Dependence of stellar rotation period on fundamental convective properties for the sample of younger main-sequence stars. Left panel: Rotation period vs. percentile rank of the convective plasma parameter (p_coupling). Middle panel: Rotation period vs. percentile rank of the convective zone depth (p_bcz). Right panel: Rotation period vs. convective coupling index (CCI). In all panels, rotation periods are shown with error bars, and in the right panel points are color-coded by stellar age. The dashed red line indicates the linear regression fit to the data, with the associated Spearman’s rank correlation coefficient (ρ) displayed.