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Implications of Exposing Mungbean (Vigna radiata L.) Plant to Higher CO2 Concentration on its Growth and Yield

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Abstract

This study was carried out during summer season of 2018 and 2019 to understand the implications of elevated carbondioxide concentration (e[CO2]) in mungbean growth, dry matter accumulation, activity of antioxidant enzymes and yield. The exposure of mungbean plant to e[CO2] resulted into increase in shoot length, stem, leaf and total biomass. However, the changes in crop growth and biomass upon e[CO2] exposure was stage specific, as no significant alteration in growth parameters was observed during vegetative stage. The e[CO2] resulted into significant increase in seed yield (39–68%) attributed to an increase in the number of pods per plant (41–42%) and number of seeds per plant (43–67%). There was also a significant alteration in leaf biochemical composition upon e[CO2] exposure as evident from reduced activities of peroxidase (maturity stage), super oxide dismutase (vegetative stage) and glutathione reductase (vegetative and podding stage).

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Acknowledgements

The authors are highly thankful to the supporting staff of Indian Institute of Pulses Research, Kanpur for technical help during experiment.

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Correspondence to Amrit Lamichaney.

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Significance Statement: Elevated CO2 is reported to improve crop growth and yield. However, it is also known to have certain negative effects such as reduction in nutrients, vitamins, macro-and micro elements, cause oxidative stress as well. Therefore, generating information on crop responses to e[CO2] is vital to better understand the crop response.

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Lamichaney, A., Tewari, K., Katiyar, P.K. et al. Implications of Exposing Mungbean (Vigna radiata L.) Plant to Higher CO2 Concentration on its Growth and Yield. Natl. Acad. Sci. Lett. 47, 195–198 (2024). https://doi.org/10.1007/s40009-023-01340-w

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  • DOI: https://doi.org/10.1007/s40009-023-01340-w

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