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| Web URL(s): | http://www.newss.org/proceedings/proceedings_1996_vol50.pdf#page=170
Last checked: 07/24/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Watschke, T. L. |
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| Author Affiliation: | Professor, Department of Agronomy, Penn State University, University Park, PA |
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| Title: | Growth regulators and Poa annua |
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| Meeting Info.: | Williamsburg, VA; January 2-5, 1996 |
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| Source: | Proceedings of the 50th Annual Meeting of the Northeastern Weed Science Society. Vol. 50, 1996, p. 170. |
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| Publishing Information: | College Park, MD: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Agrostis; Conversion; Growth regulator evaluation; Inhibitors; Poa annua control; Seedhead inhibition
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| Abstract/Contents: | "The use of plant growth regulators on Poa annua was first attempted as a method to reduce Poa annua in mixed swards with other cool season species. Mitotic inhibitors, such as mefluidide, are very effective in the suppression of seedheads. It was hypothesized that by significantly reducing seedhead production, competitiveness and persistence of Poa annua would be reduced over time. However, long term studies have shown that Poa annua can actually increase in population as a result of seedhead suppression due, in part, to an increase in environmental stress tolerance. Consequently, many golf course superintendents use mitotic inhibitors to improve Poa annua quality through reduction in the amount of seedheads. With the commercialization of growth regulators that reduce growth by limiting cell elongation (gibberelin inhibitors), a chemical tool became availible for golf course superintendents which allows them to manipulate plant competition in favor of species other than Poa annua (paticulary bentgrass Agrostis spp.). Gibberelin inhibitors differentially suppress Poa annua which allows the other species to favorably compete. Conversion of mixed swards to predominately bentgrass instead of Poa annua is a somewhat slow process, but has been accomplished in a number of locations. Applications can be made to all areas of the golf course, even the greens." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Watschke, T. L. 1996. Growth regulators and Poa annua. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 50:p. 170. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_1996_vol50.pdf#page=170
Last checked: 07/24/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: SB 610 .N62 v. 50 |
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Digitally in TIC by file name: newss1996 |
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