Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
This variety was identified for release based on its exceptional performance in ICAR-AICRP
on Cotton Trials for 3 years across locations. This variety was recommended in the 84 th meeting
of Central Sub-Committee on Crop Standards, Notification and Release of Varieties for
Agricultural Crops on 13 th July 2022 and consequently the variety was notified in the Official
Gazette of Government of India via S.O. 4065(E) dated 31 st August 2022.
Conclusion
Field view, plant view, flower, green boll and open boll of the Bt variety – Samrat Bt
This new Bt cotton variety (Samrat Bt) is a medium staple variety, tolerant to jassids (major
sucking pest on cotton), early in maturity (140-150 days), suitable for HDPS and mechanized
harvesting of cotton. It combines good tolerance to pest and diseases. With early maturity,
Samrat Bt can help to Indian cotton farmers to escape from damage of pink bollworm, terminal
drought stress and also provide an opportunity for taking up second crop. This new Bt variety
can help cotton farmers in rainfed regions of south India achieve better productivity,
profitability and sustainability of cotton production.
References
Kranthi, K. R. and Stone, G. D. 2020. Long-term impacts of Bt cotton in India. Nat. Plants.
6(3): 188-196.
Singh, S. B., Venugopalan, M. V., Santosh, H. B., Raghavendra, K. P. and Balasubramani, G.
2021. Bt varieties for increasing cotton yields under rainfed ecosystem. Cotton Innovate.
6(1): 1-3.
ICAR-AICRP on Cotton Reports 2019-20, 2020-21 and 2021-22 available at
http://aiccip.cicr.org.in/main_aiccip_reports.html
Managing genetic resources for enhanced stress tolerance
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