Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
Conclusion
Improvement of biomass and yield parameters in black gram with eCO2.
The elevated CO 2 of 550ppm reduced the days to flowering and improved the physiological
performance, biomass, and seed yield of the blackgram crop. However, the selected four
blackgram genotypes showed differential responses for physiological, biomass, and yield
parameters with eCO 2. The highest response to eCO 2 for physiological parameters was with
genotype IPU-06-02, for vegetative biomass was with PLU-826, and seed yield with IPU- 94-
1. The improvement in seed yield was due to the increased number of pods, seeds and test
weight revealing that the eCO2 condition provided a beneficial impact through increased pod
set and seed filling of this C3 leguminous crop.
References
Kimball, B. A. 2011. Lessons from FACE: CO2 Effects and Interactions with Water,
Nitrogen, and Temperature. In: Hillel, D. and Rosenzweig, C., Eds., Handbook of
Climate Change and Agroecosystems: Impacts, Adaptation, and Mitigation, Imperial
College Press, London, 87-107.
Pan, C., Ahammed, G. J., Li, X., and Shi, K. 2018. Elevated CO2 improves photosynthesis
under high temperature by attenuating the functional limitations to energy fluxes,
electron transport and redox homeostasis in tomato leaves. Front. Plant Sci. 9: 1739.
https:// doi.org/10.3389/fpls.2018.01739.
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