SNPs significantly associated for anthesis-to-silking interval and grain yield across all locations and models under water stress. All log10P values (<−4.0) observed for a data set were pooled over a GWA plot. (A) Six FDR-corrected associations on 5 chromosomes were observed for WS-ASI specific to locations and models. PZE-101135368 on chromosome 1 demonstrated strong signals at all locations and models, the most significant (P = 5.4 × 10–9) bring for the data set New Delhi–M2. (B) Eight FDR-corrected associations were observed for WS-GY. Four of these were mapped on chromosome 5, with the PZE-105073248 and PZE-105073275 SNPs showing strong association across all data sets.