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Trait means of individual chickpea accessions in low (1 ppm) and high nitrogen environments (100 ppm). (A) Specific root length (SRL), (B) root density, (C) water-use efficiency (δ13C), and (D) canopy photosynthesis (CPA). Domesticated (yellow) and wild (green) chickpea accessions are grouped. Error bars denote standard errors.
