scholarly journals Effects of mowing height and Cynodon spp. cultivar on traffic tolerance

itsrj ◽  
2021 ◽  
Author(s):  
W.D. Strunk ◽  
K.H. Dickson ◽  
J.C. Sorochan ◽  
A.W. Thoms
Keyword(s):  
Traffic Tolerance

Intercellular void space effects on Kentucky bluegrass traffic tolerance

2020 ◽  
Vol 112 (5) ◽  
pp. 3450-3455 ◽  
Author(s):  
Benjamin Pease ◽  
Adam Thoms ◽  
Rajeev Arora ◽  
Nick Christians
Keyword(s):  
Kentucky Bluegrass ◽  
Void Space ◽  
Traffic Tolerance ◽  
Space Effects

Relative Traffic Tolerance Of Warm-Season Grasses And Suitability For Grazing By Equine

2020 ◽  
pp. 103244
Author(s):  
Aubrey L. Jaqueth ◽  
Thomas R. Turner ◽  
Marie E. Iwaniuk ◽  
Bridgett J. McIntosh ◽  
Amy O. Burk
Keyword(s):  
Warm Season ◽  
Traffic Tolerance ◽  
Warm Season Grasses

scholarly journals Heritability of Simulated Wear and Traffic Tolerance in Three Fine Fescue Species

HortScience ◽  
2018 ◽  
Vol 53 (4) ◽  
pp. 416-420 ◽  
Author(s):  
Austin L. Grimshaw ◽  
Yuanshuo Qu ◽  
William A. Meyer ◽  
Eric Watkins ◽  
Stacy A. Bonos
Keyword(s):  
Broad Sense ◽  
Potential Candidate ◽  
Single Individual ◽  
Broad Sense Heritability ◽  
The North ◽  
Heritability Estimates ◽  
Traffic Tolerance ◽  
Fine Fescue ◽  
Selection Of ◽  
Wear Tolerance

In recent years, turfgrass breeders have given increased attention to the development of lower maintenance turfgrass cultivars. Fine fescues (Festuca spp.) have been identified as potential candidate species for low-maintenance lawns because of their reduced need for water, mowing, and fertilizer. Unfortunately, these species have some weaknesses that must be improved to facilitate their use; perhaps, the most important of these is tolerance to wear and traffic. For this trait to be improved in new cultivars, there must be sufficient heritable variation available for plant breeders to exploit; however, little is known about the heritability of this complex trait in fine fescue species. Therefore, the objective of this study was to determine the heritability of wear and traffic tolerance in three fine fescue species. Replicated field studies were established in North Brunswick, NJ, and St. Paul, MN, and each included 157 Chewing’s fescue (Festuca rubra L. subsp. fallax), 155 hard fescue (Festuca brevipilia), and 149 strong creeping red fescue (F. rubra L. subsp. rubra) genotypes. Wear tolerance was evaluated in North Brunswick and traffic tolerance was evaluated in St. Paul during 2015 and 2016 using different simulators to determine both plant performance and broad-sense heritability estimates for wear and traffic tolerance. Broad-sense heritability estimates for the three species when calculated on a clonal basis was between 0.69 and 0.82 for wear tolerance in the North Brunswick location and between 0.49 and 0.60 for traffic tolerance in the St. Paul location. On a single-plant basis, broad-sense heritability estimates for the three species were between 0.31 and 0.45 for wear tolerance in the North Brunswick location and 0.09 and 0.12 for traffic tolerance in St. Paul. However, this research does indicate that improvement of wear and traffic tolerance in fine fescues is possible through recurrent breeding methods based on selection of replicated clonally propagated genotypes rather than selection of single individual plants of a population. This was the first study to determine the genetic effects of wear and traffic tolerance in any turfgrass species.

