Full TGIF Record # 317027
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Web URL(s):https://scisoc.confex.com/scisoc/2021am/meetingapp.cgi/Paper/134194
    Last checked: 03/24/2022
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Walton, Thomas; Richardson, Michael D.; Karcher, Douglas E.
Author Affiliation:University of Arkansas, Fayetteville, AR
Title:Daily light integral requirements of TifEagle bermudagrass and Lazer zoysiagrass putting greens
Section:Golf turf management oral: Cultural practices, physiology, and water (includes student competition)
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C05 turfgrass science
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Meeting Info.:Salt Lake City, Utah: November 7-10, 2021
Source:ASA, CSSA and SSSA International Annual Meetings. 2021, p. 134194.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"Warm-season grasses, especially ultradwarf bermudagrass (Cynodon dactylon ├Ś c. transvaalensis), continue to be used more widely on golf course putting greens in the transition zone. Ultradwarf bermdudagrass (UDB) produces a high-quality putting green surface, however, lacks shade-tolerance. Recently released, fine-textured zoysiagrass (Zoysia spp.) cultivars have emerged as another potential grass option for golf course putting greens in the transition zone. Zoysiagrass is generally considered more shade- and cold-tolerant than bermudagrass, but early research on greens-type zoysiagrasses ('Diamond') concluded that zoysiagrass produced a lower-quality putting surface compared to creeping bentgrass (Agrostis stolonifera) or UDB. 'Lazer' zoysiagrass (Z. mattrella ├Ś Z. minima), which was developed at Texas A&M and commercially released in 2019, may have the potential to produce high-quality putting greens in the transition zone. The objective of this two-year field trial was to compare 'Lazer' zoysiagrass to 'TifEagle' UDB under varying light levels (0, 20, 40, 60 and 80% shade cloth) and management practices to determine the minimum daily light integral (DLI) requirements and assess the surface characteristics (green speed and surface firmness) for each species. Species plots were split with two mowing heights (2.5 and 3.2 mm), and further split with or without weekly applications of the plant growth regulator, trinexapac-ethyl. 'Lazer' demonstrated significantly greater shade tolerance and surface firmness than 'TifEagle'. The minimum DLI requirement for 'Lazer' was about 10 mol m-2 d-1 less than 'TifEagle'. Surface firmness was greater for 'Lazer', while 'TifEagle' produced higher green speed values for most rating dates. However, both species consistently produced green speeds greater than 305 cm. Results from this trial suggest that 'Lazer' zoysia can produce acceptable putting green conditions and is better adapted than 'TifEagle' in moderate shade conditions."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Walton, T., M. D. Richardson, and D. E. Karcher. 2021. Daily light integral requirements of TifEagle bermudagrass and Lazer zoysiagrass putting greens. Agron. Abr. p. 134194.
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