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| Web URL(s): | https://scisoc.confex.com/scisoc/2018am/meetingapp.cgi/Paper/111650
Last checked: 11/19/2018
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): | Henry, Gerald M.;
Missaoui, Ali M.;
Tucker, Kevin;
Shilling, Ross |
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| Author Affiliation: | Henry: University of Georgia-Athens, Athens, GA; Missaoui: Institute of Plant Breeding, Genetics and Genomics, University of Georgia, Athens, GA; Tucker and Shilling: Crop and Soil Sciences, University of Georgia-Athens, Athens, GA |
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| Title: | The effect of soil moisture stress on perennial ryegrass genotypes |
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| Section: | C05 turfgrass science
Other records with the "C05 turfgrass science" Section
Turfgrass science - II poster
Other records with the "Turfgrass science - II poster" 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. 111650. |
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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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| Abstract/Contents: | "Perennial ryegrass (Lolium perenne L.) is often overseeded into dormant warm-season turf or utilized for erosion control in the southeastern United States. This may create challenges in ryegrass establishment and turfgrass quality due to heat and drought stress. New perennial ryegrass germplasm has been identified at the University of Georgia that exhibits tolerance to adverse conditions. Four water table depth gradient tanks were utilized at the Crop and Soil Sciences greenhouse complex in Athens, GA during the summer of 2018. Tanks were steeply sloped and oriented to the south. The tanks measured 2.4 m long, 1.2 m wide, and were 0.3 m high at one end and 1.8 m high at the other end with a volume of nearly 4 m3. Each tank was lined with a double layer of 0.076-mm (3-mil) black plastic and had a 10-cm base of pea gravel to provide a uniform substrate for water movement. All four tanks were filled with a steamed 2:1 mixture of Cecil sandy clay loam (fine, kaolinitic, thermic Typic Kanhapludults) and Wakulla sand (siliceous, thermic Psammentic Hapludults). A 1.9-cm valve at the high end of the tank regulated water inflow while a standpipe (2.5 cm) at the low end of the tank regulated the water table height. Tank surfaces were divided into nine levels ranging in depth to the water table (DWT) of 27 cm (Level 1) to 151 cm (Level 9). Eight perennial ryegrass genotypes ('GPT 14021', 'GPT 14023', 'GPD 14019', 'Remington NIL', 'Remington NEA2', 'BG 34', 'ONE 50 ARI', and 'Banquet II') were transplanted on April 20, 2018 in columns randomly assigned to each tank. Surface irrigation provided through hand-watering was employed every other day (0.4 cm d-1) for approximately 4 wk during establishment to give a greater opportunity for uniform recruitment (stopped on May 18, 2018). Natural light was supplemented with artificial light at 500 µmol m-2 s-1 photosynthetic photon flux in a 12-h day to approximate summer light intensity and photoperiod. Conditions in the greenhouse were maintained at day/night temperatures of 32/24°C. Plants were not mowed throughout the duration of the trial. Thermal and NDVI sensors were mounted above each tank and recorded data every hour. Capillary rise was determined at the conclusion of the trial by excavating the soil profile at each level and measuring moisture. Soil moisture readings for all four tanks were averaged in order to create a profile of the capillary fringe. The capillary fringe of the tanks rose approximately 81 cm from the water table. Percent volumetric water content (VWC) was 21.2, 10.6, 3.1, 0, and 0% in the upper 7.6 cm of the soil profile for levels 1, 3, 5, 7, and 9, respectively. Above-ground biomass of perennial ryegrass plants was harvested on August 10, 2018." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"332"
"Poster Number: 1227" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Henry, G. M., A. M. Missaoui, K. Tucker, and R. Shilling. 2018. The effect of soil moisture stress on perennial ryegrass genotypes. Agron. Abr. p. 111650. |
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Last checked: 11/19/2018
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