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. 2016 May 24;11(5):e0156117. doi: 10.1371/journal.pone.0156117

Fig 4. Evolution of free and bound volatile compounds in grapes under the two treatments.

Fig 4

(A), (B), and (C) represents the concentrations of free and bound isoprenoid-, amino acid-, and fatty acid-derived volatiles, respectively, under rain-shelter and open-field cultivation in 2012 and 2013. TCA: Tricarboxylic Acid. * represents a significant difference in the concentrations of compounds between the two types of cultivation (p<0.05).