Full TGIF Record # 310290
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Web URL(s):https://scisoc.confex.com/crops/2019am/meetingapp.cgi/Paper/118704
    Last checked: 02/03/2020
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Gopinath, Lakshmy; Moss, Justin Quetone; Wu, Yanqi
Author Affiliation:Gopinath and Moss: Dept. of Horticulture and Landscape Architecture, Oklahoma State University, Stillwater, OK; Wu: Oklahoma State University, Stillwater, OK
Title:Bermudagrass drought tolerance vs avoidance
Section:C05 turfgrass science
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Poster and 5 minute rapid--Turfgrass science oral
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Meeting Info.:San Antonio, Texas: November 10-13, 2019
Source:ASA, CSSA and SSSA International Annual Meetings. 2019, p. 118704.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Keywords:TIC Keywords: Cultivar evaluation; Cynodon dactylon; Cynodon dactylon x Cynodon transvaalensis; Drought resistance; Drought stress; Mechanism of resistance; Stress response
Cultivar Names:Latitude 36; Tifway; TifTuf; Celebration
Abstract/Contents:"Bermudagrasses have different mechanisms to survive drought stress either by growing long roots or by accumulating biochemical solutes in the leaf. Most research conducted in the past has identified drought resistant varieties by growing in unrestricted soil profile. Such drought resistant varieties have shown lower drought resistance in shallow soil profiles. Therefore, it is imperative to differentiate bermudagrass varieties based on the drought response mechanism when grown in various soil depths The objectives of this study were to (i) assess the drought response of 4 commercially available bermudagrasses (Latitude 36, Tifway, TifTuf, and Celebration), and 6 experimental lines of bermudagrasses when subjected to drought when grown under a rainout shelter in the field, and (ii) assess the drought response of these 10 bermudagrasses when subjected to drought stress when grown in a 17-cm deep pots in a controlled environment. No grasses survived beyond 15 days of drought stress suggesting that none of the cultivars were able to avoid drought by extending the roots due to the limited soil profile. However, all the cultivars survived the 60 days and 49 days of drought stress in 2017 and 2018, respectively, without completely browning off. The top performing cultivars in the greenhouse study were OSU1439, TifB16107, Latitude 36, and Tifway. The top performing cultivars in the unrestricted soil profile were TifTuf, TIfB16107, TifB16120, and TifB16113. The inconsistency in the performance of these top performing cultivars under different conditions could be due to the different drought resistance mechanisms adopted during the drought stress. Urban environments often encounter rooting restriction due to soil compaction, shallow bedrock, etc which would require turfgrasses to have better drought tolerance over drought avoidance mechanism. Also, identifying cultivars with superior drought tolerance and drought avoidance would serve in future breeding and development of new drought resistant cultivars."
See Also:See also related article "Bermudagrass vs. drought stress" Golf Course Management, 88(11) November 2020, p. 71, R=312073. R=312073
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gopinath, L., J. Q. Moss, and Y. Wu. 2019. Bermudagrass drought tolerance vs avoidance. Agron. Abr. p. 118704.
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