 days, broken only by three to four showers of under 2.5 mm each.
- Cumulative pan evaporation was about 317 mm from 10 July to 2 September 2026 and about 180 mm within the 35-day spell.
- Soil moisture at 0-10 cm fell from 15-16 per cent (v/v) to 5-6 per cent, while the 10-40 cm layer fell from about 23 per cent to 16 per cent.
- Seed is being multiplied on seven hectares at the CAZRI Research Farm against a Saathi Portal indent of 23.32 quintals for 2026, against 63.2 quintals indented in 2025.
For Prelims
- Moth bean: a pulse of the hot arid regions of western Rajasthan, grown on nearly 10 lakh hectares at a productivity of about 350 kg per hectare.
- CAZRI: the ICAR-Central Arid Zone Research Institute, Jodhpur, which has released four moth bean varieties in the last three years.
- The four varieties: CAZRI Moth-4, CAZRI Moth-5, CAZRI Moth-6 and CAZRI Moth-7, out of a breeding and genetic improvement programme of more than a decade.
- Arid rainfall regime: 150-250 mm, with dry spells of 20-30 days; the Kharif 2026 spell ran 35 days, from 3 August to 7 September 2026.
- Pan evaporation: about 317 mm over 10 July-2 September 2026, of which about 180 mm fell inside the 35-day rainless spell.
- Developmental plasticity: flowering at about 30 days after sowing and adjusting growth and maturity to available soil moisture; pods were recorded at about 55 days after sowing.
- Saathi Portal: the channel through which seed was indented - 63.2 quintals for the four varieties in 2025 and 23.32 quintals for 2026, met from seven hectares of seed production.
- Breeder to certified seed: one quintal of breeder seed yields about 1,000-1,400 quintals of certified seed, enough for about 10,000 hectares of cultivation.
For UPSC: A concrete case for climate-resilient agriculture answers: a public breeding institute, a named arid-zone pulse, and a season in which the moisture stress was documented rather than assumed. It doubles as a seed-systems example, tracing the chain from breeder seed on seven hectares through certified seed to projected acreage. Use it carefully, because the performance evidence offered is observational rather than a measured yield.
What it is NOT: No yield figure is given for any of the four varieties in Kharif 2026 and no check or comparison variety is named, so the 350 kg per hectare is the crop's general productivity, not a comparator result. The release covers one season on the institute's own experimental fields, names no second site and no releasing or notifying authority for the four varieties, states no replication or test of significance, and gives no area actually sown to these varieties - the 25 per cent of Rajasthan's moth bean area is an arithmetic projection off seed-multiplication potential, not an achieved figure.
For Mains
Syllabus: GS3.4 · GS1.12 · Linkage L2
Anchor
Climate-resilient agriculture is usually argued from projections; here it is argued from a season. Western Rajasthan's moth bean crop, on nearly 10 lakh hectares at about 350 kg per hectare, met a 35-day rainless spell in Kharif 2026, and a public institute recorded what four of its own released varieties did while the soil dried.
Substantiation (data)
The stress is quantified: pan evaporation of about 317 mm from 10 July to 2 September 2026, about 180 mm of it inside the 35-day spell from 3 August to 7 September; surface moisture at 0-10 cm down from 15-16 per cent by volume to 5-6 per cent; the 10-40 cm layer down from about 23 per cent to 16 per cent.
Exemplification
The mechanism has a name and a clock. These varieties begin flowering at about 30 days after sowing and adjust growth and maturity to the moisture they find, which the release calls developmental plasticity. Sown at monsoon onset in July at 45 x 10 cm, they had built canopy before the rain stopped, and were bearing pods at about 55 days.
Problematisation
The evidence stops short of the number that would settle it. Resilience is reported as green appearance, good growth and profuse pod development, which is observation rather than measurement. No yield is published for any of the four varieties, no check variety is named, no second site or second season appears, and no replication or test of significance is stated.
Counterpoint
The seed chain is where adoption is decided, and the indent has fallen rather than risen. Through the Saathi Portal the four varieties drew 63.2 quintals in 2025 and 23.32 quintals for 2026, met from seven hectares at the institute's own farm, with Rajasthan State Seeds Corporation, the National Seeds Corporation and selected private players multiplying.
Position
Breeding is the cheaper half of climate adaptation and the seed system is the harder half. The release concedes as much: the ICAR Director General says a package of practices - plant population, sowing date, weed and moisture management - is what lets genetic potential appear. A variety covering a quarter of the State's area stays arithmetic until the certified seed exists.
Deploys into: Climate-resilient agriculture and crop breeding (GS3.4, GS1.12) · El Nino, monsoon dry spells and rainfed arid farming · seed systems from breeder seed to certified seed and varietal adoption · judging a resilience claim advanced without a yield figure
Ministry of Agriculture & Farmers Welfare · 2026-09-13 · PRID 2309690 · PIB source ↗