Full TGIF Record # 331428
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Web URL(s):https://scisoc.confex.com/scisoc/2022am/meetingapp.cgi/Paper/142472
    Last checked: 08/23/2023
Publication Type:
Content Type:Abstract or Summary only
Author(s):Houting, Kirtus P.; Kerns, James P.; Miller, Grady L.; Schwartz, Brian M.; Patton, Aaron J.; Milla-Lewis, Susana R.
Author Affiliation:Houting: Presenting Author and North Carolina State University; Kerns, Miller, and Milla-Lewis: North Carolina State University; Schwartz: University of Georgia-Tifton; Patton: Purdue University
Title:Evaluation of a zoysiagrass mapping population for field performance and correlations with large patch resistance
Section:Turfgrass physiology, molecular biology, microbione, and genetics poster (includes student competition)
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C05 turfgrass science
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Meeting Info.:Baltimore, Maryland: November 6-9, 2022
Source:ASA, CSSA, SSSA International Annual Meeting. 2022, p. 142472.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"Zoysiagrass, which is grown extensively throughout the world and the transitional and southern United States, is considered a lower input warm-season turfgrass. While zoysiagrass is more tolerant than other warm-season turfgrasses to many abiotic and biotic stresses, it is affected by the foliar disease large patch (LP) caused by Rhizoctonia solani AG 2-2LP. A mapping population from a cross of LP susceptible, cold tolerant Meyer (Z. japonica) and LP resistant, cold susceptible PI231146 (Z. matrella) was developed in order to gain a better understanding of the genetic control associated with large patch resistance. While this population was used for phenotypic evaluation of LP resistance under controlled environmental conditions, it was also planted at the Upper Mountain Research Station (Laurel Springs, NC) and the William H. Daniel Research and Diagnostic center (West Lafayette, IN) for field evaluation of freeze tolerance and overall field performance. Entries were established in a randomized complete block design with three replications per location. Plots were evaluated Spring 2021 through Fall 2022 visually for turf quality and winterkill on scale of 1-9 according to NTEP, and using an Unoccupied Aerial System (UAS) to collect percent green cover (PGC, 0-100%) data. Additionally, correlations between these traits and LP resistance were calculated in order to identify potential associations that could be used for indirect selection of LP resistance. Preliminary analysis of the data identified significant differences among entries, locations and the interaction of the two. Strong correlations have been observed between winter kill and spring green up and moderate correlation observed between LP severity and establishment. Furthermore, breeding lines with enhanced freeze tolerance and establishment rates have been identified at both locations. These lines will be advanced in the breeding process and further evaluated along cultivar checks in order to evaluate their potential for commercial release."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Houting, K. P., J. P. Kerns, G. L. Miller, B. M. Schwartz, A. J. Patton, and S. R. Milla-Lewis. 2022. Evaluation of a zoysiagrass mapping population for field performance and correlations with large patch resistance. Agron. Abr. p. 142472.
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    Last checked: 08/23/2023
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