Te Riverside, CA Approach 2 location, again in 2021 reported much different results from the subtropical Ft. Lauderdale site. Turf quality averages were below the minimum overall turf quality average of 6.0 under 30 percent ETo


replacement. ‘TifTuf ‘, finishing with the


highest overall quality at 5.2, posted an acceptable turf quality rating in five of the first eight weeks, the most of any entry. Over the twenty-week drought stress period, besides ‘TifTuf ’, ‘Dog Tuff’, ‘FB 1628’, ‘Tifway’, ‘Monaco’ and five others had statistically equal overall turf quality averages. At the 45 percent ETo


replacement level at


Riverside, ‘TifTuf ’ (TQ=6.2) was the only entry to deliver acceptable turf quality averaged over all rating dates.


At the College Station, TX, and Las Cruces, NM, locations, the entries also performed surprisingly well under the 30 percent ETo


level with several finishing at


turf quality above 6.0. ‘TifTuf ’ bermuda and ‘Prestige’ buffalograss were the only entries in the top statistical group to maintain at least a 6.0 quality score on each rating date across the twenty-week trial period at College Station. Similarly, the Las Cruces, NM, 30 percent ETo


level data


showed five entries, ‘TifTuf ’, ‘FB 1628’, and ‘Tifway’ bermuda, and ‘FAES 1307’ and ‘Meyer’ zoysia, with a 6.0 or higher on each rating date. ‘FAES 1307’ and ‘TifTuf ’ finished tied for highest overall turf quality (6.9) at Las Cruces. Warm-season water use and drought data can be found at https://www.ntep.org/wsw.htm.


Te “Irrigation” Box used to restrict water applications to only a one-meter square area in the middle of the plots.


Warm-Season Water Use Trial, Ft. Lauderdale, Fl, February 2022; 30 percent ETo 32


replacement TPI Turf News September/October 2022


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