In conclusion, genetic variability was observed for all traits and superior seashore paspalum breeding lines for multiple traits were identified under shade. There were a few breeding lines with superior performance to the entry average for all traits for which the entry variance was significant. Spearman correlations of the predicted values for entries between locations ranged from low to moderate, with the exception of between Citra and Tifton (0.76) for CH. ![]() Significant genetic variances were observed in the single-location-repeated-measures analysis for CH and DGCI at Citra and Tifton, %GC at Citra, and TQ at Raleigh. Data were analyzed by mixed model approaches using ASReml-R, and the t-statistics were used to group the entries. The response variables evaluated were percent living ground cover (%GC), dark green color index (DGCI), canopy height (CH) and turfgrass quality (TQ). Field trials were conducted from 2016 to 2019 under shade structures designed to reduce ambient sunlight at three locations: Citra (FL), Tifton (GA), and Raleigh (NC). Germplasm sources were 20 lines from the University of Georgia seashore paspalum breeding program and two checks, the cultivars 'SeaDwarf' and 'SeaStar'. ![]() The objective of this study was to evaluate the performance of seashore paspalum ( Paspalum vaginatum Sw.) breeding lines under shade in multi-environment trials. Thus, breeding for shade tolerance is an essential component of most turfgrass improvement programs. Shade caused by trees or buildings can affect the quality and growth of turfgrasses. Seashore paspalum ( Paspalum vaginatum Sw.) performance under shade in multi-environment trialsĭepartment of Crop and Soil Sciences, North Carolina State University, Campus Box 7620, Raleigh, NC 27695, USAĭepartment of Crop and Soil Sciences, University of Georgia, Griffin Campus, 1109 Experiment Street, Griffin, GA 30223, USAĭepartment of Crop and Soil Sciences, University of Georgia, Tifton Campus, 2360 Rainwater Road, Tifton, GA 31793, USAĪgronomy Department, University of Florida, 2005 SW 23rd Street Bldg 350, Gainesville, FL 32608, USAĮnvironmental Horticulture Department, University of Florida, West Florida Research and Education Center, 4253 Experiment Road, Hwy 182, Jay, FL 32565, USAĭepartment of Horticulture and Landscape Architecture, Oklahoma State University, Oklahoma, OK 74078, USAĭepartment of Environmental Horticulture, University of Florida, 1541 Fifield Hall, Gainesville, FL 32611, USAĪrticle number: 6 (2021) | Cite this article
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