Full TGIF Record # 317065
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Web URL(s):https://scisoc.confex.com/scisoc/2021am/meetingapp.cgi/Paper/133587
    Last checked: 03/28/2022
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Osburn, Andrew; Grubbs, Rebecca; Bagavathiannan, Muthu
Author Affiliation:Osburn: Department of Soil and Crop Sciences, College Station, TX; Grubbs and Bagavathiannan: Soil and Crop Sciences, Texas A&M University, College Station, TX
Title:Phenology and adaptive traits of Poa annua l. (annual bluegrass) populations from multiple plant hardiness zones in the United States
Section:Turfgrass pest management oral I (includes student competition)
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C05 turfgrass science
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Meeting Info.:Salt Lake City, Utah: November 7-10, 2021
Source:ASA, CSSA and SSSA International Annual Meetings. 2021, p. 133587.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"Annual bluegrass (Poa annua L.) is one of the most problematic winter annual weeds in various turfgrass systems across the country, drastically driving up management costs and greatly reducing the aesthetic value of turfgrass landscapes. Since annual bluegrass can express resistance to as many as nine unique herbicide sites-of-action, including cross resistances, and has been known to exhibit various growth habits and life cycles based on its growing environment, many turfgrass managers are left with very few tools in their toolbox to control this weed. Additionally, annual bluegrass has been found infesting all major landmasses including Antarctica. This weed has demonstrated high adaptive potential, but not much is known about how readily and successfully different populations of annual bluegrass will adapt to new turfgrass environments. In fall of 2020, ten unique populations of annual bluegrass from various plant hardiness zones were planted into a common environment in College Station, Texas and various morphological and adaptive traits were measured. We observed a high degree of variability across populations from different geographic locations. General trends were that the southern annual bluegrass populations had greater number of individuals with early-flowering phenotype, whereas annual bluegrass from more northern areas expressed greater early-season tiller production, spring regrowth biomass, and total plant biomass at maturity. All annual bluegrass populations evaluated here established and reproduced successfully, though phenotypic heterogeneity exhibited across the unique populations suggests that annual bluegrass retained the adaptive traits of their maternal parentage. Findings indicate that annual bluegrass infestations into new areas are likely seed limited, rather than limited by their ability to adapt. Efforts should be placed in preventing seed dispersal at local, regional, national and international scales."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Osburn, A., R. Grubbs, and M. Bagavathiannan. 2021. Phenology and adaptive traits of Poa annua l. (annual bluegrass) populations from multiple plant hardiness zones in the United States. Agron. Abr. p. 133587.
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    Last checked: 03/28/2022
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