Fig. 5. Increase in area under the leaf chlorosis curve (AULCC) due to inoculation (AULCC_I - AULCC_NI) at 2.5 dS/m as a function of increase in AULCC due to salinity (AULCC_4.8– AULCC_0.13) for non-inoculated cultivars of Kentucky bluegrass, slender creeping red fescue, and perennial ryegrass for each of two experimental runs. Data for Arcadia Kentucky bluegrass (solid symbols) omitted from the regression equations. Each point represents the mean of four replications. Dotted lines represent 95% confidence intervals.

Image from Applied Turfgrass Science article:
Salinity and Salinity Tolerance Alter Rapid Blight in Kentucky Bluegrass, Perennial Ryegrass, and Slender Creeping Red Fescue