The main effects of elevated CO and soil-water deficiency on H NMR-based metabolic fingerprints of Coffea arabica beans by factorial and mixture design.

The metabolic response of Coffea arabica trees in the face of the rising atmospheric concentration of carbon dioxide (CO) combined with the reduction in soil-water availability is complex due to the various (bio)chemical feedbacks. Modern analytical tools and the experimental advance of agronomic science tend to advance in the understanding of the metabolic complexity of plants. In this work, Coffea arabica trees were grown in a Free-Air Carbon Dioxide Enrichment dispositive under factorial design (2) conditions considering two CO levels and two soil-water availabilities.