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Trinexapac-Ethyl and Iron Effects on Supina and Kentucky Bluegrasses Under Low Irradiance

^a Dep. of Horticulture, Univ. of Wisconsin, Madison, WI 53706-1590
^b III, Dep. of Crop and Soil Sciences, Michigan State Univ., East Lansing, MI 48824-1325

View larger version (27K): [in a new window]   Fig. 1. Interaction of trinexapac-ethyl (TE) and species on turf quality in reduced-irradiance conditions during 1994–1995 (a) and 1995–1996 (b), East Lansing, MI. Quality was rated visually on a one-to-nine scale: 1 = 100% dead turf/bare soil; 9 = dense, uniform turf; 5 was the minimum value for acceptable athletic field turf. LSD values are for comparing within or between species or TE levels

View larger version (25K): [in a new window]   Fig. 2. Interaction of trinexapac-ethyl (TE) and species on quality of turf subjected to traffic in reduced-irradiance conditions during 1994–1995 (a) and 1995–1996 (b), East Lansing, MI. Quality was rated visually on a one-to-nine scale: 1 = 100% dead turf/bare soil; 9 = dense, uniform turf; 5 was the minimum value for acceptable athletic field turf. LSD values are for comparing within or between species or TE levels. Plots were installed inside the Covered Stadium Simulator Facility (CSSF) on 12 Dec. 1994 and 8 Dec. 1995. Traffic was applied by a person wearing soccer cleats who jogged across the turf 50 passes weekly from 28 Dec. 1994 (2 wk after installation) to 16 March 1995 (600 passes) and 26 Jan. 1996 (7 wk after installation) to 26 April 1996 (700 passes)