Full TGIF Record # 71174
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Cline, V. W.; White, D. B.
Author Affiliation:Cline: Toro Company; and White: University of Minnesota
Title:Life history trends in Poa annua L. on a northern golf course
Section:Turfgrass science
Other records with the "Turfgrass science" Section
Meeting Info.:Minneapolis, MN: November 5-9, 2000
Source:2000 Annual Meeting Abstracts [ASA/CSSA/SSSA]. 2000, p. 162.
Publishing Information:[Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America
# of Pages:1
Keywords:TIC Keywords: Poa annua control; Golf courses; Life cycle; Perennial grasses; Golf greens; Golf rough; Biotypes; Mesocotyl
Geographic Terms:Minnesota
Abstract/Contents:"Poa annua L. is a common invader of golf course turf in northern climates where it persists under all intensities of management. Even though Poa annua L. exhibits life histories ranging from true annual to perennial, it is commonly believed to exist in highly maintained golf turf in northern climates as a perennial. Differences in management practices for putting greens, fairways and roughs and the resulting variation in growing conditions impose very different selection pressures. As a result Poa annua L. appears to exist in these environments as different biotypes on an r-selection (density independent) to K-selection (density dependent) life history continuum. In this study of Poa annua L. selections from an 80 year old golf course in Minnesota, biotypes from the putting green exhibited traits more toward the r-selected end of the continuum including a shorter pre-reproductive period, less vegetative growth, higher reproductive effort, and higher volumes of smaller seed than the biotypes from the fairway or rough. The distinction between fairway and rough selections was less clear although both exhibited traits more consistent with K-selection including a longer prereproductive period, larger vegetative biomass with a more stoloniferous growth habit, lower reproductive effort and fewer but larger seeds produced per plant."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Cline, V. W., and D. B. White. 2000. Life history trends in Poa annua L. on a northern golf course. Annu. Meet. Abstr. p. 162.
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