Fig. 1. A. Day-of-harvest Kentucky bluegrass (KBG) canopy photochemical efficiency (Fv/Fm) as influenced by salicylic acid (SA) application in 2000 and 2001. Bars with different letter designations within years indicate a significant difference at P = 0.05. 1B. Day-of-harvest tall fescue (TF) canopy photochemical efficiency (Fv/Fm) as influenced by salicylic acid (SA) application in 2000 and 2001. Bars with different letter designations within years indicate a significant difference at P = 0.05.