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Contributions of current year photosynthate to fine roots estimated using a 13C-depleted CO2 source

Contributions of current year photosynthate to fine roots estimated using a 13C-depleted CO2 source

Plant and Soil 247(2): 233-242

ISSN/ISBN: 0032-079X

DOI: 10.1023/a:1021580232181

The quantification of root turnover is necessary for a complete understanding of plant carbon (C) budgets, especially in terms of impacts of global climate change. To improve estimates of root turnover, we present a method to distinguish current- from prior-year allocation of carbon (C) to roots in global change experiments by using changes in 13C:12C ratios ( delta 13C values) resulting from application of 13C-depleted, tank-derived CO2.

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Accession: 003693657

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