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| Web URL(s): | http://archive.lib.msu.edu/tic/ressum/1985/5.pdf?_ga=1.105614787.1383136656.1456948762 Last checked: 01/20/2017 Requires: PDF Reader |
| Publication Type: | Report |
| Author(s): | Branham, Bruce |
| Author Affiliation: | Michigan State University |
| Title: | The effect of seven management factors and their interaction on the competitive ability of annual bluegrass and creeping bentgrass |
| Source: | Annual Turfgrass Research Report [USGA/GCSAA]. 1985, p. 5-6. |
| Publishing Information: | Far Hills, New Jersey: United States Golf Association, Golf House. |
| # of Pages: | 2 |
| Full Report URL: | http://turf.lib.msu.edu/rprl/113.pdf Last checked: 9/2001 Requires: Adobe Acrobat Notes: This is the entire full report! |
| Keywords: | TIC Keywords: Agrostis stolonifera; Bent versus Poa; Clipping removal; Clipping return; Compaction; Competitive ability; Flurprimidol; Growth regulators; Irrigation program; Overseeding; Poa annua |
| Abstract/Contents: | "Annual bluegrass is the predominant turfgrass found on golf courses in the Northeastern region of the United States. Annual bluegrass is not planted intentionally, but is a weed that is very competitive under golf course management. The perferred species for golf course greens and fairways is creeping bentgrass. These studies were designed to measure the influence of seven management factors and their interactions on the competitive balance between the two species. Two main field studies are being conducted to examine these seven factors. One study contains five factors of irrigation (daily, three times per week, or irrigation at wilt); fertility (2 lbs N/M/YR or 6 lbs N/M/YR); clipping removal or return; plant growth regulator (flurprimidol at 1 lb AI/A, mefluidide at 0.125 lb AI/A, or a check); and overseeding with bentgrass or no overseeding. This five factor study has been conducted for two years at the Hancock Turfgrass Research Center in East Lansing, Michigan. The results indicate that removing clippings causes the greatest reduction in annual bluegrass population with a 14.2 percent decrease. The only other factor that caused a significant decrease in annual bluegrass populations was low nitrogen fertility, 2 lbs N/M/YR, which caused a 12.2 percent decrease in annual bluegrass. There was however, a significant three-way interaction between clipping removal, irrigation, and fertility. Plots where clippings were removed, fertility was at 2 lbs N/M/YR and darigation occurred at wilt had a significantly lower amount of annual bluegrass with a 22.8 percent decline. The other interesting aspect of this three-way interaction was that where irrigation was applied daily and fertility was low, the clipping treatment was not signficant. Whether clippings were removed or returned, significant reductions in the annual bluegrass population can be achieved with low fertility and daily irrigation. A second study examining the same irrigation and clipping treatments along with compaction and coring treatments found only compaction to be significant. Compacted plots had a 9.6 percent increase in annual bluegrass while noncompacted plots had a 5.4 percent decrease. A final field study was designed to determine the effects of flurprimidol, a plant growth regulator which is claimed to give a competitive advantage to creeping bentgrass, on the rate of spread of creeping bentgrass. Results are preliminary but seem to indicate that flurprimidol does not encourage the spread of creeping bentgrass in an annual bluegrass turf." |
| Language: | English |
| References: | Unknown |
| See Also: | See also related manuscript, The Effect of Seven Management Factors and Their Interaction on the Competitive Ability of Annual Bluegrass and Creeping Bentgrass: [1985 Annual Progress Report], 1985, R=254071.R=254071 |
| See Also: | Other Reports from this USGA research project: 1985-03-020 |
| Note: | Entire contents listed in abstract field |
| ASA/CSSA/SSSA Citation (Crop Science-like – may be incomplete): | Branham, B. 1985. The effect of seven management factors and their interaction on the competitive ability of annual bluegrass and creeping bentgrass. Turfgrass Environ Res. Summ. p. 5-6. |
| Fastlink to access this record outside TGIF: | http://tic.lib.msu.edu/tgif/flink/RECNO/7701 |
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| Web URL(s) : | http://turf.lib.msu.edu/rprl/113.pdf Last checked: 9/2001 Requires: Adobe Acrobat Notes: This is the entire full report! |
| MSU catalog number: | SB 433 .A1 A6 |
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