Growth Inhibition Responses of Kentucky Bluegrass after Applying Trinexapac-Ethyl Solution Diluted to Two Concentration
2021
Kim, Y.S. | Youn, J.H. | Lee, G.J.
This study was conducted to investigate influences of various trinexapac-ethyl (TE) application on growth inhibition and visual quality in Kentucky bluegrass (Poa pratensis L). Treatments were as follows; Control (Non-treatment), H100 (0.005 a.i. g m⁻² 100 mL⁻¹), H300 (0.005 a.i. g m⁻² 300 mL⁻¹), R100 (0.01 a.i. g m⁻² 100 mL⁻¹) and R300 (0.01 a.i. g m⁻² 300 mL⁻¹). Turf color index, chlorophyll index and visual quality of Kentucky bluegrass were not significantly different, so that not showed damages of TE application. Shoot length and clipping yield in TE treatments were decreased by its application amount, but unaffected by its diluting concentration. Compared to time treated TE, shoot length was decreased at June than May, and clipping yield increased. These results indicated that TE amount applied on Kentucky bluegrass decreased shoot elongation and clipping yield and its application concentration was unaffected on. Also, turfgrass growth was influenced by application time of TE.
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