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| Web URL(s): | https://listings.lib.msu.edu/nwtgc/1988.pdf#page=45
Last checked: 01/17/2017
Requires: PDF Reader |
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| Publication Type:
| Proceedings |
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| Author(s): | Poitras, Steve;
Johnston, William J.;
Golob, Charles |
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| Author Affiliation: | Graduate Student, Assistant Professor, and Research Technician, Dept. of Agronomy and Soils, Washington State Univ., Pullman, WA |
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| Title: | Plant growth regulators and winter protective covers on bentgrass putting greens |
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| Meeting Info.: | September 19-22, 1988 |
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| Source: | Proceedings of the 42nd Northwest Turfgrass Conference. Vol. 42, December 1988, p. 39-43. |
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| Publishing Information: | Spokane, WA: Northwest Turfgrass Association |
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| Keywords: | TIC Keywords: Growth regulators; Quality evaluation; Protective covers; Agrostis; Golf greens; Amidochlor; Flurprimidol; Mefluidide; Fenarimol
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| Abstract/Contents: | In recent years winter protective covers have been used to prevent winter desiccation of turfgrass. However, surge growth that occurs under the covers during warm periods that may occur during late winter and spring is a problem. The covers create a greenhouse effect, thus promoting early, rapid, excessive growth. The cutting height of mowers have to be raised and then gradually lowered to avoid injury to the turf by removing too much foliage at one time. Sometimes due to variations in the weather, the covers have to be removed, the excess growth mowed off, and then the covers reinstalled when the weather gets colder. To try and solve this problem, a study was conducted to evaluate the use of plant growth regulators (PGRs) with protective covers. Several PGRs were studied: Amidochlor ("Limit"), Flurprimidol ("EL 500", "Cutless"), Mefluidide ("Embark"), and Fenarimol ("Rubigan"). The protective cover used in the study was the "Reemay" row cover. "It is a lightweight spunbound polyester fiber that will allow 70 to 85% light transmission. The experiment was conducted as a strip-plot design with three replications of each treatment. Data was collected on turfgrass quality, color, shoot height, dry weight of above ground foliage, and root weight, on several dates to compare the changes over time. All data collected are not reported in this paper." PGRs, and fungicide were applied in December 2, 1987 and were left on until March 11,1988, when conditions were deemed favorable to the turf. At the time of cover removal, it was evident that the condition of all the treated covered plots was superior to the uncovered plots, and the growth suppression from the PGRs was variable. One month later, the quality of most of the treated covered plots was declining while the quality of the uncovered plots was increasing. The high rate of mefluidide treatment had a quality rating as high as the uncovered check plot. It remained equal to the uncovered check plots once they had reached total spring greenup. "These preliminary results suggest that 0.375 lb a.i./A mefluidide used with a protective turf cover can provide spring bentgrass turf quality without an unwanted surge of growth. We emphasize that this study has only been carried out for one year and further study is needed." |
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| Language: | English |
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| References: | 0 |
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| See Also: | Other items relating to: PROCOV |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Poitras, S., W. J. Johnston, and C. Golob. 1988. Plant growth regulators and winter protective covers on bentgrass putting greens. p. 39-43. In Proceedings of the 42nd Northwest Turfgrass Conference. September 19-22, 1988. Spokane, WA: Northwest Turfgrass Association. |
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| Web URL(s):
https://listings.lib.msu.edu/nwtgc/1988.pdf#page=45
Last checked: 01/17/2017
Requires: PDF Reader |
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MSU catalog number: SB 433 .N6 no. 42 |
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