Perennial Ryegrass (Lolium perenne L.) and Grooming Affect Bermudagrass Traffic Tolerance

Crop Science ◽  
2011 ◽  
Vol 51 (5) ◽  
pp. 2204-2211 ◽  
Author(s):  
Adam W. Thoms ◽  
John C. Sorochan ◽  
James T. Brosnan ◽  
Thomas J. Samples
Keyword(s):  
Lolium Perenne ◽  
Perennial Ryegrass ◽  
Lolium Perenne L ◽  
Traffic Tolerance

scholarly journals Evaluation of Humic Fertilizers on Kentucky Bluegrass Subjected to Simulated Traffic

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 611
Author(s):  
Alex J. Lindsey ◽  
Adam W. Thoms ◽  
Nick E. Christians
Keyword(s):  
Antioxidant Activity ◽  
Humic Substances ◽  
Poa Pratensis ◽  
Surface Hardness ◽  
Kentucky Bluegrass ◽  
Synthetic Fertilizer ◽  
Coated Urea ◽  
Second Year ◽  
Traffic Tolerance ◽  
And Performance

Sports field traffic tolerance is critical for offering athletes a safe playing surface and adequate turfgrass performance. Humic substances act as bio-stimulants that could enhance turfgrass traffic tolerance by increasing turfgrass efficiency, which could be due to increased root growth, antioxidant activity, and/or physiological health. A two-year field experiment was conducted on a Kentucky bluegrass (Poa pratensis L.) sports field to investigate if incorporating humic substances with fertilizers could improve turfgrass traffic tolerance and performance, and enhance turfgrass recovery after traffic. Treatments included humic-coated urea, poly-coated humic-coated urea, synthetic fertilizer with black gypsum (two application timings), black gypsum, stabilized nitrogen, poly-coated sulfur-coated urea, urea, and a nontreated control. The addition of humic substances to fertilizer treatments did not result in improve traffic tolerance and performance. Fertilizer treatments did not lead to an effect on soil moisture, surface hardness, and shear strength. Turfgrass recovery varied between years. In 2020, the second year of the experiment, four applications of fertilizers increased turfgrass recovery by 136% relative to the nontreated. Furthermore, incorporating humic substances did not result in enhanced turfgrass recovery compared to fertilizers alone. Overall, applications of fertilizers with humic substances could improve turfgrass recovery from traffic compared to fertilizers alone, but results were variable between years.

scholarly journals Evaluation of Experimental Bermudagrasses under Simulated Athletic Field Traffic with Perennial Ryegrass Overseeding

2012 ◽  
Vol 22 (1) ◽  
pp. 94-98 ◽  
Author(s):  
William D. Haselbauer ◽  
Adam W. Thoms ◽  
John C. Sorochan ◽  
James T. Brosnan ◽  
Brian M. Schwartz ◽  
...  
Keyword(s):  
Image Analysis ◽  
Lolium Perenne ◽  
Perennial Ryegrass ◽  
Digital Image ◽  
Digital Image Analysis ◽  
Cynodon Dactylon ◽  
Athletic Fields ◽  
Athletic Field ◽  
Traffic Tolerance

Hybrid bermudagrass (Cynodon dactylon × C. transvaalensis) varieties such as Tifway and TifSport commonly are used on athletic fields. Several experimental hybrid bermudagrasses have been recently developed. However, data describing the performance of these bermudagrasses under simulated athletic field traffic are limited. A 2-year study was conducted evaluating the traffic tolerance of five experimental (2004-76, 2004-83, 2004-78, Tift 11, and 2004-77) and three commercially available (‘Tifway’, ‘TifSport’, and ‘TifGrand’) hybrid bermudagrasses. These bermudagrasses were subjected to two mowing (mowing at 0.87 inches or mowing at 0.87 inches + grooming to a 0.10-inch depth) and overseeding [no overseeding or overseeding with perennial ryegrass (Lolium perenne) at 12 lb/1000 ft2 of pure live seed] regimes. Simulated traffic tolerance using the Cady traffic simulator (CTS) was quantified using measurements of turfgrass cover with digital image analysis (DIA). Experimental bermudagrasses Tift 11 and 2004-76 and the commercially available variety TifGrand yielded turfgrass cover values greater than or equal to ‘Tifway’, a commonly used variety, on all rating dates each year. Experimental bermudagrass 2004-83 yielded the lowest turfgrass cover values on each date. Findings suggest that ‘TifGrand’, 2004-76, and Tift 11 may be suitable for use on athletic fields.

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