Developed by top turfgrass researchers at Oklahoma State University (as OCK 1131) and, through nationwide testing in the National Turfgrass Evaluation Program (NTEP), Tahoma 31 demonstrated its resilience and excelled in key metrics compared to other bermudagrasses including Tifway, TifTuf and Latitude 36.
Tahoma 31 derives its name from the Native American word, Tahoma, which means frozen water.In test after test, Tahoma 31 shows its exceptional winter hardiness, tested up to 75% more cold tolerant than other bermudagrass varieties. With the additional characteristics of both improved wear tolerance and drought resistance, Tahoma 31 is ideal for sports turf, golf courses and high-quality lawns in the Mid-Atlantic & Transition Zone.
Tahoma 31 was rated with the lowest winterkill rate (4%) when tested in West Lafayette, Indiana, while some of its competitors.
Tahoma 31 showed superior drought resistance to four cultivars and on average, Tahoma 31 used 18% less water than TifTuf.
With little damage done in the winter, Tahoma 31 had statistically higher spring green-up ratings than competitors.
Tahoma 31 had an establishment rate quicker than other bermudagrasses including TifTuf and Tifway
Tahoma 31 was tested in 19 locations across the United States and ranked in the top 25% of all trial entries, which indicates it is highly adaptable to different climates and soils.
Among 10 experimental grasses and one older cultivar (Tifway) tested, Tahoma 31 was ranked #1 when tested for salinity response.
In up to 63% shade, Tahoma 31 ranked #1 in turf quality among major commercially-available bermudagrass cultivars.
Tahoma 31 Bermudagrass has the strength of the Oklahoma State University turfgrass breeding program behind it, supported by independent testing conducted by the National Turfgrass Evaluation Program.
RESEARCH SUMMARY OF TAHOMA 31 BERMUDAGRASS
(Varietal Name OKC 1131)
Tahoma 31 Bermudagrass, ‘OKC 1131’ was DEV in 2007 and tested in multiple years in the National Turfgrass Evaluation Program (NTEP). The NTEP National Bermudagrass Test provided data from 17 locations in 2013 and 2014, and from 19 location in 2015.
Tahoma 31 advanced to the 2013-2018 National Turfgrass Evaluation Program (NTEP) National Bermudagrass Test and excels in key metrics against other bermudagrasses such as Tifway, TifTuf, Patriot, Latitude 36 and Celebration. View the NTEP results here:
RESULTS OF THE 2013-2017 NTEP DATA
5-year trial in 17 locations. Data published December 2018
Scientific Journal Articles about Tahoma 31 Bermudagrass
Crop Science, May – June, 2018: Evapotranspiration Rates of Turf Bermudagrasses under Non-limiting Soil Moisture Conditions in Oklahoma
Which bermudagrass uses the least amount of water? Tahoma 31 (OKC 1131) An article in the May-June 2018 issue of Crop Science offers this conclusion: TifTuf ranked consistently in the group of genotypes with the highest ET rates, whereas OKC 1131 ranked consistently in the group of genotypes with lowest ET rates in 2013, 2014, and 2015.
How Do Warm-Season Grasses React to Deficit Irrigation in California?”, (Xiang, et. al.) , UC Riverside, March 2020
In a recent turfgrass study released by researchers at the University of California at Riverside, Tahoma 31 Bermudagrass maintained better average turf quality under deficit irrigation than any of the commercially-available bermudagrasses in the study, including TIFTUF. The 5-month study titled “How Do Warm-Season Grasses React to Deficit Irrigation in Californai?”, (Xiang, et. al.), examined bermudagrass turf quality under deficit irrigation at 30%, 45%,and 60% ET replacement. Mean turf quality ratings for the 5-month study under all three ET replacement rates showed Tahoma 31 with better turf quality overall.
Results show the mean turf quality under three ET replacement measurements, (30%, 45%, & 60% ET replacement) deficit irrigation, from June 2019-Oct 2019, as follows:
Tahoma 31 = 6.16
TIFTUF = 5.9
Tifway = 5.88
Monoco = 5.26
Premier Pro = 4.76
In the research summary, the co-authors noted specifically that Tahoma 31 had “green coverage” from June to August in the top group at all ET replacement levels. Starting from September, green cover of all entries declined and eventually dropped below 20%., the authors noted.
Research Suggests Tahoma 31’s Cold Tolerance & Early Spring Green-Up Linked
A research study recently published in the Journal of the American Society for Horticultural
Science may explain some of the reasons why Tahoma 31 Bermudagrass is so much more cold
tolerant than many other tested bermudagrass varieties. The mechanism by which the grass
goes dormant in the late fall may protect the grass from colder temperatures. This mechanism
may also account for why Tahoma 31 has tested as the first to break spring dormancy.
It is hypothesized that Tahoma 31 is more tolerant of freezing temps and has higher cold
tolerance because of its ability to go dormant slightly sooner than some other commercially
available bermudagrasses. This protective measure contributes to it being more cold hardy.
This finding also correlates with how the grass comes out of dormancy earlier than other
bermudagrasses in spring.
“Lipid Composition of Three Bermudagrasses in Response to Chilling Stress” was co-authored
by turfgrass researchers at Oklahoma State University: Charles Fontanier, Justin Quetone
Moss, Lakshmy Gopinath, Carla Goad, Kemin Su, and Yanqi Wu. Published online January