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Articles | Volume 8, issue 1
Articles | Volume 8, issue 1
https://doi.org/10.5194/soil-8-49-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/soil-8-49-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 8, issue 1
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20 Jan 2022
Short communication | Highlight paper |  | 20 Jan 2022

Rhizodeposition efficiency of pearl millet genotypes assessed on a short growing period by carbon isotopes (δ13C and F14C)

Papa Mamadou Sitor Ndour, Christine Hatté, Wafa Achouak, Thierry Heulin, and Laurent Cournac

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Short summary
Unravelling relationships between plant rhizosheath, root exudation and soil C dynamic may bring interesting perspectives in breeding for sustainable agriculture. Using four pearl millet lines with contrasting rhizosheaths, we found that δ13C and F14C of root-adhering soil differed from those of bulk and control soil, indicating C exudation in the rhizosphere. This C exudation varied according to the genotype, and conceptual modelling performed with data showed a genotypic effect on the RPE.
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