1. Fig. S1 Change in volumetric water content of the soil in CS and Shiraz cultivars during the irrigation cycles Pre-veraison Post-veraison Veraison

2. Fig. S2 Relative abundance (log10) of coumaroyl tartarate coumaric acid hexoside and ferulate at four developmental stages of the two cultivars. Values represent mean±SE (n=6).

3. Fig. S3 Coumaroyl form of berry skin anthocyanin at four developmental stages of the two cultivars. Values represent mean + SE (n=6). ** *** **

4. + 75 - 64 + + 947 - - 695 + 178 - 131 CS Shiraz Fig. S4A Summary of metabolite correlation in CS and Shiraz with ‘+’ and ‘–‘ indicating significant (p 0.7) and negative (R < -0.7) correlations, respectively Fig. S4B Nodal degree distribution of CS (left) and Shiraz (right) networks.

5. CSShiraz Fig. S5 Functional category distribution of differentially expressed gene transcripts (classified) of CS and Shiraz. Transcripts were grouped into 12 (CS) and 10 (Shiraz) higher level functional categories. The entire list of categories generated using Expander enrichment analysis tool is presented in Table S5.