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| Web URL(s): | https://scisoc.confex.com/scisoc/2018am/meetingapp.cgi/Paper/111856
Last checked: 11/14/2018
Requires: JavaScript |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Pirtle, Todd;
Erickson, John;
Kenworthy, Kevin E.;
Unruh, J. Bryan;
Kruse, Jason;
Cardenas-Lailhacar, Bernard;
Dukes, Michael |
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| Author Affiliation: | Pirtle, Erickson, and Kenworthy: Agronomy Department, University of Florida, Gainesville, FL; Unruh: Environmental Horticulture Department, University of Florida West Florida Research & Education Center, Jay, FL; Kruse: Environmental Horticulture Department, University of Florida, Gainesville, FL; Cardenas-Lailhacar and Dukes: Agricultural & Biological Engineering Department, University of Florida, Gainesville, FL |
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| Title: | Evaluation of warm-season turfgrass species under differing irrigation regimes |
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| Section: | C05 turfgrass science
Other records with the "C05 turfgrass science" Section
Turf ecology and management II: Soil, water, plant nutrition and biotic stress (includes student competition)
Other records with the "Turf ecology and management II: Soil, water, plant nutrition and biotic stress (includes student competition)" Section
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| Meeting Info.: | Baltimore, Maryland: November 4-7, 2018 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. 2018, p. 111856. |
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| Publishing Information: | [Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Canadian Society of Agronomy] |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Cultivar evaluation; Irrigation methods; Stenotaphrum secundatum; Warm season turfgrasses
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| Abstract/Contents: | "Continued urbanization has placed greater demands on municipal water supplies, especially during periods of prolonged drought. Thus, a goal of turfgrass breeding programs has been to develop turfgrass varieties with improved performance under limited water inputs, as is often required by municipalities through implementation of watering restrictions. St. Augustinegrass [Stenotaphrum secundatum (Walt.) Kuntz] is a common lawn grass in the southern U.S. and recent widespread breeding efforts have focused on improving St. Augustinegrass performance under limited water inputs. Thus, the objectives of this research were to (1) assess the effects of irrigation management and genotype on turf quality (TQ) and NDVI in the field, and (2) water use (ET) of improved lines under optimal and water-limited conditions in a greenhouse. The field study was a split plot design with main plot (irrigation) arranged in blocks and the subplot was genotype. The irrigation treatments included: soil moisture sensor-based, twice a week, once a week, bi-monthly, once a month and no irrigation. St. Augustinegrass genotypes included three commercially available cultivars ('Floratam', 'Palmetto', and 'TamStar') and 8 experimental entries. For the greenhouse study, 9 lineswere collected from the field as plugs, allowed to establish in 100 mmdiameter tubes, and then data on ET were collected using a gravimetric approach. TQ and NDVI data varied by time, genotype, and irrigation treatment, but were generally well correlated (R2= 0.90). During the 2018 spring dry period in the field, twice per week and sensor-based irrigation produced the highest TQ (5-7 on a 1-9 scale; 6 = acceptable) means for all cultivars, and TQ declined with once per week and lesser treatments (2-4 on a 1-9 scale; 6 = acceptable). Although TQ of all lines declined under low water inputs, DALSA1618 exhibited better quality than commercially available cultivars. This correlated well with our greenhouse trial where DALSA1618 used the least amount of water under both well-watered and limited water inputs. These results indicate that recent breeding efforts have produced genotypes that require less water than current commercially available cultivars." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"175-4" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Pirtle, T., J. Erickson, K. E. Kenworthy, J. B. Unruh, J. Kruse, B. Cardenas-Lailhacar, et al. 2018. Evaluation of warm-season turfgrass species under differing irrigation regimes. Agron. Abr. p. 111856. |
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Last checked: 11/14/2018
Requires: JavaScript |
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