Full TGIF Record # 309469
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Web URL(s):https://scisoc.confex.com/scisoc/2019am/meetingapp.cgi/Paper/119472
    Last checked: 11/27/2019
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Powlen, Jada; Bigelow, Cale; Patton, Aaron J.; Jiang, Yiwei; Fraser, Melodee
Author Affiliation:Powlen, Bigelow, and Jiang: Purdue University, West Lafayette, IN; Patton: Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN; Fraser: Pure Seed, Rolesville, NC
Title:Irrigation needs of drought susceptible and tolerant tall fescue and Kentucky bluegrass cultivars at two mowing heights
Section:C05 turfgrass science
Other records with the "C05 turfgrass science" Section

Turf ecology and management oral I: Physiology, irrigation, and abiotic stress (includes student competition)
Other records with the "Turf ecology and management oral I: Physiology, irrigation, and abiotic stress (includes student competition)" Section
Meeting Info.:San Antonio, Texas: November 10-13, 2019
Source:ASA, CSSA and SSSA International Annual Meetings. 2019, p. 119472.
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; Deficit irrigation; Drought resistance; Festuca arundinacea; Irrigation requirements; Mowing height; Perceptions; Poa pratensis
Abstract/Contents:"Water consumption and supply in the urban landscape continues to be concerns for many communities throughout the US. While much of the public prefers an aesthetically pleasing lawn with consistent green color across growing season, they are unaware of the differences among species for cultural inputs, such as supplemental irrigation, or how factors such as mowing height can affect water needs, often resulting in excessive irrigation. A field study over two growing seasons was conducted to determine the water needs of a drought sensitive (DS) and two drought tolerant (DT) Kentucky bluegrass (KBG) or tall fescue (TF) cultivars at two mowing heights (5.1 or 8.9 cm) beneath a fixed-roof rain-out shelter. Supplemental irrigation was determined using a green coverage threshold (GCT70) approach, where if an individual plot fell below 70% green coverage using digital imaging software, 12.7 mm of supplemental irrigation was applied. Time to reach GCT70 ranged from 18.0 to 52.5 days and 15.0 to 43.5 days in year one and two, respectively. Total irrigation needs for the 74-day period in year one ranged from 60.3 to 187.3 mm and varied by species and cultivar. Tall fescue, regardless of cultivar, generally took the longest time to reach GCT70 and required the least supplemental irrigation. After 60 days in year two, supplemental irrigation ranged from 53.7 to 134.3 mm, with TF performing similarly to year one compared to KBG. Mowing height had no effect on KBG cultivar performance, but maintaining TF at 5.1 cm reduced irrigation needs and improved appearance in year one. These data reinforce the fact that significant supplemental irrigation can be saved by planting a DT species and/or cultivars and using of a deficit irrigation strategy."
See Also:See also related article "Irrigation for drought-sensitive and tolerant cool-season cultivars at two mowing heights" Golf Course Management, 88(1) January 2020, p. 135, R=309994. R=309994
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Powlen, J., C. Bigelow, A. J. Patton, Y. Jiang, and M. Fraser. 2019. Irrigation needs of drought susceptible and tolerant tall fescue and Kentucky bluegrass cultivars at two mowing heights. Agron. Abr. p. 119472.
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