Full TGIF Record # 310346
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Web URL(s):https://scisoc.confex.com/scisoc/2019am/meetingapp.cgi/Paper/119701
    Last checked: 02/05/2020
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Gouveia, Beatriz; Rios, Esteban F.; Rodrigues Nunes, Jose Airton; Gezan, Salvador; Munoz, Patricio R.; Kenworthy, Kevin E.; Unruh, J. Bryan; Milla-Lewis, Susana R.; Miller, Grady L.; Schwartz, Brian M.; Raymer, Paul L.; Chandra, Ambika; Wherley, Benjamin; Wu, Yanqi; Martin, Dennis L.; Moss, Justin Quetone
Author Affiliation:Gouveia and Nunes: Biology, Universidade Federal de Lavras, Lavras, Brazil; Rios and Kenworthy: Agronomy, University of Florida, Gainesville, FL; Gezan: School of Forest Resources and Conservation, University of Florida, Gainesville, FL; Munoz: Agronomy Department, University of Florida, Gainesville, FL; Unruh: Environmental Horticulture, University of Florida, West Florida Research & Education Center, Jay, FL; Milla-Lewis: Crop Science, North Carolina State University, Raleigh, NC; Miller: Crop and Soil Sciences, North Carolina State University, Raleigh, NC; Schwartz: Department of Crop and Soil Sciences, University of Georgia - Tifton, Tifton, GA; Raymer: Institute of Plant Breeding Genetics and Genomics, University of Georgia - Griffin Campus, Griffin, GA; Chandra: Soil and Crop Sciences, Texas A&M University, Dallas, TX; Wherley: Soil & Crop Sciences, Texas A&M University, College Station, TX; Wu and Martin: Oklahoma State University, Stillwater, OK; Moss: Dept. of Horticulture and Landscape Architecture, Oklahoma State University, Stillwater, OK
Title:Across and within-species genotype-by-environment interaction for turf quality using germplasm from five turfgrass breeding programs in the southeastern united states
Section:C05 turfgrass science
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Turfgrass management and ecology poster (includes student competition)
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Meeting Info.:San Antonio, Texas: November 10-13, 2019
Source:ASA, CSSA and SSSA International Annual Meetings. 2019, p. 119701.
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: Adaptability; Breeding program; Cultivar evaluation; Cynodon; Genotype environment interaction; Germplasm; Paspalum vaginatum; Stenotaphrum secundatum; Zoysia
Geographic Terms:Southeastern United States
Abstract/Contents:"In breeding programs, superior parental genotypes are used in crosses to generate novel genetic variability for new selection cycles. Genotypes are usually more adapted to environments where the breeding program is located, since selections are performed for specific agroecosystems. Thus, the objective of this study was to evaluate the performance of breeding lines from five different breeding programs for the following species: bermudagrass (Cynodon[ ]spp.), St. Augustinegrass (Stenotaphrum[ ]secundatum), Seashore Paspalum (Paspalum[ ]vaginatum) and Zoysiagrass (Zoysia[ ]spp). Germplasm sources were: 80 breeding lines from Oklahoma State University (OSU) and 80 from University of Georgia (UGA) for bermudagrass; 80 from North Carolina State University (NCSU) and 80 from Texas A&M University (TAMU) for St. Augustinegrass; 80 from University of Florida (UF) and 80 from TAMU for Zoysiagrass; and 80 from UGA for S. Paspalum. Field trials for all species were conducted in 2011-2012 at seven locations: Citra (Florida), College Station and Dallas (Texas), Griffin and Tifton (Georgia), Stillwater (Oklahoma), Jackson Springs (North Carolina). Each trial was arranged as randomized complete-block design with two repetitions. The response variable evaluated was averaged turf quality (TQ) (NTEP ratings from 1 to 9) across repeated measurements over time within a given experimental unit. Data were analyzed by mixed model approaches using ASReml-R and principal component analysis (PCA) were performed using breeding values. Bermudagrass exhibited higher TQ in Dallas, Stillwater and College Station, and genotypes from UGA were superior. St. Augustinegrass genotypes from TAMU showed higher TQ ratings in Tifton, Jackson Springs and Citra. Zoysiagrass genotypes exhibited higher TQ were near Griffin and Tifton, and there was not a clear clustering between the two germplasm sources. S. Paspalum[ ]genotypes were not associated with specific locations. In conclusion, genotypes did not have specific adaptability for the same environment breeding programs that they had originated."
Note:This item is an abstract only!
"Poster #1604"
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Miller, G. L., B. M. Schwartz, P. L. Raymer, A. Chandra, B. Wherley, Y. Wu, et al. 2019. Across and within-species genotype-by-environment interaction for turf quality using germplasm from five turfgrass breeding programs in the southeastern united states. Agron. Abr. p. 119701.
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