Changes in the Growth and Quality of Creeping Bentgrass (Agrostis palustris Huds. ‘Penn A1’) Following Gibberelinic Acid (GA3) Treatment

Abstract

This study evaluated the effects of gibberellic acid (GA 3 ) on the growth and quality of creeping bentgrass ( Agrostis palustris Huds.). Experimental treatments included a No application of fertilizer and GA 3 (NFG) Control [3 N active ingredient (a.i.) g/m 2 ], 0.3GA 3 (GA 3 0.3 a.i. mg/m 2 / 200 mL), 0.6GA 3 (GA 3 0.6 a.i. mg/m 2 /200 mL), 1.2GA 3 (GA 3 1.2 a.i. mg/m 2 /200 mL), and 2.4GA 3 (GA 3 2.4 a.i. mg/m 2 /200 mL). Additionally, the study included a 1.5N +GA 3 experiment with similar GA 3 treatments combined with 1.5N a.i. g/m 2 : NFG, Control (3N a.i. g/m 2 ), 1.5N+ 0.3GA 3 (1.5N a.i. g/m 2 +GA 3 0.3 a.i. mg/m 2 /200 mL), 1.5N+0.6GA 3 (1.5N a.i. g/m 2