Full TGIF Record # 333366
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Web URL(s):https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/150726
    Last checked: 12/01/2023
Publication Type:
Content Type:Abstract or Summary only
Author(s):Chalise, Devendra Prasad; Merewitz, Emily B.; Bonos, Stacy A.
Author Affiliation:Chalise: Presenting Author and Crop and Soil Sciences, Michigan State University, East Lansing, MI; Merewitz: Michigan State University, East Lansing, MI; Bonos: Rutgers University, New Brunswick, NJ
Title:Genotypes of perennial ryegrass differ in response to ice encasement
Section:Turfgrass physiology and abiotic stress oral (includes student competition)
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C05 turfgrass science
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Meeting Info.:St. Louis, Missouri: October 29-November 1, 2023
Source:ASA, CSSA, SSSA International Annual Meeting. 2023, p. 150726.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"Perennial ryegrass (Lolium perenne L.) is a versatile cool-season turfgrass species, but its susceptibility to winterkill stresses such as ice encasement limits its usage as a turfgrass in northern areas. To inform potential breeding strategies and genotypic analysis we screened a population likely to segregate for winterkill resilience. Prior to this work, resilient and susceptible parents were selected and crossed to develop a mapping population following a severe winter at Rutgers University in New Jersey. In this study, we evaluated 24 perennial ryegrass genotypes to ice encasement stress (10 and 20 days) and vacuum (20 days). Green cover percentages were measured at regular intervals during the recovery phase. Variability existed in the genotypes for percent of survival immediately following ice encasement, with genotypes ranging from 30.65% to 99.23% for the 10-day ice encasement stress, 36.71% to 94.42% for the 20-day ice encasement stress, and 22.72% to 95.51% for vacuum. Some genotypes displayed a more rapid recovery in green cover during the 10-day ice encasement stress, including P2G26, P2G107, P1G53, and P1G167. Conversely, P2G9 and P2G37 exhibited greater susceptibility. During the 20-day ice encasement stress, genotype P2G38 and P1 displayed quicker recovery, highlighting their potential for enhanced tolerance. The percentage of green cover was found to be inconsistent between the 20-day vacuum and the 20-day ice encasement stress. Therefore, the use of vacuum-seal bag techniques to screen a larger population of genotypes was deemed inappropriate. Genotype variation in growth rates and tillering rates could have played a role in the lack of a straightforward correlation between survival percentages immediately following ice encasement stress and the subsequent recovery of green cover. However, both are important traits that would be useful in phenotyping and for turfgrass managers. Research to evaluate a larger subset of the population in diverse environments is currently underway."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Chalise, D. P., E. B. Merewitz, and S. A. Bonos. 2023. Genotypes of perennial ryegrass differ in response to ice encasement. Agron. Abr. p. 150726.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=333366
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    Last checked: 12/01/2023
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