ArticleScientific reports2026
Varietal development and rice yield growth in India: assessing IRRI's germplasm contribution.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study analyzed the contribution of International Rice Research Institute (IRRI) improved germplasm to rice varietal development and yield growth in India. Out of the total of 1436 released high-yielding varieties (HYVs) of rice, 769 (53%) were developed using IRRI improved germplasm at different stages of the breeding cycle. IR8 alone was used 245 times during this period. Most of IRRI's elite lines were used for the improvement of important varietal traits, such as short duration and resistance to biotic stresses. The share of IRRI elite germplasm in all HYVs released in India was 22.8%. The average rice area withIRRI improved germplasm was 16.6% of the total rice area per year from 1966 to 2021. In addition, 11% of rice yield growth was contributed by IRRI improved germplasm each year for the 1966-2021 period. The results indicate that the IRRI-India partnership in germplasm exchange has contributed immensely to rice improvement in India. However, this contribution started declining after 2005, probably due to the strengthening of the national rice research system in India.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.