Cytokinins profile in Brassica crops (B. rapa, B. oleracea var. capitata, and B. oleracea var. acephala) under drought (D) and recovery (R) in comparison to the corresponding controls (C); (a) Fluctuation of total cytokinins and distribution of individual CKs groups (nucleotides, ribosides, bases, O-glucosides, and N-glucosides); data are mean of 4 replicates; error bars present SD of total CKs. Fluctuations of CKs groups and individual types of CKs among group: (b) ribosides (R), (c), active bases (trans-zeatin, tZ; cis-zeatin, cZ; dihydrozeatin, DHZ; isopentenyladenine, iP), (d) O-glucosides (OG), and (e) N-glucosides (7G and 9G). Controls are normalized to the value 1. Columns marked with different letters are statistically significantly different (p ≤ 0.05). Data are means of 4 replicates; error bars present SD of total CKs groups. Raw data, normalized data and statistical analysis of individual CKs are given in Supplementary Tables S6–S9.